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US4537836A
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Composite structures
Assignee: Enron Chemical Co
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Filing: 1984-12-04
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Granted: 1985-08-27
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Expires: 2004-12-04
Abstract
Abstract Composite structures incorporating resin blends that are strong adhesives to various substrates and especially to polar substrates. The blends comprise (a) a graft copolymer of a polyethylene backbone grafted with at least one grafting monomer comprising one or more polymerizable ethylenically unsaturated carboxylic acids or acid derivatives such as acid anhydrides, acid esters, salts, amides, imides and the like, (b) a LDPE, a linear low density polyethylene, or an ethylene-unsaturated ester copolymer, and (c) a poly (α-olefin).
Inventors
- 👤 Ashok M. Adur
- 👤 Seymour Schmukler
- 👤 John Maconis, Jr.
- 👤 Mitsuzo Shida
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 17:23
CPC Classifications
C; C09; C09J; C09J123/00; C09J123/02; C09J123/18; B; B32; B32B; B32B27/00; B32B27/04; C09J123/04; C09J151/00; C09J151/06; C08; C08L; C08L2666/00; C08L2666/02; C08L2666/04; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31725; Y10T428/31739; Y10T428/31743; Y10T428/31746; Y10T428/31855; Y10T428/31935; Y10T428/31938
Claims Analysis
Total Claims: 61
Claim 1
Independent Claim
142 words
A composite structure comprising: (a) a substrate, and adhered thereto (b) an adhesive blend consisting essentially of: (1) about 0.1 to less than about 40 parts by weight in said blend of a graft copolymer of about 70-99.95 wt.% of a polyethylene backbone grafted with about 30-0.05 wt.% of at least one grafting monomer comprising at least one polymerizable ethylenically unsaturated carboxylic acid or carboxylic acid derivative for a total of 100%, and (2) about 0.1-99 parts by weight in said blend of LDPE, or ethylene-unsaturated ester copolymers, or LLDPE or mixtures thereof, and (3) about 0.1-60 parts by weight in said blend of a blending component comprising a homopolymer or copolymer, or mixtures thereof, containing greater than about 50 wt.% of an α-olefin of 4-15 carbon atoms, for a total of components (1), (2) and (3) of 100 parts by weight.
Claim 2
Dependent Claim
142 words
A composite structure comprising: (a) a substrate, and adhered thereto (b) an adhesive blend consisting essentially of: (1) about 0.1 to less than about 40 parts by weight in said blend of a graft copolymer of about 70-99.95 wt.% of a polyethylene backbone grafted with about 30-0.05 wt.% of at least one grafting monomer comprising at least one polymerizable ethylenically unsaturated carboxylic acid or carboxylic acid derivative for a total of 100%, and (2) about 0.1-99 parts by weight in said blend of LDPE, or ethylene-unsaturated ester copolymers, or LLDPE or mixtures thereof, and (3) about 0.1-60 parts by weight in said blend of a blending component comprising a homopolymer or copolymer, or mixtures thereof, containing greater than about 50 wt.% of an α-olefin of 4-15 carbon atoms, for a total of components (1), (2) and (3) of 100 parts by weight.
Claim 3
Dependent Claim
21 words
The composite structure of claim 1 wherein said substrate comprises polyolefins, polar polymers, solid metals, glass, paper, wood, leather or cellophane.
Claim 4
Dependent Claim
11 words
The composite structure of claim 1 wherein said substrate comprises nylon.
Claim 5
Dependent Claim
11 words
The composite structure of claim 1 wherein said substrate comprises aluminum.
Claim 6
Dependent Claim
29 words
The composite structure of claim 1 wherein said ethylene-unsaturated ester copolymer of (b)(2) comprises a copolymer of ethylene and vinyl acetate or ethylmethacrylate or ethyl-acrylate or methylacrylate or methylmethacrylate.
Claim 7
Dependent Claim
20 words
The composite structure of claim 1 wherein said LLDPE of (b)(2) comprises a copolymer of ethylene and an unsaturated hydrocarbon.
Claim 8
Dependent Claim
17 words
The composite structure of claim 6 wherein said hydrocarbon comprises propylene, butene-1, 4-methyl pentene-1, hexene-1 or octene-1.
Claim 9
Dependent Claim
23 words
The composite structure of claim 1 wherein said α-olefin of component (b)(3) comprises butene-1, 4-methyl pentene-1, hexene-1, octene-1, or pentene-1, or mixtures thereof.
Claim 10
Dependent Claim
68 words
The composite structure of claim 1 wherein said grafting monomer of (b)(1) comprises at least one of acrylic acid, methacrylic acid, maleic acid, fumaric acid, itaconic acid, citraconic acid, mesaconic acid, maleic anhydride, 4-methyl cyclohex-4-ene-1,2-dicarboxylic acid anhydride, bicyclo(2.2.2)oct-5-ene-2,3-dicarboxylic acid anhydride, 1,2,3,4,5,8,9,10-octahydronaphthalene-2,3-dicarboxylic acid anhydride, 2-oxa-1,3-diketospiro(4.4)non-7-ene, bicyclo(2.2.1)hept-5-ene-2,3-dicarboxylic acid anhydride, maleopimaric acid, tetrahydrophthalic anhydride, norborn-5-ene-2,3-dicarboxylic acid anhydride, Nadic anhydride, methyl Nadic anhydride, Himic anhydride, methyl Himic anhydride, and x-methylbicyclo(2.2.1)hept-5-ene-2,3-dicarboxylic acid anhydride.
Claim 11
Dependent Claim
14 words
The composite structure of claim 1 wherein said substrate comprises an ethylene-vinyl alcohol copolymer.
Claim 12
Dependent Claim
15 words
The composite structure of claim 1 wherein said substrate comprises a polyester or a copolyester.
Claim 13
Dependent Claim
15 words
The composite structure of claim 1 wherein said substrate comprises an ethylene homopolymer or copolymer.
Claim 14
Dependent Claim
14 words
The composite structure of claim 1 wherein said substrate comprises a rubber-modified acrylonitrile-methacrylate copolymer.
Claim 15
Dependent Claim
22 words
The composite structure of claim 1 wherein said backbone of (b)(1) comprises polyethylene of a density within the range of 0.910-0.970 g/cc.
Claim 16
Dependent Claim
22 words
The composite structure of claim 1 wherein said (b)(2) comprises LDPE or LLDPE of a density within the range of 0.910-0.945 g/cc.
Claim 17
Dependent Claim
25 words
The composite structure of claim 1 wherein said backbone of (b)(1) comprises an ethylene polymer or a copolymer of ethylene with one or more alkenes.
Claim 18
Dependent Claim
21 words
The composite structure of claim 16 wherein said backbone of (b)(1) comprises a linear polyethylene of high, medium or low density.
Claim 19
Dependent Claim
23 words
The composite structure of claim 16 wherein said backbone of (b)(1) comprises a blend of two or more of said polymers or copolymers.
Claim 20
Dependent Claim
32 words
The composite structure of claim 1 wherein said poly-α-olefin of blending component (b)(3) comprises poly(butene-1) of melt index 0.5 to 50 g/10 min. and a density within the range of 0.88-0.93 g/cc.
Claim 21
Dependent Claim
152 words
A composite structure comprising: (a) two or more substrates with adjacent pairs adhered together by (b) an intervening layer of an adhesive blend consisting essentially of (1) about 0.1 or less than about 40 parts by weight in said blend of a graft copolymer of about 70-99.95 wt.% of a polyethylene backbone grafted with about 30-0.05 wt.% of at least one grafting monomer comprising at least one polymerizable ethylenically unsaturated carboxylic acid or carboxylic acid derivative for a total of 100%, and (2) about 0.1-99 parts by weight in said blend of LDPE, or an ethylene-unsaturated ester copolymer, or LLDPE or mixtures thereof, and (3) about 0.1-60 parts by weight in said blend of a blending component comprising a homopolymer or copolymer, or mixtures thereof, containing greater than about 50 wt.% of an α-olefin of 4-15 carbon atoms, for a total of components (1), (2) and (3) of 100 parts by weight.
Claim 22
Dependent Claim
152 words
A composite structure comprising: (a) two or more substrates with adjacent pairs adhered together by (b) an intervening layer of an adhesive blend consisting essentially of (1) about 0.1 or less than about 40 parts by weight in said blend of a graft copolymer of about 70-99.95 wt.% of a polyethylene backbone grafted with about 30-0.05 wt.% of at least one grafting monomer comprising at least one polymerizable ethylenically unsaturated carboxylic acid or carboxylic acid derivative for a total of 100%, and (2) about 0.1-99 parts by weight in said blend of LDPE, or an ethylene-unsaturated ester copolymer, or LLDPE or mixtures thereof, and (3) about 0.1-60 parts by weight in said blend of a blending component comprising a homopolymer or copolymer, or mixtures thereof, containing greater than about 50 wt.% of an α-olefin of 4-15 carbon atoms, for a total of components (1), (2) and (3) of 100 parts by weight.
Claim 23
Dependent Claim
15 words
The composite structure of claim 20 wherein said (a) comprises a polar substrate and nylon.
Claim 24
Dependent Claim
18 words
The composite structure of claim 20 wherein said (a) comprises a polar substrate and an ethylene-vinyl alcohol copolymer.
Claim 25
Dependent Claim
15 words
The composite structure of claim 20 wherein said (a) comprises a polar substrate and aluminum.
Claim 26
Dependent Claim
19 words
The composite structure of claim 20 wherein said (a) comprises a polar substrate and a polyester or a copolyester.
Claim 27
Dependent Claim
12 words
The composite structure of claim 20 wherein said (a) comprises polar substrates.
Claim 28
Dependent Claim
18 words
The composite structure of claim 20 wherein said (a) comprises ethylene homopolymers and copolymers and a polar substrate.
Claim 29
Dependent Claim
29 words
The composite structure of claim 20 wherein said ethylene-unsaturated ester copolymers of (b)(2) comprise a copolymer of ethylene and vinyl acetate or ethylmethacrylate or ethylacrylate or methylacrylate or methylmethacrylate.
Claim 30
Dependent Claim
20 words
The composite structure of claim 20 wherein said LLDPE of (b)(2) comprises a copolymer of ethylene and an unsaturated hydrocarbon.
Claim 31
Dependent Claim
17 words
The composite structure of claim 28 wherein said hydrocarbon comprises propylene, butene-1, 4-methyl pentene-1, hexene-1 or octene-1.
Claim 32
Dependent Claim
23 words
The composite structure of claim 20 wherein said α-olefin of component (b)(3) comprises butene-1, 4-methyl pentene-1, hexene-1, octene-1, or pentene-1, or mixtures thereof.
Claim 33
Dependent Claim
67 words
The composite structure of claim 20 wherein said grafting monomer comprises at least one of acrylic acid, methacrylic acid, maleic acid, fumaric acid, itaconic acid, citraconic acid, mesaconic acid, maleic anhydride, 4-methyl cyclohex-4-ene-1,2-dicarboxylic acid anhydride, bicyclo(2.2.2)oct-5-ene-2,3-dicarboxylic acid anhydride, 1,2,3,4,5,8,9,10-octahydronaphthalene-2,3-dicarboxylic acid anhydride, 2-oxa-1,3-diketospiro(4.4)non-7-ene, bicyclo(2.2.1)hept-5-ene-2,3-dicarboxylic acid anhydride, maleopimaric acid, tetrahydrophthalic anhydride, norborn-5-ene-2,3-dicarboxylic acid anhydride, Nadic anhydride, methyl Nadic anhydride, Himic anhydride, methyl Himic anhydride, and x-methyl bicyclo(2.2.1)hept-5-ene-2,3-dicarboxylic acid anhydride.
Claim 34
Dependent Claim
11 words
The composite structure of claim 20 wherein said structure comprises PP/adhesive/nylon.
Claim 35
Dependent Claim
11 words
The composite structure of claim 20 wherein said structure comprises PE/adhesive/nylon.
Claim 36
Dependent Claim
11 words
The composite structure of claim 20 wherein said structure comprises EVA/adhesive/nylon.
Claim 37
Dependent Claim
13 words
The composite structure of claim 20 wherein said structure comprises polyolefin/adhesive/vinyl alcohol polymer.
Claim 38
Dependent Claim
11 words
The composite structure of claim 20 wherein said structure comprises EVA/adhesive/EVOH.
Claim 39
Dependent Claim
11 words
The composite structure of claim 20 wherein said structure comprises PE/adhesive/polyester.
Claim 40
Dependent Claim
11 words
The composite structure of claim 20 wherein said structure comprises PE/adhesive/aluminum.
Claim 41
Dependent Claim
11 words
The composite structure of claim 20 wherein said structure comprises EVA/adhesive/aluminum.
Claim 42
Dependent Claim
11 words
The composite structure of claim 20 wherein said structure comprises PE/adhesive/steel.
Claim 43
Dependent Claim
11 words
The composite structure of claim 20 wherein said structure comprises PE/adhesive/copper.
Claim 44
Dependent Claim
11 words
The composite structure of claim 20 wherein said structure comprises EVA/adhesive/glass.
Claim 45
Dependent Claim
11 words
The composite structure of claim 20 wherein said structure comprises PE/adhesive/wood.
Claim 46
Dependent Claim
11 words
The composite structure of claim 20 wherein said structure comprises PE/adhesive/polyurethane.
Claim 47
Dependent Claim
11 words
The composite structure of claim 20 wherein said structure comprises PP/adhesive/polyester.
Claim 48
Dependent Claim
11 words
The composite structure of claim 20 wherein said structure comprises PP/adhesive/nylon/adhesive/EVA.
Claim 49
Dependent Claim
11 words
The composite structure of claim 20 wherein said structure comprises PE/adhesive/EVOH/adhesive/PE.
Claim 50
Dependent Claim
11 words
The composite structure of claim 20 wherein said structure comprises PE/adhesive/nylon/adhesive/EVA.
Claim 51
Dependent Claim
11 words
The composite structure of claim 20 wherein said structure comprises PE/adhesive/aluminum/adhesive/EVA.
Claim 52
Dependent Claim
11 words
The composite structure of claim 20 wherein said structure comprises PE/adhesive/EVOH.
Claim 53
Dependent Claim
11 words
The composite structure of claim 20 wherein said structure comprises PP/adhesive/EVOH.
Claim 54
Dependent Claim
22 words
The composite structure of claim 20 wherein said backbone of (b)(1) comprises polyethylene of a density within the range of 0.910-0.970 g/cc.
Claim 55
Dependent Claim
22 words
The composite structure of claim 20 wherein said (b)(2) comprises LDPE or LLDPE of a density within the range of 0.910-0.945 g/cc.
Claim 56
Dependent Claim
23 words
The composite structure of claim 20 wherein said backbone of (b)(1) comprises ethylene polymers or copolymers of ethylene with one or more alkenes.
Claim 57
Dependent Claim
21 words
The composite structure of claim 54 wherein said backbone of (b)(1) comprises a linear polyethylene of high, medium or low density.
Claim 58
Dependent Claim
22 words
The composite structure of claim 54 wherein said backbone of (b)(1) comprises blends of two or more of said polymers or copolymers.
Claim 59
Dependent Claim
32 words
The composite structure of claim 20 wherein said poly-α-olefin of blending component (b)(3) comprises poly(butene-1) of melt index 0.5 to 50 g/10 min. and a density within the range of 0.88-0.93 g/cc.
Claim 60
Dependent Claim
46 words
The composite structure of claim 1 wherein said components are adhered together by a method selected from the group consisting of blown film coextrusion, cast film coextrusion, blow molding coextrusion, lamination, extrusion or coextrusion coating, powder coating, rotomolding, profile coextrusion or wire coating extrusion or coextrusion.
Claim 61
Dependent Claim
46 words
The composite structure of claim 20 wherein said components are adhered together by a method selected from the group consisting of blown film coextrusion, cast film coextrusion, blow molding coextrusion, lamination, extrusion or coextrusion coating, powder coating, rotomolding, profile coextrusion or wire coating extrusion or coextrusion.
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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) | 1988-08-26 | 1989-02-25 | 1989-08-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-08-26 | 1993-02-25 | 1993-08-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-08-26 | 1997-02-25 | 1997-08-27 | $7700.00 | Window Closed / Lapsed |