US4975484A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Acrylic copolymer composition and adhesive coatings therefrom
Assignee: EIDP Inc
•
Filing: 1989-05-01
•
Granted: 1990-12-04
•
Expires: 2009-05-01
Abstract
Abstract An improved adhesive composition comprising a nonacidic aqueous latex copolymer of a lower acrylate, an acrylic nitrile and a glycidyl acrylate having a crosslinking agent dissolved in the aqueous phase.
Inventors
- 👤 Michael Fryd
- 👤 Walter E. Pye
- 👤 Richard D. Redfearn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 04:03
CPC Classifications
C; C08; C08F; C08F220/00; C08F220/02; C08F220/10; C08F220/12; C09; C09J; C09J133/00; C09J133/04; C09J133/06; C09J133/08; C09J133/18; C09J133/20; C09J7/00; C09J7/10; C09J2301/00; C09J2301/30; C09J2301/304; H; H05; H05K; H05K3/00; H05K3/38; H05K3/386
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
60 words
A latex copolymer prepared by free radical-initiated aqueous emulsion polymerization of a mixture of nonacidic monomers consisting essentially of 50-60 wt. % C 1-4 alkyl acrylate, 30-40 wt. % acrylonitrile, methacrylonitrile or mixtures thereof, and 5-12 wt. % glycidyl acrylate, glycidyl methacrylate or mixtures thereof, having a T g of 0°-55° C. and a weight average molecular weight of 150,000-450,000.
Claim 2
Dependent Claim
60 words
A latex copolymer prepared by free radical-initiated aqueous emulsion polymerization of a mixture of nonacidic monomers consisting essentially of 50-60 wt. % C 1-4 alkyl acrylate, 30-40 wt. % acrylonitrile, methacrylonitrile or mixtures thereof, and 5-12 wt. % glycidyl acrylate, glycidyl methacrylate or mixtures thereof, having a T g of 0°-55° C. and a weight average molecular weight of 150,000-450,000.
Claim 3
Dependent Claim
13 words
The polymer of claim 1 in which weight average molecular weight is 150,000-300,000.
Claim 4
Dependent Claim
12 words
The copolymer of claim 1 having a T g of 0°-40° C.
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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) | 1993-12-03 | 1994-06-04 | 1994-12-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-12-03 | 1998-06-04 | 1998-12-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-12-03 | 2002-06-04 | 2002-12-04 | $7700.00 | Window Closed / Lapsed |