US4020001A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Diol curative for polyurethane
Assignee: Goodyear Tire and Rubber Co
•
Filing: 1975-03-31
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Granted: 1977-04-26
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Expires: 1995-03-31
Abstract
Abstract A polyol curative satisfactory for curing polyurethane reaction mixtures, said curative comprising ethylene glycol and a second diol selected from the class consisting of diethylene glycol, diisopropylene glycol, thio diethylene glycol and diethanol carbamate, ethanol isopropanol carbamate and ethanol diethanol carbamate.
Inventors
- 👤 John R. White
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 08:13
CPC Classifications
C; C08; C08G; C08G18/00; C08G18/06; C08G18/70; C08G18/72; C08G18/80; C08G18/8003; C08G18/8006; C08G18/8009; C08G18/8012; C08G18/8019; C08G18/08; C08G18/10; C08G18/28; C08G18/30; C08G18/38; C08G18/3819; C08G18/3823; C08G18/3831; C08G18/3855; C08G18/3863; C08G18/3865; C08G18/3868; C08G18/65; Y; Y10; Y10S; Y10S264/00; Y10S264/14
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
36 words
A polyol curative satisfactory for curing polyurethane reaction mixtures, said curative comprising ethylene glycol and a second diol selected from the class consisting of thio diethylene and the carbamates of diethanol, ethanol isopropanol and ethanol diethanol.
Claim 2
Dependent Claim
36 words
A polyol curative satisfactory for curing polyurethane reaction mixtures, said curative comprising ethylene glycol and a second diol selected from the class consisting of thio diethylene and the carbamates of diethanol, ethanol isopropanol and ethanol diethanol.
Claim 3
Dependent Claim
28 words
The polyol curative of claim 1 wherein the second diol is diethanol carbamate and is present in from about 10 to 35 mole percent of the total curative.
References Cited (Backward Citations)
US3248373A
Cited
US3591561A
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US3595814A
Cited
US3664976A
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US3661811A
Cited
US3630973A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-04-25 | 1980-10-25 | 1981-04-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-04-25 | 1984-10-25 | 1985-04-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-04-25 | 1988-10-25 | 1989-04-26 | $7700.00 | Window Closed / Lapsed |