US4487879A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Filled arylene sulfide polymer compositions containing (a) glass filter in combination with (b) a mineral filler
Assignee: Phillips Petroleum Co
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Filing: 1982-09-20
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Granted: 1984-12-11
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Expires: 2002-09-20
Abstract
Abstract A filled arylene sulfide polymer composition is provided in which at least 30 weight percent of the total composition is arylene sulfide polymer, up to about 65 weight percent of the total composition is filler material chosen from glass filler and at least one mineral filler and containing a property modifying amount of up to about 12 weight percent of the total composition of a solid, resinous butadiene/styrene block compolymer having the vinyl content in the range of about 10 to about 14 percent based on the polybutadiene segment of the copolymer. The physical characteristics of a filled arylene sulfide polymer composition containing at least 30 weight percent of the total composition of arylene sulfide polymer and up to about 65 weight percent of the total composition of fillers comprising glass fibers and at least one mineral filler are improved by the addition of a property modifying amount of up to about 12 weight percent of the total composition of a solid, resinous butadiene/styrene block copolymer having a vinyl content in the range of about 10 to about 14 percent based on the polybutadiene segment of the copolymer.
Inventors
- 👤 Donald G. Needham
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:36
CPC Classifications
C; C08; C08L; C08L81/00; C08L81/02; C08K; C08K3/00; C08K3/01; C08K3/013; C08K7/00; C08K7/02; C08K7/04; C08K7/14; C08L53/00; C08L53/02
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
88 words
A filled arylene sulfide composition comprising (a) at least 30 weight percent of the total composition of arylene sulfide polymer, (b) up to about 65 weight percent of the total composition of fillers comprising glass filler and at least one mineral filler and (c) a property modifying amount of up to about 12 weight percent of the total composition of a solid, resinous butadiene/styrene block copolymer having a vinyl content in a range of about 10 to about 14 percent based on the polybutadiene segment of the polymer.
Claim 2
Dependent Claim
88 words
A filled arylene sulfide composition comprising (a) at least 30 weight percent of the total composition of arylene sulfide polymer, (b) up to about 65 weight percent of the total composition of fillers comprising glass filler and at least one mineral filler and (c) a property modifying amount of up to about 12 weight percent of the total composition of a solid, resinous butadiene/styrene block copolymer having a vinyl content in a range of about 10 to about 14 percent based on the polybutadiene segment of the polymer.
Claim 3
Dependent Claim
20 words
A composition of claim 1 wherein said fillers comprise about 55 to about 65 weight percent of the total composition.
Claim 4
Dependent Claim
31 words
A composition of claim 1 or 2 wherein said fillers comprise glass fiber and mineral filler in a ratio of about 1:3 to about 3:1 of glass filler to mineral filler.
Claim 5
Dependent Claim
22 words
A composition of claim 1 or 2 wherein said mineral filler is chosen from among calcium carbonate, calcium sulfate, talc, and mica.
Claim 6
Dependent Claim
20 words
A composition of claim 3 wherein said mineral filler is chosen from among calcium carbonate, calcium sulfate, talc, and mica.
Claim 7
Independent Claim
97 words
A method for improving physical characteristics of a filled arylene sulfide composition containing at least 30 weight percent of the total composition of arylene sulfide polymer and up to about 65 weight percent of the total composition of fillers comprising glass fillers and at least one mineral filler said method comprising admixing therewith a property modifying amount of up to about 12 weight percent of the total composition of a solid, resinous butadiene/styrene block copolymer having a vinyl content in the range of about 10 to about 14 percent based on the polybutadiene segment of the copolymer.
Claim 8
Independent Claim
97 words
A method for improving physical characteristics of a filled arylene sulfide composition containing at least 30 weight percent of the total composition of arylene sulfide polymer and up to about 65 weight percent of the total composition of fillers comprising glass fillers and at least one mineral filler said method comprising admixing therewith a property modifying amount of up to about 12 weight percent of the total composition of a solid, resinous butadiene/styrene block copolymer having a vinyl content in the range of about 10 to about 14 percent based on the polybutadiene segment of the copolymer.
Claim 9
Dependent Claim
22 words
A method of claim 6 wherein said filler is comprised of about 55 to about 65 weight percent of the total composition.
Claim 10
Dependent Claim
33 words
A method of claim 6 or 7 wherein said filler is comprised of glass filler and mineral filler in a ratio of about 1:3 to about 3:1 of glass filler to mineral filler.
Claim 11
Dependent Claim
22 words
A method of claim 1 or 2 wherein said mineral filler is chosen from among calcium carbonate, calcium sulfate, talc, and mica.
Claim 12
Dependent Claim
20 words
A method of claim 8 wherein said mineral filler is chosen from among calcium carbonate, calcium sulfate, talc, and mica.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-12-11 | 1988-06-11 | 1988-12-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-12-11 | 1992-06-11 | 1992-12-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-12-11 | 1996-06-11 | 1996-12-11 | $7700.00 | Window Closed / Lapsed |