US2512410A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for producing alkyd resins and resins obtained therefrom
Assignee: Shell Development Co
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Filing: 1948-06-12
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Granted: 1950-06-20
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Expires: 1968-06-12
Abstract
No abstract record available.
Inventors
- 👤 David E Adelson
- 👤 Jr Harold F Gray
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 07:58
CPC Classifications
C; C08; C08G; C08G63/00; C08G63/02; C08G63/12; C08G63/123; C08G63/127
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
90 words
A PROCESS FOR THE PRODUCTION OF AN ALKYD RESIN WHICH COMPRISES HEATING A LINEAR HOMOPOLYMER OF ALLYL ACETATE WHICH CONTAINS FROM 3 TO 15 MONOMER UNITS JOINED TOGETHER THROUGH CARBON TO CARBON LINKAGES WITH DIETHYL PHTALATE AND .5% SODIUM ETHYLATE UNDER REFLUX CONDITIONS, AND REMOVING THE FORMED ETHYL ACETATE FROM THE REACTION MIXTURE BY DISTILLATION, THE HOMOPOLYMER OF ALLYL ACETATE AND THE DIETHYL PHTHALATE BEING ADDED TO THE REACTION IN SUCH QUANTITIES THAT THE RATIO OF THE ACETATE ESTER RADICALS AND THE INDIVIDUAL PHTHALIC ACID ESTER RADICALS IS ABOUT 1:1.
Claim 2
Dependent Claim
90 words
A PROCESS FOR THE PRODUCTION OF AN ALKYD RESIN WHICH COMPRISES HEATING A LINEAR HOMOPOLYMER OF ALLYL ACETATE WHICH CONTAINS FROM 3 TO 15 MONOMER UNITS JOINED TOGETHER THROUGH CARBON TO CARBON LINKAGES WITH DIETHYL PHTALATE AND .5% SODIUM ETHYLATE UNDER REFLUX CONDITIONS, AND REMOVING THE FORMED ETHYL ACETATE FROM THE REACTION MIXTURE BY DISTILLATION, THE HOMOPOLYMER OF ALLYL ACETATE AND THE DIETHYL PHTHALATE BEING ADDED TO THE REACTION IN SUCH QUANTITIES THAT THE RATIO OF THE ACETATE ESTER RADICALS AND THE INDIVIDUAL PHTHALIC ACID ESTER RADICALS IS ABOUT 1:1.
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) | 1953-06-19 | 1953-12-19 | 1954-06-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-06-19 | 1957-12-19 | 1958-06-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-06-19 | 1961-12-19 | 1962-06-20 | $7700.00 | Window Closed / Lapsed |