US5089566A
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Compositions comprising polyphenylene ether-polyester copolymers from epoxytriazine-capped polyphenylene ethers
Assignee: General Electric Co
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Filing: 1989-05-15
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Granted: 1992-02-18
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Expires: 2009-05-15
Abstract
Abstract Copolymer-containing compositions are prepared by the reaction of an epoxytriazine-capped polyphenylene ether with another polymer containing carboxy end groups, especially a polyester. The compositions have excellent properties and find utility as molding compositions and as compatibilizers for blends of similar polymers. Suitable epoxytriazine-capped polyphenylene ethers may be prepared by reaction of a polyphenylene ether with an epoxychlorotriazine such as diglycidyl chlorocyanurate, n-butyl glycidyl chlorocyanurate or mesityl glycidyl chlorocyanurate.
Inventors
- 👤 Sterling B. Brown
- 👤 Richard C. Lowry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 06:51
CPC Classifications
C; C08; C08G; C08G65/00; C08G65/34; C08G65/48; C08G65/485; C08G81/00; Y; Y10; Y10S; Y10S525/00; Y10S525/905
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
25 words
A composition comprising polyphenylene etherpolyester copolymers prepared by the reaction of an epoxytriazine-capped polyphenylene ether with at least one condensation polymer containing carboxy end groups.
Claim 2
Dependent Claim
25 words
A composition comprising polyphenylene etherpolyester copolymers prepared by the reaction of an epoxytriazine-capped polyphenylene ether with at least one condensation polymer containing carboxy end groups.
Claim 3
Dependent Claim
14 words
A composition according to claim 1 wherein the condensation polymer is an elastomeric copolyesteramide.
Claim 4
Dependent Claim
45 words
A composition according to claim 1 wherein the condensation polymer is a polyester comprising structural units of the formula ##STR14## wherein each R 4 is independently a divalent aliphatic, alicyclic or aromatic hydrocarbon radical or polyoxyalkylene radical and A 1 is a divalent aromatic radical.
Claim 5
Dependent Claim
74 words
A composition according to claim 2 wherein the polyphenylene ether comprises a plurality of structural units having the formula ##STR15## wherein each Q 1 is independently halogen, primary or secondary lower alkyl, phenyl, haloalkyl, aminoalkyl, 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 6
Dependent Claim
17 words
A composition according to claim 4 wherein A 1 is p- or m-phenylene or a mixture thereof.
Claim 7
Dependent Claim
14 words
A composition according to claim 5 wherein the polyphenylene ether is a poly(2,6-dimethyl-1,4-phenylene ether).
Claim 8
Dependent Claim
16 words
A composition according to claim 6 wherein R 1 is methylene and A 1 is p-phenylene.
Claim 9
Dependent Claim
11 words
A composition according to claim 7 wherein R 4 is ethylene.
Claim 10
Dependent Claim
11 words
A composition according to claim 7 wherein R 4 is tetramethylene.
Claim 11
Dependent Claim
11 words
A composition according to claim 7 wherein R 4 is polyoxytetramethylene.
Claim 12
Dependent Claim
31 words
A composition according to claim 7 wherein the polyester also contains units of the formula ##STR16## wherein R 5 is a polyoxyalkylene radical and A 2 is a trivalent aromatic radical.
References Cited (Backward Citations)
US4732937A
Cited
US4895945A
Cited
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| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 7.5 Years (Year 8) | 1999-02-17 | 1999-08-19 | 2000-02-18 | $3760.00 | Window Closed / Lapsed |
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