US4456696A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Catalyst for making polyurethanes
Assignee: Air Products and Chemicals Inc
•
Filing: 1982-10-21
•
Granted: 1984-06-26
•
Expires: 2002-10-21
Abstract
Abstract Polyurethane foams with excellent physical properties are obtained by using a catalyst composition of a tertiary amine and 2-ethylhexanoic acid.
Inventors
- 👤 Francis W. Arbir
- 👤 Daniel S. Raden
- 👤 Kenneth W. Narducy
- 👤 Francois M. Casati
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 09:35
CPC Classifications
C; C08; C08J; C08J9/00; C08J9/04; C08J9/12; C08J9/14; C08J9/143; C08J9/144; C08J9/145; C08G; C08G18/00; C08G18/06; C08G18/08; C08G18/16; C08G18/18; C08G18/1825; C08G18/1875; C08J2375/00; C08J2375/04
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
22 words
A catalyst composition for preparing urethane foams, comprising a physical mixture of a tertiary amine and 10-50 equivalent-% thereof of 2-ethylhexanoic acid.
Claim 2
Dependent Claim
22 words
A catalyst composition for preparing urethane foams, comprising a physical mixture of a tertiary amine and 10-50 equivalent-% thereof of 2-ethylhexanoic acid.
Claim 3
Dependent Claim
13 words
The composition of claim 1 wherein said equivalent is between 20 and 30%.
Claim 4
Dependent Claim
9 words
The composition of claim 1 dissolved in dipropylene glycol.
Claim 5
Dependent Claim
20 words
The composition of claim 1 dissolved in 0.5 to 2.0 parts of dipropylene glycol per part of said catalyst composition.
References Cited (Backward Citations)
US3160601A
Cited
US3591524A
Cited
US3706687A
Cited
US3954684A
Cited
US4040992A
Cited
US4212952A
Cited
US4421673A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-06-26 | 1987-12-26 | 1988-06-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-06-26 | 1991-12-26 | 1992-06-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-06-26 | 1995-12-26 | 1996-06-26 | $7700.00 | Window Closed / Lapsed |