Patent US5247018A successfully refreshed from Google Patents.
US5247018A
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Thermoplastic resin of elastomer composition having excellent paint adhesion and laminate comprising layer of said thermoplastic elastomer and polyurethane layer
Assignee: Mitsui Chemicals Inc
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Filing: 1992-05-20
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Granted: 1993-09-21
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Expires: 2012-05-20
Abstract
Abstract A modified thermoplastic resin or elastomer composition having excellent paint adhesion is obtained by dynamically heat-treating a peroxide-crosslinkable olefin type copolymer and/or an olefin type plastic and a monomer containing at least one amino group and/or an unsaturated carboxylic acid or a derivative thereof in the presence of an organic peroxide. This thermoplastic resin or elastoemr composition is valuable as a material for an interior automotive trim. If a layer of this thermoplastic elastomer composition is laminated with a polyurethane layer, a laminate having excellent tensile strength and heat resistance, which is especially valuable as an interior trim of a vehicle such as an automobile, is obtained.
Inventors
- 👤 Toshikyuki Maeda
- 👤 Yasuhiko Otawa
- 👤 Katsuo Okamoto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 14:34
CPC Classifications
C; C08; C08L; C08L23/00; C08L23/02; B; B32; B32B; B32B25/00; B32B25/04; C08F; C08F255/00; C08K; C08K5/00; C08K5/04; C08K5/09; C08K5/14; C08K5/16; C08K5/17; C08L23/10; C08L23/16; C08L23/04; C08L23/08; C08L23/0807; C08L23/0815; C08L2312/00; C08L2666/00; C08L2666/02; C08L2666/04; C08L51/00; C08L51/06; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31551; Y10T428/31573
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
175 words
A partially cross-linked thermoplastic elastomer composition having excellent adhesion capability to a polyurethane resin, which is formed by blending under heating 100 parts by weight of a thermoplastic elastomer, obtained by dynamically heat-treating a blend of (a) 95 to 40 parts by weight of an ethylene/propylene/unconjugated diene rubber having Mooney viscosity ML 1+4 (100° C.) of 40 to 120 and having iodine value of smaller than 16, and (b) 5 to 60 parts by weight of a polypropylene (the sum of components (a) and (b) is 100 parts by weight) and (c) 0.01 to 10 parts by weight of an unsaturated carboxylic acid or a derivative thereof in the presence of an organic peroxide in an amount of 0.2 to 1% by weight based on the sum of the components (a), (b) and (c), with (d) 0.01 to 10 parts by weight of N-aminoethylethanolamine or triethylene-tetramine as an agent for enhancing the adhesion to a polyurethane resin, with the proviso that said thermoplastic elastomer composition has a gel content of 40 to 97% by weight.
Claim 2
Dependent Claim
175 words
A partially cross-linked thermoplastic elastomer composition having excellent adhesion capability to a polyurethane resin, which is formed by blending under heating 100 parts by weight of a thermoplastic elastomer, obtained by dynamically heat-treating a blend of (a) 95 to 40 parts by weight of an ethylene/propylene/unconjugated diene rubber having Mooney viscosity ML 1+4 (100° C.) of 40 to 120 and having iodine value of smaller than 16, and (b) 5 to 60 parts by weight of a polypropylene (the sum of components (a) and (b) is 100 parts by weight) and (c) 0.01 to 10 parts by weight of an unsaturated carboxylic acid or a derivative thereof in the presence of an organic peroxide in an amount of 0.2 to 1% by weight based on the sum of the components (a), (b) and (c), with (d) 0.01 to 10 parts by weight of N-aminoethylethanolamine or triethylene-tetramine as an agent for enhancing the adhesion to a polyurethane resin, with the proviso that said thermoplastic elastomer composition has a gel content of 40 to 97% by weight.
Claim 3
Dependent Claim
78 words
A thermoplastic elastomer composition as set forth in claim 1, wherein at least one additive selected from the group consisting of (e) 0.01 to 100 parts by weight of a peroxide-uncross-linkable rubbery substance, (f) 0.01 to 200 parts by weight of a mineral oil type softener and (g) 0.01 to 100 parts by weight of a fibrous filler per 100 parts by weight of the sum of the components (a) and (b) is further incorporated into the blend.
Claim 4
Dependent Claim
22 words
A thermoplastic elastomer composition as set forth in claim 1, wherein the unsaturated carboxylic acid or the derivative thereof is maleic anhydride.
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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) | 1996-09-20 | 1997-03-22 | 1997-09-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-09-20 | 2001-03-22 | 2001-09-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-09-20 | 2005-03-22 | 2005-09-21 | $7700.00 | Window Closed / Lapsed |