US5225482A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adhesive resin composition, laminate comprising this composition as adhesive layer, and process for preparation thereof
Assignee: Mitsui Chemicals Inc
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Filing: 1992-09-21
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Granted: 1993-07-06
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Expires: 2012-09-21
Abstract
Abstract An adhesive resin composition comprising an ethylene/vinyl acetate copolymer, a styrene polymer resin, graft-modified polyethylene, a polystyrene elastomer and an ethylene/ alpha -olefin copolymer in combination is disclosed. This adhesive resin composition shows an excellent adhesiveness between a metal and a thermoplastic resin. When this adhesive resin composition is used for bonding a polyester resin and a gas-barrier resin, a good bonding which is not degraded even by high-temperature heating can be attained.
Inventors
- 👤 Mikio Nakagawa
- 👤 Masaharu Mito
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 21:51
CPC Classifications
C; C09; C09J; C09J123/00; C09J123/02; C09J123/04; C09J123/08; B; B32; B32B; B32B7/00; B32B7/04; B32B7/12; C08; C08L; C08L2666/00; C08L2666/02; C08L2666/04; C08L2666/24
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
124 words
An adhesive resin composition, which comprises (a) 80 to 50 parts by weight of an ethylene/vinyl acetate copolymer, (b) 25 to 5 parts by weight of a styrene polymer resin, (c) 10 to 2 parts by weight of polyethylene graft-modified with an unsaturated carboxylic acid or a derivative thereof, (d) 18 to 3 parts by weight of a polybutadiene block-hydrogenated polystyrene/polybutadiene/polystyrene block copolymer elastomer and (e) 18 to 3 parts by weight of an ethylene/α-olefin random copolymer which is characterized in that melt flow rate is 0.1 to 50 g/10 min, density is 0.850 to 0.900 g/cm 3 , and ethylene content is 75 to 95 mole %, the total amount of components (a), (b), (c), (d) and (e) being 100 parts by weight.
Claim 2
Dependent Claim
124 words
An adhesive resin composition, which comprises (a) 80 to 50 parts by weight of an ethylene/vinyl acetate copolymer, (b) 25 to 5 parts by weight of a styrene polymer resin, (c) 10 to 2 parts by weight of polyethylene graft-modified with an unsaturated carboxylic acid or a derivative thereof, (d) 18 to 3 parts by weight of a polybutadiene block-hydrogenated polystyrene/polybutadiene/polystyrene block copolymer elastomer and (e) 18 to 3 parts by weight of an ethylene/α-olefin random copolymer which is characterized in that melt flow rate is 0.1 to 50 g/10 min, density is 0.850 to 0.900 g/cm 3 , and ethylene content is 75 to 95 mole %, the total amount of components (a), (b), (c), (d) and (e) being 100 parts by weight.
Claim 3
Dependent Claim
69 words
The adhesive resin composition of claim 1 which comprises (a) 60 to 70 parts by weight of the ethylene/vinyl acetate copolymer, (b) 10 to 20 parts by weight of the styrene polymer resin, (c) 5 to 10 parts by weight of the graft-modified polyethylene, (d) 5 to 10 parts by weight of the block copolymer elastomer, and (e) 5 to 10 parts by weight of the ethylene/α-olefin random copolymer.
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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) | 1996-07-05 | 1997-01-04 | 1997-07-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-07-05 | 2001-01-04 | 2001-07-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-07-05 | 2005-01-04 | 2005-07-06 | $7700.00 | Window Closed / Lapsed |