US2969338A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyester containing ester of levulinic acid and pentaerythritol with polymerized polycarboxylic acid
Assignee: Armstrong World Industries Inc
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Filing: 1959-05-01
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Granted: 1961-01-24
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Expires: 1979-05-01
Abstract
No abstract record available.
Inventors
- 👤 John A Parker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 13:01
CPC Classifications
C; C08; C08G; C08G63/00; C08G63/02; C08G63/12; C08G63/16; C08G63/18; C08G63/199; C08G63/20; C09; C09D; C09D167/00; D; D06; D06N; D06N3/00; D06N3/12; D06N3/121; Y; Y10; Y10S; Y10S524/00; Y10S524/914
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
137 words
THE METHOD OF MAKING A NON-OXIDIZABLE KETO-ESTER BINDER SYSTEM FOR RESILIENT FLOORING COMPARISING REACTING ISOPHTHALIC ACID AND A GLYCOL SELECTED FROM THE GROUP CONSISTING OF 1.3-BUTYLENE GLYCOL, NEOPENTYL GLYCOL, EHTYLENE GLYCOL, AND DIETHYLENE GYLCOL, TO FORM A POLYESTER HAVING AN ACID NUMBER IN THE RANGE OF 10-40, ADMIXING WITH SAID POLYESTER A MATERIAL SELECTED FROM THE GROUP CONSISTING OF THE PENTAERYTHRITOL MONOESTER OF LEVULINIC ACID, AND THE INGREDIENTS FOR FORMING SAID MONOESTER, THE RESULTING MIXTURE CONTAINING ABOUT 50-80% BY WEIGHT OF SAID POLYESTER, ADDING TO SAID RESULTING MIXTURE AN ALIPHATIC, POLYCARBOXYLIC, POLYMERIZED, FATTY ACID CONTAINING AT LEAST 36 CARBON ATOMS IN AN AMOUNT OF 40-60% BY WEIGHT OF SAID POLYCARBOXYLIC ACID BASED ON THE TOTAL WEIGHT OF THE MIXTURE, AND HEATING THE FINAL REACTION MIXTURE TO A TEMPERATURE IN THE RANGE OF 150*-225*C. TO PRODUCE A GEL.
Claim 2
Independent Claim
137 words
THE METHOD OF MAKING A NON-OXIDIZABLE KETO-ESTER BINDER SYSTEM FOR RESILIENT FLOORING COMPARISING REACTING ISOPHTHALIC ACID AND A GLYCOL SELECTED FROM THE GROUP CONSISTING OF 1.3-BUTYLENE GLYCOL, NEOPENTYL GLYCOL, EHTYLENE GLYCOL, AND DIETHYLENE GYLCOL, TO FORM A POLYESTER HAVING AN ACID NUMBER IN THE RANGE OF 10-40, ADMIXING WITH SAID POLYESTER A MATERIAL SELECTED FROM THE GROUP CONSISTING OF THE PENTAERYTHRITOL MONOESTER OF LEVULINIC ACID, AND THE INGREDIENTS FOR FORMING SAID MONOESTER, THE RESULTING MIXTURE CONTAINING ABOUT 50-80% BY WEIGHT OF SAID POLYESTER, ADDING TO SAID RESULTING MIXTURE AN ALIPHATIC, POLYCARBOXYLIC, POLYMERIZED, FATTY ACID CONTAINING AT LEAST 36 CARBON ATOMS IN AN AMOUNT OF 40-60% BY WEIGHT OF SAID POLYCARBOXYLIC ACID BASED ON THE TOTAL WEIGHT OF THE MIXTURE, AND HEATING THE FINAL REACTION MIXTURE TO A TEMPERATURE IN THE RANGE OF 150*-225*C. TO PRODUCE A GEL.
References Cited (Backward Citations)
US2895932A
Cited
US2907736A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-01-24 | 1964-07-25 | 1965-01-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-01-24 | 1968-07-25 | 1969-01-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-01-24 | 1972-07-25 | 1973-01-24 | $7700.00 | Window Closed / Lapsed |