Patent US4020038A successfully refreshed from Google Patents.
US4020038A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Paintable rubber composition and products prepared therefrom
Assignee: Goodyear Tire and Rubber Co
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Filing: 1975-09-19
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Granted: 1977-04-26
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Expires: 1995-09-19
Abstract
Abstract A paintable rubber composition of SBR rubber and EPDM rubber, containing, as a stiffening agent, a high styrene resin of butadiene and styrene. This rubber composition can be used in molded and extruded products such as sight shields, automotive facia, fender liners and automotive door panels.
Inventors
- 👤 Joseph F. O'Mahoney, Jr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 12:43
CPC Classifications
C; C08; C08L; C08L9/00; C08L9/06; C08L23/00; C08L23/02; C08L23/16; C08L55/00; C08L55/02
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
96 words
A polymeric composition suitable for use in sight shields and automotive facia comprising (A) 50 to 80 parts by weight of a rubbery butadiene/styrene copolymer, (B) 20 to 50 parts by weight of an ethylene/propylene/nonconjugated diene terpolymer and (C) 15 to 50 parts by weight of a butadiene/styrene resin, all parts being by weight per 100 parts by weight of (A) plus (B) wherein the rubbery butadiene/styrene copolymer has a bound styrene content of from 5 to 50 weight percent and the butadiene/styrene resin has a bound styrene content of from 75 to 90 weight percent.
Claim 2
Dependent Claim
96 words
A polymeric composition suitable for use in sight shields and automotive facia comprising (A) 50 to 80 parts by weight of a rubbery butadiene/styrene copolymer, (B) 20 to 50 parts by weight of an ethylene/propylene/nonconjugated diene terpolymer and (C) 15 to 50 parts by weight of a butadiene/styrene resin, all parts being by weight per 100 parts by weight of (A) plus (B) wherein the rubbery butadiene/styrene copolymer has a bound styrene content of from 5 to 50 weight percent and the butadiene/styrene resin has a bound styrene content of from 75 to 90 weight percent.
Claim 3
Dependent Claim
28 words
The polymeric composition of claim 1 wherein said composition contains 70 to 100 parts by weight of carbon black and 2.5 to 4.0 parts by weight of sulfur.
Claim 4
Dependent Claim
26 words
The polymeric composition of claim 1 comprising 55 to 70 parts of (A), 30 to 45 parts of (B) and 25 to 35 parts of (C).
Claim 5
Dependent Claim
10 words
The vulcanized form of the polymeric composition of claim 2.
Claim 6
Dependent Claim
20 words
The polymeric composition of claim 1 wherein the rubbery butadiene/styrene copolymer has an ML-4 value of from 20 to 40.
Claim 7
Dependent Claim
20 words
The polymeric composition of claim 1 wherein the rubbery butadiene/styrene copolymer has an ML-4 value of from 20 to 30.
Claim 8
Dependent Claim
28 words
The vulcanized polymeric composition of claim 4 wherein said composition is in the form of a sight shield, automotive facia, a fender liner or an automotive door panel.
Claim 9
Dependent Claim
21 words
The vulcanized polymeric composition of claim 4 wherein said composition is in the form of a sight shield or automotive facia.
Claim 10
Dependent Claim
18 words
The vulcanized polymeric composition of claim 4 wherein said composition is in the form of a sight shield.
References Cited (Backward Citations)
US2677674A
Cited
US3445543A
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 |