|||||||||||||I||
`US005378543A
`11
`Patent Number:
`5,378,543
`45
`Date of Patent:
`Jan. 3, 1995
`
`(56)
`
`References Cited
`U.S. PATENT DOCUMENTS
`4,247,652 1/1981 Matsuda et al. ...................... 521/95
`4,894,289 1/1990 Otawa et al........
`... 428/424.2
`5,191,005 3/1993 Murata et al. ...................... 524/269
`5,302,463 4/1994 Murat et al. ........................ 428/517
`FOREIGN PATENT DOCUMENTS
`0266982 11/1988 European Pat. Off. .
`0336780 11/1989 European Pat. Off. .
`220849 9/1990 Japan.
`OTHER PUBLICATIONS
`Database WPIL Week 4190, Derwent Publ. Ltd., Lon
`don, GB; AN 90-310067 and JP-A-2220844 (Bridge
`stone Tire KK) Sep. 1990.
`Database WPIL Week 1990, Derwent Publ. Ltd., Lon
`don, GB; AN 90-143663 and JP-A-2089639 (Toyoda
`Gosei KK) Mar. 29, 1990.
`Primary Examiner-Edith Buffalow
`Attorney, Agent, or Firm-Sherman and Shalloway
`57
`ABSTRACT
`According to the present invention, there is provided a
`thermoplastic elastomer laminate which comprises
`a layer comprising a thermoplastic elastomer (A) com
`posed of a crystalline polyolefin and a rubber, and
`a layer comprising an ultra-high molecular weight poly
`olefin (B) or an ultra-high molecular weight polyole
`fin composition.
`In addition, a glass run channel composed of the ther
`moplastic elastomer laminate is also provided in the
`invention.
`
`8 Claims, 2 Drawing Sheets
`
`United States Patent (19)
`Murata et al.
`
`(54) THERMOPLASTICELASTOMER
`LAMINATES AND GLASS RUN CHANNELS
`MOLDED THEREFROM
`
`75 Inventors: Kazuhiko Murata; Norishige
`-
`Murakami, both of Ichihara; Kyooji
`Muraoka, Waki; Noboru Sakamaki,
`Ichihara, all of Japan
`
`73) Assignee: Mitsui Petrochemical Industries,
`Ltd., Tokyo, Japan
`
`(21) Appl. No.: 165,646
`(22
`Filed:
`Dec. 13, 1993
`
`62)
`
`Related U.S. Application Data
`Division of Ser. No. 872,158, Apr. 22, 1992, Pat. No.
`5,302.463.
`
`Foreign Application Priority Data
`30
`Apr. 22, 1991 JP
`Japan .................................... 3-90666
`Apr. 22, 1991 (JP
`Japan .................................... 3-90667
`Apr. 22, 1991 JP
`Japan .................................... 3-90668
`Apr. 26, 1991 JP
`Japan ...
`... 3-97636
`May 10, 1991 (JP)
`Japan ...
`... 3-105918
`May 10, 1991 JP
`Japan ...
`... 3-105919
`May 10, 1991 (JP)
`Japan .................................. 3-105920
`
`51) Int. Cl'............................................. B32B 27/08
`52 U.S. C. .................................... 428/517; 428/516;
`428/519
`58 Field of Search ............... 428/517,519, 516, 122;
`524/269
`
`
`
`EX1069
`Yita v. MacNeil
`IPR2020-01139
`
`

`

`U.S. Patent
`U.S. Patent
`
`Jan, 3, 1995
`Jan. 3, 1995
`
`Sheet 1 of 2
`Sheet 1 of 2
`
`5,378,543
`5,378,543
`
`F I. G.
`FIG.1
`16
`
`
`
`
`
`

`

`U.S. Patent
`U.S. Patent
`
`Jan. 3, 1995
`Jan. 3, 1995
`
`Sheet 2 of 2
`Sheet 2 of 2
`
`5,378,543
`5,378,543
`
`
`
`
`
`
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`H ol SSNCR
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`

`

`5
`
`15
`15
`
`1.
`1
`
`THERMOPLASTIC ELASTOMER LAMINATES
`THERMOPLASTIC ELASTOMER LAMINATES
`AND GLASS RUN CHANNELS MOLDED
`AND GLASS RUN CHANNELS MOLDED
`THEREFROM
`THEREFROM
`
`5,378,543
`5,378,543
`2
`2
`sliding portions, arid further to carry out the emboss
`sliding portions, arid further to carry out the emboss-
`ment treatment of the surface of said sliding portion
`ment treatment of the surface of said sliding portion
`before or after the above-mentioned lamination of the
`before or after the above-mentioned lamination of the
`nylon film or the like.
`nylon film or the like.
`On one hand, when the conventional glass run chan
`On one hand, when the conventional glass run chan-
`nels are prepared by contour extrusion molding the
`nels are prepared by contour extrusion molding the
`above-mentioned composite material (3), i.e. a non-rigid
`above-mentioned composite material (3),i.e. a non-rigid
`polyvinyl chloride, the production process employed
`polyvinyl chloride, the production process employed
`therefor is simplified. However, this composite material
`therefor is simplified. However, this composite material
`is poor in heat resistance and dimensional stability, and
`is poor in heat resistance and dimensional stability, and
`is inferior in practical performance to the above-men
`is inferior in practical performance to the above-men-
`tioned composite materials (1) and (2).
`tioned composite materials (1) and (2).
`When the conventional glass run channels molded
`When the conventional glass run channels molded
`from the above-mentioned composite materials (1) or
`from the above-mentioned composite materials (1) or
`(2), there is a durability problem of the channels because
`(2), there is a durability problem of the channels because
`the nylon film or the like is laminated by means of an
`the nylon film or the like is laminated by means of an
`adhesive to the window glass sliding portions of the
`adhesive to the window glass sliding portions of the
`draining portions, and there is also such a drawback that
`draining portions, and there is also such a drawbackthat
`the thus laminated nylon film is liable to peel off from
`the thus laminated nylonfilm is liable to peel off from
`said window glass sliding portions with time and upon
`said window glass sliding portions with time and upon
`exposure outdoors. Furthermore, the embossed pattern
`exposure outdoors. Furthermore, the embossed pattern
`formed on the surface of the window glass sliding por
`formed on the surface of the window glass sliding por-
`tions by the embossment treatment is not fully satisfac
`tions by the embossmenttreatmentis not fully satisfac-
`tory in point of combination of fineness and uniformity,
`tory in point of combination offineness and uniformity,
`and there is much room for improvement in intimate
`and there is much room for improvement in intimate
`contacting properties between the window glass sliding
`contacting properties between the window glasssliding
`portion and the window glass at the time of shutting the
`portion and the windowglass at the time of shutting the
`window glass and also in light sliding properties be
`window glass and also in light sliding properties be-
`tween the window glass sliding portions and the win
`tween the window glass sliding portions and the win-
`dow glass at the time of opening the window glass.
`dow glass at the time of opening the window glass.
`Accordingly, there has been desired the advent of
`Accordingly, there has been desired the advent of
`laminates which are excellent in weathering resistance,
`laminates which are excellent in weathering resistance,
`heat resistance and dimensional stability, can be pre
`heat resistance and dimensional stability, can be pre-
`pared by a simplified production process and can be
`pared by a simplified production process and can be
`used for the purposes such as interior automotive trims,
`used for the purposes such as interior automotive trims,
`sealing materials or the like, and also the advent of glass
`sealing materials or the like, and also the adventof glass
`run channels comprising window glass sliding portions
`run channels comprising window glass sliding portions
`molded from said laminates.
`molded from said laminates.
`OBJECT OF THE INVENTION
`OBJECT OF THE INVENTION
`The present invention is intended to solve such prob
`Thepresent invention is intended to solve such prob-
`lems associated with the prior art as mentioned above,
`lems associated with the prior art as mentioned above,
`and an object of the invention is to provide thermoplas
`and an object of the invention is to provide thermoplas-
`tic elastomer laminates excellent in weathering resis
`tic elastomer laminates excellent in weathering resis-
`tance, heat resistance and dimensional stability, which
`tance, heat resistance and dimensional stability, which
`can also be prepared by a simplified production process
`can also be prepared by a simplified production process
`and are excellent in so-called economical efficiency.
`and are excellent in so-called economical efficiency.
`A further object of the invention is to provide glass
`A further object of the invention is to provide glass
`run channels which are excellent not only in economi
`ran channels which are excellent not only in economi-
`cal efficiency but also in durability, intimate contacting
`cal efficiency but also in durability, intimate contacting
`properties with the window glass at the time of shutting
`properties with the window glassat the time of shutting
`the window glass and in easy sliding properties with the
`the window glass and in easy sliding properties with the
`window glass at the time of opening the window glass.
`window glass at the time of opening the windowglass.
`SUMMARYOF THE INVENTION
`SUMMARY OF THE INVENTION
`The first thermoplastic elastomer laminates of the
`The first thermoplastic elastomer laminates of the
`present invention comprises a layer comprising a ther
`present invention comprises a layer comprising a ther-
`moplastic elastomer (A) composed of a crystalline poly
`moplastic elastomer (A) composedof a crystalline poly-
`olefin and a rubber, and a layer comprising an ultra-high
`olefin and a rubber, and a layer comprising an ultra-high
`molecular weight polyolefin (B).
`molecular weight polyolefin (B).
`The thermoplastic elastomer (A) referred to above
`The thermoplastic elastomer (A) referred to above
`preferably includes those obtained by subjecting a mix
`preferably includes those obtained by subjecting a mix-
`ture comprising 70-10 parts by weight of a crystalline
`ture comprising 70—-10 parts by weight of a crystalline
`polypropylene (a) and 30-90 parts by weight of rubber
`polypropylene (a) and 30—90 parts by weight of rubber
`(b) which is ethylene/propylene copolymer rubber or
`(b) which is ethylene/propylene copolymer rubber or
`an ethylene/propylene/diene copolymer rubber (the
`an ethylene/propylene/diene copolymer rubber (the
`sum total of the components (a) and (b) is 100 parts by
`sum total of the components(a) and (b) is 100 parts by
`weight) to dynamic heat treatment in the presence of
`weight) to dynamic heat treatment in the presence of
`
`This is a division of application Ser. No. 07/872,158
`This is a division of application Ser. No. 07/872,158
`filed Apr. 22, 1992 now U.S. Pat. No. 5,302,463.
`filed Apr. 22, 1992 now U.S. Pat. No. 5,302,463.
`FIELD OF THE INVENTION
`FIELD OF THE INVENTION
`This invention relates to thermoplastic elastomer
`This invention relates to thermoplastic elastomer
`10
`laminates effectively useful in preparing interior auto
`laminates effectively useful in preparing interior auto-
`motive trims and sealing materials, and to glass run
`motive trims and sealing materials, and to glass run
`channels molded from said laminates, and more particu
`channels molded from said laminates, and more particu-
`larly to thermoplastic elastomer laminates consisting of
`larly to thermoplastic elastomer laminates consisting of
`a base layer made of thermoplastic elastomer and a
`a base layer made of thermoplastic elastomer and a
`surface layer made of lubricant resin, and to glass run
`surface layer made of lubricant resin, and to glass run
`channels having a window glass sliding portion com
`channels having a window glass sliding portion com-
`posed of said laminates.
`posed of said laminates.
`BACKGROUND OF THE INVENTION
`BACKGROUND OF THE INVENTION
`20
`20
`Various laminates have heretofore been used for pre
`Various laminates have heretofore been used for pre-
`paring interior automotive trims, sealing materials or
`paring interior automotive trims, sealing materials or
`the like. For Example, glass run channel is known as
`the like. For Example, glass run channel is known as
`one of important sealing materials used in automobile.
`one of important sealing materials used in automobile.
`25
`This glass run channel is a guide member provided
`This glass run channel is a guide member provided
`25
`between a window glass and a window frame in order
`between a window glass and a window frame in order
`to make an intimate (liquid tight) sealing operation be
`to make an intimate (liquid tight) sealing operation be-
`tween the window glass and the window frame possible
`tween the window glass and the window framepossible
`while facilitating the ascent-decent and open-shut oper
`while facilitating the ascent-decent and open-shut oper-
`30
`ations of the window glass.
`30
`ations of the window glass.
`Materials used conventionally for preparing glass run
`Materials used conventionally for preparing glass run
`channels include (1) a composite material comprising
`channels include (1) a composite material comprising
`vulcanized rubber consisting essentially of an
`vulcanized
`rubber
`consisting
`essentially
`of
`an
`ethylene/propylene/diene copolymer rubber excellent
`ethylene/propylene/diene copolymer rubber excellent
`35
`in weathering resistance and heat resistance, an adhe
`in weathering resistance and heat resistance, an adhe-
`35
`sive and nylon fiber, (2) a composite material compris
`sive and nylon fiber, (2) a composite material compris-
`ing the above-mentioned vulcanized rubber and an ad
`ing the above-mentioned vulcanized rubber and an ad-
`hesive, and (3) a non-rigid PVC for use in contour ex
`hesive, and (3) a non-rigid PVC for use in contour ex-
`trusion.
`trusion.
`40
`The conventional glass run channels composed of
`The conventional glass run channels composed of
`40
`such composite materials as mentioned above comprise
`such composite materials as mentioned above comprise
`a main body having a groove-like cross-section and
`a main body having a groove-like cross-section and
`tongue-like draining portions, each extending from the
`tongue-like draining portions, each extending from the
`tip of the side wall of groove toward the central side of
`tip of the side wall of groove toward the central side of
`45
`the groove.
`45
`the groove.
`In the conventional glass run channels, a nylon film
`In the conventional glass run channels, a nylon film
`or the like is laminated with an adhesive to the surface
`or the like is laminated with an adhesive to the surface
`of the window glass sliding portion of each draining
`of the window glass sliding portion of each draining
`portion in order that the window glass may part favor
`portion in order that the window glass may part favor-
`50
`ably from said sliding portion and also may be pre
`ably from said sliding portion and also may be pre-
`50
`vented from staining, or the surface of each sliding
`vented from staining, or the surface of each sliding
`portions of the draining portions is subjected, before or
`portions of the draining portionsis subjected, before or
`after the above-mentioned lamination of the nylon film
`after the above-mentioned lamination of the nylon film
`or the like, to embossment treatment in order to lessen
`or the like, to embossment treatment in order to lessen
`55
`the contact area of said sliding portions with the win
`the contact area of said sliding portions with the win-
`55
`dow glass.
`dow glass.
`In a process of preparing such glass run channels as
`In a process of preparing such glass run channels as
`mentioned above, however, there are involved such
`mentioned above, however, there are involved such
`inconveniences as large number of steps and time-con
`inconveniences as large numberof steps and time-con-
`60
`suming jobs, wherein because of no adhesive properties
`suming jobs, wherein because of no adhesive properties
`existing between the above-mentioned non-rigid syn
`existing between the above-mentioned non-rigid syn-
`thetic resin or vulcanized rubber and such surface mate-
`thetic resin or vulcanized rubber and such surface mate
`rial as nylon, it becomes necessary to take the steps of
`rial as nylon, it becomes necessary to take the steps of
`coating the surface of the window glass sliding portions
`coating the surface of the windowglasssliding portions
`65
`of the main body of glass run channel molded from the
`of the main body of glass run channel molded from the
`65
`above-mentioned non-rigid synthetic resin or vulca
`above-mentioned non-rigid synthetic resin or vulca-
`nized rubber with an adhesive, and laminating a nylon
`nized rubber with an adhesive, and laminating a nylon
`film or the like to the surface of said window glass
`film or the like to the surface of said window glass
`
`

`

`5
`
`5,378,543
`5,378,543
`3
`4.
`3
`4
`organic peroxide, said rubber (b) being partially cross
`weight) and (iii) 0.01-10 parts by weight of an a,6-
`organic peroxide, said rubber (b) being partially cross-
`weight) and (ii) 0.01-10 parts by weight of an a,@-
`linked.
`unsaturated carboxylic acid or its derivatives, or an
`linked.
`unsaturated carboxylic acid or its derivatives, or an
`The ultra-high molecular weight polyolefin (B) re
`unsaturated epoxy monomer, said ultra-high molecular
`The ultra-high molecular weight polyolefin (B) re-
`unsaturated epoxy monomer,said ultra-high molecular
`weight polyolefin composition (C) consisting essentially
`ferred to above preferably has an intrinsic viscosity m),
`ferred to above preferably has an intrinsic viscosity [y],
`weight polyolefin composition (C) consisting essentially
`of an ultra-high molecular weight polyolefin having an
`as measured in decalin at 135 C., of 10-40 dl/g.
`as measured in decalin at 135° C., of 10-40 di/g.
`of an ultra-high molecular weight polyolefin having an
`The second thermoplastic elastomer laminates of the
`intrinsic viscosity m), as measured in decalin at 135 C.,
`The second thermoplastic elastomer laminates of the
`intrinsic viscosity [4], as measured in decalin at 135° C.,
`invention comprises a layer comprising a thermoplastic
`of 10-40 dl/g and a polyolefin having an intrinsic vis
`invention comprises a layer comprising a thermoplastic
`of 10-40 dl/g and a polyolefin having an intrinsic vis-
`elastomer (A) composed of a crystalline polyolefin and
`cosity m), as measured in decalin at 135 C., of 0.1-5
`elastomer (A) composed ofa crystalline polyolefin and
`cosity [»], as measured in decalin at 135° C., of 0.1-5
`rubber and a layer, and a layer comprising an ultra-high
`dl/g, said ultra-high molecular weight polyolefin exist
`rubber anda layer, and a layer comprising an ultra-high
`di/g, said ultra-high molecular weight polyolefin exist-
`molecular weight polyolefin composition (C), said ul
`ing in a proportion of 15-40% by weight based on 100%
`molecular weight polyolefin composition (C), said ul-
`ing in a proportion of 15-40% by weight based on 100%
`10
`tra-high molecular weight polyolefin composition con
`by weight of the sum total of the ultra-high molecular
`tra-high molecular weight polyolefin composition con-
`by weight of the sum total of the ultra-high molecular
`sisting essentially of an ultra-high molecular weight
`weight polyolefin and polyolefin, and said ultra-high
`sisting essentially of an ultra-high molecular weight
`weight polyolefin and polyolefin, and said ultra-high
`polyolefin having an intrinsic viscosity m), as measured
`molecular weight polyolefin composition (C) having an
`polyolefin having an intrinsic viscosity [7], as measured
`molecular weight polyolefin composition (C) having an
`in decalin at 135 C., of 10-40 dl/g, and polyolefin hav
`intrinsic viscosity m), as measured in decalin at 135 C.,
`in decalin at 135° C., of 10-40 dl/g, and polyolefin hav-
`intrinsic viscosity [7], as measured in decalin at 135° C.,
`ing an intrinsic viscosity m), as measured in decalin at
`of 3.5-8.3 dl/g.
`ing an intrinsic viscosity [], as measured in decalin at
`of 3.5-8.3 di/g.
`135 C., of 0.1-5dl/g, said ultra-high molecular weight
`The graft-modified thermoplastic elastomer (GA)
`135° C., of 0.1-5 dl/g, said ultra-high molecular weight
`The graft-modified thermoplastic elastomer (GA)
`polyolefin existing in a proportion of 15-40% by weight
`used herein preferably includes the same as used in the
`polyolefin existing in a proportion of 15-40% by weight
`used herein preferably includes the same as used in the
`based on 100% by weight of the sum total of the ultra
`third thermoplastic elastomer laminates of the inven
`based on 100% by weight of the sum total of the ultra-
`third thermoplastic elastomer laminates of the inven-
`high molecular weight polyolefin and polyolefin, and
`tion.
`tion.
`high molecular weight polyolefin and polyolefin, and
`20
`said ultra-high molecular weight polyolefin composi
`In the graft-modified thermoplastic elastomer (GA)
`said ultra-high molecular weight polyolefin composi-
`In the graft-modified thermoplastic elastomer (GA)
`20
`tion (C) having an intrinsic viscosity m), as measured in
`mentioned above, it is desirable that said elastomer
`tion (C) having an intrinsic viscosity [y], as measured in
`mentioned above,
`it is desirable that said elastomer
`decalin at 135 C., of 3.5-8.3 dl/g.
`(GA) contains 95-60 parts by weight of the aforesaid
`decalin at 135° C., of 3.5-8.3 dl/g.
`(GA)contains 95—60 parts by weight of the aforesaid
`peroxide cross-linking olefin copolymer rubber (i) and
`The above-mentioned thermoplastic elastomer (A) is
`The above-mentioned thermoplastic elastomer (A)is
`peroxide cross-linking olefin copolymer rubber (i) and
`the same as used in the first thermoplastic elastomers of
`5-40 parts by weight of the aforesaid polyolefin (ii) (the
`the same as usedin the first thermoplastic elastomers of
`5-40 parts by weight of the aforesaid polyolefin (ii) (the
`25
`the invention.
`sun total of the components (i) and (ii) is 100 parts by
`the invention.
`sum total of the components (i) and (ii) is 100 parts by
`25
`weight).
`The aforesaid ultra-high molecular weight polyolefin
`The aforesaid ultra-high molecular weight polyolefin
`weight).
`composition (C) may contain 1-20% by weight, based
`The ultra-high molecular weight polyolefin composi
`composition (C) may contain 1-20% by weight, based
`The ultra-high molecular weight polyolefin composi-
`on the composition (C), of a liquid or solid lubricant.
`tion (C) used herein may contain 1-20% by weight of a
`on the composition (C), of a liquid or solid lubricant.
`tion (C) used herein may contain 1-20% by weight of a
`The third thermoplastic elastomer laminates of the
`liquid or solid lubricant based on the composition (C).
`The third thermoplastic elastomer laminates of the
`liquid or solid lubricant based on the composition (C).
`invention comprises a layer comprising a graft-modified
`The first glass run channel of the present invention
`invention comprises a layer comprising a graft-modified
`Thefirst glass run channel of the present invention
`thermoplastic elastomer (GA) and a layer comprising
`comprises a main body having a groove-like cross-sec
`thermoplastic elastomer (GA) and a layer comprising
`comprises a main body having a groove-like cross-sec-
`an ultra-high molecular weight polyolefin (B), said
`tion and tongue-like draining portions extending from
`an ultra-high molecular weight polyolefin (B), said
`tion and tongue-like draining portions extending from
`graft-modified thermoplastic elastomer (GA) being
`the tip of side wall of the groove toward the central side
`graft-modified thermoplastic elastomer
`(GA) being
`the tip of side wall of the groove toward the central side
`obtained by dynamic heat treatment and partial cross
`of said groove, portions of said glass run channel to be
`obtained by dynamic heat treatment and partial cross-
`of said groove, portions of said glass run channel to be
`35
`linkage of a blend in the presence of an organic perox
`in contact with the window glass comprising a layer of
`linkage of a blend in the presence of an organic perox-
`in contact with the window glass comprising a layer of
`35
`ide, said blend containing (i) 95-10 parts by weight of
`a thermoplastic elastomer (A) composed of a crystalline
`ide, said blend containing (i) 95—10 parts by weight of
`a thermoplastic elastomer (A) composedofa crystalline
`a peroxide cross-linking olefin copolymer rubber, (ii)
`polyolefin and a rubber and a layer of an ultra-high
`a peroxide cross-linking olefin copolymer rubber, (ii)
`polyolefin and a rubber and a layer of an ultra-high
`5-90 parts by weight of a polyolefin (the sum total of
`molecular weight polyolefin (B), said ultra-high molec
`5-90 parts by weight of a polyolefin (the sum total of
`molecular weight polyolefin (B), said ultra-high molec-
`the (i) and (ii) components is 100 parts by weight) and
`ular weight polyolefin (B) layer being designed so as to
`the (i) and (ii) components is 100 parts by weight) and
`ular weight polyolefin (B) layer being designed so as to -
`40
`(iii) 0.01-10 parts by weight of an ag-unsaturated car
`be in contact with the window glass, and said ultra-high
`Gii) 0.01-10 parts by weight of an a,f8-unsaturated car-
`be in contact with the windowglass, and said ultra-high
`molecular weight polyolefin (B) having an intrinsic
`boxylic acid or its derivatives, or an unsaturated epoxy
`boxylic acid or its derivatives, or an unsaturated epoxy
`molecular weight polyolefin (B) having an intrinsic
`monomer.
`viscosity m), as measured in decalin at 135 C., of 10-40
`viscosity [y], as measured in decalin at 135° C., of 10-40
`OOc.
`dl/g.
`The graft-modified thermoplastic elastomer (GA)
`The graft-modified thermoplastic elastomer (GA)
`dl/g.
`referred to above preferably includes those further con
`The thermoplastic elastomer (A) used herein prefera
`teferred to above preferably includes those further con-
`The thermoplastic elastomer (A) used herein prefera-
`45
`taining (iv) 5-100 parts by weight of a peroxide non
`bly includes those as defined in the first thermoplastic
`taining (iv) 5-100 parts by weight of a peroxide non-
`bly includes those as defined in the first thermoplastic
`45
`cross linking rubbery substance and/or (v) 3-100 parts
`elastomer laminates of the present invention.
`cross linking rubbery substance and/or (v) 3-100 parts
`elastomer laminates of the present invention.
`by weight of a mineral oil softenerbased on 100 parts by
`The second glass run channel of the invention com
`by weight of a mineral oil softener based on 100 parts by
`The second glass run channel of the invention com-
`weight of the sum total of the components (i) and (ii).
`prises a main body having a groove-like cross-section
`weight of the sum total of the components (i) and(ii).
`prises a main body having a groove-like cross-section
`In the graft-modified thermoplastic elastomer (GA)
`and tongue-like draining portions, each extending from
`In the graft-modified thermoplastic elastomer (GA)
`and tongue-like draining portions, each extending from
`50
`mentioned above, it is desirable that the content of the
`the tip of side wall of the groove toward the central side
`mentioned above, it is desirable that the content of the
`the tip of side wall of the groove toward the central side
`50
`peroxide cross-linking olefin copolymer rubber (i) is
`of said groove, portions of said glass run channels to be
`peroxide cross-linking olefin copolymer rubber (ji)
`is
`of said groove, portions of said glass run channels to be
`95-60 parts by weight and that of the polyolefin (ii) is
`in contact with the window glass comprising a layer of
`95—60 parts by weight and that of the polyolefin (ii) is
`in contact with the window glass comprising a layer of
`5-40 parts by weight (the sum total of the components
`a thermoplastic elastomer (A) composed of a crystalline
`5-40 parts by weight (the sum total of the components
`a thermoplastic elastomer (A) composed ofa crystalline
`(i) and (ii) is 100 parts by weight).
`polyolefin and rubber and a layer of an ultra-high mo
`@and Gi) is 100 parts by weight).
`polyolefin and rubber and a layer of an ultra-high mo-
`55
`The ultra-high molecular weight polyolefin (B) used
`lecular weight polyolefin composition (C), said layer of
`The ultra-high molecular weight polyolefin (B) used
`lecular weight polyolefin composition (C), said layer of
`55
`the ultra-high molecular weight polyolefin composition
`herein is the same as used in the first thermoplastic
`herein is the same as used in the first thermoplastic
`the ultra-high molecular weight polyolefin composition
`elastomer laminates of the invention.
`(C) being designed so as to be in contact with the win
`elastomer laminates of the invention.
`(C) being designed so as to be in contact with the win-
`dow glass, said ultra-high molecular weight polyolefin
`The fourth thermoplastic elastomer laminates of the
`The fourth thermoplastic elastomer laminates of the
`dow glass, said ultra-high molecular weight polyolefin
`invention comprises a layer comprising a graft-modified
`composition (C) consisting essentially of an ultra-high
`invention comprises a layer comprising a graft-modified
`composition (C) consisting essentially of an ultra-high
`molecular weight polyolefin having an intrinsic viscos
`thermoplastic elastomer (GA) and a layer comprising
`thermoplastic elastomer (GA) and a layer comprising
`molecular weight polyolefin having an intrinsic viscos-
`an ultra-high molecular weight polyolefin composition
`ity m), as measured in decalin at 135 C., of 10-40 d/g
`an ultra-high molecular weight polyolefin composition
`ity [y], as measured in decalin at 135° C., of 10-40 di/g
`(C), said graft-modified thermoplastic elastomer (GA)
`and a polyolefin having an intrinsic viscosity m), as
`(C), said graft-modified thermoplastic elastomer (GA)
`and a polyolefin having an intrinsic viscosity [ny], as
`being obtained by dynamic heat treatment and partial
`measured in decalin at 135 C., of 0.1-5 di/g, said ultra
`being obtained by dynamic heat treatment and partial
`measured in decalin at 135° C., of 0.1-5 dl/g,said ultra-
`cross-linkage of a blend in the presence of an organic
`high molecular weight polyolefin existing in a propor
`cross-linkage of a blend in the presence of an organic
`high molecular weight polyolefin existing in a propor-
`65
`peroxide, said blend containing (i) 95-10 parts by
`tion of 15-40% by weight based on 100% by weight of
`peroxide, said blend containing @) 95—10 parts by
`tion of 15-40% by weight based on 100% by weight of
`65
`weight of a peroxide cross-linking olefin copolymer
`the sum total of the ultra-high molecular weight poly
`weight of a peroxide cross-linking olefin copolymer
`the sum total of the ultra-high molecular weight poly-
`rubber, (ii) 5-90 parts by weight of a polyolefin (the sum
`olefin and the polyolefin, and said ultra-high molecular
`rubber,(ii) 5-90 parts by weight of a polyolefin (the sum
`olefin and the polyolefin, and said ultra-high molecular
`total of the (i) and (ii) components is 100 parts by
`weight polyolefin composition (C) having an intrinsic
`total of the (i) and Gi) components is 100 parts by
`weight polyolefin composition (C) having an intrinsic
`
`30
`30
`
`

`

`5,378,543
`5,378,543
`5
`5
`viscosity ml, as measured in decalin at 135 C., of
`viscosity [ny], as measured in decalin at 135° C., of
`3.5-8.3 dl/g.
`3.5-8.3 dl/g.
`The thermoplastic elastomer (A) used herein prefera
`The thermoplastic elastomer (A) used herein prefera-
`bly includes those as defined in the first glass run chan
`bly includes those as defined in thefirst glass run chan-
`nel of the present invention.
`nel of the present invention.
`The above-mentioned ultra-high molecular weight
`The above-mentioned ultra-high molecular weight
`polyolefin composition (C) may contain 1-20% by
`polyolefin composition (C) may contain 1-20% by
`weight, based on the composition (C), of a liquid or
`weight, based on the composition (C), of a liquid or
`solid lubricant.
`solid lubricant.
`10
`The third glass run channel of the invention com
`The third glass run channel of the invention com-
`prises a main body having a groove-like cross-section,
`prises a main body having a groove-like cross-section,
`and tongue-like draining portions extending from the tip
`and tongue-like draining portions extending from thetip
`of side wall of the groove toward the central side of said
`of side wall of the groove towardthe central side of said
`groove, portions of said glass run channel to be in
`groove, portions of said glass run channel to be in
`15
`contact with the window glass comprising a layer of a
`contact with the window glass comprising a layer of a
`graft-modified thermoplastic elastomer (GA) and a
`graft-modified thermoplastic elastomer (GA) and a
`layer of an ultra-high molecular weight polyolefin (B),
`layer of an ultra-high molecular weight polyolefin (B),
`said layer of the ultra-high molecular weight polyolefin
`said layer of the ultra-high molecular weight polyolefin
`(B) being designed so as to be in contact with the win
`(B) being designed so as to be in contact with the win-
`20
`dow glass, said graft-modified thermoplastic elastomer
`dow glass, said graft-modified thermoplastic elastomer
`(GA) being obtained by dynamic heat treatment and
`(GA)being obtained by dynamic heat treatment and
`partial cross-linkage of a blend in the presence of or
`partial cr