US2923646A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Release-coatings, film- and sheetcasting bases for substrates
Assignee: Rohm and Haas Co
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Filing: 1957-12-12
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Granted: 1960-02-02
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Expires: 1977-12-12
Abstract
No abstract record available.
Inventors
- 👤 Jr Arthur D Jordan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:53
CPC Classifications
C; C09; C09D; C09D157/00; C08; C08K; C08K3/00; C08K3/18; C08K3/20; C08K3/22; C08L; C08L33/00; C08L33/04; C08L33/06; C08L33/10; C08L33/12; C08L35/00; C08L57/00; Y; Y10; Y10T; Y10T428/00; Y10T428/28; Y10T428/2839; Y10T428/31504; Y10T428/31551; Y10T428/31645; Y10T428/31649; Y10T428/31652; Y10T428/31667; Y10T428/31678; Y10T428/31692; Y10T428/31699; Y10T428/31725; Y10T428/31739; Y10T428/31786; Y10T428/31797; Y10T428/31855; Y10T428/3188; Y10T428/31895; Y10T428/31906
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
192 words
AS AN ARTICLE OF MANUFACTURE, A SOLID SUBSTRATE CARRYING ON AT LEAST ONE SURFACE THEREOF, A COATING COMPRISING A MIXTURE OF (A) A WATER-INSOLUBLE LINEAR ADDITION POLYMER HAVING A T1 VALUE NOT OVER 30*C., (B) AN AMMONIUM SALT OF A COPOLYMER HAVING A MOLECULAR WEIGHT FROM ABOUT 500 TO 100,000 SELECTED FROM THE GROUP CONSISTING OF (1) COPOLYMERS OF 20 TO 30% BY WEIGHT OF METHACRYLIC ACID AND 70 TO 80% BY WEIGHT OF METHYL METHACRYLATE WHICH FORM AMMONIUM SALTS HAVING, AT A CONCENTRATION OF 22% IN WATER AT ROOM TEMPERATURE, A VISCOSITY BETWEEN 2 AND 30 POISES, (2) COPOLYMERS OF STYRENE AND MALEIC ANHYDRIDE IN APPROXIMATELY 1:1 MOLE RATIO, AND (3) COPOLYMERS IN APPROXIMATELY 1:1 MOLE RATIO OF MALEIC ANHYDRIDE WITH A COMPOUND SELECTED FROM THE GROUP CONSISTING OF BRANCHED-CHAIN OLEFINES HAVING 4 TO 10 CARBON ATOMS AND UNSATURATED TERPENES HAVING 4 TO 10 CARBON ATOMS, AND (C) ZINC OXIDE, THE PROPORTIONS BETWEEN (A) AND (B) BEING 65 TO 90 PARTS BY WEIGHT OF (A) TO 10 TO 35 PARTS OF (B) AND THE AMOUNT OF (C) BEING FROM 5 TO 40% BASED ON THE TOTAL WEIGHT OF (A) AND (B).
Claim 2
Dependent Claim
192 words
AS AN ARTICLE OF MANUFACTURE, A SOLID SUBSTRATE CARRYING ON AT LEAST ONE SURFACE THEREOF, A COATING COMPRISING A MIXTURE OF (A) A WATER-INSOLUBLE LINEAR ADDITION POLYMER HAVING A T1 VALUE NOT OVER 30*C., (B) AN AMMONIUM SALT OF A COPOLYMER HAVING A MOLECULAR WEIGHT FROM ABOUT 500 TO 100,000 SELECTED FROM THE GROUP CONSISTING OF (1) COPOLYMERS OF 20 TO 30% BY WEIGHT OF METHACRYLIC ACID AND 70 TO 80% BY WEIGHT OF METHYL METHACRYLATE WHICH FORM AMMONIUM SALTS HAVING, AT A CONCENTRATION OF 22% IN WATER AT ROOM TEMPERATURE, A VISCOSITY BETWEEN 2 AND 30 POISES, (2) COPOLYMERS OF STYRENE AND MALEIC ANHYDRIDE IN APPROXIMATELY 1:1 MOLE RATIO, AND (3) COPOLYMERS IN APPROXIMATELY 1:1 MOLE RATIO OF MALEIC ANHYDRIDE WITH A COMPOUND SELECTED FROM THE GROUP CONSISTING OF BRANCHED-CHAIN OLEFINES HAVING 4 TO 10 CARBON ATOMS AND UNSATURATED TERPENES HAVING 4 TO 10 CARBON ATOMS, AND (C) ZINC OXIDE, THE PROPORTIONS BETWEEN (A) AND (B) BEING 65 TO 90 PARTS BY WEIGHT OF (A) TO 10 TO 35 PARTS OF (B) AND THE AMOUNT OF (C) BEING FROM 5 TO 40% BASED ON THE TOTAL WEIGHT OF (A) AND (B).
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) | 1963-02-01 | 1963-08-03 | 1964-02-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-02-01 | 1967-08-03 | 1968-02-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-02-01 | 1971-08-03 | 1972-02-02 | $7700.00 | Window Closed / Lapsed |