US2892802A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Medium for emulsion polymerization of ethylenically unsaturated monomers and method therefor and composition therefrom
Assignee: Sherwin Williams Co
•
Filing: 1956-01-30
•
Granted: 1959-06-30
•
Expires: 1976-01-30
Abstract
No abstract record available.
Inventors
- 👤 Budewitz Eugene Paul
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:56
CPC Classifications
C; C08; C08F; C08F2/00; C08F2/12; C08F2/16; C08F2/18; C08F2/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
144 words
AN OIL-IN-WATER EMULSION THE DISPERSE PHASE OF WHICH COMPRISES A TERPOLYMER OF A MAJOR PROPORTION OF VINYL ACETATE AND A MINOR PROPORTION OF ONE EACH OF TWO OTHER ETHYLENICALLY UNSATURATED MONOMERS POLYMERIZABLE THEREWITH AND A CONTINOUS AQUEOUS PHASE, SAID CONTINUOUS AQUEOUS PHASE CONSISTING ESSENTIALLY OF FROM 1 TO 10% BY WEIGHT OF SAID AQUEOUS PHASE OF A WATER SOLUBLE NON-IONIC PROTECTIVE COLLOID SELECTED FROM THE GROUP CONSISTING OF POLYVINYL ALCOHOL OF AT LEAST 95% HYDROLIZED QUALITY, HYDROXYETHYL CELLULOSE AND MIXTURES THEREOF; A QUANTITY BUT NOT MORE THAN 10% BY WEIGHT OF THE AQUEOUD PHASE OF A WATER SOLUBLE, NON-IONIC EMULSIFYING AGENT CONTAINING A PLURALITY OF OXYETHYLENE GROUOS CHARACTERIZED BY A HN VALUE OF 65 NUT NOT GREATER THAN ABOUT 75 AND A QUANTITY BUT NOT MORE THAN 1% BY WEIGHT OF SAID AQUEOUS PHASE OF A SYMMETRICAL, ACETYLENIC, DITERTIARY DIALCOHOL-CONTAINING FROM 6-10 CARBON ATOMS.
Claim 2
Dependent Claim
144 words
AN OIL-IN-WATER EMULSION THE DISPERSE PHASE OF WHICH COMPRISES A TERPOLYMER OF A MAJOR PROPORTION OF VINYL ACETATE AND A MINOR PROPORTION OF ONE EACH OF TWO OTHER ETHYLENICALLY UNSATURATED MONOMERS POLYMERIZABLE THEREWITH AND A CONTINOUS AQUEOUS PHASE, SAID CONTINUOUS AQUEOUS PHASE CONSISTING ESSENTIALLY OF FROM 1 TO 10% BY WEIGHT OF SAID AQUEOUS PHASE OF A WATER SOLUBLE NON-IONIC PROTECTIVE COLLOID SELECTED FROM THE GROUP CONSISTING OF POLYVINYL ALCOHOL OF AT LEAST 95% HYDROLIZED QUALITY, HYDROXYETHYL CELLULOSE AND MIXTURES THEREOF; A QUANTITY BUT NOT MORE THAN 10% BY WEIGHT OF THE AQUEOUD PHASE OF A WATER SOLUBLE, NON-IONIC EMULSIFYING AGENT CONTAINING A PLURALITY OF OXYETHYLENE GROUOS CHARACTERIZED BY A HN VALUE OF 65 NUT NOT GREATER THAN ABOUT 75 AND A QUANTITY BUT NOT MORE THAN 1% BY WEIGHT OF SAID AQUEOUS PHASE OF A SYMMETRICAL, ACETYLENIC, DITERTIARY DIALCOHOL-CONTAINING FROM 6-10 CARBON ATOMS.
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) | 1962-06-29 | 1962-12-29 | 1963-06-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-06-29 | 1966-12-29 | 1967-06-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-06-29 | 1970-12-29 | 1971-06-30 | $7700.00 | Window Closed / Lapsed |