US4816515A
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Impact modified polyphenylene ether interpolymer resins
Assignee: General Electric Co
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Filing: 1987-04-13
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Granted: 1989-03-28
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Expires: 2007-04-13
Abstract
Abstract Compositions with enhanced impact strength, solvent and thermal aging resistance are prepared by interpolymerizing polyphenylene ether resins functionalized with acids or anhydrides, e.g., fumaric acid, and rubbers, e.g., EPDM rubbers, grafted with glycidyl acrylates or methacrylates.
Inventors
- 👤 Kurt A. Weiss
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 23:59
CPC Classifications
C; C08; C08L; C08L51/00; C08L51/04; C08G; C08G65/00; C08G65/34; C08G65/48; C08G65/485; C08L71/00; C08L71/08; C08L71/10; C08L71/12; C08L71/126; Y; Y10; Y10S; Y10S525/00; Y10S525/905
Claims Analysis
Total Claims: 34
Claim 1
Independent Claim
134 words
A composition comprising the interpolymerization product of: (a) a polyphenylene ether resin functionalized with a reactive compound selected from the group consisting of a dicarboxylic acid, the corresponding anhydride, and a mixture thereof; and (b) an effective amount of an impact improving rubbery polymer grafted with (i) a compound selected from the group consisting of glycidyl methacrylate, glycidyl acrylate, and a mixture thereof, or (ii) a compound selected from the group consisting of glycidyl methacrylate, glycidyl acrylate, and a mixture thereof in further combination with a compound selected from the group consisting of a C 1 -C 18 alkyl methacrylate, a C 1 -C 18 alkyl acrylate and a mixture thereof said interpolymerization comprises melt blending the functionalized polyphenylene ether resin component (a) and the rubbery polymer (b) unitl the reaction is substantially complete.
Claim 2
Dependent Claim
134 words
A composition comprising the interpolymerization product of: (a) a polyphenylene ether resin functionalized with a reactive compound selected from the group consisting of a dicarboxylic acid, the corresponding anhydride, and a mixture thereof; and (b) an effective amount of an impact improving rubbery polymer grafted with (i) a compound selected from the group consisting of glycidyl methacrylate, glycidyl acrylate, and a mixture thereof, or (ii) a compound selected from the group consisting of glycidyl methacrylate, glycidyl acrylate, and a mixture thereof in further combination with a compound selected from the group consisting of a C 1 -C 18 alkyl methacrylate, a C 1 -C 18 alkyl acrylate and a mixture thereof said interpolymerization comprises melt blending the functionalized polyphenylene ether resin component (a) and the rubbery polymer (b) unitl the reaction is substantially complete.
Claim 3
Dependent Claim
42 words
A composition as defined in claim 1 wherein said dicarboxylic acid or anhydride is selected from the group consisting of fumaric acid, maleic acid, maleic anhydride, itaconic acid, itaconic anhydride, citraconic acid, citraconic anhydride, and a mixture of any of the foregoing.
Claim 4
Dependent Claim
26 words
A composition as defined in claim 1 wherein said rubbery polymer is selected from the group consisting of natural rubber, synthetic rubber and a mixture thereof.
Claim 5
Dependent Claim
23 words
A composition as defined in claim 3 wherein said rubbery polymer is a synthetic terpolymer comprising units of ethylene, propylene and a diene.
Claim 6
Dependent Claim
107 words
A composition as defined in claim 1, wherein the polyphenylene ether resin (a) is a homopolymer or copolymer containing structural units of the formula: ##STR8## in which for each of these units independently each Q 1 is hydrogen, halogen, primary or secondary lower alkyl having up to seven carbon atoms, phenyl, aminoalkyl or haloalkyl wherein at least two carbon atoms separate the halogen atom from the benzene ring, hydrocarbonoxy, or halohydrocarbonoxy wherein at least two carbon atoms separate the halogen and oxygen atoms; and each Q 2 is independently hydrogen, halogen, primary or secondary lower alkyl, phenyl, haloalkyl, hydrocarbonoxy or halohydrocarbonoxy as defined for Q 1 .
Claim 7
Dependent Claim
15 words
A composition as defined in claim 1, wherein the polyphenylene ether resin is poly(2,6-dimethyl-1,4-phenylene ether).
Claim 8
Dependent Claim
28 words
A composition as defined in claim 6, wherein the poly(2,6-dimethyl-1,4-phenylene ether) has an intrinsic viscosity of about 0.4 to 0.6 deciliters per gram in chloroform at 25° C.
Claim 9
Dependent Claim
16 words
A composition as defined in claim 1, wherein said dicarboxylic acid or anhydride comprises fumaric acid.
Claim 10
Dependent Claim
31 words
A composition as defined claim 4, wherein the grafted terpolymer is derived from approximately 45 to 70 mole percent ethylene, approximately 30-55 mole percent propylene and a minor amount of 5-ethylidene-2-norbornene.
Claim 11
Dependent Claim
32 words
A composition as defined in claim 1, wherein said acid, anhydride or mixture thereof comprises from about 0.1 to 2.5% by weight based on the weight of the polyphenylene ether resin (a).
Claim 12
Dependent Claim
32 words
A composition as defined in claim 10, wherein said acid, anhydride or mixture thereof comprises from about 0.5 to 1.25% by weight based on the weight of the polyphenylene ether resin (a).
Claim 13
Dependent Claim
33 words
A composition as defined in claim 1 wherein the glycidyl ester grafted rubbery polymer (b) comprises from about 5 to about 20 percent by weight based on the total of (a) and (b).
Claim 14
Dependent Claim
31 words
A composition as defined in claim 12 wherein the grafted rubbery polymer (b) comprises from about 7.5 to about 15.0 percent by weight based on the total of (a) and (b).
Claim 15
Independent Claim
149 words
A method for providing a composition adapted to produce a thermoshaped article having high impact strength and improved solvent resistance comprising (a) a polyphenylene ether resin functionalized with a reactive compound selected from a dicarboxylic acid or the corresponding anhydride or a mixture thereof, said method comprising adding (b) an effective amount of an impact improving rubbery polymer grafted with (i) a compound selected from the group consisting of glycidyl methacrylate, glycidyl acrylate, and a mixture thereof, or (ii) a compound selected from the group consisting of a glycidyl methacrylate, glycidyl acrylate, and a mixture thereof in further combination with a compound selected from the group consisting of a C 1 -C 18 alkyl methacrylate, a C 1 -C 18 alkyl acrylate and a mixture thereof said method comprises melt blending the functionalized polyphenylene ether resin component (a) and the rubbery polymer (b) until the reaction is substantially complete.
Claim 16
Independent Claim
149 words
A method for providing a composition adapted to produce a thermoshaped article having high impact strength and improved solvent resistance comprising (a) a polyphenylene ether resin functionalized with a reactive compound selected from a dicarboxylic acid or the corresponding anhydride or a mixture thereof, said method comprising adding (b) an effective amount of an impact improving rubbery polymer grafted with (i) a compound selected from the group consisting of glycidyl methacrylate, glycidyl acrylate, and a mixture thereof, or (ii) a compound selected from the group consisting of a glycidyl methacrylate, glycidyl acrylate, and a mixture thereof in further combination with a compound selected from the group consisting of a C 1 -C 18 alkyl methacrylate, a C 1 -C 18 alkyl acrylate and a mixture thereof said method comprises melt blending the functionalized polyphenylene ether resin component (a) and the rubbery polymer (b) until the reaction is substantially complete.
Claim 17
Dependent Claim
46 words
A composition as defined in claim 14 wherein said dicarboxylic acid or anhydride is selected from fumaric acid, maleic acid, maleic anhydride, itaconic acid, itaconic anhydride, citraconic acid, citraconic anhydride, trimellitic acid, trimellitic anhydride, trimellitic anhydride acid chloride, or a mixture of any of the foregoing.
Claim 18
Dependent Claim
22 words
A composition as defined in claim 14 wherein said rubbery polymer is selected from natural rubber, synthetic rubber or a mixture thereof.
Claim 19
Dependent Claim
24 words
A composition as defined in claim 16 wherein said rubbery polymer is a synthetic rubber terpolymer comprising units of ethylene, propylene and a diene.
Claim 20
Dependent Claim
107 words
A method as defined in claim 14, wherein the polyphenylene ether resin (a) is a homopolymer or copolymer containing structural units of the formula: ##STR9## in which for each of these units independently each Q 1 is hydrogen, halogen, primary or secondary lower alkyl having up to seven carbon atoms, phenyl, aminoalkyl or haloalkyl wherein at least two carbon atoms separate the halogen atom from the benzene ring, hydrocarbonoxy, or halohydrocarbonoxy wherein at least two carbon atoms separate the halogen and oxygen atoms; and each Q 2 is independently hydrogen, halogen, primary or secondary lower alkyl, phenyl, haloalkyl, hydrocarbonoxy or halohydrocarbonoxy as defined for Q 1 .
Claim 21
Dependent Claim
15 words
A method as defined in claim 14, wherein the polyphenylene ether resin is poly(2,6-dimethyl-1,4phenylene ether).
Claim 22
Dependent Claim
28 words
A method as defined in claim 19, wherein the poly(2,6-dimethyl-1,4-phenylene ether) has an intrinsic viscosity of about 0.4 to 0.6 deciliters per gram in chloroform at 25° C.
Claim 23
Dependent Claim
16 words
A method as defined in claim 14, wherein said dicarboxylic acid or anhydride comprises fumaric acid.
Claim 24
Dependent Claim
31 words
A method as defined claim 17 wherein the grafted terpolymer is derived from approximately 45 to 70 mole percent ethylene, approximately 30-55 mole percent propylene and a minor amount of 5-ethylidene-2-norbornene.
Claim 25
Dependent Claim
32 words
A method as defined in claim 14, wherein said acid, anhydride or mixture thereof comprises from about 0.1 to 2.5% by weight based on the weight of the polyphenylene ether resin (a).
Claim 26
Dependent Claim
32 words
A method as defined in claim 23, wherein said acid, anhydride or mixture thereof comprises from about 0.5 to 1.25% by weight based on the weight of the polyphenylene ether resin (a).
Claim 27
Dependent Claim
33 words
A method as defined in claim 14 wherein the glycidyl ester grafted rubbery polymer (b) comprises from about 5 to about 20 percent by weight based on the total of (a) and (b).
Claim 28
Dependent Claim
31 words
A method as defined in claim 25 wherein the grafted rubbery polymer (b) comprises from about 7.5 to about 15.0 percent by weight based on the total of (a) and (b).
Claim 29
Dependent Claim
9 words
An article thermoformed from the composition of claim 1.
Claim 30
Dependent Claim
126 words
A composition comprising the interpolymerization product of: (a) a polyphenylene ether resin functionalized with a reactive compound selected from the group consisting of fumaric acid, maleic acid, maleic anhydride, itaconic acid, itaconic anhydride, citraconic acid, citraconic anhydride, and a mixture of any of the following; and (b) an effective amount of an impact improving rubbery terpolymer having rubber diene segments grafted with (i) a compound selected from the group consisting of glycidyl methacrylate, glycidyl acrylate, and a mixture thereof, or (ii) a compound selected from the group consisting of glycidyl methacrylate, glycidyl acrylate, and a mixture thereof, in further combination with compound selected from the group consisting of a C 1 -C 18 alkyl methacrylate, a C 1 -C 18 alkyl acrylate, and a mixture thereof.
Claim 31
Dependent Claim
126 words
A composition comprising the interpolymerization product of: (a) a polyphenylene ether resin functionalized with a reactive compound selected from the group consisting of fumaric acid, maleic acid, maleic anhydride, itaconic acid, itaconic anhydride, citraconic acid, citraconic anhydride, and a mixture of any of the following; and (b) an effective amount of an impact improving rubbery terpolymer having rubber diene segments grafted with (i) a compound selected from the group consisting of glycidyl methacrylate, glycidyl acrylate, and a mixture thereof, or (ii) a compound selected from the group consisting of glycidyl methacrylate, glycidyl acrylate, and a mixture thereof, in further combination with compound selected from the group consisting of a C 1 -C 18 alkyl methacrylate, a C 1 -C 18 alkyl acrylate, and a mixture thereof.
Claim 32
Dependent Claim
19 words
A composition as defined in claim 28 wherein said rubbery terpolymer comprises units of ethylene, propylene and a diene.
Claim 33
Dependent Claim
15 words
A composition as defined in claim 29 wherein the polyphenylene ether resin is poly(2,6-dimethyl-1,4-phenylene ether).
Claim 34
Dependent Claim
14 words
A composition as defined in claim 30 wherein said reactive compound comprises fumaric acid.
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) | 1992-03-27 | 1992-09-26 | 1993-03-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-03-27 | 1996-09-26 | 1997-03-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-03-27 | 2000-09-26 | 2001-03-28 | $7700.00 | Window Closed / Lapsed |