US3846355A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyurethane compositions extended with low aromatic hydrocarbon oils
Assignee: Individual
•
Filing: 1972-10-16
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Granted: 1974-11-05
•
Expires: 1992-10-16
Abstract
Abstract Solid polyurethane resins containing a non-compatible hydrocarbon oil homogeneously dispersed therein are prepared by thoroughly admixing the polyurethane reactants, a low aromatic hydrocarbon oil, and particular emulsifying and thixotropic colloidal agents.
Inventors
- 👤 S Mayer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 13:09
CPC Classifications
C; C08; C08G; C08G18/00; C08G18/06; C08G18/08; C08G18/0838; C08G18/0842; C08G18/0861; C08G18/0871; C08K; C08K5/00; C08K5/01
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
28 words
IN A POLYURETHANE RESIN COMPOSITION EXTENDED WITH AT LEAST 20 PERCENT BY WEIGHT OF A LOW AROMATIC HYDROCARBON OIL LEAVING, A KAURI-BUTANOL VALUE OF BETWEEN BOUT 25 AND
Claim 2
Dependent Claim
28 words
IN A POLYURETHANE RESIN COMPOSITION EXTENDED WITH AT LEAST 20 PERCENT BY WEIGHT OF A LOW AROMATIC HYDROCARBON OIL LEAVING, A KAURI-BUTANOL VALUE OF BETWEEN BOUT 25 AND
Claim 3
Dependent Claim
20 words
An improvement of claim 1 wherein said low aromatic hydrocarbon oil has an aniline point of between 130*F. and 190*F.
Claim 4
Dependent Claim
16 words
An improvement of claim 2 wherein said emulsifying agent is a diethylene glycol fatty acid ether.
Claim 5
Dependent Claim
17 words
An improvement of claim 3 wherein said diethylene glycol fatty acid ether is diethylene glycol oleyl eTher.
Claim 6
Dependent Claim
32 words
An improvement of claim 4 wherein said colloidal thixotropic agent is formed by homogenizing a mineral oil solution of a carbonated, calcium-overbased, oil-soluble sulfonic acid in the presence of active hydrogen compounds.
Claim 7
Dependent Claim
28 words
An improvement of claim 5 wherein said emulsifying agent is present in an amount of from about 2 to about 0.5 times the amount of colloidal agent present.
Claim 8
Dependent Claim
22 words
An improvement of claim 6 wherein the weight ratio of said polyol to said polyisocyanate ranges from about 0.85 to about 1.5.
Claim 9
Dependent Claim
22 words
An improvement of claim 7 wherein said polyol has a molecular weight within the range of from about 500 to about 5,000.
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) | 1977-11-04 | 1978-05-06 | 1978-11-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-11-04 | 1982-05-06 | 1982-11-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-11-04 | 1986-05-06 | 1986-11-05 | $7700.00 | Window Closed / Lapsed |