Preparation of linear polycarbonates from cyclic oligomer compos

Details Preparation of linear polycarbonates from cyclic oligomer compos Preparation of linear polycarbonates from cyclic oligomer compos

1987-04-27

1988-10-18

Anderson, Harold D.

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

Synthetic resins

From reactant having a halogen atom or oxygen single bonded...

528370, C08G 6362

Patent

active

047788755

ABSTRACT:
Cyclic polycarbonate oligomers are converted to linear polycarbonate resins by heating with a polycarbonate formation catalyst which generates benzyl carbanions at temperatures up to about 300.degree. C. The preferred catalysts are unsubstituted or nuclearly substituted phenylacetic acids and their salts.

REFERENCES:
patent: 4605731 (1980-08-01), Evans et al.
patent: 4644053 (1987-02-01), Brunelle et al.
Hackh's Chemical Dictionary, 4th Edition (1969), pp. 92 and 510.

Affiliated with

Also associated with

Rating

Preparation of linear polycarbonates from cyclic oligomer compos 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 linear polycarbonates from cyclic oligomer compos, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Preparation of linear polycarbonates from cyclic oligomer compos will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1195706