EP0349717A2
Expired / Lapsed
EP
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Polyphenylene ether-polyester copolymers from epoxytriazine-capped polyphenylene ethers
Assignee: General Electric Co
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Filing: 1989-04-13
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Granted: —
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Expires: 2009-04-13
Abstract
Abstract 0 Polyphenylene ether-polyester copolymer compositions are prepared by the reaction of an epoxytriazine-capped polyphenylene ether with a polyester. The copolymers 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 Bruce Brown
- 👤 Richard Charles Lowry
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-04 04:31
CPC Classifications
C; C08; C08G; C08G81/00; C08G65/00; C08G65/34; C08G65/48; C08G65/485
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
50 words
A composition comprising polyphenylene ether-polyester copolymers prepared by the reaction of an epoxytriazine-capped polyphenylene ether with at least one polyester comprising structural units of the formula wherein each R 4 is independently a divalent aliphatic, alicyclic or aromatic hydrocarbon radical or polyoxyalkylene radical and A' is a divalent aromatic radical.
Claim 2
Dependent Claim
50 words
A composition comprising polyphenylene ether-polyester copolymers prepared by the reaction of an epoxytriazine-capped polyphenylene ether with at least one polyester comprising structural units of the formula wherein each R 4 is independently a divalent aliphatic, alicyclic or aromatic hydrocarbon radical or polyoxyalkylene radical and A' is a divalent aromatic radical.
Claim 3
Dependent Claim
73 words
A composition according to claim 1 wherein the polyphenylene ether comprises a plurality of structural units having the formula 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 4
Dependent Claim
59 words
A composition according to claim 2 which comprises molecules containing at least one polyphenylene ether-polyester linkage of the formula wherein R 1 is a divalent aliphatic, alicyclic, heterocyclic or unsubstituted or substituted aromatic hydrocarbon radical; Z 1 is an alkyl, cycloalkyl or aromatic radical, or and Z 2 is OH and Z 3 is and z 3 is OH.
Claim 5
Dependent Claim
17 words
A composition according to claim 3 wherein A 1 is p- or m-phenylene or a mixture thereof.
Claim 6
Dependent Claim
14 words
A composition according to claim 4 wherein R 1 is a lower alkylene radical.
Claim 7
Dependent Claim
13 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
15 words
A composition according to claim 6 wherein R 1 is methylene and A' is p-phenylene.
Claim 9
Dependent Claim
17 words
A composition according to claim 7 wherein Z 1 is a lower alkyl or aromatic hydrocarbon radical.
Claim 10
Dependent Claim
13 words
A composition according to claim 8 wherein Z 1 is n-butyl or 2,4,6-trimethylphenyl.
Claim 11
Dependent Claim
9 words
A composition according to claim 7 wherein Z 1
Claim 12
Dependent Claim
11 words
A composition according to claim 7 wherein R 4 is ethylene.
Claim 13
Dependent Claim
11 words
A composition according to claim 7 wherein R 4 is tetramethylene.
Claim 14
Dependent Claim
11 words
A composition according to claim 7 wherein R 4- is polyoxytetramethylene.
Claim 15
Dependent Claim
13 words
A composition according to claim 7 which also contains an elastomeric impact modifier.
Claim 16
Dependent Claim
35 words
A composition according to claim 14 wherein the impact modifier is a triblock copolymer wherein the end blocks are derived from styrene and the midblock is derived from at least one of isoprene and butadiene.
Claim 17
Dependent Claim
19 words
A composition according to claim 15 wherein the aliphatic unsaturation in the midblock has been removed by selective hydrogenation.
Claim 18
Dependent Claim
30 words
A composition according to claim 7 wherein the polyester also contains units of the formula wherein R 5 is a polyoxyalkylene radical and A 2 is a trivalent aromatic radical.
Claim 19
Dependent Claim
99 words
A composition comprising polyphenylene ether-polyester copolymers prepared by the reaction of: at least one polyester comprising structural units of the formula 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; with a composition prepared by contacting under reactive conditions, in the presence of a basic reagent, at least one polyphenylene ether with an epoxychlorotriazine of the formula wherein: X is an alkyl, cycloalkyl or aromatic radical or and R 1 is a divalent aliphatic, alicyclic, heterocyclic or unsubstituted or substituted aromatic hydrocarbon radical.
Claim 20
Dependent Claim
99 words
A composition comprising polyphenylene ether-polyester copolymers prepared by the reaction of: at least one polyester comprising structural units of the formula 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; with a composition prepared by contacting under reactive conditions, in the presence of a basic reagent, at least one polyphenylene ether with an epoxychlorotriazine of the formula wherein: X is an alkyl, cycloalkyl or aromatic radical or and R 1 is a divalent aliphatic, alicyclic, heterocyclic or unsubstituted or substituted aromatic hydrocarbon radical.
Claim 21
Dependent Claim
25 words
A composition according to claim 18 wherein A 1 is p- or m-phenylene or a mixture thereof and the polyphenylene ether is a poly(2,6-dimethyl-1,4-phenylene ether).
Claim 22
Dependent Claim
16 words
A composition according to claim 19 wherein R 1 is methylene and A 1 is p-phenylene.
Claim 23
Dependent Claim
13 words
A composition according to claim 20 which also contains an elastomeric impact modifier.
References Cited (Backward Citations)
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