US3615792A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the preparation of emulsion coatings
Assignee: EIDP Inc
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Filing: 1967-06-13
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Granted: 1971-10-26
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Expires: 1987-06-13
Abstract
Abstract A method for making waterborne coating compositions containing both cellulose derivatives and resin additives comprising the preparation of a cellulose derivative emulsion and a resin emulsion, and then combining them.
Inventors
- 👤 Frederick James Keene
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 05:03
CPC Classifications
C; C09; C09D; C09D101/00; C09D101/08; C09D101/16; C09D101/18
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
41 words
A process of claim 1 wherein said nitrocellulose emulsion comprises about from 3-40% nitrocellulose, about from 7-50% water, and about from 0.1-5.0% emulsifier, and said resin emulsion comprises about from 25-65% resins, about from 0.1-5% emulsifier, and about from 35-75% water.
Claim 2
Dependent Claim
22 words
A process of claim 1 wherein said plasticizer and coalescing agent together comprise about from 1 to 40% of said nitrocellulose emulsion.
Claim 3
Dependent Claim
24 words
A process of claim 3 wherein the particles of said nitrocellulose emulsion have a number average particle diameter of about 0.1 to 0.8 micron.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-10-25 | 1975-04-26 | 1975-10-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-10-25 | 1979-04-26 | 1979-10-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-10-25 | 1983-04-26 | 1983-10-26 | $7700.00 | Window Closed / Lapsed |