EP0347827A2
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EP
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Epoxytriazine-capped polyphenylene ethers and method of preparation
Assignee: General Electric Co
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Filing: 1989-06-20
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Granted: —
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Expires: 2009-06-20
Abstract
Abstract Epoxytriazine-capped polyphenylene ethers are prepared by reaction of a polyphenylene ether with an epoxychlorotriazine such as diglycidyl chlorocyanurate, n-butyl glycidyl chlorocyanurate or mesityl glycidyl chlorocyanurate. The products undergo reaction with nucleophilic polymers such as polyamides and polyesters, to form copolymer-containing compositions which have excellent properties and which find utility as molding compositions and as compatibilizers for blends of similar polymers.
Inventors
- 👤 Sterling Bruce Brown
- 👤 Richard Charles Lowry
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-04 02:45
CPC Classifications
C; C08; C08L; C08L63/00; C08G; C08G59/00; C08G59/02; C08G59/04; C08G59/06; C08G59/063; C08G65/00; C08G65/34; C08G65/48; C08G65/485; C08L71/00; C08L71/08; C08L71/10; C08L71/12; C08L71/126; C08L67/00; C08L77/00; Y; Y10; Y10S; Y10S525/00; Y10S525/905
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
85 words
An epoxytriazine-capped polyphenylene ether composition comprising polymer molecules having end groups of the formula wherein: each Q¹ 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; each Q² is independently hydrogen, halogen, primary or secondary lower alkyl, phenyl, haloalkyl, hydrocarbonoxy or halohydrocarbonoxy as defined for Q¹; X is an alkyl, cycloalkyl or aromatic radical or R¹ is a divalent, alicyclic, heterocyclic or unsubstituted or substituted aromatic hydrocarbon radical.
Claim 2
Dependent Claim
85 words
An epoxytriazine-capped polyphenylene ether composition comprising polymer molecules having end groups of the formula wherein: each Q¹ 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; each Q² is independently hydrogen, halogen, primary or secondary lower alkyl, phenyl, haloalkyl, hydrocarbonoxy or halohydrocarbonoxy as defined for Q¹; X is an alkyl, cycloalkyl or aromatic radical or R¹ is a divalent, alicyclic, heterocyclic or unsubstituted or substituted aromatic hydrocarbon radical.
Claim 3
Dependent Claim
69 words
A composition according to claim 1 wherein the polyphenylene ether comprises a plurality of structural units having the formula wherein each Q¹ 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 Q² is independently hydrogen, halogen, primary or secondary lower alkyl, phenyl, haloalkyl, hydrocarbonoxy or halohydrocarbonoxy as defined for Q¹.
Claim 4
Dependent Claim
13 words
A composition according to claim 2 wherein R¹ is a lower alkylene radical.
Claim 5
Dependent Claim
14 words
A composition according to claim 3 wherein the polyphenylene ether is a poly(2,6-dimethyl-1,4-phenylene ether).
Claim 6
Dependent Claim
10 words
A composition according to claim 4 wherein R¹ is methylene.
Claim 7
Dependent Claim
16 words
A composition according to claim 5 wherein X is a lower alkyl or aromatic hydrocarbon radical.
Claim 8
Dependent Claim
13 words
A composition according to claim 6 wherein X is methyl, n-butyl or 2,4,6-trimethylphenyl.
Claim 9
Dependent Claim
11 words
A composition according to claim 5 wherein X has formula II.
Claim 10
Independent Claim
56 words
A method for preparing an epoxytriazine-capped polyphenylene ether composition which comprises 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 or aromatic radical or R¹ is a divalent aliphatic, alicyclic, heterocyclic or unsubstituted or substituted aromatic hydrocarbon radical.
Claim 11
Independent Claim
56 words
A method for preparing an epoxytriazine-capped polyphenylene ether composition which comprises 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 or aromatic radical or R¹ is a divalent aliphatic, alicyclic, heterocyclic or unsubstituted or substituted aromatic hydrocarbon radical.
Claim 12
Dependent Claim
14 words
A method according to claim 9 wherein the polyphenylene ether is a poly(2,6-dimethyl-1,4-phenylene ether).
Claim 13
Dependent Claim
37 words
A method according to claim 10 wherein the reaction is conducted in solution in a non-polar organic liquid at a temperature in the range of about 80-150°C, and the basic reagent is soluble in the organic liquid.
Claim 14
Dependent Claim
18 words
A method according to claim 11 wherein the basic reagent is pyridine and the organic liquid is toluene.
Claim 15
Dependent Claim
38 words
A method according to claim 12 wherein the amount of epoxychlorotriazine is in the range of about 1-20% by weight, based on polyphenylene ether, and the amount of basic reagent is about 1.0-1.1 equivalent per mole of chloroepoxytriazine.
Claim 16
Dependent Claim
46 words
A method according to claim 10 wherein the reaction is conducted interfacially at a temperature in the range of about 20-100°C, in a medium comprising water and a non-polar organic liquid, the basic reagent is a water-soluble base, and a phase transfer catalyst is also employed.
Claim 17
Dependent Claim
40 words
A method according to claim 14 wherein the basic reagent is sodium hydroxide, the organic liquid is toluene and the phase transfer catalyst is a tetraalkylammonium chloride wherein at least two alkyl groups per molecule contain about 5-20 carbon atoms.
Claim 18
Dependent Claim
50 words
A method according to claim 15 wherein the amount of epoxychlorotriazine is in the range of about 2-6% by weight based on polyphenylene ether, the ratio of equivalents of base to moles of epoxychlorotriazine is about 0.5-1.5:1, and the weight ratio of phase transfer catalyst to base is about 0.01-5.0.
Claim 19
Dependent Claim
17 words
A method according to claim 10 wherein the reaction mixture is subsequently neutralized with an acidic compound.
Claim 20
Dependent Claim
13 words
A method according to claim 17 wherein the acidic compound is carbon dioxide.
Claim 21
Dependent Claim
9 words
A composition prepared by the method of claim 9.
Claim 22
Dependent Claim
9 words
A composition prepared by the method of claim 11.
References Cited (Backward Citations)
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