US3352798A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cross-linking coating polymers with polysulfonazides
Assignee: Hercules LLC
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Filing: 1964-06-17
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Granted: 1967-11-14
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Expires: 1984-06-17
Abstract
No abstract record available.
Inventors
- 👤 David S Breslow
- 👤 Frank E Piech
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 04:02
CPC Classifications
C; C09; C09D; C09D101/00; C09D101/08; C08; C08B; C08B15/00; C08B15/005; C08G; C08G63/00; C08G63/91; C08G63/914; C08K; C08K5/00; C08K5/36; C08K5/41; C08K5/43; C09D4/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
87 words
A PROCESS OF CROSS-LINKING A POLYMER SELECTED FROM THE GROUP CONSISTING OF NITROCELLULOSE, ETHYL CELLULOSE, SATURATED ALKYD RESINS, TRIALLYL PENTAERYTHRITOL ETHERS, TRIALLYL PENTAERYTHRITOL ESTERS, CHLORINATED NATURAL RUBBER, POLY(ETHYLENE OXIDE), AND VINYLIDENE CHLORIDE-ACRYLONITRILE COPOLYMERS, WHICH COMPRISES HEATING SAID POLYMER AT A TEMPERATURE OF FROM ABOUT 100*C. TO ABOUT 250*C. IN ADMIXTURE WITH FROM ABOUT 0.1% TO ABOUT 25% BY WEIGHT OF A POLYSULFONAZIDE CROSS-LINKING AGENT HAVING THE FORMULA R(SO2N3)X WHERE X IS AN INTEGER GREATER THAN 1 AND R IS AN ORGANIC RADICAL INERT TO THE CROSSLINKING REACTIONS.
Claim 2
Dependent Claim
87 words
A PROCESS OF CROSS-LINKING A POLYMER SELECTED FROM THE GROUP CONSISTING OF NITROCELLULOSE, ETHYL CELLULOSE, SATURATED ALKYD RESINS, TRIALLYL PENTAERYTHRITOL ETHERS, TRIALLYL PENTAERYTHRITOL ESTERS, CHLORINATED NATURAL RUBBER, POLY(ETHYLENE OXIDE), AND VINYLIDENE CHLORIDE-ACRYLONITRILE COPOLYMERS, WHICH COMPRISES HEATING SAID POLYMER AT A TEMPERATURE OF FROM ABOUT 100*C. TO ABOUT 250*C. IN ADMIXTURE WITH FROM ABOUT 0.1% TO ABOUT 25% BY WEIGHT OF A POLYSULFONAZIDE CROSS-LINKING AGENT HAVING THE FORMULA R(SO2N3)X WHERE X IS AN INTEGER GREATER THAN 1 AND R IS AN ORGANIC RADICAL INERT TO THE CROSSLINKING REACTIONS.
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) | 1970-11-13 | 1971-05-15 | 1971-11-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-11-13 | 1975-05-15 | 1975-11-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-11-13 | 1979-05-15 | 1979-11-14 | $7700.00 | Window Closed / Lapsed |