US3210215A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for coating substrates with compositions comprising vinyl chloride polymers and polyisocyanate modified polyesters of aliphatic acids and diols with carbon: oxygen content of at least 5:2
Assignee: Imperial Chemical Industries Ltd
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Filing: 1962-03-26
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Granted: 1965-10-05
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Expires: 1982-03-26
Abstract
No abstract record available.
Inventors
- 👤 Aitken Roxburgh Richmond
- 👤 Dadson Lawrence Michael
- 👤 Meyrick Thomas James
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 14:13
CPC Classifications
C; C08; C08L; C08L27/00; C08L27/02; C08L27/04; C08L27/06; C08L75/00; C08L75/04; C08L75/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
108 words
A PROCESS FOR COATING MATERIALS WITH POLYVINYL CHLORIDE COMPOSITION WHICH COMPRISES APPLYING TO A SUBSTRATE A COATING OF A COMPOSITION COMPRISING POLYVINYL CHLORIDE AND A MEMBER OF THE GROUP CONSISTING OF POLYISOCYANATE AND SUBSTANCES CAPABLE OF BEHAVING AS POLYISOCYANATES WHEN HEATED BUT WHICH DO NOT FUNCTION AS ISOCYANATES UNTIL HEATED, AND AN ISOCYANATE-REACTIVE POLYESTER WHICH IS COMPLETELY LIQUID ABOUT 20*C. AND WHICH IS OBTAINED BY THE CONDENSATION OF A MIXTURE OF STRAIGHT-CHAIN ALIPHATIC A,W-DIOLS AND STRAIGHT-CHAIN A,W-DICARBOXYLIC ACIDS, THE RATIO OF THE TOTAL NUMBER OF CARBON ATOMS IN SAID POLYESTER OF THE TOTAL NUMBER OF OXYGEN ATOMS THEREIN BEING AT LEAST 5:2, AND THEREAFTER HEATING THE COATED MATERIAL.
Claim 2
Dependent Claim
108 words
A PROCESS FOR COATING MATERIALS WITH POLYVINYL CHLORIDE COMPOSITION WHICH COMPRISES APPLYING TO A SUBSTRATE A COATING OF A COMPOSITION COMPRISING POLYVINYL CHLORIDE AND A MEMBER OF THE GROUP CONSISTING OF POLYISOCYANATE AND SUBSTANCES CAPABLE OF BEHAVING AS POLYISOCYANATES WHEN HEATED BUT WHICH DO NOT FUNCTION AS ISOCYANATES UNTIL HEATED, AND AN ISOCYANATE-REACTIVE POLYESTER WHICH IS COMPLETELY LIQUID ABOUT 20*C. AND WHICH IS OBTAINED BY THE CONDENSATION OF A MIXTURE OF STRAIGHT-CHAIN ALIPHATIC A,W-DIOLS AND STRAIGHT-CHAIN A,W-DICARBOXYLIC ACIDS, THE RATIO OF THE TOTAL NUMBER OF CARBON ATOMS IN SAID POLYESTER OF THE TOTAL NUMBER OF OXYGEN ATOMS THEREIN BEING AT LEAST 5:2, AND THEREAFTER HEATING THE COATED MATERIAL.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-10-04 | 1969-04-05 | 1969-10-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-04 | 1973-04-05 | 1973-10-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-04 | 1977-04-05 | 1977-10-05 | $7700.00 | Window Closed / Lapsed |