US4280942A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aqueous acrylic contact adhesive
Assignee: Formica Corp
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Filing: 1980-07-09
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Granted: 1981-07-28
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Expires: 2000-07-09
Abstract
Abstract An adhesive composition comprising an aqueous emulsion of polyacrylates sufficiently stabilized in part with a vinyl alcohol polymer, a tackifying resin and a plasticizer is disclosed, which adhesive has utility as a low hazard contact cement for bonding on contact numerous materials to various substrates under a wide range of environmental work conditions.
Inventors
- 👤 Robert W. Green
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:34
CPC Classifications
C; C09; C09J; C09J133/00; C09J133/04; C09J133/06; C09J133/08; C08; C08L; C08L2666/00; C08L2666/02; C08L2666/28; C08L29/00; C08L29/02; C08L29/04; C08L61/00; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31855; Y10T428/3188; Y10T428/31895; Y10T428/31906
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
85 words
An adhesive composition comprising (A) 100 parts, by weight, of an acrylate polymer as contained in an aqueous emulsion containing from about 40-65% by weight of said acrylate polymer, (B) from about 0.5-5%, based on the total weight of said acrylate polymer emulsion, of a vinyl alcohol polymer, (C) from about 20-79 parts, by weight, per 100 parts of said acrylate polymer, of a tackifying resin and (D) from about 10-35 parts, by weight, per 100 parts of said acrylate polymer, of a resin plasticizer.
Claim 2
Dependent Claim
85 words
An adhesive composition comprising (A) 100 parts, by weight, of an acrylate polymer as contained in an aqueous emulsion containing from about 40-65% by weight of said acrylate polymer, (B) from about 0.5-5%, based on the total weight of said acrylate polymer emulsion, of a vinyl alcohol polymer, (C) from about 20-79 parts, by weight, per 100 parts of said acrylate polymer, of a tackifying resin and (D) from about 10-35 parts, by weight, per 100 parts of said acrylate polymer, of a resin plasticizer.
Claim 3
Dependent Claim
16 words
A composition according to claim 1 wherein said acrylate polymer contains from about 60-98% ethyl acrylate.
Claim 4
Dependent Claim
17 words
A composition according to claim 1 wherein said vinyl alcohol polymer is at least about 65% hydrolyzed.
Claim 5
Dependent Claim
15 words
A composition according to claim 1 wherein said tackifying resin is a hydroxyalkylated alkylphenolformaldehyde resin.
Claim 6
Dependent Claim
15 words
A composition according to claim 1 wherein said tackifying resin is a thermoplastic terpene-phenolic resin.
Claim 7
Dependent Claim
14 words
A composition according to claim 1 wherein said tackifying resin is a rosin ester.
Claim 8
Dependent Claim
17 words
A composition according to claim 1 wherein said resin plasticizer is a substituted phenol-ethylene oxide reaction product.
Claim 9
Dependent Claim
14 words
A composition according to claim 1 wherein said resin plasticizer is octyl phenoxy ethanol.
Claim 10
Dependent Claim
15 words
A composition according to claim 4 wherein said tackifying resin is a hydroxymethylated alkylphenolformaldehyde resin.
Claim 11
Dependent Claim
16 words
A composition according to claim 3 wherein said vinyl alcohol resin is from about 70-90% hydrolyzed.
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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) | 1984-07-27 | 1985-01-26 | 1985-07-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-07-27 | 1989-01-26 | 1989-07-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-07-27 | 1993-01-26 | 1993-07-28 | $7700.00 | Window Closed / Lapsed |