US3098052A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thixotropic coating solutions
Assignee: California Research LLC
•
Filing: 1957-12-12
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Granted: 1963-07-16
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Expires: 1977-12-12
Abstract
No abstract record available.
Inventors
- 👤 John V Schmitz
- 👤 Roswell J Blackinton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 12:27
CPC Classifications
C; C09; C09D; C09D167/00; C09D167/08; C08; C08G; C08G63/00; C08G63/02; C08G63/12; C08G63/46; C08G63/48; C09D163/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
128 words
PROCESS FOR THE PRODUCTION FOF THIXOTROPIC COATING SOLUTIONS WHICH COMPRISES COREACTING THE FOLLOWING COMPONENTS AT A TEMPERATURE IN ABOUT THE RANGE 80*C.-180* C. IN THE PRESENCE OF AN INERT ORGANIC SOLVENT TO THE INCIPIENT GEL STAGE: (1) ANS OIL-MODIFIED POLYESTER RESIN OF A POLYFUNCTIONAL ALCOHOL AND ACID MATERIAL SELECTED FROM THE GROUP CONSISTING OF POLYFUNCTIONAL CARBOXYLIC ACIDS AND THEIR ANHYDRIDE, SAID RESIN HAVING AN ACID NUMBER BELOW 100; AND (2) A CROSS-LINKING EPOXIDIZE UNSATURATED GLYCERIDE OIL HAVING AT LEAST TWO EPOXY GROUPS PER MOLECULE IN AN AMOUNT UP TO 20 PERCENT BY WEIGHT BASED ON COMBINED WEIGHT OF THE POLYESTER RESIN AND EPOXIDIZED OIL, THE CONCENTRATION OF SAID SOLVENT BEING NO LESS THAN 15PERCENT, BY WEIGHT, BASED ON THE REACTIONS AND SOLVENT, AT THE CONCLUSION OF THE REACTION.
Claim 2
Dependent Claim
128 words
PROCESS FOR THE PRODUCTION FOF THIXOTROPIC COATING SOLUTIONS WHICH COMPRISES COREACTING THE FOLLOWING COMPONENTS AT A TEMPERATURE IN ABOUT THE RANGE 80*C.-180* C. IN THE PRESENCE OF AN INERT ORGANIC SOLVENT TO THE INCIPIENT GEL STAGE: (1) ANS OIL-MODIFIED POLYESTER RESIN OF A POLYFUNCTIONAL ALCOHOL AND ACID MATERIAL SELECTED FROM THE GROUP CONSISTING OF POLYFUNCTIONAL CARBOXYLIC ACIDS AND THEIR ANHYDRIDE, SAID RESIN HAVING AN ACID NUMBER BELOW 100; AND (2) A CROSS-LINKING EPOXIDIZE UNSATURATED GLYCERIDE OIL HAVING AT LEAST TWO EPOXY GROUPS PER MOLECULE IN AN AMOUNT UP TO 20 PERCENT BY WEIGHT BASED ON COMBINED WEIGHT OF THE POLYESTER RESIN AND EPOXIDIZED OIL, THE CONCENTRATION OF SAID SOLVENT BEING NO LESS THAN 15PERCENT, BY WEIGHT, BASED ON THE REACTIONS AND SOLVENT, AT THE CONCLUSION OF THE REACTION.
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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) | 1966-07-15 | 1967-01-14 | 1967-07-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-07-15 | 1971-01-14 | 1971-07-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-07-15 | 1975-01-14 | 1975-07-16 | $7700.00 | Window Closed / Lapsed |