Patent US3345388A successfully refreshed from Google Patents.
US3345388A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fatty acid-polyol partial esters reacted with bis (isocyanatoalkyl) fumarates
Assignee: Union Carbide Corp
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Filing: 1964-11-25
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Granted: 1967-10-03
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Expires: 1984-11-25
Abstract
No abstract record available.
Inventors
- 👤 Charles L Milligan
- 👤 Kenneth L Hoy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 23:54
CPC Classifications
C; C08; C08G; C08G18/00; C08G18/06; C08G18/28; C08G18/30; C08G18/36; C08G18/70; C08G18/81
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
92 words
A COATING COMPOSITION THAT CONSISTS ESSENTIALLY OF THE URETHANE-CONTAINING REACTION PRODUCT OF: (A) A BIS(2-ISOCYANATOETHYL) FUMARATE SELECTED FROM THE GROUP CONSISTING OF BIS(2-SIOCYANATOETHYL) FUMARATE, BIX(1 - METHYL-2-ISOCYANATOETHYL) FURMARATE, AND 1-METHYL-2-ISOCYANATOETHYL 2 - SIOCYANATOETHYL FUMARATE, AND (B) A PARTIAL ESTER OF (1) AN ALIPHATIC ALCOHOL THAT HAS AT LEAST 3 HYDROXYL GROUPS AND (2) DRYING OIL ACID, THE SAID PARTIAL ESTER HAVING AN AVERAGE ALCOHOLIC HYDROXYL FUNCTIONALITY GREATER THAN 1, WHEREIN THE REACTANTS (A) AND (B) ARE REACTED IN PROPORTIONS SUCH THAT THERE IS ABOUT ONE EQUIVALENT OF ISOCYANATO PER EQUIVALENT OF HYDROXYL.
Claim 2
Dependent Claim
92 words
A COATING COMPOSITION THAT CONSISTS ESSENTIALLY OF THE URETHANE-CONTAINING REACTION PRODUCT OF: (A) A BIS(2-ISOCYANATOETHYL) FUMARATE SELECTED FROM THE GROUP CONSISTING OF BIS(2-SIOCYANATOETHYL) FUMARATE, BIX(1 - METHYL-2-ISOCYANATOETHYL) FURMARATE, AND 1-METHYL-2-ISOCYANATOETHYL 2 - SIOCYANATOETHYL FUMARATE, AND (B) A PARTIAL ESTER OF (1) AN ALIPHATIC ALCOHOL THAT HAS AT LEAST 3 HYDROXYL GROUPS AND (2) DRYING OIL ACID, THE SAID PARTIAL ESTER HAVING AN AVERAGE ALCOHOLIC HYDROXYL FUNCTIONALITY GREATER THAN 1, WHEREIN THE REACTANTS (A) AND (B) ARE REACTED IN PROPORTIONS SUCH THAT THERE IS ABOUT ONE EQUIVALENT OF ISOCYANATO PER EQUIVALENT OF HYDROXYL.
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) | 1970-10-02 | 1971-04-03 | 1971-10-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-10-02 | 1975-04-03 | 1975-10-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-10-02 | 1979-04-03 | 1979-10-03 | $7700.00 | Window Closed / Lapsed |