Patent US4298712A successfully refreshed from Google Patents.
US4298712A
Expired / Lapsed
US
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Adhesive blends of elastomer, polyolefin, and graft of polyethylene with unsaturated fused ring anhydrides
Assignee: Enron Chemical Co
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Filing: 1977-08-01
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Granted: 1981-11-03
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Expires: 1997-08-01
Abstract
Abstract Compositions of matter having among other desirable characteristics strong adhesive properties to various substrates, these compositions comprising blends of a graft copolymer of a high density polyethylene and at least one unsaturated fused ring carboxylic acid anhydride blended with a polyethylene resin of one or more hompolymers of ethylene, copolymers of ethylene and alpha-olefin, ethylene-ester copolymers and one or more elastomers such as homopolymers of isobutylene, copolymers of isobutylene with isoprene, chlorinated copolymers of isobutylene and isoprene, homopolymers of isoprene, copolymers of butadiene and styrene, block copolymers of dienes and styrene where the diene is butadiene or isoprene, homopolymers of butadiene, homopolymers of chloroprene, and copolymers of acrylonitrile and butadiene.
Inventors
- 👤 John Machonis, Jr.
- 👤 Seymour Schmukler
- 👤 Robert J. Zeitlin
- 👤 Mitsuzo Shida
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 08:11
CPC Classifications
C; C09; C09J; C09J151/00; C09J151/06; C09J109/00; C09J109/06; C09J111/00; C09J123/00; C09J123/02; C09J123/04; C09J123/08; C09J123/18; C09J123/20; C09J123/22; C09J125/00; C09J125/02; C09J125/04; C09J125/08; C09J125/10; C09J153/00; C09J153/02; C08; C08L; C08L2666/00; C08L2666/02; C08L2666/04
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
169 words
A modified polyolefin blend having improved adhesion to various substrates and consisting essentially of: (a) about 0.1-95 parts by weight in said blend of a graft copolymer of about 70-99.999 wt.% of a high density polyethylene backbone grafted with about 30-0.001 wt.% of at least one compound containing at least one member of the group consisting of x-methylbicyclo(2.2.1)hept-5-ene-2,3-dicarboxylic acid anhydride and bicyclo(2.2.1)hept-5-ene-2,3-dicarboxylic acid anhydride blended with both (b) at least one elastomer of the class consisting of homopolymers of isobutylene, copolymers of isobutylene, homopolymers of chloroprene, copolymers of a diene and a vinyl aromatic compound, block copolymers of a diene and a vinyl aromatic compound, copolymers of a hydrogenated diene and a vinyl aromatic compound, hydrogenated block copolymers of a diene and a vinyl aromatic compound, homopolymers of butadiene, and a copolymer of an ethylenically unsaturated nitrile and a diene, and (c) at least one polyolefin resin of the class consisting of homopolymers of ethylene, copolymers of ethylene and an ethylenically unsaturated ester, and copolymers of ethylene and alpha-olefin.
Claim 2
Dependent Claim
169 words
A modified polyolefin blend having improved adhesion to various substrates and consisting essentially of: (a) about 0.1-95 parts by weight in said blend of a graft copolymer of about 70-99.999 wt.% of a high density polyethylene backbone grafted with about 30-0.001 wt.% of at least one compound containing at least one member of the group consisting of x-methylbicyclo(2.2.1)hept-5-ene-2,3-dicarboxylic acid anhydride and bicyclo(2.2.1)hept-5-ene-2,3-dicarboxylic acid anhydride blended with both (b) at least one elastomer of the class consisting of homopolymers of isobutylene, copolymers of isobutylene, homopolymers of chloroprene, copolymers of a diene and a vinyl aromatic compound, block copolymers of a diene and a vinyl aromatic compound, copolymers of a hydrogenated diene and a vinyl aromatic compound, hydrogenated block copolymers of a diene and a vinyl aromatic compound, homopolymers of butadiene, and a copolymer of an ethylenically unsaturated nitrile and a diene, and (c) at least one polyolefin resin of the class consisting of homopolymers of ethylene, copolymers of ethylene and an ethylenically unsaturated ester, and copolymers of ethylene and alpha-olefin.
Claim 3
Dependent Claim
21 words
The blend of claim 1 wherein said graft copolymer of (A) comprises a high density polyethylene polymer and x-methylbicyclo(2.2.1)hept-5-ene-2,3-dicarboxylic acid anhydride.
Claim 4
Dependent Claim
16 words
The blend of claim 1 wherein said (B) comprises polyisobutylene and (C) comprises high density polyethylene.
Claim 5
Dependent Claim
16 words
The blend of claim 1 wherein said (C) comprises polyethylene and (B) comprises chlorinated butyl rubber.
Claim 6
Dependent Claim
14 words
The blend of claim 1 wherein said (C) comprises polyethylene and (B) comprises neoprene.
Claim 7
Dependent Claim
25 words
The blend of claim 1 wherein said (C) comprises polyethylene and (B) comprises a styrene-isoprene block copolymer in which the isoprene is substantially completely hydrogenated.
Claim 8
Dependent Claim
18 words
The blend of claim 1 wherein said carboxylic acid anhydride of (A) consists essentially of x-methylbicyclo(2.2.1)hept-5-ene-2,3-dicarboxylic acid anhydride.
Claim 9
Dependent Claim
21 words
The blend of claim 1 wherein said graft copolymer of (A) comprises a high density polyethylene polymer and bicyclo(2.2.1)hept-5-ene-2,3-dicarboxylic acid anhydride.
Claim 10
Dependent Claim
17 words
The blend of claim 8 wherein said (B) comprises polyisobutylene and said (C) comprises high density polyethylene.
Claim 11
Dependent Claim
32 words
The blend of claim 1 wherein said graft copolymer of (A) comprises a high density polyethylene polymer and x-methylbicyclo(2.2.1)hept-5-ene-2,3-dicarboxylic acid anhydride, said (B) comprises polyisobutylene and said (C) comprises ethylene-vinyl acetate copolymer.
Claim 12
Dependent Claim
33 words
The blend of claim 1 wherein said graft copolymer of (A) comprises a high density polyethylene polymer and x-methylbicyclo(2.2.1) hept-5-ene-2,3-dicarboxylic acid anhydride, said (B) comprises polyisobutylene and said (C) comprises low density polyethylene.
Claim 13
Dependent Claim
36 words
The blend of claim 1 wherein said graft copolymer of (A) comprises a high density polyethylene polymer and x-methylbicyclo(2.2.1)hept-5-ene-2,3-dicarboxylic acid anhydride, and said (B) comprises a hydrogenated block copolymer of a diene and vinyl aromatic compound.
Claim 14
Dependent Claim
12 words
The blend of claim 12 wherein said (C) comprises high density polyethylene.
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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) | 1984-11-02 | 1985-05-04 | 1985-11-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-11-02 | 1989-05-04 | 1989-11-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-11-02 | 1993-05-04 | 1993-11-03 | $7700.00 | Window Closed / Lapsed |