US4451601A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Glass-filled polyarylene sulfide compositions containing organosilanes
Assignee: Phillips Petroleum Co
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Filing: 1983-02-09
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Granted: 1984-05-29
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Expires: 2003-02-09
Abstract
Abstract Properties such as flow rate and hydrolytic stability of glass-filled polyarylene sulfide compositions can be modified by the addition of certain organosilanes.
Inventors
- 👤 Jennings P. Blackwell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:02
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/54
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
59 words
A composition comprising: glass-filled polyarylene sulfide and at least one organosilane in an amount sufficient to decrease the flow rate of said polyarylene sulfide upon heating of the composition to a temperature at least about the melting point of said polyarylene sulfide; wherein said at least one organosilane is selected from the group consisting of 1-Benzylchloro-2-trimethoxysilylethane, 2-p-Sulfoxylazylethyltrimethoxysilane, and (p-Aminophenyl)trimethoxysilane.
Claim 2
Dependent Claim
59 words
A composition comprising: glass-filled polyarylene sulfide and at least one organosilane in an amount sufficient to decrease the flow rate of said polyarylene sulfide upon heating of the composition to a temperature at least about the melting point of said polyarylene sulfide; wherein said at least one organosilane is selected from the group consisting of 1-Benzylchloro-2-trimethoxysilylethane, 2-p-Sulfoxylazylethyltrimethoxysilane, and (p-Aminophenyl)trimethoxysilane.
Claim 3
Dependent Claim
19 words
A composition in accordance with claim 1 wherein said organosilane is 1-Benzylchloro-2-trimethoxysilylethane and said polyarylene sulfide is polyphenylene sulfide.
Claim 4
Dependent Claim
19 words
A composition in accordance with claim 1 wherein said organosilane is 2-p-Sulfoxylazylethyltrimethoxysilane and said polyarylene sulfide is polyphenylene sulfide.
Claim 5
Dependent Claim
19 words
A composition in accordance with claim 1 wherein said organosilane is (p-Aminophenyl)trimethoxysilane and said polyarylene sulfide is polyphenylene sulfide.
Claim 6
Dependent Claim
24 words
A composition according to claim 1 wherein the amount of said organosilane is about 0.2 to about 2 weight percent based upon total composition.
Claim 7
Independent Claim
72 words
A method for decreasing the flow rate of a glass-filled polyarylene sulfide, said method comprising: (a) combining glass, polyarylene sulfide and at least one organosilane selected from the group consisting of 1-Benzylchloro-2-trimethoxysilylethane, 2-p-Sulfoxylazylethyltrimethoxysilane, and (p-Aminophenyl)trimethoxysilane to produce a mixture; and (b) subjecting said mixture to a temperature of at least about the melting point of said polyarylene sulfide for a time sufficient to effect at least a partial cure of said mixture.
Claim 8
Independent Claim
72 words
A method for decreasing the flow rate of a glass-filled polyarylene sulfide, said method comprising: (a) combining glass, polyarylene sulfide and at least one organosilane selected from the group consisting of 1-Benzylchloro-2-trimethoxysilylethane, 2-p-Sulfoxylazylethyltrimethoxysilane, and (p-Aminophenyl)trimethoxysilane to produce a mixture; and (b) subjecting said mixture to a temperature of at least about the melting point of said polyarylene sulfide for a time sufficient to effect at least a partial cure of said mixture.
Claim 9
Dependent Claim
14 words
A method in accordance with claim 6 wherein said polyarylene sulfide is polyphenylene sulfide.
Claim 10
Dependent Claim
21 words
A method in accordance with claim 7 wherein said mixture is extruded at a temperature of at least about 550° F.
Claim 11
Dependent Claim
27 words
A method in accordance with claim 7 wherein the weight percentage, based upon total composition, of said at least one organosilane is about 0.2 to about 2.
Claim 12
Dependent Claim
12 words
A method in accordance with claim 7 wherein said organosilane is 1-Benzylchloro-2-trimethoxysilylethane.
Claim 13
Dependent Claim
12 words
A method in accordance with claim 7 wherein said organosilane is 2-p-Sulfoxylazylethyltrimethoxysilane.
Claim 14
Dependent Claim
12 words
A method in accordance with claim 7 wherein said organosilane is (p-Aminophenyl)trimethoxysilane.
Claim 15
Dependent Claim
9 words
A composition produced by the method of claim 6.
Claim 16
Dependent Claim
9 words
A composition produced by the method of claim 7.
Claim 17
Dependent Claim
9 words
A composition produced by the method of claim 8.
Claim 18
Dependent Claim
9 words
A composition produced by the method of claim 9.
Claim 19
Dependent Claim
9 words
A composition produced by the method of claim 10.
Claim 20
Dependent Claim
9 words
A composition produced by the method of claim 11.
Claim 21
Dependent Claim
9 words
A composition produced by the method of claim 12.
References Cited (Backward Citations)
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Cited
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Cited
US4244860A
Cited
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Cited
US4350786A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-05-29 | 1987-11-28 | 1988-05-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-05-29 | 1991-11-28 | 1992-05-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-05-29 | 1995-11-28 | 1996-05-29 | $7700.00 | Window Closed / Lapsed |