US3379548A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Water-dispersible alkyds and alkyd resins
Assignee: Chevron USA Inc
•
Filing: 1960-06-02
•
Granted: 1968-04-23
•
Expires: 1980-06-02
Abstract
No abstract record available.
Inventors
- 👤 Jen Yun
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 17:34
CPC Classifications
C; C08; C08G; C08G63/00; C08G63/66; C08G63/668
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
113 words
IN A PROCESS FOR THE PREPARATION OF A WATERDISPERSIBLE, OIL-MODIFIED ALKYD HAVING AN OIL LENGTH UP TO 85 PERCENT, WHICH COMPRISES CONDENSING AS REACTANTS A MATERIAL SELECTED FROM THE GROUP CONSISTING OF THE PHTHALIC ACIDS AND PHTHALIC ANHYDRIDE AND A GLYCERIDE OIL FATTY ACID PARTIAL ESTER OF A POLYHYDRIC ALCOHOL SELECTED FROM THE GROUP CONSISTING OF GLYCEROL AND PENTAERITHRITOL TO A SUBSTNTIALLY LOQ ACID NUMBER, THE STEPS OF ADMIXING WITH SAID REACTANTS WATER-SOLUBLE ADIPHATIC MONOETHER DERIVATIVE OF POLYETHYLENE GLYCOL OF AVERAGE MOLECULAR WEIGHT ABOVE ABOUT 300, IN AN AMOUNT OF 5 TO 30 PERCENT, BY WEIGHT, BASED ON IT AND ALKYD-FORMING REACTANTS, AND CONDENSING THE RESULTING MIXTURE UNTIL A WATER-DISPERSIBLE PRODUCT IS FORMED.
References Cited (Backward Citations)
US2819235A
Cited
US2956964A
Cited
US2950262A
Cited
US2895946A
Cited
US2889294A
Cited
US2889293A
Cited
US2908660A
Cited
US2944991A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-04-23 | 1971-10-23 | 1972-04-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-04-23 | 1975-10-23 | 1976-04-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-04-23 | 1979-10-23 | 1980-04-23 | $7700.00 | Window Closed / Lapsed |