Preparation of polyphenylene ethers

Details Preparation of polyphenylene ethers Preparation of polyphenylene ethers

C - Chemistry, Metallurgy

08

K

402/359

C08K 5/34 (2006.01) C08G 65/44 (2006.01)

Patent

CA 1204248

Abstract of the Disclosure: A process for the prepara- tion of high molecular weight polyphenylene ethers from monohydric phenols which have alkyl substituents in both ortho-positions and may additionally have an alkyl sub- stituent in one meta-position but not in the para-position, by an oxidative coupling reaction, employing oxygen, at from 10 to 25°C, in the presence of a catalyst complex comprising a copper salt and an N-substituted imidazole, in the presence of an aromatic C8-C10-hydrocarbon solvent. N-Methylimidazole, N-ethylimidazole, N-isopropyl- imidazole, N-n-butylimidazole, N-cyclohexylimidazole, N-octylimidazole and N-phenylimidazole are preferably used as the imidazole, advantageously in amounts of from 0.5 to 5 percent by weight.

406895

Affiliated with

Also associated with

Rating

Preparation of polyphenylene ethers does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Preparation of polyphenylene ethers, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Preparation of polyphenylene ethers will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1224624