US2600422A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Maleate-methacrylate copolymers
Assignee: Rohm and Haas Co
•
Filing: 1950-02-03
•
Granted: 1952-06-17
•
Expires: 1970-02-03
Abstract
No abstract record available.
Inventors
- 👤 Harry T Neher
- 👤 La Verne N Bauer
- 👤 William L Van Horne
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 04:56
CPC Classifications
C; C08; C08F; C08F222/00; C08F222/10; C08F222/12; C08F222/14; C08F222/145
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
113 words
A COPOLYMER OF AN ESTER (A) OF A SATURATED, STRAIGHT CHAINED, ALIPHATIC MONOHYDRIC ALCOHOL, ROH, IN WHICH R IS AN ALKYL GROUP OF 16 TO 18 CARBON ATOMS, AND AN UNSATURATED DICARBOXYLIC ACID, HOOCC(X) =CHCOOH, IN WHICH X IS A MEMBER OF THE CLASS CONSISTING OF HYDROGEN, CHLORINE, AND THE METHYL GROUP, AND OF AN ESTER (B) OF METHACRYLIC ACID AND A SATURATED, MONOHYDRIC, ALIPHATIC ALCOHOL, R''OH, IN WHICH R'' IS AN ALKYL GROUP OF 4 TO 14 CARBON ATOMS, THE PROPORTION OF ESTER (A) GROUPS TO ESTER (B) GROUPS IN THE COPOLYMER BEING FROM 1:1 TO 1:(N-2), WHERE N IS THE NUMBER OF CARBON ATOMS IN THE LONGEST STRAIGHT CHAIN OF R''.
Claim 2
Dependent Claim
113 words
A COPOLYMER OF AN ESTER (A) OF A SATURATED, STRAIGHT CHAINED, ALIPHATIC MONOHYDRIC ALCOHOL, ROH, IN WHICH R IS AN ALKYL GROUP OF 16 TO 18 CARBON ATOMS, AND AN UNSATURATED DICARBOXYLIC ACID, HOOCC(X) =CHCOOH, IN WHICH X IS A MEMBER OF THE CLASS CONSISTING OF HYDROGEN, CHLORINE, AND THE METHYL GROUP, AND OF AN ESTER (B) OF METHACRYLIC ACID AND A SATURATED, MONOHYDRIC, ALIPHATIC ALCOHOL, R''OH, IN WHICH R'' IS AN ALKYL GROUP OF 4 TO 14 CARBON ATOMS, THE PROPORTION OF ESTER (A) GROUPS TO ESTER (B) GROUPS IN THE COPOLYMER BEING FROM 1:1 TO 1:(N-2), WHERE N IS THE NUMBER OF CARBON ATOMS IN THE LONGEST STRAIGHT CHAIN OF R''.
References Cited (Backward Citations)
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Cited
US2279883A
Cited
US2286351A
Cited
US2366517A
Cited
US2544691A
Cited
US2514895A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-06-17 | 1955-12-17 | 1956-06-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-06-17 | 1959-12-17 | 1960-06-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-06-17 | 1963-12-17 | 1964-06-17 | $7700.00 | Window Closed / Lapsed |