Patent US3376241A successfully refreshed from Google Patents.
US3376241A
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US
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Process of preparing water-soluble alkyd resins
Assignee: Synres Chemische Industrie NV
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Filing: 1963-12-12
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Granted: 1968-04-02
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Expires: 1983-12-12
Abstract
No abstract record available.
Inventors
- 👤 Que Adolf Adriaan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 21:06
CPC Classifications
E; E02; E02D; E02D5/00; E02D5/22; E02D5/34; E02D5/38; C; C08; C08G; C08G63/00; C08G63/02; C08G63/12; C08G63/46; C08G63/48; C08G63/91; C08G63/914
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
103 words
A PROCESS FOR PREPARING WATER-SOLUBLE ALKYD RESINS, SAID PROCESS COMPRISING CONDENSING A POLYHYDRIC ALCOHOL WITH A POLYCARBOXYLIC ACID OR ANHYDRIDE, SAID POLYCARBOXYLIC ACID OR ANHYDRIDE COMPRISING 10-40 MOL PERCENT OF AT LEAST ONE TRICARBOXYLIC ACID OR ACID OF HIGHER BASICITY SELECTED FROM THE GROUP CONSISTING OF CITRIC ACID, A MALEINIZED UNSATURATED FATTY ACID AND MALEINIZED COLOPHONY WHEREIN THE EQUIVALENT RATIO OF POLYCARBOXYLIC ACID OR ANHYDRIDE TO POLYHYDRIC ALCOHOL IS SUCH THAT A WATER-SOLUBLE ALKYD RESIN IS OBTAINED HAVING A HYDROXY NUMBER OF 25200 AND AN ACID NUMBER OF 25-100 AND NEUTRALIZING THE THUSLY PRODUCED RESIN BY THE ADDITION OF AMMONIA OR AN AMINE.
Claim 2
Dependent Claim
103 words
A PROCESS FOR PREPARING WATER-SOLUBLE ALKYD RESINS, SAID PROCESS COMPRISING CONDENSING A POLYHYDRIC ALCOHOL WITH A POLYCARBOXYLIC ACID OR ANHYDRIDE, SAID POLYCARBOXYLIC ACID OR ANHYDRIDE COMPRISING 10-40 MOL PERCENT OF AT LEAST ONE TRICARBOXYLIC ACID OR ACID OF HIGHER BASICITY SELECTED FROM THE GROUP CONSISTING OF CITRIC ACID, A MALEINIZED UNSATURATED FATTY ACID AND MALEINIZED COLOPHONY WHEREIN THE EQUIVALENT RATIO OF POLYCARBOXYLIC ACID OR ANHYDRIDE TO POLYHYDRIC ALCOHOL IS SUCH THAT A WATER-SOLUBLE ALKYD RESIN IS OBTAINED HAVING A HYDROXY NUMBER OF 25200 AND AN ACID NUMBER OF 25-100 AND NEUTRALIZING THE THUSLY PRODUCED RESIN BY THE ADDITION OF AMMONIA OR AN AMINE.
Claim 3
Dependent Claim
19 words
THE PROCESS AS CLAIMED IN CLAIM 1, WHEREIN THE TRICARBOXYLIC ACID OR ACID OF HIGHER BASICITY IS MALEINIZED COLOPHONY.
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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) | 1971-04-02 | 1971-10-02 | 1972-04-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-04-02 | 1975-10-02 | 1976-04-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-04-02 | 1979-10-02 | 1980-04-02 | $7700.00 | Window Closed / Lapsed |