US5006593A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Catenated polymer systems
Assignee: EIDP Inc
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Filing: 1988-06-16
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Granted: 1991-04-09
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Expires: 2008-06-16
Abstract
Abstract Dispersions of polymer systems comprising two normally incompatible polymer networks, one of which is held together by physical interactions and the other by chemical cross-links, the networks being catenated, are useful for making coating compositions, films and molded articles.
Inventors
- 👤 Donald E. Brasure
- 👤 Eugene G. Sommerfeld
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 20:43
CPC Classifications
C; C08; C08L; C08L27/00; C08L27/02; C08L27/12; C08L27/14; C08F; C08F259/00; C08F259/08; C08L101/00
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
65 words
A dispersion consisting essentially of a continuous phase of a compatible organic liquid carrier and a dispersed phase of a system of two or more normally incompatible polymers, the system comprising (a) networks of polymer chains, segments of which are held together by physical interactions, and (b) networks of chains of one or more chemically cross-linked polymers, the networks of (a) and (b) being catenated.
Claim 2
Dependent Claim
65 words
A dispersion consisting essentially of a continuous phase of a compatible organic liquid carrier and a dispersed phase of a system of two or more normally incompatible polymers, the system comprising (a) networks of polymer chains, segments of which are held together by physical interactions, and (b) networks of chains of one or more chemically cross-linked polymers, the networks of (a) and (b) being catenated.
Claim 3
Dependent Claim
15 words
The dispersion of claim 1 in which the polymer chains in (a) have 20-80% crystallinity.
Claim 4
Dependent Claim
86 words
The dispersion of claim 1 in which (a) is PVF, PVDF, PTFE , a TFE/HFP copolymer, a TFE/perfluoropropyl vinyl ether copolymer, poly(chlorotrifluoroethylene), a TFE/ethylene copolymer, PVC, PVDC, a polyamide, a polyester, a polyolefin or a polyacetal, and (b) is an acrylate, a methacrylate, an epoxy, a urethane polymer, a polyester, a vinyl halide polymer, a vinylidene halide polymer, a vinyl ester polymer, a vinyl alcohol polymer, a polyamide, a polyimide, a silicone polymer, a polycarbonate, a polyether, a polyolefin, a polyarylene sulfide or a polyarylene sulfone.
Claim 5
Dependent Claim
19 words
The dispersion of claim 3 in which polymer (a) is PVF and polymer (b) is an acrylate or methacrylate.
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) | 1994-04-08 | 1994-10-08 | 1995-04-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-04-08 | 1998-10-08 | 1999-04-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-04-08 | 2002-10-08 | 2003-04-09 | $7700.00 | Window Closed / Lapsed |