Patent US2904526A successfully refreshed from Google Patents.
US2904526A
Expired / Lapsed
US
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Coating compositions
Assignee: Goodrich Corp
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Filing: 1957-08-27
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Granted: 1959-09-15
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Expires: 1977-08-27
Abstract
No abstract record available.
Inventors
- 👤 Uelzmann Heinz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:38
CPC Classifications
C; C09; C09D; C09D133/00; C09D133/04; C09D133/06; C09D133/062; C09D133/064
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
125 words
A COATING COMPOSITION COMPRISING, DISPERSED IN WATER, AT LEAST 2% BY WEIGHT OF A ZINC-AMMONIA-POLYMER COMPLEX FORMED BY COMBINING (1) AQUEOUS AMMONIA, (2) A DIVALENT ZINC COMPOUND SOLUBLE IN THE FORMER AND SELECTED FROM THE CLASS CONSISTING OF ZINC OXIDE AND ZINE HYDROXIDE,AND (3) AN INTERPOLYMER OF A MONOMERIC MIXTURE COMPRISING FROM ABOUT 80 TO ABOUT 97% OF AN ALKYL ESTER OF ACRYLIC ACID IN WHICH EACH ALCOHOL RESIDUE CONTAINS FROM 1 TO 3 CARBON ATOMS AND FROM ABOUT 3 TO ABOUT 20% OF ACRYLIC ACID, SAID IN TERPOLYMER HAVING A MOLECULAR WEIGHT SUCH THAT THE VISCOSITY OF AN AQUEOUS AMMONIACAL SOLUTION CONTAINING 25% TOTAL POLYMER SOLIDS IS NOT MORE THAN ABOUT "Z-6," AS MEASURED BY MEANS OF THE GARDNER-HOLDT VISCOMETER TUBES AT ROOM TEMPERATURE.
Claim 2
Dependent Claim
125 words
A COATING COMPOSITION COMPRISING, DISPERSED IN WATER, AT LEAST 2% BY WEIGHT OF A ZINC-AMMONIA-POLYMER COMPLEX FORMED BY COMBINING (1) AQUEOUS AMMONIA, (2) A DIVALENT ZINC COMPOUND SOLUBLE IN THE FORMER AND SELECTED FROM THE CLASS CONSISTING OF ZINC OXIDE AND ZINE HYDROXIDE,AND (3) AN INTERPOLYMER OF A MONOMERIC MIXTURE COMPRISING FROM ABOUT 80 TO ABOUT 97% OF AN ALKYL ESTER OF ACRYLIC ACID IN WHICH EACH ALCOHOL RESIDUE CONTAINS FROM 1 TO 3 CARBON ATOMS AND FROM ABOUT 3 TO ABOUT 20% OF ACRYLIC ACID, SAID IN TERPOLYMER HAVING A MOLECULAR WEIGHT SUCH THAT THE VISCOSITY OF AN AQUEOUS AMMONIACAL SOLUTION CONTAINING 25% TOTAL POLYMER SOLIDS IS NOT MORE THAN ABOUT "Z-6," AS MEASURED BY MEANS OF THE GARDNER-HOLDT VISCOMETER TUBES AT ROOM TEMPERATURE.
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) | 1962-09-14 | 1963-03-16 | 1963-09-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-09-14 | 1967-03-16 | 1967-09-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-09-14 | 1971-03-16 | 1971-09-15 | $7700.00 | Window Closed / Lapsed |