US4824915A
Expired / Lapsed
US
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Functionalized polyphenylene ethers and blends with polyamides
Assignee: General Electric Co
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Filing: 1985-09-26
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Granted: 1989-04-25
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Expires: 2005-09-26
Abstract
Abstract Functionalized polyphenylene ether compositions are provided which are particularly useful for effecting compatibility for a blend of polyphenylene ether resin and a polyamide resin. The functionalized-polyphenylene ether is the reaction product of a polyphenylene ether polymer and a compound having the general formula (i)--Z--(ii), wherein group (i) is a polyphenylene ether-philic moiety such as acyl chloride, group (ii) is a polyamide-philic moiety such as dicarboxylic acid anhydride, and Z is a divalent hydrocarbon radical providing a covalent linkage between groups (i) and (ii). An example of the compound having general formula (i)--Z--(ii) is trimellitic anhydride acid chloride.
Inventors
- 👤 David F. Aycock
- 👤 Sai-Pei Ting
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 18:08
CPC Classifications
C; C08; C08L; C08L71/00; C08L71/08; C08L71/10; C08L71/12; C08G; C08G65/00; C08G65/34; C08G65/48; C08G65/485; C08L71/126; C08L77/00
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
118 words
A functionalized-polyphenylene ether composition comprising the reaction product of (a) a polyphenylene ether polymer; and (b) a compound having the general formula (i)--Z--(ii) which is a compound that contains in its molecule both group (i) which is at least one group having the formula ##STR17## where X is F, Cl, Br, I, OH, OR, or ##STR18## where R is H or an alkyl or aryl radical and group (ii) which is at least one carboxylic acid, acid anhydride, acid amide, imido, carboxylic acid ester, amino or hydroxyl group; wherein groups (i) and (ii) are covalently bonded through linkage Z which is a divalent hydrocarbon radical, provided that groups (i) and (ii) are not both simultaneously carboxylic acid groups.
Claim 2
Dependent Claim
118 words
A functionalized-polyphenylene ether composition comprising the reaction product of (a) a polyphenylene ether polymer; and (b) a compound having the general formula (i)--Z--(ii) which is a compound that contains in its molecule both group (i) which is at least one group having the formula ##STR17## where X is F, Cl, Br, I, OH, OR, or ##STR18## where R is H or an alkyl or aryl radical and group (ii) which is at least one carboxylic acid, acid anhydride, acid amide, imido, carboxylic acid ester, amino or hydroxyl group; wherein groups (i) and (ii) are covalently bonded through linkage Z which is a divalent hydrocarbon radical, provided that groups (i) and (ii) are not both simultaneously carboxylic acid groups.
Claim 3
Dependent Claim
32 words
A composition as in claim 1 wherein approximately 0.1 to 6 weight percent of the residue of the molecule containing groups (i) and (ii) is covalently bonded to the polyphenylene ether polymer.
Claim 4
Dependent Claim
103 words
A composition as in claim 1 wherein said polyphenylene ether is a homopolymer or copolymer having units with the repeating structural formula: ##STR19## wherein the oxygen ether atom of one unit is connected to the benzene nucleus of the next joining unit, and n is a positive integer of at least 50, and each Q is, independently, a monovalent substituent selected from a group consisting of hydrogen, halogen, hydrocarbon and hydrocarbonoxy groups free of a tertiary alpha-carbon atom, and halohydrocarbon and halohydrocarbonoxy groups free of a tertiary alpha-carbon and having at least 2 carbon atoms between the halogen atom and the phenyl nucleus.
Claim 5
Dependent Claim
15 words
A composition as in claim 3 wherein said polyphenylene ether is primarily poly(2,6-dimethyl-1,4, phenylene) ether.
Claim 6
Dependent Claim
37 words
A composition as in claim 1 wherein the compound of formula (i)--Z--(ii) is selected from the group consisting of chloroformylsuccinic anhydride, chloroethanoylsuccinic anhydride, trimellitic anhydride acid chloride, trimellitic anhydride acid acetic anhydride, and terephthalic acid acid chloride.
Claim 7
Dependent Claim
21 words
A composition as in claim 1 wherein the composition is a reaction product of trimellitic anhydride acid chloride and polyphenylene ether.
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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) | 1992-04-24 | 1992-10-24 | 1993-04-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-04-24 | 1996-10-24 | 1997-04-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-04-24 | 2000-10-24 | 2001-04-25 | $7700.00 | Window Closed / Lapsed |