US4481262A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composite structures
Assignee: Enron Chemical Co
•
Filing: 1984-02-01
•
Granted: 1984-11-06
•
Expires: 2004-02-01
Abstract
Abstract Composite structures comprising one or more substrates and an adhesive blend adhered thereto. The blend is strongly adhesive to various substrates and especially to various polar substrates. The blend comprises a blend of a graft copolymer of a linear low density polyethylene backbone grafted with at least one grafting monomer which is one or more polymerizable ethylenically unsaturated carboxylic acids or anhydrides thereof, blended with a polyolefin blending resin. The disclosure also includes methods of adhering the blend to one or more substrates.
Inventors
- 👤 Mitsuzo Shida
- 👤 Robert Zeitlin
- 👤 John Machonis, Jr.
- 👤 Ashok M. Adur
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 04:25
CPC Classifications
C; C09; C09J; C09J123/00; C09J123/02; B; B32; B32B; B32B15/00; B32B15/04; B32B15/08; B32B15/18; B32B15/20; C09J151/00; C09J151/06; C08; C08L; C08L2666/00; C08L2666/02; C08L2666/04; C08L2666/24; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31551; Y10T428/31645; Y10T428/31649; Y10T428/31678; Y10T428/31692; Y10T428/31696; Y10T428/31699; Y10T428/31725; Y10T428/31739; Y10T428/31743; Y10T428/31746; Y10T428/31786; Y10T428/31797; Y10T428/31855; Y10T428/3188; Y10T428/31884; Y10T428/31888; Y10T428/31895; Y10T428/31899; Y10T428/31902; Y10T428/31906; Y10T428/31909; Y10T428/31913; Y10T428/31917; Y10T428/31924; Y10T428/31928; Y10T428/31935
Claims Analysis
Total Claims: 57
Claim 1
Independent Claim
141 words
A composite structure comprising: (a) a substrate, and adhered thereto (b) an adhesive blend comprising: (1) about 0.1-95 parts by weight in said blend of a graft copolymer of about 70-99.95 wt. % of an LLDPE 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 anhydride or about 50-99.90 wt. % of LLDPE backbone cografted with about 0.05-25 wt. % of said grafting monomer and about 0.05-25 wt. % of an unsaturated ester, said LLDPE backbone having a density of about 0.91-0.939 g/cc, for a total of 100% and (2) about 99.9-5 parts by weight of a blending resin selected from the group consisting of homopolymers of ethylene, α-olefin copolymers of ethylene, copolymers of ethylene and ethylenically unsaturated esters or their derivatives, and blends thereof.
Claim 2
Dependent Claim
141 words
A composite structure comprising: (a) a substrate, and adhered thereto (b) an adhesive blend comprising: (1) about 0.1-95 parts by weight in said blend of a graft copolymer of about 70-99.95 wt. % of an LLDPE 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 anhydride or about 50-99.90 wt. % of LLDPE backbone cografted with about 0.05-25 wt. % of said grafting monomer and about 0.05-25 wt. % of an unsaturated ester, said LLDPE backbone having a density of about 0.91-0.939 g/cc, for a total of 100% and (2) about 99.9-5 parts by weight of a blending resin selected from the group consisting of homopolymers of ethylene, α-olefin copolymers of ethylene, copolymers of ethylene and ethylenically unsaturated esters or their derivatives, and blends thereof.
Claim 3
Dependent Claim
19 words
The composite structure of claim 1 wherein said substrate comprises polar polymers, metals, glass, polyolefins, paper, wood 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
11 words
The composite structure of claim 1 wherein said substrate comprises EVOH.
Claim 7
Dependent Claim
11 words
The composite structure of claim 1 wherein said substrate comprises polyester.
Claim 8
Dependent Claim
11 words
The composite structure of claim 1 wherein said substrate comprises steel.
Claim 9
Dependent Claim
11 words
The composite structure of claim 1 wherein said substrate comprises copper.
Claim 10
Dependent Claim
11 words
The composite structure of claim 1 wherein said substrate comprises polyethylene.
Claim 11
Dependent Claim
11 words
The composite structure of claim 1 wherein said substrate comprises HDPE.
Claim 12
Dependent Claim
11 words
The composite structure of claim 1 wherein said substrate comprises LLDPE.
Claim 13
Dependent Claim
11 words
The composite structure of claim 1 wherein said substrate comprises LDPE.
Claim 14
Dependent Claim
11 words
The composite structure of claim 1 wherein said substrate comprises EVA.
Claim 15
Dependent Claim
11 words
The composite structure of claim 1 wherein said substrate comprises PP.
Claim 16
Dependent Claim
40 words
The composite structure of claim 1 wherein said components are adhered together by methods including 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 17
Dependent Claim
22 words
The composite structure of claim 1 wherein said blending resin comprises ethylene vinyl acetate copolymers, ethylene-methyl acrylate copolymers, or ethylene-ethyl acrylate copolymers.
Claim 18
Dependent Claim
44 words
The composite structure of claim 1 wherein said unsaturated ester of (1) includes dialkyl maleates, dialkyl fumarates, dialkyl itaconates, dialkyl mesaconates, dialkyl citraconates, alkyl acrylates, alkyl crotonates, alkyl tiglates and alkyl methacrylates where alkyl represents aliphatic, acryl-aliphatic and cyclo-aliphatic groups containing 1-12 carbon atoms.
Claim 19
Dependent Claim
62 words
The composite structure of claim 1 wherein said grafting monomer comprises at least one of acrylic acid, methacrylic acid, maleic 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, methyl Nadic anhydride, Himic anhydride, methyl Himic anhydride, x-methyl bicyclo(2.2.1)hept-5-ene-2,3-dicarboxylic acid anhyride and fumaric acid.
Claim 20
Dependent Claim
44 words
The method of making the composite structure of claim 1 wherein said components are adhered together by methods including 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 21
Dependent Claim
11 words
The composite structure of claim 1 wherein said substrate comprises poly(acrylonitrile-co-butadiene).
Claim 22
Dependent Claim
150 words
A composite structure comprising: (a) two or more substrates with adjacent pairs adhered together by (b) an intervening layer of an adhesive blend comprising: (1) about 0.1-95 parts by weight in said blend of a graft copolymer of about 70-99.95 wt. % of an LLDPE 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 anhydride or about 50-99.90 wt. % of LLDPE backbone cografted with about 0.05-25 wt. % of said grafting monomer and about 0.05-25 wt. % of an unsaturated ester, said LLDPE backbone having a density of about 0.91-0.939 g/cc, for a total of 100% and (2) about 99.9-5 parts by weight of a blending resin selected from the group consisting of homopolymers of ethylene, α-olefin copolymers of ethylene, copolymers of ethylene and ethylenically unsturated esters or their derivatives, and blends thereof.
Claim 23
Dependent Claim
150 words
A composite structure comprising: (a) two or more substrates with adjacent pairs adhered together by (b) an intervening layer of an adhesive blend comprising: (1) about 0.1-95 parts by weight in said blend of a graft copolymer of about 70-99.95 wt. % of an LLDPE 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 anhydride or about 50-99.90 wt. % of LLDPE backbone cografted with about 0.05-25 wt. % of said grafting monomer and about 0.05-25 wt. % of an unsaturated ester, said LLDPE backbone having a density of about 0.91-0.939 g/cc, for a total of 100% and (2) about 99.9-5 parts by weight of a blending resin selected from the group consisting of homopolymers of ethylene, α-olefin copolymers of ethylene, copolymers of ethylene and ethylenically unsturated esters or their derivatives, and blends thereof.
Claim 24
Dependent Claim
19 words
The composite structure of claim 21 wherein said (a) comprises an ethylene homopolymer or copolymer and a polar substrate.
Claim 25
Dependent Claim
17 words
The composite structure of claim 21 wherein said (a) comprises an ethylene homopolymer or copolymer and nylon.
Claim 26
Dependent Claim
19 words
The composite structure of claim 21 wherein said (a) comprises an ethylene homopolymer or copolymer and ethylene-vinyl alcohol copolymer.
Claim 27
Dependent Claim
13 words
The composite structure of claim 21 wherein said (a) comprises nylon and aluminum.
Claim 28
Dependent Claim
12 words
The composite structure of claim 21 wherein said (a) comprises polar substrates.
Claim 29
Dependent Claim
11 words
The composite structure of claim 21 wherein said (a) comprises metals.
Claim 30
Dependent Claim
44 words
The composite structure of claim 21 wherein said unsaturated ester of (1) includes dialkyl maleates, dialkyl fumarates, dialkyl itaconates, dialkyl mesaconates, dialkyl citraconates, alkyl acrylates, alkyl crotonates, alkyl tiglates and alkyl methacrylates where alkyl represents aliphatic, aryl-aliphatic and cycloaliphatic groups containing 1-12 carbon atoms.
Claim 31
Dependent Claim
62 words
The composite structure of claim 21 wherein said grafting monomer comprises at least one of acrylic acid, methacrylic acid, maleic 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, methyl Nadic anhydride, Himic anhydride, methyl Himic anhydride, x-methyl bicyclo(2.2.1)hept-5-ene-2,3-dicarboxylic acid anhydride and fumaric acid.
Claim 32
Dependent Claim
11 words
The composite structure of claim 21 wherein said structure comprises PP/adhesive/nylon.
Claim 33
Dependent Claim
11 words
The composite structure of claim 21 wherein said structure comprises PE/adhesive/nylon.
Claim 34
Dependent Claim
11 words
The composite structure of claim 21 wherein said structure comprises EVA/adhesive/PVA.
Claim 35
Dependent Claim
11 words
The composite structure of claim 21 wherein said structure comprises steel/adhesive/aluminum.
Claim 36
Dependent Claim
11 words
The composite structure of claim 21 wherein said structure comprises PE/adhesive/PVA.
Claim 37
Dependent Claim
12 words
The composite structure of claim 21 wherein said structure comprises EVA/adhesive EVOH.
Claim 38
Dependent Claim
11 words
The composite structure of claim 21 wherein said structure comprises PP/adhesive/aluminum.
Claim 39
Dependent Claim
11 words
The composite structure of claim 21 wherein said structure comprises PE/adhesive/aluminum.
Claim 40
Dependent Claim
11 words
The composite structure of claim 21 wherein said structure comprises EVA/adhesive/aluminum.
Claim 41
Dependent Claim
11 words
The composite structure of claim 21 wherein said structure comprises PE/adhesive/steel.
Claim 42
Dependent Claim
11 words
The composite structure of claim 21 wherein said structure comprises PE/adhesive/copper.
Claim 43
Dependent Claim
11 words
The composite structure of claim 21 wherein said structure comprises EVA/adhesive/glass.
Claim 44
Dependent Claim
11 words
The composite structure of claim 21 wherein said structure comprises copper/adhesive/aluminum.
Claim 45
Dependent Claim
11 words
The composite structure of claim 21 wherein said structure comprises PE/adhesive/wood.
Claim 46
Dependent Claim
11 words
The composite structure of claim 21 wherein said structure comprises PE/adhesive/polyurethane.
Claim 47
Dependent Claim
11 words
The composite structure of claim 21 wherein said structure comprises PE/adhesive/nylon/adhesive/EVA.
Claim 48
Dependent Claim
11 words
The composite structure of claim 21 wherein said structure comprises PE/adhesive/EVOH/adhesive/PE.
Claim 49
Dependent Claim
11 words
The composite structure of claim 21 wherein said structure comprises PE/adhesive/nylon/adhesive/PP.
Claim 50
Dependent Claim
11 words
The composite structure of claim 21 wherein said structure comprises PE/adhesive/aluminum/adhesive/EVA.
Claim 51
Dependent Claim
11 words
The composite structure of claim 21 wherein said structure comprises steel/adhesive/nylon.
Claim 52
Dependent Claim
11 words
The composite structure of claim 21 wherein said structure comprises PE/adhesive/polyester.
Claim 53
Dependent Claim
11 words
The composite structure of claim 21 wherein said structure comprises PE/adhesive/EVOH.
Claim 54
Dependent Claim
11 words
The composite structure of claim 21 wherein said structure comprises PP/adhesive/EVOH.
Claim 55
Dependent Claim
44 words
The method of making the composite structure of claim 21 wherein said components are adhered together by methods including 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 56
Dependent Claim
40 words
The composite structure of claim 21 wherein said components are adhered together by methods including 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 57
Dependent Claim
22 words
The composite structure of claim 21 wherein said blending resin comprises ethylene vinyl acetate copolymers, ethylene-methyl acrylate copolymers, or ethylene-ethyl acrylate copolymers.
References Cited (Backward Citations)
US3856899A
Cited
US3658948A
Cited
US3886227A
Cited
US3882194A
Cited
US4087587A
Cited
US4087588A
Cited
US4230830A
Cited
US4230830B1
Cited
US4419408A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-11-06 | 1988-05-07 | 1988-11-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-11-06 | 1992-05-07 | 1992-11-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-11-06 | 1996-05-07 | 1996-11-06 | $7700.00 | Window Closed / Lapsed |