Claims
- 1. A process for preparing a carbonyl group-modified polyphenylene ether which comprises reacting a mercaptan having a carbonyl group and represented by the formula:
- (HS).sub.m --R.sup.3 --(COR.sup.4).sub.n
- wherein m and n each represent an integer of 1 to 4, R.sup.3 represents a divalent to hexavalent saturated aliphatic hydrocarbon group having one to 29 carbon atoms or an aromatic hydrocarbon group, and R.sup.4 represents an alkali metal oxy group, a hydroxyl group, an aryloxy group, an alkyloxy group or a hydrocarbonoxy group, with a polyphenylene ether having a carbon-carbon unsaturated bond in a substituent.
- 2. The process according to claim 1, wherein said polyphenylene ether contains 2-allyl-6-methylphenol unit.
- 3. The process according to claim 1, wherein said polyphenylene ether is a copolymer of 2-allyl-6-methylphenol and 2,6-dimethylphenol.
- 4. The process according to claim 1, wherein said mercaptan is mercaptoacetic acid, 2-mercaptopropionic acid, mercaptosuccinic acid or ethyl mercaptoacetate.
- 5. The process according to claim 1, wherein said mercaptan is 2-mercaptopropionic acid, 2-mercaptopropionic acid, 3-mercaptopropionic acid, thiosalicylic acid, methyl 3-mercaptopropionate, ethyl 2-mercaptopropionate, or sodium mercaptoacetate.
Priority Claims (6)
Number |
Date |
Country |
Kind |
2-92997 |
Apr 1990 |
JPX |
|
2-124040 |
May 1990 |
JPX |
|
2-138593 |
May 1990 |
JPX |
|
2-181672 |
Jul 1990 |
JPX |
|
2-219987 |
Aug 1990 |
JPX |
|
2-234591 |
Sep 1990 |
JPX |
|
Parent Case Info
This is a division of application Ser. No. 07/841,412, filed on Feb. 26, 1992, now abandoned, which is a continuation of application Ser. No. 07/681,057 filed Apr. 5, 1991 now U.S. Pat. No. 5,120,800.
US Referenced Citations (1)
Number |
Name |
Date |
Kind |
5120800 |
Tsukahara et al. |
Jun 1992 |
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Divisions (1)
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Number |
Date |
Country |
Parent |
841412 |
Feb 1992 |
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Continuations (1)
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Number |
Date |
Country |
Parent |
681057 |
Apr 1991 |
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