US2865869A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composition comprising an alkyd resin, organic polyisocyanate and a tertiary alcohol-concentrated acid foaming agent and method of preparing cellular resin therefrom
Assignee: Hooker Chemical Corp
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Filing: 1956-11-23
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Granted: 1958-12-23
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Expires: 1976-11-23
Abstract
No abstract record available.
Inventors
- 👤 Raymond R Hindersinn
- 👤 Stephen M Creighton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:30
CPC Classifications
C; C08; C08J; C08J9/00; C08J9/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
90 words
A PROCESS FOR THE PRODUCTION OF A POLYURETHANE FOAM WHICH COMPRISES MIXING TOGETHER (A) AN ALKYD RESIN COMPRISED OF THE REACTION PRODUCT OF (1) A POLYCARBOXYLIC COMPOUND SELECTED FROM THE GROUP CONSISTING OF A POLYCARBOXYLIC ACID, A POLYCARBOXYLIC ACID ANHYDRIDE, A POLYCARBOXYLIC ACID, A POLYCARBOXYLIC ACID ANHYDRIDE, ESTER AND (2) A POLYHYDRIC ACOHOL, (B) AN ORGANIC POLYISOCYANATE IN AN AMOUNT FROM ABOUT 30 TO 130 PERCENT BASED ON THE NUMBER OF HYDROXYL AND CARBOXYL GROUPS, AND (C) A FOAMING AGENT COMPRISED OF (1) A TERTIARY ALCOHOL HAVING THE GENERAL FORMULA:
Claim 2
Dependent Claim
90 words
A PROCESS FOR THE PRODUCTION OF A POLYURETHANE FOAM WHICH COMPRISES MIXING TOGETHER (A) AN ALKYD RESIN COMPRISED OF THE REACTION PRODUCT OF (1) A POLYCARBOXYLIC COMPOUND SELECTED FROM THE GROUP CONSISTING OF A POLYCARBOXYLIC ACID, A POLYCARBOXYLIC ACID ANHYDRIDE, A POLYCARBOXYLIC ACID, A POLYCARBOXYLIC ACID ANHYDRIDE, ESTER AND (2) A POLYHYDRIC ACOHOL, (B) AN ORGANIC POLYISOCYANATE IN AN AMOUNT FROM ABOUT 30 TO 130 PERCENT BASED ON THE NUMBER OF HYDROXYL AND CARBOXYL GROUPS, AND (C) A FOAMING AGENT COMPRISED OF (1) A TERTIARY ALCOHOL HAVING THE GENERAL FORMULA:
References Cited (Backward Citations)
US2181640A
Cited
US2577280A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-12-22 | 1962-06-23 | 1962-12-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-12-22 | 1966-06-23 | 1966-12-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-12-22 | 1970-06-23 | 1970-12-23 | $7700.00 | Window Closed / Lapsed |