Patent US5034157A successfully refreshed from Google Patents.
US5034157A
Expired / Lapsed
US
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Injection moldable composite
Assignee: ITT Inc
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Filing: 1990-03-16
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Granted: 1991-07-23
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Expires: 2010-03-16
Abstract
Abstract An injection moldable composite comprising an admixture of a polyetherketone such as polyetheretherketone (PEEK) matrix resin, a metal filler such as stainless steel fiber coated with a resin sizing soluble in the matrix resin, and glass fiber. The resulting molded form of the composite being electrically conductive and aluminum galvanic compatible.
Inventors
- 👤 Kenneth C. Merrell
- 👤 Gerald A. Rogers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 12:40
CPC Classifications
H; H01; H01B; H01B1/00; H01B1/20; H01B1/22; B; B29; B29C; B29C70/00; B29C70/88; B29C70/882; C; C08; C08K; C08K7/00; C08K7/02; C08K7/04; C08K7/06; C08K7/14; B29K; B29K2995/00; B29K2995/0003; B29K2995/0005
Claims Analysis
Total Claims: 39
Claim 1
Independent Claim
60 words
An injection moldable, electrically conductive, aluminum galvanic compatible composite comprising: approximatley 50 to 84 percent by weight of polyetherketone resins; approximately 10 to 40 percent by weight of a dispersion of glass fibers; and approximately 6 to 10 percent by weight of a dispersion of individual stainless steel fibers coated with a sizing soluble in and wettable by said resin.
Claim 2
Dependent Claim
60 words
An injection moldable, electrically conductive, aluminum galvanic compatible composite comprising: approximatley 50 to 84 percent by weight of polyetherketone resins; approximately 10 to 40 percent by weight of a dispersion of glass fibers; and approximately 6 to 10 percent by weight of a dispersion of individual stainless steel fibers coated with a sizing soluble in and wettable by said resin.
Claim 3
Dependent Claim
19 words
The composite according to claim 1 wherein said sizing is a polyetherketone resin sizing or a polysulfone resin sizing.
Claim 4
Dependent Claim
16 words
The composite according to claim 1 wherein said stainless steel fibers are 302 stainless steel fibers.
Claim 5
Dependent Claim
60 words
An injection moldable composite comprising: a polyetherketone thermoplastic molding base resin containing a dispersion of a mixture in an amount to form in percent by weight of the composite, approximately 30 percent by weight of glass fiber and 6 to 10 percent by weight of individual, stainless steel fiber coated with a sizing soluble in and wettable by said resin.
Claim 6
Dependent Claim
60 words
An injection moldable composite comprising: a polyetherketone thermoplastic molding base resin containing a dispersion of a mixture in an amount to form in percent by weight of the composite, approximately 30 percent by weight of glass fiber and 6 to 10 percent by weight of individual, stainless steel fiber coated with a sizing soluble in and wettable by said resin.
Claim 7
Dependent Claim
16 words
The composite of cliam 4 wherein said sizing is a PEEK resin or a polysulfone resin.
Claim 8
Dependent Claim
16 words
The composite of cliam 4 wherein said sizing is a PEEK resin or a polysulfone resin.
Claim 9
Dependent Claim
33 words
The composite of claim 5 wherein said sizing is present in an amount equal to approximately 5 to 15 percent by weight based on the total weight of the sized stainless steel fiber.
Claim 10
Dependent Claim
69 words
An injection moldable composite for forming a valve body that is electrically conductive and aluminum galvanic compatible, the composite forming the valve body comprising: approximatley 50 to 84 percent by weight of polyetherketone resin; approximately 10 to 40 percent of glass fibers; and approximately 6 to 10 percent by weight of individual stainless steel fibers coated with a sizing thereon that is soluble in and wettable by said resin.
Claim 11
Dependent Claim
69 words
An injection moldable composite for forming a valve body that is electrically conductive and aluminum galvanic compatible, the composite forming the valve body comprising: approximatley 50 to 84 percent by weight of polyetherketone resin; approximately 10 to 40 percent of glass fibers; and approximately 6 to 10 percent by weight of individual stainless steel fibers coated with a sizing thereon that is soluble in and wettable by said resin.
Claim 12
Dependent Claim
19 words
The composite according to claim 7 wherein said sizing is a polyetherketone resin sizing or a polysulfone resin sizing.
Claim 13
Dependent Claim
16 words
The composite according to claim 8 wherein said stainless steel fibers are 302 stainless steel fibers.
Claim 14
Dependent Claim
64 words
A valve body injection molded from a composite comprising: a polyetherketone thermoplastic molding base resin; and a mixture in an amount to form in percent by weight of the composite, approximately 30 percent by weight of glass fiber and 6 to 10 percent by weight of polyetherketone resins sized, individual stainless steel fiber, said sizing being soluble in and wettable by said base resin.
Claim 15
Dependent Claim
64 words
A valve body injection molded from a composite comprising: a polyetherketone thermoplastic molding base resin; and a mixture in an amount to form in percent by weight of the composite, approximately 30 percent by weight of glass fiber and 6 to 10 percent by weight of polyetherketone resins sized, individual stainless steel fiber, said sizing being soluble in and wettable by said base resin.
Claim 16
Dependent Claim
64 words
A mixture for an injection molded body that is electrically conductive, aluminum galvanic compatible, the mixture comprising: approximatley 50 to 84 percent by weight of polyetherketone thermoplastic molding resin; approximately 10 to 40 percent by weight glass fibers; and approximately 6 to 10 percent by weight resin sized, individual, stainless steel fibers, said sizing resin being soluble in and wettable by said molding resin.
Claim 17
Dependent Claim
64 words
A mixture for an injection molded body that is electrically conductive, aluminum galvanic compatible, the mixture comprising: approximatley 50 to 84 percent by weight of polyetherketone thermoplastic molding resin; approximately 10 to 40 percent by weight glass fibers; and approximately 6 to 10 percent by weight resin sized, individual, stainless steel fibers, said sizing resin being soluble in and wettable by said molding resin.
Claim 18
Dependent Claim
40 words
The mixture according to claim 11 wherein said stainless steel fibers are 300 type stainless steel fibers with sizing in an amount of 8 to 12 percent by weight based on the total weight of the sized stainless steel fibers.
Claim 19
Dependent Claim
64 words
An injection molded body being formed from a composite comprising: a polyetherketone thermoplastic molding base resin; and a mixture in an amount to form in percent by weight of the composite, approximately 30 percent by weight of glass fiber and 6 to 10 percent by weight of individual, sized stainless steel fiber coated with a sizing soluble in and wettable by said molding resin.
Claim 20
Dependent Claim
64 words
An injection molded body being formed from a composite comprising: a polyetherketone thermoplastic molding base resin; and a mixture in an amount to form in percent by weight of the composite, approximately 30 percent by weight of glass fiber and 6 to 10 percent by weight of individual, sized stainless steel fiber coated with a sizing soluble in and wettable by said molding resin.
Claim 21
Dependent Claim
17 words
The composite of cliam 13 wherein said sizing is PEEK resin sizing or a polysulfone resin sizing.
Claim 22
Dependent Claim
17 words
The composite of cliam 13 wherein said sizing is PEEK resin sizing or a polysulfone resin sizing.
Claim 23
Dependent Claim
17 words
The composite of cliam 14 wherein said stainless steel fiber is a 300 series stainless steel fiber.
Claim 24
Dependent Claim
17 words
The composite of cliam 14 wherein said stainless steel fiber is a 300 series stainless steel fiber.
Claim 25
Dependent Claim
59 words
An injection molded valve body, electrically conductive aluminum galvanic compatible, molded from a composite consisting of: a polyetherketone thermoplastic molding base resin; and a mixture of approximately 30 percent by weight of glass fiber and 8 percent by weight of resin sized, individual, stainless steel fibers coated with a resin sizing soluble in and wettable by said molding resin.
Claim 26
Dependent Claim
59 words
An injection molded valve body, electrically conductive aluminum galvanic compatible, molded from a composite consisting of: a polyetherketone thermoplastic molding base resin; and a mixture of approximately 30 percent by weight of glass fiber and 8 percent by weight of resin sized, individual, stainless steel fibers coated with a resin sizing soluble in and wettable by said molding resin.
Claim 27
Dependent Claim
50 words
An injection molding composition comprising in combination, an admixture of: approximatley 62 percent by weight of polyetherketone thermoplastic molding resin; approximately 30 percent by weight of glass fibers; and approximately 8 percent by weight of individual, stainles steel fibers sized with resin soluble in and wettable by said molding resin.
Claim 28
Dependent Claim
50 words
An injection molding composition comprising in combination, an admixture of: approximatley 62 percent by weight of polyetherketone thermoplastic molding resin; approximately 30 percent by weight of glass fibers; and approximately 8 percent by weight of individual, stainles steel fibers sized with resin soluble in and wettable by said molding resin.
Claim 29
Dependent Claim
72 words
A resin composition for forming an injection moldable, electrically conductive, aluminum glavanic-compatible composite comprising: approximately 50 to 84 percent by weight of PEEK matrix resin; approximately 10 to 40 percent by weight of glass reinforcement fibers dispersed therein; and approximately 6 to 10 percent by weight of sized, individual metal fibers dispered in said resin in an amount providing electrical conductivity, said sizing being soluble in and wettable by said matrix resin.
Claim 30
Dependent Claim
72 words
A resin composition for forming an injection moldable, electrically conductive, aluminum glavanic-compatible composite comprising: approximately 50 to 84 percent by weight of PEEK matrix resin; approximately 10 to 40 percent by weight of glass reinforcement fibers dispersed therein; and approximately 6 to 10 percent by weight of sized, individual metal fibers dispered in said resin in an amount providing electrical conductivity, said sizing being soluble in and wettable by said matrix resin.
Claim 31
Dependent Claim
29 words
A resin composition according to claim 17 in which the sized metal fibers are coated with a sizing resin capable of dispersing the metal fibers in the matrix resin.
Claim 32
Dependent Claim
18 words
A filled resin composition according to claim 19 in which the sizing is soluble in the matrix resin.
Claim 33
Dependent Claim
18 words
A filled resin composition according to claim 20 which the sizing resin is selected from polyetherketone or polysulfone.
Claim 34
Dependent Claim
38 words
A filled resin composition according to claim 21 in which the sizing resin is present on the metal fibers in an amount of from 5 percent by weight to 15 percent by weight based on the total weight.
Claim 35
Dependent Claim
16 words
A filled resin composition according to claim 22 in which the metal fiber is stainless steel.
Claim 36
Dependent Claim
29 words
A filled resin composition according to claim 23 in which the polyetherketone is present in the composition in an amount from at least 50 to 84 percent by weight.
Claim 37
Dependent Claim
28 words
A filled resin composition according to claim 24 in which the glass fibers are present in the composition in an amount from 10 to 40 percent by weight.
Claim 38
Dependent Claim
16 words
The composite according to claim 1 in which the resin is a polyarylene ether ketone resin.
Claim 39
Dependent Claim
18 words
The composite according to claim 26 in which the resin has a repeating unit of the formula: ##STR2##
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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) | 1994-07-22 | 1995-01-21 | 1995-07-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-07-22 | 1999-01-21 | 1999-07-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-07-22 | 2003-01-21 | 2003-07-23 | $7700.00 | Window Closed / Lapsed |