US2978433A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermosettable compositions of methyl methacrylate, methacrylic acid, and aminoplastcondensate, process of making same, and articles obtained
Assignee: Rohm and Haas Co
•
Filing: 1956-07-26
•
Granted: 1961-04-04
•
Expires: 1976-07-26
Abstract
No abstract record available.
Inventors
- 👤 Melvin D Hurwitz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 02:56
CPC Classifications
B; B29; B29C; B29C39/00; B29C39/003; B29C39/006; C; C08; C08F; C08F220/00; C08F220/02; C08F220/10; C08F220/12; C08F220/14; C08F283/00; B29K; B29K2033/00; B29K2033/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
121 words
A COMPOSITION ADAPTED TO BE THERMOSET TO A HARD, HOMOGENEOUS RESINOUS PRODUCT CONSISTING OF A MIXTURE OF (A) MONOETHYLENICALLY UNSATURATED COPOLYMERIZABLE MONOMERS CONSISTILNG ESSENTIALLY OF (1) METHYL METHACRYLATE AND (2) METHACRYLIC ACID, SAID MONOMERS BEING PRESENT IN WEIGHT PROPORTIONS OF 94 TO 99 PARTS OF (1) AND 1 TO 6 PARTS OF (2), AND (B) A RESIN-FORMING ALKYLATED CONDENSATE OF FORMALDEHYDE WITH A MEMBER SELECTED FROM THE GROUP CONSISTING OF UREA, DICYANDIAMIDE, AMINOTRIAZINES, ACRYLAMIDE, AND METHACRYLAMIDE, SAID ALKYLATED CONDENSATE CONTAINING ALKOXYMETHYL GROUPS HAVING 2 TO 5 CARBON ATOMS, THE AMOUNT OF CONDENSATE BEING FROM 1.2 PARTS TO 10.5 PARTS BY WEIGHT PER 100 PARTS BY WEIGHT OF COPOLYMERIZABLE MONOMERS AND THE COPOLYMERIZABLE MONOMERS BEING THE ONLY VOLATILE MATERIAL IN THE COMPOSITION.
Claim 2
Dependent Claim
121 words
A COMPOSITION ADAPTED TO BE THERMOSET TO A HARD, HOMOGENEOUS RESINOUS PRODUCT CONSISTING OF A MIXTURE OF (A) MONOETHYLENICALLY UNSATURATED COPOLYMERIZABLE MONOMERS CONSISTILNG ESSENTIALLY OF (1) METHYL METHACRYLATE AND (2) METHACRYLIC ACID, SAID MONOMERS BEING PRESENT IN WEIGHT PROPORTIONS OF 94 TO 99 PARTS OF (1) AND 1 TO 6 PARTS OF (2), AND (B) A RESIN-FORMING ALKYLATED CONDENSATE OF FORMALDEHYDE WITH A MEMBER SELECTED FROM THE GROUP CONSISTING OF UREA, DICYANDIAMIDE, AMINOTRIAZINES, ACRYLAMIDE, AND METHACRYLAMIDE, SAID ALKYLATED CONDENSATE CONTAINING ALKOXYMETHYL GROUPS HAVING 2 TO 5 CARBON ATOMS, THE AMOUNT OF CONDENSATE BEING FROM 1.2 PARTS TO 10.5 PARTS BY WEIGHT PER 100 PARTS BY WEIGHT OF COPOLYMERIZABLE MONOMERS AND THE COPOLYMERIZABLE MONOMERS BEING THE ONLY VOLATILE MATERIAL IN THE COMPOSITION.
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) | 1964-04-03 | 1964-10-03 | 1965-04-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-04-03 | 1968-10-03 | 1969-04-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-04-03 | 1972-10-03 | 1973-04-04 | $7700.00 | Window Closed / Lapsed |