US3976724A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Blends of acid-containing copolymers and copolymers of acrylonitrile and a conjugated diolefin
Assignee: Dow Chemical Co
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Filing: 1975-04-28
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Granted: 1976-08-24
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Expires: 1995-04-28
Abstract
Abstract Compositions having improved adhesive characteristics comprise an intimate mixture of a copolymer of ethylene and an α,β-ethylenically unsaturated carboxylic acid such as acrylic acid and a copolymer of acrylonitrile and a conjugated diolefin such as 1,3-butadiene. Laminates of the adhesive composition and aluminum exhibit higher bond strengths than the bond strengths of the adhesive composition to other metals. The adhesive compositions have widespread utility and are particularly suitable as bonding agents in the wire and cable field.
Inventors
- 👤 Harold G. Frank
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 09:17
CPC Classifications
C; C09; C09J; C09J123/00; C09J123/02; C09J123/04; C09J123/08; C09J7/00; C09J7/20; C09J7/22; C09J7/30; C09J7/38; C08; C08L; C08L2666/00; C08L2666/02; C08L2666/04; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24942; Y10T428/2495; Y10T428/24959; Y10T428/24967; Y10T428/26; Y10T428/266; Y10T428/269; Y10T428/28; Y10T428/2804; Y10T428/2852; Y10T428/2878; Y10T428/2887; Y10T428/2891; Y10T428/31504; Y10T428/31678; Y10T428/31692
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
139 words
A composition having improved adhesive characteristics comprising an intimate mixture of: a. between about 80 and about 98 weight percent acid-containing copolymer of ethylene and an α,β-ethylenically unsaturated carboxylic acid having between 3 and 8 carbon atoms per molecule, said acid-containing copolymer having a melt index between about 0.5 and about 100 and containing between about 1 and about 20 weight percent of said α,β-ethylenically unsaturated carboxylic acid, and b. between about 2 and about 20 weight percent copolymer of acrylonitrile and conjugated diolefin having between 4 and 8 carbon atoms per molecule, said copolymer of acrylonitrile and conjugated diolefin having a relatively low molecular weight characterized in that said copolymer will flow at ordinary room temperature and containing between about 15 and about 60 weight percent acrylonitrile and between about 40 and about 85 weight percent conjugated diolefin.
Claim 2
Dependent Claim
139 words
A composition having improved adhesive characteristics comprising an intimate mixture of: a. between about 80 and about 98 weight percent acid-containing copolymer of ethylene and an α,β-ethylenically unsaturated carboxylic acid having between 3 and 8 carbon atoms per molecule, said acid-containing copolymer having a melt index between about 0.5 and about 100 and containing between about 1 and about 20 weight percent of said α,β-ethylenically unsaturated carboxylic acid, and b. between about 2 and about 20 weight percent copolymer of acrylonitrile and conjugated diolefin having between 4 and 8 carbon atoms per molecule, said copolymer of acrylonitrile and conjugated diolefin having a relatively low molecular weight characterized in that said copolymer will flow at ordinary room temperature and containing between about 15 and about 60 weight percent acrylonitrile and between about 40 and about 85 weight percent conjugated diolefin.
Claim 3
Dependent Claim
15 words
A composition according to claim 1 wherein said α,β-ethylenically unsaturated carboxylic acid is acrylic acid.
Claim 4
Dependent Claim
12 words
A composition according to claim 2 wherein said conjugated diolefin is 1,3-butadiene.
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) | 1979-08-24 | 1980-02-23 | 1980-08-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-08-24 | 1984-02-23 | 1984-08-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-08-24 | 1988-02-23 | 1988-08-24 | $7700.00 | Window Closed / Lapsed |