Process for preparing polyphenylene ethers

Details Process for preparing polyphenylene ethers Process for preparing polyphenylene ethers

1983-02-15

1984-07-31

Lee, Lester L.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

From phenol, phenol ether, or inorganic phenolate

526 68, 526 69, 526 70, 528 86, 528214, 528215, 528217, 528486, 528487, 528490, 528496, 528499, 528502, C08G 6546

Patent

active

044631642

ABSTRACT:
An improved method for the production of polyphenylene ethers is disclosed. The method comprises oxidatively coupling monohydric phenols in the presence of a complex catalyst and in a liquid medium which is a solvent for the monomer and catalyst and a non-solvent for the polyphenylene ether. The polyphenylene ether precipitates to form a slurry of particulate solids which is then washed with an aqueous solution of a chelating agent to remove catalyst residue.

REFERENCES:
patent: 3219626 (1965-11-01), Blanchard et al.
patent: 3306874 (1967-02-01), Hay
patent: 3306875 (1967-02-01), Hay
patent: 3789054 (1974-01-01), Izawa et al.
patent: 3838102 (1974-09-01), Bennett et al.
patent: 4011200 (1977-03-01), Yonemitsu et al.
patent: 4039510 (1977-08-01), Cooper et al.
patent: 4058504 (1977-11-01), Yonemitsu et al.
patent: 4067851 (1978-01-01), Tomita et al.
patent: 4088634 (1978-05-01), Cooper et al.
patent: 4157434 (1979-06-01), Floryan et al.
patent: 4211857 (1980-07-01), Sugio et al.
patent: 4237265 (1980-12-01), Eliassen et al.
patent: 4385167 (1983-05-01), Floryan

Affiliated with

Also associated with

Rating

Process for preparing 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 Process for preparing polyphenylene ethers, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for preparing polyphenylene ethers will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-186527