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US4230830A
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Adhesive blends containing thermally grafted ethylene polymer
Assignee: EIDP Inc
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Filing: 1979-03-30
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Granted: 1980-10-28
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Expires: 1999-03-30
Abstract
Abstract Polymeric blends particularly useful as adhesives for nylon prepared from an ethylene polymer and a second polymer grafted with maleic anhydride.
Inventors
- 👤 Stephen R. Tanny
- 👤 Philip S. Blatz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 05:36
CPC Classifications
C; C09; C09J; C09J123/00; C09J123/02; C09J123/04; C08; C08L; C08L2666/00; C08L2666/02; C08L2666/04; C08L2666/24; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31725; Y10T428/31739; Y10T428/31743
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
156 words
A polymer blend consisting essentially of a. about from 80-99% by weight of a first olefinic polymer selected from (i) non-polar ethylene polymers and copolymers having a density of 0.930 to 0.965 g/cc and (ii) copolymers of ethylene having up to about 30 weight percent of at least one ethylenically unsaturated ester having from 4 to 12 carbon atoms; and b. about from 1-19% of a second olefinic polymer selected from the group consisting of (i) non-polar ethylene polymers and copolymers having a density of about from 0.945 to 0.965 g/cc and (ii) terpolymers of ethylene, at least one α-olefin having from 3-6 carbon atoms, and at least one nonconjugated diene; the second olefinic polymer being thermally grafted with unsaturated acid or anhydride to give a copolymer having about from 0.02 to 4.0 weight percent of grafted succinic groups, provided, however, that when the second olefinic polymer is (ii), then the first olefinic polymer is (ii).
Claim 2
Dependent Claim
156 words
A polymer blend consisting essentially of a. about from 80-99% by weight of a first olefinic polymer selected from (i) non-polar ethylene polymers and copolymers having a density of 0.930 to 0.965 g/cc and (ii) copolymers of ethylene having up to about 30 weight percent of at least one ethylenically unsaturated ester having from 4 to 12 carbon atoms; and b. about from 1-19% of a second olefinic polymer selected from the group consisting of (i) non-polar ethylene polymers and copolymers having a density of about from 0.945 to 0.965 g/cc and (ii) terpolymers of ethylene, at least one α-olefin having from 3-6 carbon atoms, and at least one nonconjugated diene; the second olefinic polymer being thermally grafted with unsaturated acid or anhydride to give a copolymer having about from 0.02 to 4.0 weight percent of grafted succinic groups, provided, however, that when the second olefinic polymer is (ii), then the first olefinic polymer is (ii).
Claim 3
Dependent Claim
16 words
A polymer blend of claim 1 wherein the first olefinic polymer is an ethylene/vinyl acetate copolymer.
Claim 4
Dependent Claim
19 words
A polymer blend of claim 2 wherein the second olefinic polymer is an ethylene/propylene/hexadiene terpolymer grafted with succinic groups.
Claim 5
Dependent Claim
19 words
A polymer blend of claim 2 wherein the second olefinic polymer is an ethylene polymer grafted with succinic groups.
Claim 6
Dependent Claim
16 words
A copolymer blend of claim 1 wherein the first olefinic polymer is an ethylene/methyl acrylate copolymer.
Claim 7
Dependent Claim
16 words
A copolymer blend of claim 1 wherein the first olefinic polymer is an ethylene/isobutyl acrylate 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) | 1983-10-28 | 1984-04-28 | 1984-10-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-10-28 | 1988-04-28 | 1988-10-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-10-28 | 1992-04-28 | 1992-10-28 | $7700.00 | Window Closed / Lapsed |