US5024876A
Expired / Lapsed
US
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Reinforced plastic comprising poly(arylene sulfide sulfone) polymer containing ether groups matrix
Assignee: Phillips Petroleum Co
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Filing: 1990-02-28
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Granted: 1991-06-18
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Expires: 2010-02-28
Abstract
Abstract A reinforced plastic is provided which comprises a continuous long fiber reinforcing material in an ether group-containing poly(arylene sulfide sulfone) polymer matrix.
Inventors
- 👤 Rex L. Bobsein
- 👤 Mark L. Stone
- 👤 Jon F. Geibel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:50
CPC Classifications
C; C08; C08J; C08J5/00; C08J5/04; C08J5/0405; C08J5/042; C08G; C08G75/00; C08K; C08K7/00; C08K7/02; C08J2381/00; Y; Y10; Y10S; Y10S428/00; Y10S428/902; Y10T; Y10T428/00; Y10T428/30; Y10T442/00; Y10T442/20; Y10T442/2926; Y10T442/2984
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
23 words
A reinforced plastic comprising: (a) reinforcing material consisting essentially of continuous long fibers in (b) an ether group-containing poly(arylene sulfide sulfone) polymer matrix.
Claim 2
Dependent Claim
23 words
A reinforced plastic comprising: (a) reinforcing material consisting essentially of continuous long fibers in (b) an ether group-containing poly(arylene sulfide sulfone) polymer matrix.
Claim 3
Dependent Claim
78 words
A reinforced plastic according to claim 1 wherein said ether group-containing poly(arylene sulfide sulfone) polymer is prepared by a two-step process which comprises (a) reacting a polar organic compound, a dihaloaromatic sulfone, an aromatic diphenol, and an alkali metal base under polymerization conditions in a first step; and then (b) adding a sulfur source and an alkali metal carboxylate in a second step and continuing polymerization conditions to form a recoverable poly(arylene sulfide sulfone) polymer containing ether groups.
Claim 4
Dependent Claim
51 words
A reinforced plastic according to claim 2 wherein said alkali metal carboxylate is represented by R'COOM, where R' is a hydrocarbyl radical selected from the group consisting of alkyl, cycloalkyl, aryl and combinations thereof with carbon atoms in the range of 1 to about 20 and M is an alkali metal.
Claim 5
Dependent Claim
50 words
A reinforced plastic according to claim 2 wherein in step (b) water is further added to bring the total water, including water of hydration, present to an amount of at least about 3.5 moles per mole of sulfur source and greater than about 0.5 moles per mole polar organic compound.
Claim 6
Dependent Claim
47 words
A reinforced plastic according to claim 2 wherein in step (b) N-methyl-2-pyrrolidone and water are added in amounts such that the molar ratio of the moles total water including water of hydration to the total moles NMP is in the range of about 0.8 to about 1.5.
Claim 7
Dependent Claim
31 words
A reinforced plastic according to claim 2 wherein the aromatic diphenol is characterized by having an alkylene radical link between two phenolic groups and the dihalo aromatic sulfone is a bis(halophenyl)sulfone.
Claim 8
Dependent Claim
18 words
A reinforced plastic according to claim 6 wherein the aromatic diphenol is 2,2-bis(p-hydroxyphenyl)propane and the bis(halophenyl)sulfone is bis(p-chlorophenyl)sulfone.
Claim 9
Dependent Claim
17 words
A reinforced plastic according to claim 2 wherein the alkali metal base is an alkali metal carbonate.
Claim 10
Dependent Claim
15 words
A reinforced plastic according to claim 8 wherein the alkali metal carbonate is sodium carbonate.
Claim 11
Dependent Claim
18 words
A reinforced plastic according to claim 6 wherein the aromatic diphenol is 2,2-bis(hydroxyphenyl)1,1,1,3,3,3-hexafluoropropane and the bis(halophenyl)sulfone is bis(chlorophenyl)sulfone.
Claim 12
Dependent Claim
14 words
A reinforced plastic according to claim 7 wherein the sulfur source is sodium hydrosulfide.
Claim 13
Dependent Claim
14 words
A reinforced plastic according to claim 2 wherein the polar organic compound is N-methyl-2-pyrrolidone.
Claim 14
Dependent Claim
15 words
A reinforced plastic according to claim 1 wherein said continuous long fibers are carbon fibers.
Claim 15
Dependent Claim
15 words
A reinforced plastic according to claim 1 wherein said reinforcing material comprises a woven mat.
Claim 16
Dependent Claim
23 words
A reinforced plastic according to claim 1 wherein said ether group-containing poly(arylene sulfide sulfone) polymer comprises 20 to 50% of said reinforced plastic.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 1994-06-17 | 1994-12-17 | 1995-06-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-06-17 | 1998-12-17 | 1999-06-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-06-17 | 2002-12-17 | 2003-06-18 | $7700.00 | Window Closed / Lapsed |