US3376241A
Expired / Lapsed
US
⏱️ 0.0 years remaining
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
2026-10-29 17:44
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.
References Cited (Backward Citations)
US1998744A
Cited
US2992197A
Cited
US3053783A
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US3021308A
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US3123578A
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US3120499A
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US3070256A
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US3108085A
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US3224992A
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US3213063A
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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 |