Method for preparing block polyphenylene ether-polycarbonates

Details Method for preparing block polyphenylene ether-polycarbonates Method for preparing block polyphenylene ether-polycarbonates

1989-09-14

1990-11-27

Ziegler, Jacob

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

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

525 68, 525 92, 525132, 525152, 525391, 525392, 525905, C08G 6548, C08L 6900, C08L 7112

Patent

active

049736280

ABSTRACT:
Block polyphenylene ether-polycarbonate copolymers are prepared by the reaction of a salicylate-terminated polycarbonate with a polyphenylene ether in the presence of a polycarbonate-forming transesterification catalyst. The reaction may be conducted in solution or in the melt, typically at temperatures in the range of about 100.degree.-300.degree. C. The preferred catalysts are tetraarylborates, especially tetraalkylammonium tetraarylborates.

REFERENCES:
patent: 4323668 (1982-04-01), Brunelle
patent: 4374233 (1983-02-01), Loucks et al.
patent: 4377662 (1983-03-01), Loucks
patent: 4760118 (1988-07-01), White et al.

Affiliated with

Also associated with

Rating

Method for preparing block polyphenylene ether-polycarbonates does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method for preparing block polyphenylene ether-polycarbonates, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for preparing block polyphenylene ether-polycarbonates will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1032258