US3095405A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polymerization of vinyl acetate in the presence of a ceric salt
Assignee: Kurashiki Rayon Co Ltd
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Filing: 1960-03-18
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Granted: 1963-06-25
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Expires: 1980-03-18
Abstract
No abstract record available.
Inventors
- 👤 Matsumoto Masakazu
- 👤 Ukida Junji
- 👤 Takayama Gozo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 08:49
CPC Classifications
C; C08; C08F; C08F18/00; C08F18/02; C08F18/04; C08J; C08J5/00; C08J5/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
63 words
A METHOD OF PRODUCING POLYVINYL ACETATE WHICH COMPRISES ADDING AT LEAST ONE COMPOUND SELECTED FROM THE GROUP CONSISTING OF LOWER ALKYL ALCOHOLS AND LOWER SATURATED ALIPHATIC MONOMER CARBOXYLIC ACIDS TO A SOLUTION OF A CERIC SALT IN WATER, THE RESULTING SOLUTION CONTAINING AT LEAST 10% WATER, ADDING VINLYN ACETATE IN THE TO SAID SOLUTION, AND POLYMERIZING SAID VINYL ACETATE IN THE RESULTING SOLUTION.
Claim 2
Independent Claim
63 words
A METHOD OF PRODUCING POLYVINYL ACETATE WHICH COMPRISES ADDING AT LEAST ONE COMPOUND SELECTED FROM THE GROUP CONSISTING OF LOWER ALKYL ALCOHOLS AND LOWER SATURATED ALIPHATIC MONOMER CARBOXYLIC ACIDS TO A SOLUTION OF A CERIC SALT IN WATER, THE RESULTING SOLUTION CONTAINING AT LEAST 10% WATER, ADDING VINLYN ACETATE IN THE TO SAID SOLUTION, AND POLYMERIZING SAID VINYL ACETATE IN THE RESULTING SOLUTION.
References Cited (Backward Citations)
US2610360A
Cited
US2922768A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-06-24 | 1966-12-24 | 1967-06-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-06-24 | 1970-12-24 | 1971-06-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-06-24 | 1974-12-24 | 1975-06-25 | $7700.00 | Window Closed / Lapsed |