Patent US2914495A successfully refreshed from Google Patents.
US2914495A
Expired / Lapsed
US
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Water paint comprising pigment and aqueous emulsion of polyvinyl acetate and waxy maize starch
Assignee: Hexion Inc
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Filing: 1956-04-17
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Granted: 1959-11-24
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Expires: 1976-04-17
Abstract
No abstract record available.
Inventors
- 👤 Philip L Gordon
- 👤 Albert E Cohen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:10
CPC Classifications
C; C09; C09D; C09D131/00; C09D131/02; C09D131/04; C08; C08L; C08L3/00; C08L3/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
99 words
A WATER PAINT COMPRISING AN INTIMATE MIXTURE OF AN AQUEOUS EMULSION OF THE PRODUCT OF POLYMERIZING 100 PARTS DRY WEIGHT OF VINYL ACETATE IN CONTACT WITH (1) AN ACTIVATOR OF POLYMERIZATION OF VINYL ACETATE, (2) 2-10 PARTS OF PREGELATINIZED WAXY MAIZE STARCH IN SOLUTION IN WATER AT ALL TIMES DURING THE POLYMERIZATION, AND (3) 0.5-5 PARTS OF A SURFACTANT SELECTED FROM THE GROUP CONSISTING OF ANIONIC AND NONIONIC SURFACTANTS, THE SAID EMULSION SERVING AS THE VEHICLE FOR THE PAINT; AND 20-200 PARTS OF PAINT PIGMENT ADMIXED WITH THE SAID VEHICLE, THE VINYL ACETATE BEING IN SUBSTANTIALLY COMPLETELY POLYMERIZED CONDITION.
Claim 2
Dependent Claim
99 words
A WATER PAINT COMPRISING AN INTIMATE MIXTURE OF AN AQUEOUS EMULSION OF THE PRODUCT OF POLYMERIZING 100 PARTS DRY WEIGHT OF VINYL ACETATE IN CONTACT WITH (1) AN ACTIVATOR OF POLYMERIZATION OF VINYL ACETATE, (2) 2-10 PARTS OF PREGELATINIZED WAXY MAIZE STARCH IN SOLUTION IN WATER AT ALL TIMES DURING THE POLYMERIZATION, AND (3) 0.5-5 PARTS OF A SURFACTANT SELECTED FROM THE GROUP CONSISTING OF ANIONIC AND NONIONIC SURFACTANTS, THE SAID EMULSION SERVING AS THE VEHICLE FOR THE PAINT; AND 20-200 PARTS OF PAINT PIGMENT ADMIXED WITH THE SAID VEHICLE, THE VINYL ACETATE BEING IN SUBSTANTIALLY COMPLETELY POLYMERIZED CONDITION.
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) | 1962-11-23 | 1963-05-25 | 1963-11-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-11-23 | 1967-05-25 | 1967-11-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-11-23 | 1971-05-25 | 1971-11-24 | $7700.00 | Window Closed / Lapsed |