Patent US2626249A successfully refreshed from Google Patents.
US2626249A
Expired / Lapsed
US
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Resol-alkyd resin products
Assignee: Individual
•
Filing: 1947-07-22
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Granted: 1953-01-20
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Expires: 1967-07-22
Abstract
No abstract record available.
Inventors
- 👤 Honel Herbert
- 👤 Manzano Heinrich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:33
CPC Classifications
C; C08; C08L; C08L67/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
117 words
IN A PROCESS FOR PRODUCING HARDENABLE RESINS, THE IMPROVEMENT WHICH COMPRISES COMBINING (1) A HYDROCARBON-COMPATIBLE LIQUID RESOL FREE FROM ALKALINE CATALYST, OBTAINED FROM A PHENOL HAVING MORE THAN TWO ALIPHATIC C-ATOMS PER EACH PHENOLIC NUCLEUS, WITH (2) A PLASTICIZING ALKYD RESIN CONTAINING LONG ALIPHATIC CHAINS AND HAVING AN EXCESS OF FREE ALCOHOLIC OH GROUPS OVER THE CARBOXYLIC GROUPS OF THE ESTER FORMING COMPONENTS, SAID EXCESS AMOUNTING TO AT LEAST ONE GRAM OH GROUP PER 300 GRAMS OF THE RESIN, BY PROTACTED HEATING IN A SLIGHTLY ACID MEDIUM, AT A TEMPERATURE AND FOR A PERIOD INSUFFICIENT FOR CARRYING OUT THE HARDENING REACTION BUT SUFFICIENT FOR EFFECTING ETHERIFICATION, REMOVING THE WATER, AND INTERRUPTING THE HEATING BEFORE GELATION TAKES PLACE.
Claim 2
Dependent Claim
117 words
IN A PROCESS FOR PRODUCING HARDENABLE RESINS, THE IMPROVEMENT WHICH COMPRISES COMBINING (1) A HYDROCARBON-COMPATIBLE LIQUID RESOL FREE FROM ALKALINE CATALYST, OBTAINED FROM A PHENOL HAVING MORE THAN TWO ALIPHATIC C-ATOMS PER EACH PHENOLIC NUCLEUS, WITH (2) A PLASTICIZING ALKYD RESIN CONTAINING LONG ALIPHATIC CHAINS AND HAVING AN EXCESS OF FREE ALCOHOLIC OH GROUPS OVER THE CARBOXYLIC GROUPS OF THE ESTER FORMING COMPONENTS, SAID EXCESS AMOUNTING TO AT LEAST ONE GRAM OH GROUP PER 300 GRAMS OF THE RESIN, BY PROTACTED HEATING IN A SLIGHTLY ACID MEDIUM, AT A TEMPERATURE AND FOR A PERIOD INSUFFICIENT FOR CARRYING OUT THE HARDENING REACTION BUT SUFFICIENT FOR EFFECTING ETHERIFICATION, REMOVING THE WATER, AND INTERRUPTING THE HEATING BEFORE GELATION TAKES PLACE.
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) | 1956-01-20 | 1956-07-21 | 1957-01-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-01-20 | 1960-07-21 | 1961-01-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-01-20 | 1964-07-21 | 1965-01-20 | $7700.00 | Window Closed / Lapsed |