US4038088A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mold release agent
Assignee: Motor Wheel Corp
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Filing: 1975-03-10
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Granted: 1977-07-26
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Expires: 1995-03-10
Abstract
Abstract A mold release agent comprising metallic soaps of the fatty acids in combination with 0.03 to one percent of a polyurethane catalyst selected from secondary and tertiary amines and organic tin compounds.
Inventors
- 👤 John R. White
- 👤 Ram M. Krishnan
- 👤 James D. Wolfe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 10:29
CPC Classifications
B; B29; B29C; B29C33/00; B29C33/56; B29C33/60; B29K; B29K2075/00
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
105 words
A mold release containing a solution of a sodium or potassium soap of a fatty acid having the structure C n H 2n -1 COOH or C n H 2n +1 COOH where n is an integer having values of 11 to 22 and 99 to 95 percent by weight of a diluent consisting of alcohol or alcohol and water with the amount of water varying from 0 to 24 percent by weight and the alcohol being selected from the group consisting of methanol and ethanol, isopropanol, and a polyurethane catalyst selected from the class consisting of secondary amines, tertiary amines and organo tin compounds.
Claim 2
Dependent Claim
105 words
A mold release containing a solution of a sodium or potassium soap of a fatty acid having the structure C n H 2n -1 COOH or C n H 2n +1 COOH where n is an integer having values of 11 to 22 and 99 to 95 percent by weight of a diluent consisting of alcohol or alcohol and water with the amount of water varying from 0 to 24 percent by weight and the alcohol being selected from the group consisting of methanol and ethanol, isopropanol, and a polyurethane catalyst selected from the class consisting of secondary amines, tertiary amines and organo tin compounds.
Claim 3
Dependent Claim
12 words
The mold release of claim 1 wherein the catalyst is triethylene diamine.
Claim 4
Dependent Claim
18 words
The mold release of claim 1 wherein the catalyst is present in 0.03 to one percent by weight.
Claim 5
Dependent Claim
12 words
The mold release of claim 1 wherein the catalyst is dibutyltin dilaurate.
Claim 6
Dependent Claim
12 words
The mold release of claim 3 wherein the catalyst is dibutyltin dilaurate.
References Cited (Backward Citations)
US1462563A
Cited
US2901361A
Cited
US2976160A
Cited
US3413390A
Cited
US3468991A
Cited
US3694530A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-07-25 | 1981-01-24 | 1981-07-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-07-25 | 1985-01-24 | 1985-07-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-07-25 | 1989-01-24 | 1989-07-26 | $7700.00 | Window Closed / Lapsed |