US3706679A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vinyl resin blowable into a rigid smooth skin microcellular profile
Assignee: Goodyear Tire and Rubber Co
•
Filing: 1970-08-06
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Granted: 1972-12-19
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Expires: 1990-08-06
Abstract
Abstract A composition for and method of making a rigid impact resistant microcellular, whittlable and nailable woodlike structure having a smooth and integral skin.
Inventors
- 👤 Thomas E Hopton
- 👤 Robert P Socha
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 17:25
CPC Classifications
C; C08; C08J; C08J9/00; C08J9/04; C08J9/06; C08J9/10; C08J9/101; C08J2357/00; Y; Y10; Y10S; Y10S264/00; Y10S264/05; Y10S264/14; Y10T; Y10T428/00; Y10T428/249921; Y10T428/249953; Y10T428/249978; Y10T428/249987; Y10T428/249988; Y10T428/249989
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
41 words
The composition of claim 1 wherein the secondary activator is selected from at least one of the group consisting of barium palmitate, barium stearate, and the barium salts of hydrogenated unsaturated fatty acids having a carbon content between C14 and C18.
Claim 2
Dependent Claim
15 words
The composition of claim 1 wherein the primary activator is di n-butyl tin bis (isooctylmercaptoacetate).
Claim 3
Dependent Claim
31 words
The composition of claim 2 wherein the glycolate is a mixture of a major amount of di n-butyl tin bis (isooctylmercaptoacetate) and a minor amount of mono n-butyl tin bis (isooctylmercaptoacetate).
Claim 4
Dependent Claim
20 words
The composition of claim 1 wherein the ratio of the primary to the secondary activator is from 1:1.5 to 6:1.
Claim 5
Dependent Claim
12 words
The composition of claim 1 wherein the chemical blowing agent is azodicarbonamide.
Claim 6
Dependent Claim
28 words
The composition of claim 6 wherein the chemical blowing agent is azodicarbonamide present in an amount between about .3 to about 1.0 parts per 100 parts of resin.
Claim 7
Dependent Claim
30 words
The composition of claim 1 wherein from about 5 to about 12 parts of an impact modifier is present of the composition comprising a polymer of acrylonitrile, butadiene and styrene.
Claim 8
Dependent Claim
35 words
A method of producing a rigid impact resistant, microcellular whittlable and nailable woodlike structure having an integral skin smooth to the touch which comprises continuously extruding as a dry blend the composition of claim 1.
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) | 1975-12-19 | 1976-06-19 | 1976-12-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-12-19 | 1980-06-19 | 1980-12-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-12-19 | 1984-06-19 | 1984-12-19 | $7700.00 | Window Closed / Lapsed |