Patent US4020054A successfully refreshed from Google Patents.
US4020054A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Impact resistant high vinyl polydiene thermosetting compositions containing fibrous sulfur-containing organic polymer
Assignee: Phillips Petroleum Co
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Filing: 1975-07-03
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Granted: 1977-04-26
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Expires: 1995-07-03
Abstract
Abstract A thermosetting composition is provided comprising a high vinyl polymer of a conjugated diene, a silane coupling agent, a viscosity reducing agent, an organic peroxide curing agent, and a filler comprising inorganic, particulate metal silicate or metal oxide and sulfur-containing organic polymer fiber. In a preferred embodiment of this invention the sulfur-containing polymer is poly (phenylene sulfide) and the conjugated diene polymer has at least about 50 percent unsaturation in the form of pendant groups containing olefinic unsaturation.
Inventors
- 👤 Lawrence M. Fodor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 23:11
CPC Classifications
C; C08; C08L; C08L9/00; C08K; C08K5/00; C08K5/04; C08K5/14; C08K5/54; C08L81/00
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
67 words
A thermosetting composition comprising: 1. high vinyl polymer of conjugated diene, said diene having 4-10 carbon atoms per molecule with the polymer having at least 50 percent unsaturation in the form of pendant groups having olefinic unsaturation, 2. silane coupling agent, 3. process aid, 4. organic peroxide curing agent, and 5. filler comprising: a. inorganic, particulate metal silicate or metal oxide and b. phenylene sulfide polymer fiber.
Claim 2
Dependent Claim
67 words
A thermosetting composition comprising: 1. high vinyl polymer of conjugated diene, said diene having 4-10 carbon atoms per molecule with the polymer having at least 50 percent unsaturation in the form of pendant groups having olefinic unsaturation, 2. silane coupling agent, 3. process aid, 4. organic peroxide curing agent, and 5. filler comprising: a. inorganic, particulate metal silicate or metal oxide and b. phenylene sulfide polymer fiber.
Claim 3
Dependent Claim
120 words
A thermosetting composition of claim 1 wherein the total filler contained ranges from about 40 to about 500 parts by weight per 100 parts by weight polymer, the weight ratio of poly(phenylene sulfide) fiber to metal silicate or metal oxide is in the range from about 0.1:1 to about 1:1, the organic silane is present in the range of from about 0.1 to about 10 parts per hundred parts by weight of polymer, the organic peroxide curing agent is present in the range of about 1 to about 12 parts per hundred parts by weight of polymer, and the processing aid is present in the range of about 0.5 to about 8 parts per hundred parts by weight of polymer.
Claim 4
Dependent Claim
25 words
A composition of claim 2 wherein said metal silicate is chosen from among silicates of aluminum, copper, silver, magnesium, calcium, cadmium, lead, manganese and nickel.
Claim 5
Dependent Claim
25 words
A thermosetting composition of claim 1 wherein the said metal oxide is chosen from among oxides of aluminum, iron, magnesium, silicon, titanium, zinc and zirconium.
Claim 6
Dependent Claim
44 words
A thermosetting composition of claim 3 wherein said polymer of a conjugated diene is a silicon tetrachloride-coupled polybutadiene radial polymer, said silane coupling agent is gamma-methacryloxypropyltrimethoxysilane, said processing aid is zinc stearate, said organic peroxide is 2,5-dimethyl-2,5-bis(t-butylperoxy)-3-hexyne, and said silicate is acicular calcium metasilicate.
Claim 7
Dependent Claim
8 words
A molded and cured composition of claim 1.
Claim 8
Dependent Claim
8 words
A molded and cured composition of claim 2.
Claim 9
Dependent Claim
8 words
A molded and cured composition of claim 5.
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) | 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 |