Patent US3073804A successfully refreshed from Google Patents.
US3073804A
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Terephthalic acid diglycide ester, resinous condensation products of terephthalic acid diglycide ester, and process for their production
Assignee: Henkel AG and Co KGaA
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Filing: 1960-11-15
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Granted: 1963-01-15
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Expires: 1980-11-15
Abstract
No abstract record available.
Inventors
- 👤 Raecke Bernhard
- 👤 Kohler Rudolf
- 👤 Pietsch Helmut
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 11:52
CPC Classifications
C; C08; C08G; C08G59/00; C08G59/02; C08G59/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
121 words
A SUBSTANTIALLY WATER-INSOLUBLE COMPOSITION CONTAINING A MIXTURE OF MONOMERIC AND LOWER MOLECULAR WEIGHT POLYMERIC EPOXY ESTER COMPOUNDS FORMED BY CONDENSING TEREPHTHALIC ACID HALIDES WITH GLYCIDE, SAID EPOXY ESTER COMPOUNDS CONTAINING AT LEAST ONE EPOXIDE GROUP AND NOT MORE THAN TWO EPOXIDE GROUPS PER INDIVIDUAL MOLECULES, THE GYCIDE RADICAL BEING LINKED TO THE TEREPHTHALIC ACID RADICAL THROUGH A LINKAGE SELECTED FROM THE GROUP CONSISTING OF (1) ESTER LINKAGES AND (2) ETHER LINKAGES TO A GLYCERINE RADICAL LINKED TO SAID TEREPTHALIC ACID RADICAL THROUGH AN ESTER LINKAGE, SAID COMPOSITION HAVING AN AVERAGE EPOXIDE-OXYGEN CONTENT BETWEEN 3.0% AND 11.5%, AN AVERAGE MOLECULAR WEIGHT BETWEEN 200 AND 500, AND AVERAGE SAPONIFICATION NUMBER BETWEEN 390 AND 450 AND SAID COMPOSITION BEING HARDENABLE BY EPOXY RESIN HARDENERS.
Claim 2
Dependent Claim
121 words
A SUBSTANTIALLY WATER-INSOLUBLE COMPOSITION CONTAINING A MIXTURE OF MONOMERIC AND LOWER MOLECULAR WEIGHT POLYMERIC EPOXY ESTER COMPOUNDS FORMED BY CONDENSING TEREPHTHALIC ACID HALIDES WITH GLYCIDE, SAID EPOXY ESTER COMPOUNDS CONTAINING AT LEAST ONE EPOXIDE GROUP AND NOT MORE THAN TWO EPOXIDE GROUPS PER INDIVIDUAL MOLECULES, THE GYCIDE RADICAL BEING LINKED TO THE TEREPHTHALIC ACID RADICAL THROUGH A LINKAGE SELECTED FROM THE GROUP CONSISTING OF (1) ESTER LINKAGES AND (2) ETHER LINKAGES TO A GLYCERINE RADICAL LINKED TO SAID TEREPTHALIC ACID RADICAL THROUGH AN ESTER LINKAGE, SAID COMPOSITION HAVING AN AVERAGE EPOXIDE-OXYGEN CONTENT BETWEEN 3.0% AND 11.5%, AN AVERAGE MOLECULAR WEIGHT BETWEEN 200 AND 500, AND AVERAGE SAPONIFICATION NUMBER BETWEEN 390 AND 450 AND SAID COMPOSITION BEING HARDENABLE BY EPOXY RESIN HARDENERS.
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) | 1966-01-14 | 1966-07-16 | 1967-01-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-14 | 1970-07-16 | 1971-01-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-14 | 1974-07-16 | 1975-01-15 | $7700.00 | Window Closed / Lapsed |