Patent US2940950A successfully refreshed from Google Patents.
US2940950A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Blended methacrylate coating compositions and articles coated therewith
Assignee: Rohm and Haas Co
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Filing: 1957-08-28
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Granted: 1960-06-14
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Expires: 1977-08-28
Abstract
No abstract record available.
Inventors
- 👤 Gusman Samuel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 12:16
CPC Classifications
C; C08; C08F; C08F20/00; C08F20/62; C09; C09D; C09D133/00; C09D133/04; C09D133/06; C09D133/10; C08L; C08L33/00; C08L33/04; C08L33/06; C08L33/062; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31678; Y10T428/31692
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
132 words
A COATING COMPOSITION COMPRISING A SOLUTION IN AN ORGANIC SOLVENT MEDIUM OF A BLEND OF (1) A BASE POLYMER OF A LOWER ALKYL METHACRYLATE IN WHICH THE ALKYL GROUP HAS ONE TO TWO CARBON ATOMS, AND (2) A MODIFYING COPOLYMER OF A LOWER ALKYL METHACRYLATE IN WHICH THE ALKYL GROUP HAS ONE TO FOUR CARBON ATOMS WITH ABOUT 2% TO 15% BY WEIGHT OF AN ADHESION-PROMOTING MONOMER, SAID BASE POLYMER AND MODIFYING COPOLYMER BEING COMPATIBLE WITH EACH OTHER, AND THE PROPORTIONS OF THE BASE POLYMER AND MODIFYING COPOLYMER BEING WITHIN A RANGE TO PROVIDE AN OVERALL AMOUNT OF 0.1% TO 8% BY WEIGHT OF POLYMERIZED UNITS OF AN ADHESION-PROMOTING MONOMER IN THE BLEND, SAID ADHESION-PROMOTING MONOMER BEING SELECTED FROM THE GROUP CONSISTING OF COMPOUNDS OF FORMULAS I, II, III, AND IV FOLLOWING:
Claim 2
Dependent Claim
132 words
A COATING COMPOSITION COMPRISING A SOLUTION IN AN ORGANIC SOLVENT MEDIUM OF A BLEND OF (1) A BASE POLYMER OF A LOWER ALKYL METHACRYLATE IN WHICH THE ALKYL GROUP HAS ONE TO TWO CARBON ATOMS, AND (2) A MODIFYING COPOLYMER OF A LOWER ALKYL METHACRYLATE IN WHICH THE ALKYL GROUP HAS ONE TO FOUR CARBON ATOMS WITH ABOUT 2% TO 15% BY WEIGHT OF AN ADHESION-PROMOTING MONOMER, SAID BASE POLYMER AND MODIFYING COPOLYMER BEING COMPATIBLE WITH EACH OTHER, AND THE PROPORTIONS OF THE BASE POLYMER AND MODIFYING COPOLYMER BEING WITHIN A RANGE TO PROVIDE AN OVERALL AMOUNT OF 0.1% TO 8% BY WEIGHT OF POLYMERIZED UNITS OF AN ADHESION-PROMOTING MONOMER IN THE BLEND, SAID ADHESION-PROMOTING MONOMER BEING SELECTED FROM THE GROUP CONSISTING OF COMPOUNDS OF FORMULAS I, II, III, AND IV FOLLOWING:
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) | 1963-06-14 | 1963-12-14 | 1964-06-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-06-14 | 1967-12-14 | 1968-06-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-06-14 | 1971-12-14 | 1972-06-14 | $7700.00 | Window Closed / Lapsed |