Patent US4255533A successfully refreshed from Google Patents.
US4255533A
Expired / Lapsed
US
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Copper adhesive composition
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1978-09-28
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Granted: 1981-03-10
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Expires: 1998-09-28
Abstract
Abstract Specific thermoplastic compositions which are formulated to be exceptionally useful for adhesion to copper-containing metals are prepared from either glycidyl acrylate grafts of polypropylene based formulations with a minor elastomeric component or low density polyethylene based formulations grafted with acrylic acid and/or glycidyl acrylate and containing a minor elastomeric component.
Inventors
- 👤 Kenneth W. Bartz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 15:45
CPC Classifications
C; C09; C09J; C09J151/00; C09J151/06; C09J123/00; C09J123/02; C09J151/003; C08; C08L; C08L2666/00; C08L2666/02; C08L2666/24
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
51 words
A thermoplastic adhesive composition having outstanding adhesion to copper comprising a blend of (a) about 85 weight percent of low density polyethylene; and (b) about 15 weight percent of butyl rubber, wherein said blend has been grafted with from 0.02 to 20 weight percent of a monomer selected from acrylic acid.
Claim 2
Dependent Claim
51 words
A thermoplastic adhesive composition having outstanding adhesion to copper comprising a blend of (a) about 85 weight percent of low density polyethylene; and (b) about 15 weight percent of butyl rubber, wherein said blend has been grafted with from 0.02 to 20 weight percent of a monomer selected from acrylic acid.
References Cited (Backward Citations)
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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) | 1984-03-09 | 1984-09-08 | 1985-03-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-03-09 | 1988-09-08 | 1989-03-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-03-09 | 1992-09-08 | 1993-03-10 | $7700.00 | Window Closed / Lapsed |