EP0446682A1
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Method for preparing hydroxyalkyl-functionalized polyphenylene ether
Assignee: Mitsubishi Chemical Corp
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Filing: 1991-02-21
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Granted: —
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Expires: 2011-02-21
Abstract
Abstract Disclosed is a method for preparing a hydroxyalkyl-functionalized polyphenylene ether which comprises reacting a polyphenylene ether represented by the formula: wherein Q₁ each represents a halogen atom, a primary or secondary alkyl group, a phenyl group, an aminoalkyl group, a hydrocarbonoxy group or a halohydrocarbonoxy group; Q₂ each represents a hydrogen atom, a halogen atom, a primary or secondary alkyl group, a phenyl group, a haloalkyl group, a hydrocarbonoxy group or a halohydrocarbonoxy group; and m is an integer of 10 or more, with a functionalizing agent in the presence or absence of an organic solvent capable of dissolving the polyphenylene ether and in the presence of a basic catalyst.
Inventors
- 👤 Haruo C/O Yokkaichi Research Center Ohmura
- 👤 Mitsutoshi C/O Yokkaichi Research Center Aritomo
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-30 00:01
CPC Classifications
C; C08; C08G; C08G65/00; C08G65/34; C08G65/48; C08G65/485; C08G59/00; C08G59/02; C08G59/04
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
108 words
A method for preparing a hydroxyalkyl-functionalized polyphenylene ether which comprises reacting a polyphenylene ether represented by the formula: wherein Q₁ each represents a halogen atom, a primary or secondary alkyl group, a phenyl group, an aminoalkyl group, a hydrocarbonoxy group or a halohydrocarbonoxy group; Q₂ each represents a hydrogen atom, a halogen atom, a primary or secondary alkyl group, a phenyl group, a haloalkyl group, a hydrocarbonoxy group or a halohydrocarbonoxy group; and m is an integer of 10 or more, with a functionalizing agent in the presence or absence of an organic solvent capable of dissolving the polyphenylene ether and in the presence of a basic catalyst.
Claim 2
Dependent Claim
52 words
The method according to Claim 1, wherein said functionalizing agent is a glycidol represented by the following formula: and the hydroxyalkyl-functionalized polyphenylene ether is represented by the following formula: wherein Q₁, Q₂ and m have the same meanings as defined in Claim 1, and n is an integer of 1 to 10.
Claim 3
Dependent Claim
57 words
The method according to Claim 1, wherein the functionalizing agent is an epihalohydrin represented by the following formula: wherein X represents a halogen atom, and the hydroxyalkyl-functionalized polyphenylene ether obtained by hydrolyzing a terminal glycidylated polyphenylene ether is represented by the following formula: wherein Q₁, Q₂ and m have the same meanings as defined in Claim 1.
Claim 4
Dependent Claim
67 words
The method according to Claim 1, wherein the functionalizing agent is an alkylene carbonate represented by the formula: wherein R represents a hydrogen atom or an alkyl group having 1 to 8 carbon atoms, and the hydroxyalkyl-functionalized polyphenylene ether is represented by the formula: wherein Q₁, Q₂ and m have the same meanings as defined in Claim 1, and R has the same meaning as defined above.
Claim 5
Dependent Claim
71 words
The method according to Claim 1, wherein the functionalizing agent is a halogenated alkyl alcohol represented by the formula: wherein X represents a halogen atom, and R¹ represents an alkylene group having 1 to 10 carbon atoms, and the hydroxyalkyl-functionalized polyphenylene ether is represented by the following formula: wherein Q₁, Q₂ and m have the same meanings as defined in Claim 1 and R¹ has the same meaning as defined above.
Claim 6
Dependent Claim
14 words
The method according to Claim 1, wherein the polyphenylene ether comprises 2,6-dimethyl-1,4-phenylene ether unit.
Claim 7
Dependent Claim
15 words
The method according to Claim 3, wherein the epihalohydrin as the functionalizing agent is epichlorohydrin.
Claim 8
Dependent Claim
20 words
The method according to Claim 4, wherein the alkylene carbonate as the functionalizing agent is ethylene carbonate or propylene carbonate.
Claim 9
Dependent Claim
25 words
The method according to Claim 5, wherein the halogenated alkyl alcohol as the functionalizing agent is at least one selected from 2-chloroethanol, 2-chloropropanol and 2-chlorobutanol.
Claim 10
Dependent Claim
30 words
The method according to Claim 1, wherein an amount of the functionalizing agent is 1 to 50 moles per mole of the terminal phenolic hydroxyl group of the polyphenylene ether.
Claim 11
Dependent Claim
30 words
The method according to Claim 1, wherein an amount of the basic catalyst is 1 to 30 parts by weight based on 100 parts by weight of the polyphenylene ether.
Claim 12
Dependent Claim
15 words
The method according to Claim 1, wherein a reaction temperature is 50 to 200 °C.
References Cited (Backward Citations)
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