Patent US2850475A successfully refreshed from Google Patents.
US2850475A
Expired / Lapsed
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Compositions containing polyepoxypolyesters and aldehyde-amide condensates and method of making same
Assignee: SC Johnson and Son Inc
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Filing: 1955-05-27
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Granted: 1958-09-02
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Expires: 1975-05-27
Abstract
No abstract record available.
Inventors
- 👤 Sylvan O Greenlee
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 14:17
CPC Classifications
C; C08; C08L; C08L63/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
63 words
COMPOSITION USEFUL FOR THE PRODUCTION OF COMPLEX REACTION PRODUCTS COMPRISING THE POLYEPOXY-POLYESTERS OF TETRAHYDROPHTHALIC ACID AND GLYCOLS, SAID POLYESTERS CONTAINING EPOXIDE GROUPS FORMED BY REPLACING ONE BOND OF THE OLEFIN LINKAGE OF TETRAHYDROPHTHALIC ACID WITH EPOXY OXYGEN, AND A FUSIBLE ALDEHYDE-AMIDE CONDENSATE, SAID CONDENSATE BEING PREPARED WITH ACTIVE HYDROGEN-CONTAINING AMIDES OF THE GROUP CONSISTING OF UREA, THIO-UREA, MELAMINE, AND ALKYL SUBSTITUTED HOMOLOGUES THEREOF.
Claim 2
Dependent Claim
63 words
COMPOSITION USEFUL FOR THE PRODUCTION OF COMPLEX REACTION PRODUCTS COMPRISING THE POLYEPOXY-POLYESTERS OF TETRAHYDROPHTHALIC ACID AND GLYCOLS, SAID POLYESTERS CONTAINING EPOXIDE GROUPS FORMED BY REPLACING ONE BOND OF THE OLEFIN LINKAGE OF TETRAHYDROPHTHALIC ACID WITH EPOXY OXYGEN, AND A FUSIBLE ALDEHYDE-AMIDE CONDENSATE, SAID CONDENSATE BEING PREPARED WITH ACTIVE HYDROGEN-CONTAINING AMIDES OF THE GROUP CONSISTING OF UREA, THIO-UREA, MELAMINE, AND ALKYL SUBSTITUTED HOMOLOGUES THEREOF.
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) | 1961-09-01 | 1962-03-03 | 1962-09-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-09-01 | 1966-03-03 | 1966-09-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-09-01 | 1970-03-03 | 1970-09-02 | $7700.00 | Window Closed / Lapsed |