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`PATENT NUMBER
`646t300,
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`ISSUING CLASSI FICATION
`
`TERMINAL
`DISCLAIMER
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`I fne term of this patent
`suosequent to _
`has been disclaimed.
`L- The term of this Datent
`not extend beyond the expiration date
`of U.S Patent. No.
`
`(date)
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`NOTICE OF ALLOWANCE MAILED
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`L-l The terminal _months of
`this patent have been disclaimed.
`
`ISSUE BATCH NUMBER
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`Theinformationdisclosedhereinmayberestricted. Unauth^o.rizedd^isclosuremaybe.prohibited_bytheUnitedStatesCodeTiile35,Sectionsl22,
`the u s' Patent & Trademark ottice is rlstricred to authorized employees and contractors only.
`Possession outsid€
`vg srrs vvrr$qvrvtD uilty.
`FTLED WtrH: ! orsx 1cnrl
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`Fom PTO-ttil6A
`(Rev.6/99)
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`09/55${{7
`
`CONTENTS
`Date Received
`(lncl. C. of M.)
`
`4n
`INITIALS .)'A'
`2N
`P
`Date Recelve4
`(lncl. G. of M.)
`or
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` 2
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`

`
`PATENT APPLICATION SERIAL NO.
`
`U.S. DEPARTMENT OF COMMERCB
`PATENT AND TRADEMARK OFFICE
`FEE RECORD SHEET
`
`A
`
`Itn'{
`
`05/04/e000 DFLoYD 00000003 16'e480 09558447
`01 F[:l0l
`t'12 F[:103
`
`690.00 CH
`90.00 CH
`
`PTO-1556
`(s187)
`
`'U.S. GPO: 1999'459-082n9144
`
` 3
`
`

`
`fi le:///c :/APPS/preexarn/conespon dence/ I . hhn
`
`I til] lilt illl llill llil llllll lil lllll lil ffi | l[| lilll I llil
`Bib Data Sheet
`
`UNITED STATES DEPARTMENT OF COMMERCE
`Patent and Trademark Office
`Address: COMMISSIONER OF PATENTS AND TRADEMARKS
`Washingon, D.C.20231
`
`f'
`ll
`
`i
`
`ll
`
`\\
`
`i I I I
`
`li
`l!ti
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`
`David Scott Dunlop, Mason, OH ;
`Susan Marie Guskey, Montgomery, OH ;
`Vicente Eduardo Leyba, Los Ruices, VENEZUELA:
`Douglas Allan"Royce, Aurora, lN I
`
`CoNTINUING DATA ******rt************r****
`,
`THIS APPLN CLAIMS BENEFIT OF 60/132,869 05/03/1999 T
`
`t ?'t
`
`Priority claimed E y".
`USC 119 (a-d) conditions E yes
`
`Procter & Gamble Company
`1511 Reed Hartman Highway
`
`innati.OH 45241
`
`and conditioning shampoos containing polyalkylene glycols and cationic polymers
`
`FILING FEE
`RECEIVED
`910
`
`Authority has been given in Paper
`to charge/credit DEPOSIT ACCOUNT
`for following:
`
`E 1.to F""t
`fl t.tz Fees (Processing Ext. of
`
`E t.tg Fees ( lssue
`
`I of I
`
`i
`
`I
`
`I
`
`7t26t00 5\
`
` 4
`
`

`
`Plece type a plus sign (+) in this box -+ [+]
`
`4 '2- G, -c)a
`
`4-PTO/SB/o5 (ZeE)
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`
`{|
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`Under the Papenrork Reduction Act of 1995, no persons aroffequired to respond to a coll rction of information unless it displays a valid OMB
`&A*
`UTILITY
`Auorney Docket No. 7544M
`First Inventor or Application ldentifier I Dnid Scott Dunlop et al. d-:f
`PATENT APPLICATION
`'
`ANTI-DANDRI.JFFANDCONDITIONINGSHAMPOOS :'H
`TRANSMITTAL
`Title
`CONTAINING POLYALKYLENE GLYCOL AND CATIONF \.,
`POLYMERS
`SS i
`.X g
`Express Mail Label No. I EK449217922U5
`Assistant Commissioner for Patents
`ADDRESS TO: Box Patent Application
`Washington, DC 20231
`6. tr Microfiche Computer Program (Appendix)
`7. Nucleotide and/or Amino Acid Sequence Submission
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`9. tr 37 CFR 3.73(b) Statement g Power of
`(when there is an assignee) Attorney
`10. tr English Translation Document (if applicable)
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`12. E Preliminary Amendment
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`14. tr Small Entity El Stmt. filed in prior application,
`Statement(s) Status still proper and desired
`15. El Certified Copy of Priority Document(s)
`(ifforeign priority is claimed)
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`J.
`4.
`
`l. g Fee TransmittalForm
`(Submit an original and a duplicate for fee processing.)
`2. V Specification [Total Pages = 45 + abstract]
`(prefened arrangement set fortl below)
`Descriptive title of the Invention
`- Cross References to Related Applications
`- Statement Regarding Fed Sponsored R&D
`- Reference to Microfiche Appendix
`- Background of the Invention
`Brief Summary of the Invention
`- Brief Description of the Drawings (if filed)
`Detailed Description
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`tr Drawing(s) (35USC ll3)
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`Oath or Declaration
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`lNote Box 5 belowl
`i. tr DELETION OF INVENTOR(S)
`Signed statement attached deleting inventor(s)
`named in the prior application, see 37 CFR
`$S 1.63(dX2) and 1.33(b).
`tr Incorporation By Reference (useabtc if Box 4b is checked)
`' The entire disclosure of the prior application, from
`which a copy of the oath or declaration is supplied
`under Box 4b, is considered as being part ofthe
`disclosure of the accompanying application and is
`hereby incorporated by reference therein.
`17 . lt a CONTINUING APPLICATION, check appropriate box, and supply the requisite information below and in a preliminary amendment:
`E Continuation tr Divisional E Continuation-in-part (CIP) of prior application No. /
`Frior application information: Examiner: _
`Group/Art Unit:
`18. CORRESPONDENCE ADDRESS
`
`r6. tr Other:
`
`.
`
`E Customer Number or Bar Code Label
`
`or EI Conespondence address below
`
`ADDRESS
`
`NAME Andrew A Paul--Box 325
`The Procter & Gamble Company
`Sharon Woods Technical Center
`1l5l I Reed Hartman Highway
`zrP coDE | 45241
`CITY Cincinnati
`STATE I OH
`TELEPHONE | (513) 626-2404
`FAX I 6t3) 626-r3ss
`COUNTRY U.S.
`Burden Hour Statement: This form is estimated to take 0.2 hours to
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`Office, Washington, DC 20231. DO NOT SEND FEES OR COMPLETED FORMS TO THIS ADDRESS. SEND TO: Assistant Commissioner
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`

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`Under the Paperwork Reduction Act of 1995, no persons are required to respond to a collection of information unless it displays a valid OMB control number.
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`x $18.00 =
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`
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`
`19. Small entity status:
`a. El A small entity statement is enclosed.
`b. El A small entity statement was filed in the prior nonprovisional application and such status is
`still proper and desired.
`c. El Is no longer claimed.
`20. The Commissioner is hereby authorized to credit overpayments or charge the following fees to
`Deposit Account No. l6-2480:
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`b. M Fees required under 37 CFR 1.17.
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`22. E Other:
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`
`23. SIGNATURE OF APPLICANT, ATTORNEY, OR AGENT REQUIRED
`NAME
`Andrew:\ Par[Qa6,405)
`SIGNATURE
`DATE
`
`-54'aZ_
`
`25 ApriI,2000
`
`[Page2 of 2]
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`'Exprcsr Mail" mailing label nmbcr E K44921?922US
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`I hercby eniry thd this paper/fce is bcing deposired with rhe United
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`UTILITY
`PATENT APPLICATION
`TRANSMITTAL
`
`(Only for new nonprovisional applications under 37 CFR
`
`APPLICATION ELEMENTS
`
`ANTI-DANDRUFFANDEM
`coNrArNrNc poLyALKyLENE Gt,ycor eNo ca-rio*{€
`POLYMERS
`jll
`
`Assistant Commissioner for Fdffi
`ADDRESS TO: Box patent Application 'n
`Washington, DC 20231
`tr Microfiche Computer program (eppendix)
`
`6.
`
`7.
`
`Nucleotide and/or Amino Acid Sequence Submission
`(if applicable, all necessary)
`a. E Computer Readable Copy
`b. tr Paper Copy (identical to computer copy)
`c. El Statement verifuing identity of above
`ACCOMPANYING APPLICATIoII PAM
`tr Assignment Papers (cover sheet & document(s))
`tr 37 CFR 3.73(b) Statement V power of
`(when there is an assignee)
`English Translation Document (if applicable)
`
`Preliminary Amendment
`Return Receipt Postcard (MpEp 503)
`(Should be specifically itemized)
`Small Entity E Sunt. filed in prior application,
`Statement(s) Status still proper and desired
`Certified Copy of Prioriry Document(s)
`(ifforeign priority is claimed)
`
`See MPEP chapter 600 conceming utility patent application contents.
`1. V Fee Transmittal Form
`(Submit an original and a duplicate for fee processing.)
`2. V Specification [Total pages: 45 + abstract]
`(preferred arrangement set forth below)
`- Descriptive title of the Invention
`- Cross References to Related Applications
`- Statement Regarding Fed Sponsored R&D
`- Reference to Microfiche Appendix
`Background of the Invention
`Brief Summary of the Invention
`Brief Description of the Drawings (if filed)
`Detailed Description
`Claim(s)
`Abstract of the Disclosure
`3. tr Drawing(s) (35 USC I 13) [Total Sheets = 0]
`4. Oath or Declaration
`[Total pages = 2]
`a. M Newly executed (original or copy)
`b. tr Copy from a prior application (32 CFR 1.63(d)
`(for continuation/divisional with Box l7 completed)
`[Note Bor 5 belowl
`i. tr DELETION OF INVENTOR(S)
`Signed statement attached deleting inventor(s)
`named in the prior application, see 32 CFR
`$$1.63(dX2) and 1.33(b).
`5. tr Incorporation By Reference (useable if Box 4b is checked)
`The entire disclosure of the prior application, from
`which a copy of the oath or declaration is supplied
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`disclosure of the accompanying application and is
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`by reference therein.
`IfaCoNTINUINGAPPLICATIoN,checkappropriatebox,and'upprytt'i'.qui,it.in6rmationbe|ow-dinup,.li'ffi
`E Continuation fl Divisional E Continuation-in-part (CIP) of prior application No. /
`-
`,plert U"it
`18. CORRESPONDEN,IM
`
`O Customer Number or Bar Code Label
`
`llnsert CustomerNo. br attach bar code label
`Andrew A Paul--Box 325
`The Procter & Gamble Company
`Sharon Woods Technical Center
`l 15l l Reed Hartman Highway
`
`or EI Conespondence address below
`
`(sr3) 626-2404
`
`(513) 626-135s
`
` 7
`
`

`
`Please type a plus sign (+) in this box -+ [+]
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`PTO/SB|29 (t2t97)
`Approved for use through 09/30100. OMB 065 l -0032
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`Under the Paperwork Reduction Act of 1995, no persons are required to respond to a collection of information unless it displays a valid OMB control number.
`
`(37 CFR l.l5(c))
`
`x$18.00=
`
`PLE DEPENDENT CLAIMS (if applicable)(37 CFR l.l6(d))
`
`19. Small entity status:
`a. El A small entity statement is enclosed.
`b. EI A small entity statement was filed in the prior nonprovisional application and such status is
`still proper and desired.
`c. E Is no longer claimed.
`20. The Commissioner is hereby authorized to credit overpayments or charge the following fees to
`Deposit Account No. 16-2480:
`a. M Fees required under 37 CFR 1.16.
`b. M Fees required under 37 CFR 1.17.
`c. El Fees required under 37 CFR 1.18.
`21. A A check in the amount of $
`22. E Other:
`
`is enclosed.
`
`23. SIGNATURE OF APPLICANT, ATTORNEY, OR AGENT REQUIRED
`Andrew A Paul (P45gW
`NAME
`SIGNATURE
`DATE
`
`25 April,/400
`
`lPage2 of 2l
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`2023t.
`
` 8
`
`

`
`"Expau Mail" miling hbcl trwbcr EK449217922US
`
`Datc of Dep$ir
`
`I hccby €niry
`thar drir p.pcrlft. ii bcing dcpositrd wirh h
`Unit€d Strt ! Pornl Scryie 'Expc$ M.il Pott Ofre b
`AddBs' spi@ udcr 37 CFR l.l0 on rhc de indic.t€d abovc
`od i! rddRscd b tfie Alsist Commirsioncr for Patdt
`
`P&G Case 7544M
`
`ANTI-DANDRUFF AND CONDITIONING SHAMPOOS
`CONTAINING POLYALKYLENE GLYCOLS AND CATIONIC POLYMERS
`t'\,cz fifuvc,t*:*'t* LrAn^at?F*.^.+U
`rhp{
`,.err--rld'flof,
`d<r .b uo f t71,cbe7 ts{#!.#B$f;ot t tt.
`
`^n*
`
`Susan Marie Guskey
`
`Vicente Eduardo Leyba
`
`Douglas Allan Royce
`
`l0
`
`l5
`
`TECHNICAL FIELD OF THE INVENTION
`The present invention relates to shampoo compositions which provide a superior
`combination of anti-dandruff effrcacy and conditioning. These compositions contain anionic
`surfactants, conditioning agents, anti-dandruff particulates, cationic polyners, polyalkylene glycols,
`
`20
`
`and water.
`
`25
`
`30
`
`BACKGROUND OF THE INVENTION
`Shampoo compositions comprising various combinations of detersive surfactants and
`conditioning agents, especially silicone conditioning agents, are known in the art and are
`commercially available. Many of these compositions have been found to provide excellent hair
`cleansing and conditioning performance. For example, Pantene@ Shampoo Plus Pro-Vitamin
`Conditioner-in-One formulas which contain anionic surfactants, a cationic polymer and silicone
`conditioning agents provide excellent cleaning, conditioning and hair feel benefits upon application
`
`to hair.
`
`Anti-dandruff shampoos are also well known in the art and are also commercially available.
`Anti-dandruff shampoos typically incorporate an anti-dandruff active and detersive surfactants.
`Among the preferred type of anti-dandruff agents are particulate, crystalline anti-dandruff agents,
`such as sulfur, selenium disulfide and heavy metal salts of pyridinethione. Soluble anti-dandruff
`
`agents, such as ketoconazole, are also known in the art.
`
` 9
`
`

`
`Anti-dandruffshampoos which also provide conditioning benefits are likewise known in the
`art. For example, U.S. Pat. No. 5,624,666 exemplifies and claims shampoo compositions which
`contain anionic surfactants, cationic polymers and zinc pyridinethione as an anti-dandruff agent.
`
`U.S. Pat. No. 5,624,666 teaches that conditioning agents such as silicone fluids can optionally be
`incorporated into the compositions therein. Head & Shoulders@ Dandruff Shampoo Plus
`Conditioner is an example of a marketed product which provides both anti-dandruffand conditioning
`
`benefits upon application of the shampoo to hair.
`
`l0
`
`Nevertheless, some consumers desire a shampoo which provides a superior combination of
`anti-dandruff efficacy and conditioning performance versus currently marketed products. Such a
`
`superior combination of effrcacy and conditioning can be difficult to achieve.
`For example, it was previously believed that excellent anti-dandruff effrcacy could be
`achieved by utilizing a coacervate to deposit anti-dandruff actives on the hair and scalp.
`Unfortunately, the use of coacervates to deposit anti-dandruff actives on the hair or scalp can
`negatively affect conditioning, specifically clean hair feel. In order to achieve good conditioning, the
`
`15
`
`level of anti-dandruff agent could be reduced, resulting in good conditioning, but less than optimal
`
`anti-dandruff efficacy.
`
`Applicants have now discovered, however, that, surprisingly, bioavailabilitv and coverase
`
`of the anti-dandruff active are much more predictive of efficacy than deposition of the active on the
`
`hair or scalp. In fact, Applicants have found that, in some cases, even when an anti-dandruff active
`deposited very well on the hair and scalp, acceptable anti-dandruff efficacy was not achieved.
`Conversely, good anti-dandruff effrcacy could be achieved in situations where the antidandruff
`
`active had good coverage and was highly bioavailable, but did not deposit superiorly to the hair or
`
`scalp. Thus, in order for a shampoo composition to provide a superior combination of anti-dandruff
`efficacy and conditioning compared to known shampoo compositions, it must meet certain criteria
`with respect to bioavailability and coverage, but it does not necessarily have to have the ability to
`
`20
`
`25
`
`deposit the anti-dandruff active superiorly on the hair or scalp.
`It is an object of the present invention to provide shampoo compositions, which provide a
`superior combination of anti-dandruff efficacy and conditioning. It is also an object of the present
`invention to provide a method for cleansing and conditioning the hair. These, and other objects, will
`
`30
`
`become readily apparent from the detailed description below.
`
`SUMMARY OF THE INVENTION
`The present invention relates to shampoo compositions which provide a superior
`combination of anti-dandruff efficacy and conditioning. These shampoo compositions comprise: (A)
`from about 5% to about Slo/o,by weight, of an anionic surfactant; (B) from about 0.01% to about
`
`35
`
`10Yo, by weight, of a non-volatile conditioning agent; (C) from about 0.1% to about 4Yo, by weight,
`of an anti-dandruff particulate; (D) from about 0.02% to about S%qby weight of the composition, of
`
`,7
`
`
`10
`
`

`
`at least one cationic polymer; (E) from 0.005% to about l.So/o,by weight, of a polyalkylene glycol;
`and (F) water. The polyalkylene glycol corresponds to the formula H(O-CHr-CHR)'-OH, wherein R
`is hydrogen, methyl or mixtures thereof and n is an integer having an average value from about
`
`1,500 to about 120,000.
`
`The present invention further relates to a method for providing anti-dandruff efficacy and
`conditioning hair comprising applying to the hair and scalp an amount of the above-described
`composition which is effective to provide such benefits.
`
`l0
`
`l5
`
`20
`
`25
`
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`DETAILED DESCRIPTION OF THE INVENTION
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`The shampoo compositions of the present invention provide a superior combination of anti-
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`dandruff efficacy and conditioning. Such anti-dandruff and conditioning shampoo compositions of
`the present invention can comprise, consist of, or consist essentially of the essential elements and
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`limitations of the invention described herein, as well as any of the additional or optional ingredients,
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`components or limitations described herein.
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`Particularly, these compositions comprise anionic surfactants, conditioning agents, anti-
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`dandruff particulates, cationic polymers, polyalkylene glycols and water. Upon dilution, the anionic
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`surfactants and cationic polymers form a coacervate, and the type and level of polyalkylene glycol
`employed will influence the amount of anti-dandruff particulates that are bioavailable. This is
`important for anti-dandruff efficacy and conditioning.
`The components, including those which may optionally be added, of the shampoo
`compositions of the present invention, as well as methods for preparation, and methods for use, are
`
`described in detail below.
`
`I. Components
`The anti-dandruff and conditioning shampoo compositions of the present invention
`comprise an anionic surfactant, a conditioning agent, an anti-dandruff particulate, at least one
`cationic polymer, a polyalkylene glycol, and water. Each of these ingredients is described in detail
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`below.
`
`A. Anionic surfactant
`The anti-dandruff and conditioning shampoo compositions of the present invention
`comprise from about 5% to about 50%o,by weight of the composition, preferably from about 8% to
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`about 3 0ol0, more preferably from about l0% to about 25Yo, most preferably from about l2Yo to about
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`l8%o, of an anionic detersive surfactant component suitable for application to the hair or skin. The
`anionic detersive surfactant is believed to provide cleaning and lather performance to the
`composition. Additionally, the anionic detersive surfactant forms a coacervate, upon aqueous
`dilution, with the cationic polymer component (described below) of the present invention. This
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`L{
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`coacervate is believed to be important in providing the efficacy and conditioning benefits described
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`herein.
`
`The anionic detersive surfactant component can comprise an anionic detersive surfactant, a
`zwitterionic or an amphoteric detersive surfactant having an attached moiety that is anionic at the pH _
`of the composition, or a combination thereof; preferably an anionic detersive surfactant. Such
`surfactants should be physically and chemically compatible with the essential components described
`herein, and should not otherwise unduly impair product stability, aesthetics or performance.
`Examples of anionic detersive surfactants which may be suitably employed in the shampoo
`compositions herein include, but are not limited to: sulfates, sulfonates, sarcosinates and sarcosine
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`l0
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`derivatives.
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`1. Sulfates
`Prefened anionic detersive surfactants for use in the anti-dandruff and conditioning
`shampoo compositions of the present invention are the alkyl and alkyl ether sulfates. These
`surfactants have the respective formulae ROSO,M and R(C'H.O)"OSO3M, wherein R is alkyl or
`alkenyl from about C, to about C,r, x is an integer having a value from I to 10, and M is a cation
`selected from the group consisting of electropositive covalently bonded moieties (e.g. ammonium),
`alkanolamines (e.g. triethanolamine), monovalent metals (e.g. sodium or potassium), polyvalent
`metal cations (e.g. magnesium and calcium) and mixtures thereof. The cation M should be selected
`such that the anionic detersive surfactant component is water soluble. Solubility of the surfactant
`will depend upon the particular anionic detersive surfactants and cations chosen.
`Preferably, R is from about C, to about C,r, more preferably from about C,o to about C,u,
`most preferably from about C,, to about C,o, in both the alkyl and alkyl ether sulfates. The alkyl
`ether sulfates are typically made as condensation products of ethylene oxide and monohydric
`alcohols from about C, to about Cro. The alcohols can be synthetic or they can be derived from fats,
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`e.9., coconut oil, palm kemel oil, and tallow. Lauryl alcohol and straight chain alcohols derived from
`coconut oil or palm kernel oil are preferred. Such alcohols are reacted with from 0 to about 10,
`preferably from about 2 to about 5, most preferably about 3, moles of ethylene oxide. The resulting
`mixture of molecular species will have, for example, an average of 3 moles of ethylene oxide per
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`mole of alcohol, and is sulfated and neutalized.
`Non-limiting examples of alkyl ether sulfates which may be used in the shampoo
`compositions of the present invention include sodium and ammonium salts of coconut alkyl
`triethylene glycol ether sulfate, tallow alkyl triethylene glycol ether sulfate, and tallow alkyl hexa-
`oxyethylene sulfate. Prefened alkyl ether sulfates are those comprising a mixture of individual
`compounds, wherein the compounds in the mixture have an average alkyl chain length from about
`C'o to about C,u and an average degree of ethoxylation of from about I to about 4 moles of ethylene
`
`oxide.
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`20
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`25
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`Specific examples of preferred alkyl sulfates include, but are not limited to, ammonium
`lauryl sulfate, ammonium cocoyl sulfate, potassium lauryl sulfate, potassium cocoyl sulfate, sodium
`lauryl sulfate, sodium cocoyl sulfate, monoethanolamine lauryl sulfate, monoethanolamine cocoyl
`sulfate, diethanolamine lauryl sulfate, triethanolamine lauryl sulfate, triethylamine lauryl sulfate, and
`mixtures thereof. Especially prefened is ammonium lauryl sulfate.
`Specific examples of prefened alkyl ether sulfates include, but are not limited to,
`ammonium laureth sulfate, potassium laureth sulfate, sodium laureth sulfate, monoethanolamine
`laureth sulfate, diethanolamine laureth sulfate, triethanolamine laureth sulfate, triethylamine laureth
`sulfate, and mixtures thereof. Especially prefened is ammonium laureth sulfate.
`Still another class of sulfate surfactants suitable for use in the for use in the anti-dandruff
`and conditioning shampoos of the present invention are the sulfated glycerides, an example of which
`includes, but is not limited to, lauric monoglyceride sodium sulfhte.
`2. Sulfonates
`Also suitable for use in the anti-dandruff and conditioning shampoos of the present
`invention are those anionic detersive surfactants known as olefin sulfonates. As used herein, the term
`"olefin sulfonates" refers to compounds which can be produced by the sulforlation of c-olefrrs by
`means of uncomplexed sulfur trioxide, followed by neutralization of the acid reaction mixture in
`conditions such that any sulfones which have been formed in the reaction are hydrolyzed to give the
`corresponding hydroxy-alkanesulfonates. The sulfur trioxide can be liquid or gaseous, and is
`usually, but not necessarily, diluted by inert diluents, for example by liquid SOr, chlorinated hydro-
`carbons, and the like, when used in the liquid form, or by air, nifogen, gaseous sor, and the like,
`when used in the gaseous form. The a-olefins from which the olefin sulfonates are derived are
`mono-olefins which are from about C,o to about Cro, preferably from about C,, to about C,u.
`Preferably, they are straight chain olefins. In addition to the true alkene sulfonates and a proportion
`of hydroxy-alkanesulfonates, the olefin sulfonates can contain minor amounts of other materials,
`such as alkene disulfonates depending upon the reaction conditions, proportion of reactants, the
`nature of the starting olefins and impurities in the olefin stock and side reactions during the
`sulfonation process. A non-limiting example of such an cr-olefin sulfonate mixture is described in
`U.S. Pat. No. 3,332,880, which description is incorporated herein by reference.
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`20
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`25
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`b
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`Another class of sulfonates suitable for use in the anti-dandruff and conditioning shampoo
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`compositions of the present invention are those anionic detersive surfactants known as p-alkyloxy
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`alkane sulfonates. These surfactants conform to the general Formula (I):
`
`i\
`
`)"rV
`
`l0
`
`l5
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`20
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`25
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`30
`
`where Rr is a straight chain alkyl group from about Cu to about Cro, Rt is a lower alkyl group from
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`about C, to about Cr, preferably C,, and M is a water-soluble cation, as described above.
`Still other sulfonates suitable for use in the anti-dandruff and conditioning shampoo
`compositions of the present invention are those anionic detersive surfactants known as alkyl aryl
`sulfonates. Non-limiting examples of alkyl aryl sulfonates include sodium tridecyl benzene sul-
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`fonate, sodium dodecyl benzene sulfonate, and mixtures thereof.
`Other suitable sulfonates for use in the anti-dandruff and conditioning shampoos of the
`present invention are the water-soluble salts of organic, sulfuric acid reaction products conforming to
`the formula I R'-SO3-M ] where Rr is a straight or branched chain, saturated, aliphatic hydrocarbon
`radical from about C, to about Cro, preferably about C,o to about C,r; and M is a cation described
`above. Non-limiting examples of such anionic detersive surfactants are the salts of an organic
`sulfuric acid reaction product of a hydrocarbon of the methane series, including rso-, neo-, and
`n-paraffins, and a sulfonating agent, e.g., SOr, H2SO4, obtained according to known sulfonation
`methods. The sulfonation methods may include bleaching and hydrolysis. The salts are preferably
`from about C, to about Cro; more preferably from about C,, to about C,r. Preferred are alkali metal
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`and ammonium sulfonated Cr. to Crs n-paraffins.
`Still other suitable sulfonates for use in the anti-dandruff and conditioning shampoo
`compositions of the present invention are the reaction products of fatty acids, which are esterified
`with isethionic acid, and then neutralized with sodium hydroxide. Preferred fatty acids are those
`derived from coconut oil or palm kernel oil. Also suitable are the sodium or potassium salts of fatty
`acid amides of methyl tauride in which the fatty acids are derived from coconut oil or palm kernel
`oil. Other similar anionic surfactants are described in U.S. Pat. No. 2,486,921; U.S. Pat. No.
`2,486,922; and U.S. Pat. No. 2,396,2'78, which descriptions are incorporated herein by reference.
`Other sulfonates suitable for use in the anti-dandruff and conditioning shampoo
`compositions of the present invention are the succinnates, examples of which include, but are not
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`limited to, disodium N-octadecylsulfosuccinate, disodium lauryl sulfosuccinate, diammonium lauryl
`sulfosuccinate, tetrasodium N-(1,2-dicarboxyethyl)-N-octadecylsulfosuccinnate, diamyl ester of
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`sodium sulfosuccinic acid, dihexyl ester of sodium sulfosuccinic acid, dioctyl esters of sodium
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`sulfosuccinic acid, and mixtures thereof.
`3. Sarcosinates and sarcosine derivatives
`Also suitable for use in the anti-dandruff and conditioning shampoos of the present
`invention are those anionic detersive surfactants known as sarcosinates and sarcosine derivatives.
`Sarcosinates are the derivatives of sarcosine and N-methyl glycine, acylated with a fatty acid
`chloride. They conform to the general Formula (II):
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`ot
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`lR-C-N-CH,-C-O-O-X
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`Ic
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`H3
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`l0
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`t5
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`20
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`25
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`wherein RCO- is a falty acid radical and wherein X is either hydrogen (acid form) or a cationic
`species, such as Na* or TEA. (salt form). Non-limiting examples of sarcosinates and sarcosine
`derivatives include: sodium lauryl sarcosinate, lauryl sarcosine, cocoyl sarcosine, and mixtures
`thereof. A preferred sarcosinate is sodium lauryl sarcosinate.
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`B. Conditioning asent
`The anti-dandruff and conditioning shampoo compositions of the present invention
`comprise from about 0.01%to about llo/o,by weight of the composition, preferably from about 0.1%
`to about 8olo, more preferably from about O.lYo to about 5Yo, most preferably from about 0.2o/o to
`about 3.502, of a conditioning agent suitable for application to the hair or skin. It is believed that the
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`conditioning agent provides improved conditioning benefits to the hair, particularly clean hair feel
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`and wet rinse feel.
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`The conditioning agent comprises a water insoluble, water dispersible, non-volatile, liquid
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`that forms emulsified, liquid particles or are solubilized by the surfactant micelles, in the anionic
`detersive surfactant component (described above). Suitable conditioning agents for use in the
`shampoo composition are those conditioning agents characterized generally as silicones (e.g. silicone
`oils, cationic silicones, silicone gums, high refractive silicones, and silicone resins), organic
`conditioning oils (e.g. hydrocarbon oils, polyolefins, and fatty esters) or combinations thereof, or
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`those conditioning agents which otherwise form liquid, dispersed, particles in the aqueous surfactant
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`matrix herein. Such conditioning agents should be physically and chemically compatible with the
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`essential components of the composition, and should not otlerwise unduly impair product stability,
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`aesthetics or performance.
`The concentation of the conditioning agent in the shampoo composition should be
`sufficient to provide the desired conditioning benefits, and as will be apparent to one of ordinary skill
`in the art. Such concentration can vary with the conditioning agent, the conditioning performance
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`desired, the average size of the conditioning agent particles, the type and concentration of other
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`components, and other like factors.
`1. Silicones
`The conditioning agent of the anti-dandruff and conditioning shampoo compositions of the
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`present invention is preferably an insoluble silicone conditioning agent. The silicone conditioning
`agent particles may comprise volatile silicone, non-volatile silicone, or combinations thereof.
`Preferred are non-volatile silicone conditioning agents. If volatile silicones are present, it will
`typically be incidental to their use as a solvent or carrier for commercially available forms of non-
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`volatile silicone materials ingredients, such as silicone gums and resins. The silicone conditioning
`agent particles may comprise a silicone fluid conditioning agent and may also comprise other
`ingredients, such