Patent US2549940A successfully refreshed from Google Patents.
US2549940A
Expired / Lapsed
US
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Titanation of polyvinyl resins
Assignee: EIDP Inc
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Filing: 1946-08-22
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Granted: 1951-04-24
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Expires: 1966-08-22
Abstract
No abstract record available.
Inventors
- 👤 Signaigo Frank Kerr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 05:43
CPC Classifications
C; C08; C08J; C08J7/00; C08J7/12; C08K; C08K3/00; C08K3/10; C08K3/11; C09; C09J; C09J131/00; C09J131/02; C09J131/04; C08J2357/00; C08L; C08L2666/00; C08L2666/28; C08L2666/34
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
66 words
A METHOD FOR PRODUCING AN IMPROVED HEATCONVERTIBLE VINYL POLYMER COMPOSITION WHICH COMPRSES MIXING A PARTIALLY, UP-TO-50%-HYDROLYZED POLYMERIC VINYL ESTER OF A MONOCARBOXYLIC ACID WITH AN AQUEOUS SOLUTION OF A REACTIVE, WATERSOLUBLE TITANIUM COMPOUND, THE TIO2 CONCENTRATION OF WHICH TITANIUM COMPOUND RANGES FROM ABOUT 7-15% BY WEIGHT, BASED ON THE WEIGHT OF THE ESTER, AND CURING AND SETTING THE RESULTING PRODUCT AT TEMPERATURES RANGING FROM 20-200* C.
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) | 1954-04-23 | 1954-10-23 | 1955-04-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-04-23 | 1958-10-23 | 1959-04-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-04-23 | 1962-10-23 | 1963-04-24 | $7700.00 | Window Closed / Lapsed |