US3309327A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of stabilizing coating compositions and product thereof
Assignee: Pyroxylin Products Inc
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Filing: 1963-09-13
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Granted: 1967-03-14
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Expires: 1983-09-13
Abstract
No abstract record available.
Inventors
- 👤 Frederick H Gayer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 18:32
CPC Classifications
C; C09; C09D; C09D161/00; C09D161/20; C09D167/00; C09D167/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
106 words
A DE-CATALYZED COATING COMPOSITION COMPRISING THERMOSETTING RESIN, A QUANTITY OF ACID CATALYST, SAID ACID CATALYST BEING INEFFECTIVE TO LEAD TO GELATION IN A PREDETERMINED SHORT PERIOD OF TIME, AND ORGANIC SALT, SAID SALT BEING THE REACTION PRODUCT OF AN ADDITIONAL QUANTITY OF SAID ACID CATALYST AND NETURALIZING AMINE FOR SAID CATALYST ADDED TO THE CORRESPONDING THERMOSETTING RESIN COMPOSITION CATAYLZED WITH SAID TWO QUANTITIES OF SAID ACID CATALYST, SAID ACID CATALYST BEING SELECTED FROM THE GROUP CONSISTING OF MONOALKYL PHOSPHATES, TOLUENE SULFONIC ACIDS, ALKANE SULFONIC ACIDS, HYDROCHLORIC ACID AND PHOSPHORIC ACID, SAID CORRESPONDING THERMOSETTING RESIN COMPOSITION BEING NORMALLY UNSTABLE AND SLOWLY REACTIVE TO ADVANCE THE CATALYZED RESINIFICATION.
Claim 2
Dependent Claim
106 words
A DE-CATALYZED COATING COMPOSITION COMPRISING THERMOSETTING RESIN, A QUANTITY OF ACID CATALYST, SAID ACID CATALYST BEING INEFFECTIVE TO LEAD TO GELATION IN A PREDETERMINED SHORT PERIOD OF TIME, AND ORGANIC SALT, SAID SALT BEING THE REACTION PRODUCT OF AN ADDITIONAL QUANTITY OF SAID ACID CATALYST AND NETURALIZING AMINE FOR SAID CATALYST ADDED TO THE CORRESPONDING THERMOSETTING RESIN COMPOSITION CATAYLZED WITH SAID TWO QUANTITIES OF SAID ACID CATALYST, SAID ACID CATALYST BEING SELECTED FROM THE GROUP CONSISTING OF MONOALKYL PHOSPHATES, TOLUENE SULFONIC ACIDS, ALKANE SULFONIC ACIDS, HYDROCHLORIC ACID AND PHOSPHORIC ACID, SAID CORRESPONDING THERMOSETTING RESIN COMPOSITION BEING NORMALLY UNSTABLE AND SLOWLY REACTIVE TO ADVANCE THE CATALYZED RESINIFICATION.
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) | 1970-03-13 | 1970-09-12 | 1971-03-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-03-13 | 1974-09-12 | 1975-03-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-03-13 | 1978-09-12 | 1979-03-14 | $7700.00 | Window Closed / Lapsed |