Process for the production of phenylene ether oligomer

Details Process for the production of phenylene ether oligomer Process for the production of phenylene ether oligomer

2007-05-24

2010-11-23

Boykin, Terressa M (Department: 1796)

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

Synthetic resins

From phenol, phenol ether, or inorganic phenolate

C428S413000, C525S370000, C526S317100, C528S361000, C549S561000, C568S660000, C568S730000

Reexamination Certificate

active

07838618

ABSTRACT:
A process for producing a phenylene ether oligomer comprising oxidative polymerization of a specific bivalent phenol compound and a specific monovalent phenol compound in an aromatic hydrocarbon solvent, wherein the aromatic hydrocarbon solvent of a phenylene ether oligomer solution obtained after the termination of the polymerization is replaced with a water-soluble organic solvent having a boiling point higher than that of the aromatic hydrocarbon solvent and the resultant phenylene ether oligomer solution is brought into contact with water, thereby precipitating the phenylene ether oligomer as particles.

REFERENCES:
patent: 4246398 (1981-01-01), Sugio et al.
patent: 2003/0130438 (2003-07-01), Amagai et al.
patent: 2003/0229256 (2003-12-01), Ishii et al.
patent: 2004/0214004 (2004-10-01), Amagai et al.
patent: 54-146896 (1979-11-01), None
patent: 2000-281798 (2000-10-01), None
patent: 2000-281799 (2000-10-01), None
patent: 2004-099681 (2004-04-01), None
patent: 2006-028111 (2006-02-01), None

Affiliated with

Also associated with

Rating

Process for the production of phenylene ether oligomer 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 the production of phenylene ether oligomer, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for the production of phenylene ether oligomer will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4185772