US3306868A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dicyclopentadiene-dicarboxylic acid reaction products and polyesters thereof
Assignee: Archer Daniels Midland Co
•
Filing: 1963-07-29
•
Granted: 1967-02-28
•
Expires: 1983-07-29
Abstract
No abstract record available.
Inventors
- 👤 Jr Herbert M Adrian
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 02:10
CPC Classifications
C; C08; C08F; C08F4/00; C08F4/06; C08F236/00; C08F236/02; C08F236/04; C08F32/00; C08F32/08; C08F36/00; C08F36/02; C08F36/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
107 words
A PROCESS COMPRISING PROVIDING A REACTION MIXTURE OF (1) AN UNSATURATED COMPOUND SELECTED FROM THE GROUP CONSISTING OF UNSATURATED FATTY ACIDS, UNSATURATED FATTY ACID ESTERS OF POLYHYDRIC ALCOHOLS, AND PETROLEUM-DERIVED OLEFINS, SAID UNSATURATED COMPOUND HAVING AN UNSATURATED ALIPHATIC CHAIN WITH 8-26 CARBON ATOMS, (2) DICYCLOPENTADIENE, AND (3) A CATALYST COMPRISING 0.02 TO 0.35% BORON TRIFLUORIDE AND 1 TO 10% OF A CARBOXYLIC ACID COMPONENT HAVING 2-8 CARBON ATOMS PER MOLECULE AND SELECTED FROM THE GROUP CONSISTING OF DICARBOXYLIC ACIDS AND THEIR ANHYDRIDES, SAID PERCENTS BEING BASED ON THE TOTALF WEIGHT OF SAID REACTION MIXTURE, AND HEATING SAID REACTION MIXTURE AT A TEMPERATURE OF 130-340*F. TO EFFECT COPOLYMERIZATION.
Claim 2
Dependent Claim
107 words
A PROCESS COMPRISING PROVIDING A REACTION MIXTURE OF (1) AN UNSATURATED COMPOUND SELECTED FROM THE GROUP CONSISTING OF UNSATURATED FATTY ACIDS, UNSATURATED FATTY ACID ESTERS OF POLYHYDRIC ALCOHOLS, AND PETROLEUM-DERIVED OLEFINS, SAID UNSATURATED COMPOUND HAVING AN UNSATURATED ALIPHATIC CHAIN WITH 8-26 CARBON ATOMS, (2) DICYCLOPENTADIENE, AND (3) A CATALYST COMPRISING 0.02 TO 0.35% BORON TRIFLUORIDE AND 1 TO 10% OF A CARBOXYLIC ACID COMPONENT HAVING 2-8 CARBON ATOMS PER MOLECULE AND SELECTED FROM THE GROUP CONSISTING OF DICARBOXYLIC ACIDS AND THEIR ANHYDRIDES, SAID PERCENTS BEING BASED ON THE TOTALF WEIGHT OF SAID REACTION MIXTURE, AND HEATING SAID REACTION MIXTURE AT A TEMPERATURE OF 130-340*F. TO EFFECT COPOLYMERIZATION.
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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) | 1970-02-27 | 1970-08-29 | 1971-02-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-27 | 1974-08-29 | 1975-02-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-27 | 1978-08-29 | 1979-02-28 | $7700.00 | Window Closed / Lapsed |