US4409364A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adhesive blends and composite structures comprising acid or anhydride modified PE + hope + polypropylene
Assignee: Enron Chemical Co
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Filing: 1981-12-04
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Granted: 1983-10-11
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Expires: 2001-12-04
Abstract
Abstract Compositions of matter having properties that make them strong adhesives to various substrates and especially for extrusion adhesion to various polar substrates. These compositions comprise blends of a graft copolymer of a polyethylene backbone grafted with at least one grafting monomer comprising one or more polymerizable ethylenically unsaturated carboxylic acids or the anhydrides of such acids blended with a blending resin that is a mixture of one or more high density polyethylenes and one or more polypropylenes. The disclosure also includes composite structures and their method of making comprising one or more substrates and a blend of the above as the adhesive in contact with and united with the substrate or substrates.
Inventors
- 👤 Seymour Schmukler
- 👤 John Machonis, Jr.
- 👤 Mitsuzo Shida
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:29
CPC Classifications
B; B32; B32B; B32B7/00; B32B7/04; B32B7/12; B32B27/00; B32B27/04; B32B27/30; B32B27/306; B32B27/32; B32B27/322; C; C09; C09J; C09J123/00; C09J123/02; C09J123/04; C09J123/10; C09J7/00; C09J7/30; C09J7/35; C08; C08L; C08L2666/00; C08L2666/02
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
89 words
An adhesive blend consisting essentially of (a) about 0.1-40 parts by weight in said blend of a graft copolymer of about 70-99.999 wt.% of a polyethylene backbone grafted with about 30-0.001 wt.% of at least one grafting monomer comprising at least one polymerizable ethylenically unsaturated carboxylic acid or carboxylic acid anhydride for a total of 100% and (b) about 99.9-60 parts by weight of a blending resin mixture of about 25-90 wt.% of a high density polyethylene and about 75-10 wt.% of a polypropylene for a total of 100%.
Claim 2
Dependent Claim
89 words
An adhesive blend consisting essentially of (a) about 0.1-40 parts by weight in said blend of a graft copolymer of about 70-99.999 wt.% of a polyethylene backbone grafted with about 30-0.001 wt.% of at least one grafting monomer comprising at least one polymerizable ethylenically unsaturated carboxylic acid or carboxylic acid anhydride for a total of 100% and (b) about 99.9-60 parts by weight of a blending resin mixture of about 25-90 wt.% of a high density polyethylene and about 75-10 wt.% of a polypropylene for a total of 100%.
Claim 3
Dependent Claim
22 words
The blend of claim 1 wherein said polypropylene comprises propylene homopolymers and copolymers of propylene and one or more unsaturated aliphatic hydrocarbons.
Claim 4
Dependent Claim
17 words
The blend of claim 2 wherein said aliphatic hydrocarbons have up to and including eight carbon atoms.
Claim 5
Dependent Claim
15 words
The blend of claim 1 wherein said polypropylene comprises a copolymer of propylene and ethylene.
Claim 6
Dependent Claim
11 words
The blend of claim 2 wherein said aliphatic hydrocarbon comprises ethylene.
Claim 7
Dependent Claim
23 words
The blend of claim 1 wherein said high density polyethylene blending resin comprises ethylene homopolymers and copolymers of ethylene and an unsaturated hydrocarbon.
Claim 8
Dependent Claim
13 words
The blend of claim 6 wherein said hydrocarbon comprises an unsaturated aliphatic hydrocarbon.
Claim 9
Dependent Claim
16 words
The blend of claim 7 wherein said hydrocarbon has up to and including eight carbon atoms.
Claim 10
Dependent Claim
14 words
The blend of claim 7 wherein said hydrocarbon comprises propylene, butene-1, hexene-1 or octene-1.
Claim 11
Dependent Claim
61 words
The blend 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 anhydride and fumaric acid.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-10-10 | 1987-04-11 | 1987-10-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-10-10 | 1991-04-11 | 1991-10-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-10-10 | 1995-04-11 | 1995-10-11 | $7700.00 | Window Closed / Lapsed |