Patent US3693163A successfully refreshed from Google Patents.
US2878196A
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Process for creaming perfluorohaloolefin polymers with alginate creaming agents and composition resulting therefrom
Assignee: 3M Co
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Filing: 1956-10-16
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Granted: 1959-03-17
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Expires: 1976-10-16
Abstract
No abstract record available.
Inventors
- 👤 Malcolm R Buffington
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:10
CPC Classifications
C; C08; C08L; C08L27/00; C08L27/02; C08L27/12; C09; C09D; C09D127/00; C09D127/02; C09D127/12; C08L5/00; C08L5/04; C08L93/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
61 words
THE PROCESS WHICH COMPRISES ADMIXING A LATEX OF A COPOLYMER OF CHLOROTRIFLUOROETHYLENE AND VINYLIDENE FLUORIDE CONTAINING LESS THAN 50 PERCENT SOLID POLYMER PARTICLES WITH BETWEEN ABOUT 0.001 AND ABOUT 5 PARTS BY WEIGHT OF AMMONIUM ALGINATE PER 100 PARTS OF POLYMER AT A TEMPERATURE BETWEEN ABOUT 0*C. AND ABOUT 100*C., TO PRODUCE A LATEX CONTAINING ABOUT 70 PERCENT SOLID POLYMER PARTICLES.
Claim 2
Dependent Claim
61 words
THE PROCESS WHICH COMPRISES ADMIXING A LATEX OF A COPOLYMER OF CHLOROTRIFLUOROETHYLENE AND VINYLIDENE FLUORIDE CONTAINING LESS THAN 50 PERCENT SOLID POLYMER PARTICLES WITH BETWEEN ABOUT 0.001 AND ABOUT 5 PARTS BY WEIGHT OF AMMONIUM ALGINATE PER 100 PARTS OF POLYMER AT A TEMPERATURE BETWEEN ABOUT 0*C. AND ABOUT 100*C., TO PRODUCE A LATEX CONTAINING ABOUT 70 PERCENT SOLID POLYMER PARTICLES.
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) | 1962-03-16 | 1962-09-15 | 1963-03-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-03-16 | 1966-09-15 | 1967-03-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-03-16 | 1970-09-15 | 1971-03-17 | $7700.00 | Window Closed / Lapsed |