Patent US6430355B1 successfully refreshed from Google Patents.
Patent US4897298A successfully refreshed from Google Patents.
US4897298A
Expired / Lapsed
US
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Laminate and molded article prepared therefrom
Assignee: Mitsui Chemicals Inc
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Filing: 1988-09-26
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Granted: 1990-01-30
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Expires: 2008-09-26
Abstract
Abstract A laminate comprising (a) a layer of a partially crosslinked graft-modified polyolefin elastomer formed by dynamically heat-treating a mixture of a peroxide-crosslinking olefin copolymer rubber and an olefinic plastic with an unsaturated carboxylic acid or derivative thereof, an unsaturated epoxy monomer or an unsaturated hydroxy monomer in the presence of an organic peroxide and (b) a layer of a polyamide, polyurethane or polyester is excellent in weatherability, heat resistance and dimension stability, and this laminate is effectively molded into an interior part or sealing material of an automobile, especially a glass run channel. The glass run channel molded from this laminate is excellent in the durability, the tightness of contact with glass at the time of closing and the sliding smoothness at the opening-closing operation.
Inventors
- 👤 Yasuhiko Otawa
- 👤 Kunihide Hiraoka
- 👤 Toshiyuki Maeda
- 👤 Katsuo Okamoto
- 👤 Noboru Sakamaki
- 👤 Shizuo Shimizu
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 17:14
CPC Classifications
B; B32; B32B; B32B25/00; B32B25/04; B32B25/08; B32B25/14; B32B27/00; B32B27/34; B32B27/36; B32B27/40; B60; B60J; B60J10/00; B60J10/15; B60J10/17; B60J10/20; B60J10/27; B60J10/70; B60J10/74; B32B2270/00; B32B2307/00; B32B2307/30; B32B2307/306; B32B2307/70; B32B2307/712; B32B2307/732; B32B2307/734; B32B2605/00; B32B2605/08; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/2419; Y10T428/24198; Y10T428/29; Y10T428/2902; Y10T428/31504; Y10T428/31551; Y10T428/31573; Y10T428/31725; Y10T428/31739; Y10T428/31743; Y10T428/31786; Y10T428/31797
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
224 words
A glass run channel having in the cross-section thereof a grooved body portion and a tongue shaped strainer portion expanded from the vicinity of the top of the side wall of the grooved body portion toward the center, which is composed of an olefinic thermoplastic elastomer, wherein at least a part, falling in contact with glass, of the surface of the strainer portion is laminated with a lubricating resin layer through a modified olefin thermoplastic elastomer layer having repeated fine convexities and concavities on the surface thereof so that the repetition of the fine convexities and concavities is retained on the surface of the lubricating resin layer, wherein the modified olefin thermoplastic elastomer is (a) a partially cross-linked graft-modified polyolefin elastomer formed by dynamically heat-treating a blend comprising (i) 10 to 100 parts by weight of a peroxide-cross-linking olefin copolymer, (ii) 0 to 90 parts by weight of an olefinic plastic, the sum of the amounts of the components (i) and (ii) being 100 parts by weight, and (iii) 0.01 to 10 parts by weight of at least one monomer selected from the group consisting of (1) an unsaturated carboxylic acid and a derivative thereof, (2) an unsaturated epoxy monomer and (3) an unsaturated hydroxyl monomer, in the presence of an organic peroxide, and the lubricating resin is (b) a polyamide, polyurethane or polyester.
Claim 2
Dependent Claim
224 words
A glass run channel having in the cross-section thereof a grooved body portion and a tongue shaped strainer portion expanded from the vicinity of the top of the side wall of the grooved body portion toward the center, which is composed of an olefinic thermoplastic elastomer, wherein at least a part, falling in contact with glass, of the surface of the strainer portion is laminated with a lubricating resin layer through a modified olefin thermoplastic elastomer layer having repeated fine convexities and concavities on the surface thereof so that the repetition of the fine convexities and concavities is retained on the surface of the lubricating resin layer, wherein the modified olefin thermoplastic elastomer is (a) a partially cross-linked graft-modified polyolefin elastomer formed by dynamically heat-treating a blend comprising (i) 10 to 100 parts by weight of a peroxide-cross-linking olefin copolymer, (ii) 0 to 90 parts by weight of an olefinic plastic, the sum of the amounts of the components (i) and (ii) being 100 parts by weight, and (iii) 0.01 to 10 parts by weight of at least one monomer selected from the group consisting of (1) an unsaturated carboxylic acid and a derivative thereof, (2) an unsaturated epoxy monomer and (3) an unsaturated hydroxyl monomer, in the presence of an organic peroxide, and the lubricating resin is (b) a polyamide, polyurethane or polyester.
Claim 3
Dependent Claim
52 words
A glass run channel as set forth in claim 1, wherein the blend (a) further comprises (iv) 0 to 100 parts by weight of a peroxide-non-cross-linking rubbery substance having a Mooney viscosity smaller than 60, (v) 0 to 100 parts by weight of a mineral oil softener, or both (iv) and (v).
Claim 4
Dependent Claim
29 words
A glass run channel as set forth in claim 1, wherein the peroxide-cross-linking olefinic plastic (i) of the partially cross-linked graft-modified polyolefin elastomer (a) is an ethylene/propylene/ethylidene norbornene copolymer.
Claim 5
Dependent Claim
58 words
A glass run channel as set forth in claim 1, wherein the amount of the peroxide-cross-linking olefin copolymer rubber (i) is 60 to 95 parts by weight and the amount of the olefinic plastic (ii) is 5 to 40 parts by weight, the sum of the amounts of the components (i) and (ii) being 100 parts by weight.
Claim 6
Dependent Claim
22 words
A laminate as set forth in claim 4, wherein the amount of the monomer (ii) is 0.1 to 5 parts by weight.
Claim 7
Dependent Claim
52 words
A glass run channel as set forth in claim 1, wherein the blend (a) further comprises at least one of (iv) a peroxide-non-cross-linking rubbery substance in an amount of from 5 to 50 parts by weight and (v) a mineral oil softener in an amount from 3 to 100 parts by weight.
Claim 8
Dependent Claim
18 words
A glass run channel as set forth in claim 6, wherein the peroxide-non-cross-linking rubbery substance (iv) is present.
Claim 9
Dependent Claim
18 words
A glass run channel as set forth in claim 6, wherein the mineral oil softener (v) is present.
Claim 10
Dependent Claim
30 words
A glass run channel as set forth in claim 3, wherein the molar ratio between ethylene units and propylene units in the elastomer (a) is from about 55/45 to 85/15.
Claim 11
Dependent Claim
27 words
A glass run channel as set forth in claim 1, wherein the monomer (iii) is maleic acid, bicyclo(2,2,1)hept-2-ene-5,6-dicarboxylic acid or an anhydride of either of these acids.
Claim 12
Dependent Claim
47 words
A glass run channel as set forth in claim 1, wherein the monomer (iii) is said unsaturated epoxy monomer selected from the group consisting of glicodyl esters of unsaturated monocarboxylic acids, monoglycidyl esters of unsaturated polycarboxylic acids, diglicodyl esters of unsaturated polycarboxylic acids, and unsaturated glidcodyl ethers.
Claim 13
Dependent Claim
20 words
A glass run channel as set forth in claim 1, wherein the monomer (iii) is hydroxylethylacrylate, hydroxylethylmethacrylate, hydroxypropylacrylate or hydroxypropylmethacrylate.
Claim 14
Dependent Claim
17 words
A glass run channel as set forth in claim 1, wherein the lubricating resin is a polyamide.
Claim 15
Dependent Claim
17 words
A glass run channel as set forth in claim 1, wherein the lubricating resin is a polyurethane.
Claim 16
Dependent Claim
17 words
A glass run channel as set forth in claim 1, wherein the lubricating resin is a polyester.
Claim 17
Dependent Claim
39 words
A glass run channel as set forth in claim 1, wherein the thickness of the thermoplastic elastomer layer (a) is from 0.1 to 50 mm and the thickness of the lubricating resin (b) is from 3 to 50 microns.
Claim 18
Dependent Claim
41 words
A glass run channel as set forth in claim 1, wherein the body portion and strainer portion of the glass run channel are formed from the same modified olefin thermoplastic elastomer forming the glass contacting portion laminated to the strainer portion.
Claim 19
Dependent Claim
51 words
A glass run channel as set forth in claim 1, wherein the body portion and strainer portion are both formed from a non-graft-modified polyolefin elastomer formed by dynamically heat-treating a blend of the same peroxide-cross-linking olefin copolymer (i) and olefinic plastic (ii) used to form the modified olefin thermoplastic elastomer (a).
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-01-29 | 1993-07-31 | 1994-01-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-01-29 | 1997-07-31 | 1998-01-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-01-29 | 2001-07-31 | 2002-01-30 | $7700.00 | Window Closed / Lapsed |