US3862074A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aqueous polymeric compositions of nonionic urethane polymer and acrylic polymer
Assignee: Environmental Enterprises Inc
•
Filing: 1971-11-30
•
Granted: 1975-01-21
•
Expires: 1991-11-30
Abstract
Abstract Coating and binder compositions which are aqueous dispersions of urethane and acrylic polymers and applications of such compositions.
Inventors
- 👤 Richard M Hickey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 05:22
CPC Classifications
C; C09; C09D; C09D133/00; C09D133/04; C09D133/14; C09D175/00; C09D175/04; C09D175/08; C08; C08L; C08L75/00; C08L75/04; C08L75/08
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
43 words
The composition of claim 1, wherein the urethane polymer is a polymer or a mixture of polymers in which the organic diamine is 2-methylpiperazine, the polyalkylene ether polyol is polyoxypropylene polyol and the organic polyisocyanate is toluene diisocyanate, and has the following properties:
Claim 2
Dependent Claim
21 words
A composition according to claim 1, further containing one or more pigments, whereby said composition will dry to a colored residue.
Claim 3
Dependent Claim
15 words
The composition of claim 1, wherein the acrylic is an emulsion having the following properties:
References Cited (Backward Citations)
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US3360494A
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US3646178A
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US3639157A
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US3684758A
Cited
US3684759A
Cited
US3705164A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-01-20 | 1978-07-22 | 1979-01-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-01-20 | 1982-07-22 | 1983-01-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-01-20 | 1986-07-22 | 1987-01-21 | $7700.00 | Window Closed / Lapsed |