US2553682A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oil-modified alkyd resin modified with cellulose derivative
Assignee: Interchemical Corp
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Filing: 1947-01-25
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Granted: 1951-05-22
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Expires: 1967-01-25
Abstract
No abstract record available.
Inventors
- 👤 Herbert H Scholz
- 👤 Arnold M Taylor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 17:58
CPC Classifications
C; C08; C08G; C08G63/00; C08G63/02; C08G63/12; C08G63/46; C08L; C08L67/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
157 words
A PROCESS FOR PREPARING A MODIFIED ALKYD RESIN FROM THE FOLLOWING REACTANTS: (1) FATTY OIL ACID, (2) POLYHYDRIC ALCOHOL CONTAINING 2 TO 6 HYDROXYL GROUPS, (3) A CELLULOSE DERIVATIVE OF THE CLASS CONSISTING OF FILM-FORMING, ORGANIC SOLVENT SOLUBLE CELLULOSE ETHERS AND ESTERS SAID THERS AND ESTERS CONTAINING FREE CELLULOSE HYDROXYLS AS THE ONLY FREE HYDROXYLS, AND (4) DICARBOXYLIC ACID, SAID PROCESS COMPRISING (A) HEATING SAID CELLULOSE DERIVATIVE WITH AN ESTER OF THE FATTY OIL ACID AND POLYHYDRIC ALCOHOL, WHICH ESTER CONTAINS UNESTERIFIED ALCOHOLIC HYDROXYL GROUPS, SAID HEATING BEING CONTINUED AT 375* TO 450* F. UNTIL A HOMOGENEOUS REACTION PRODUCT IS OBTAINED, AND (B) THEN ESTERIFYING THE HOMOGENEOUS PRODUCT WITH THE DICARBOXYLIC ACID; AND WHEREIN THE SAID REACTANTS ARE REACTED IN SUCH PROPORTIONS THAT THE FATTY OIL ACID, CALCULATED AS ITS TRIESTER OF GLYCEROL, CORRESPONDS TO 18.50% TO 33.40% OF SAID TRIESTER IN THE STARTING MATERIAL, AND THE CELLULOSE DERIVATIVE CONSTITUTES 4.70% TO 25.40% OF THE STARTING MATERIAL.
Claim 2
Dependent Claim
157 words
A PROCESS FOR PREPARING A MODIFIED ALKYD RESIN FROM THE FOLLOWING REACTANTS: (1) FATTY OIL ACID, (2) POLYHYDRIC ALCOHOL CONTAINING 2 TO 6 HYDROXYL GROUPS, (3) A CELLULOSE DERIVATIVE OF THE CLASS CONSISTING OF FILM-FORMING, ORGANIC SOLVENT SOLUBLE CELLULOSE ETHERS AND ESTERS SAID THERS AND ESTERS CONTAINING FREE CELLULOSE HYDROXYLS AS THE ONLY FREE HYDROXYLS, AND (4) DICARBOXYLIC ACID, SAID PROCESS COMPRISING (A) HEATING SAID CELLULOSE DERIVATIVE WITH AN ESTER OF THE FATTY OIL ACID AND POLYHYDRIC ALCOHOL, WHICH ESTER CONTAINS UNESTERIFIED ALCOHOLIC HYDROXYL GROUPS, SAID HEATING BEING CONTINUED AT 375* TO 450* F. UNTIL A HOMOGENEOUS REACTION PRODUCT IS OBTAINED, AND (B) THEN ESTERIFYING THE HOMOGENEOUS PRODUCT WITH THE DICARBOXYLIC ACID; AND WHEREIN THE SAID REACTANTS ARE REACTED IN SUCH PROPORTIONS THAT THE FATTY OIL ACID, CALCULATED AS ITS TRIESTER OF GLYCEROL, CORRESPONDS TO 18.50% TO 33.40% OF SAID TRIESTER IN THE STARTING MATERIAL, AND THE CELLULOSE DERIVATIVE CONSTITUTES 4.70% TO 25.40% OF THE STARTING MATERIAL.
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) | 1954-05-21 | 1954-11-20 | 1955-05-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-05-21 | 1958-11-20 | 1959-05-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-05-21 | 1962-11-20 | 1963-05-22 | $7700.00 | Window Closed / Lapsed |