US3305606A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the production of graft copolymers of vinyl chloride onto a partially saponified ethylene-vinyl acetate copolymer
Assignee: Bayer AG
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Filing: 1965-09-21
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Granted: 1967-02-21
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Expires: 1985-09-21
Abstract
No abstract record available.
Inventors
- 👤 Hardt Dietrich
- 👤 Bartl Herbert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 14:37
CPC Classifications
C; C08; C08F; C08F255/00; C08F255/02; C08F255/026
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
48 words
A PROCESS FOR THE PRODUCTION OF GRAFT POLYMERS FROM AT LEAST ONE MONO-OLEFINICALLY UNSATURATED POLYMERIZABLE COMPOUND AND PARTIALLY SAPONIFIED ETHLENE-VINYL ACETATE COPOLYMERS IN AN AQUEOUS DISPERSION COMPRISING PARTIALLY SAPONIFYING THE COPOLYMER IN THE PRESENCE OF VINYL CHLORIDE, VINYLIDENE CHLORIDE OR MIXTURES THEREOF AND POLYMERIZING THE RESULTING SAPONIFICATION SOLUTION.
Claim 2
Dependent Claim
48 words
A PROCESS FOR THE PRODUCTION OF GRAFT POLYMERS FROM AT LEAST ONE MONO-OLEFINICALLY UNSATURATED POLYMERIZABLE COMPOUND AND PARTIALLY SAPONIFIED ETHLENE-VINYL ACETATE COPOLYMERS IN AN AQUEOUS DISPERSION COMPRISING PARTIALLY SAPONIFYING THE COPOLYMER IN THE PRESENCE OF VINYL CHLORIDE, VINYLIDENE CHLORIDE OR MIXTURES THEREOF AND POLYMERIZING THE RESULTING SAPONIFICATION SOLUTION.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-02-20 | 1970-08-22 | 1971-02-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-20 | 1974-08-22 | 1975-02-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-20 | 1978-08-22 | 1979-02-21 | $7700.00 | Window Closed / Lapsed |