US3287446A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Highly transparent composite film comprising differing vinylidene chloride copolymers
Assignee: FMC Corp
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Filing: 1963-04-17
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Granted: 1966-11-22
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Expires: 1983-04-17
Abstract
No abstract record available.
Inventors
- 👤 Walter T Koch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:28
CPC Classifications
C; C09; C09D; C09D127/00; C09D127/02; C09D127/04; C09D127/08; C08; C08J; C08J7/00; C08J7/04; C08J7/0427; C08J7/043; C08J7/046; C08J7/052; C08J2427/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
121 words
A METHOD OF PREPARING A COATING COMPOSITION FOR CLEAR ORANIC FILMS COMPRISING COPOLYMRERIZING FROM ABOUT 92 TO 99% BY WEIGHT OF VINYLIDENE CHLORIDE AND AT LEAST ONE OTHER MONOMER COPOLYMERIZALBE THEREWITH IN AN EMULSION POLYMERIZATION MIXTURE, AND INTRODUCING THE EMULSION POLYMERIZATION MIXTURE, AND INTRODUCING THE DRIED RESIDUE OF SAID EMULSION POLYMERIZATION COMPRISING SOLID RESIN PARTICLES HAVING A SIZE OF FROM 0.1 TO ABOUT 5 MICRONS INTO A COATING LACQUER WHICH CONTAINS AS THE FILM-FORMING INGREDIENT A COPOLYMER OF FROM ABOUT 75 TO LESS THAN ABOUT 92% BY WEIGHT OF VINYLIDENE CHLORIDE AND AT LEAST ONE OTHER MONOMER COPOLYMERIZABLE THEREWITH, SAIT RESIDUE INCORPORATED INTO SAID LACQUER IN AN AMOUNT OF ABOUT 0.2 TO 2% BASED ON THE WEIGHT OF THE COATING COMPOSITION.
Claim 2
Dependent Claim
14 words
THE METHOD OF CLAIM 5 WHEREIN THE MONOMER COPOLYMERIZABLE WITH VINYLIDENE CHLORIDE IS ACRYLONITRILE.
References Cited (Backward Citations)
US2909449A
Cited
US3144425A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-11-21 | 1970-05-23 | 1970-11-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-21 | 1974-05-23 | 1974-11-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-21 | 1978-05-23 | 1978-11-22 | $7700.00 | Window Closed / Lapsed |