Patent US2975071A successfully refreshed from Google Patents.
US2975071A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thickened compositions and method of making the same
Assignee: Minerals and Chemicals Philipp Corp
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Filing: 1958-02-04
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Granted: 1961-03-14
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Expires: 1978-02-04
Abstract
No abstract record available.
Inventors
- 👤 Thomas H Ferrigno
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 09:23
CPC Classifications
C; C09; C09D; C09D5/00; C09D5/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
106 words
A METHOD OF FORMING A THIOXOTROPIC COMPOSITION WHICH COMPRISES MIXING A LIQUID ESTERBODY SELECTED FROM THE GROUP CONSISTING OF A GLYCEROL ESTER OF AN UNSATURATED LONG CHAIN ALIPHATIC MONOCARBOXYLIC ACID AND AN OIL-MODIFIED ALKYD RESIN, WITH FROM ABOUT 0.5 PERCENT TO 5.0 PERCENT, BASED ON THE WEIGHT OF SAID ESTERBODY, OF AN ARYLENE DIISOCYANATE IN THE PRESENCE OF PARTICLES OF A HYDRATED SILICEOUS MATERIAL SELECTED FROM THE GROUP CONSISTING OF HYDRATED CALCIUM SILICATE, HYDRATED MAGNESIUM SILICATE, KIESELGUHR, KAOLIN CLAY, HALLOYSITE CLAY, MONTMORILLONITE CLAY AND ATTAPULGITE CLAY, AND AGING SAID MIXTURE AT AMBIENT TEMPERATURE FOR A TIME SUFFICIENT TO CAUSE SAID MIXTURE TO FORM A THIXOTROPIC GEL.
Claim 2
Independent Claim
106 words
A METHOD OF FORMING A THIOXOTROPIC COMPOSITION WHICH COMPRISES MIXING A LIQUID ESTERBODY SELECTED FROM THE GROUP CONSISTING OF A GLYCEROL ESTER OF AN UNSATURATED LONG CHAIN ALIPHATIC MONOCARBOXYLIC ACID AND AN OIL-MODIFIED ALKYD RESIN, WITH FROM ABOUT 0.5 PERCENT TO 5.0 PERCENT, BASED ON THE WEIGHT OF SAID ESTERBODY, OF AN ARYLENE DIISOCYANATE IN THE PRESENCE OF PARTICLES OF A HYDRATED SILICEOUS MATERIAL SELECTED FROM THE GROUP CONSISTING OF HYDRATED CALCIUM SILICATE, HYDRATED MAGNESIUM SILICATE, KIESELGUHR, KAOLIN CLAY, HALLOYSITE CLAY, MONTMORILLONITE CLAY AND ATTAPULGITE CLAY, AND AGING SAID MIXTURE AT AMBIENT TEMPERATURE FOR A TIME SUFFICIENT TO CAUSE SAID MIXTURE TO FORM A THIXOTROPIC GEL.
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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) | 1964-03-13 | 1964-09-12 | 1965-03-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-03-13 | 1968-09-12 | 1969-03-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-03-13 | 1972-09-12 | 1973-03-14 | $7700.00 | Window Closed / Lapsed |