Hydroquinone-bisphenol cyclic copolycarbonate oligomer

Details Hydroquinone-bisphenol cyclic copolycarbonate oligomer Hydroquinone-bisphenol cyclic copolycarbonate oligomer

1988-12-27

1990-04-24

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...

528196, 528201, 528204, 528371, 528372, C08G 6362

Patent

active

049202006

ABSTRACT:
Cyclic copolycarbonate oligomer mixtures are prepared from mixtures of hydroquinone bischloroformate and bischloroformates of bisphenols, typically bisphenol A or a spirobiindane bisphenol, by condensation in the presence of an amine, an aqueous base and a non-polar organic liquid. They may be converted to solvent-resistant linear polycarbonates, many of which are crystalline.

REFERENCES:
patent: 4605731 (1986-08-01), Evans et al.
patent: 4644053 (1987-02-01), Brunelle et al.

Affiliated with

Also associated with

Rating

Hydroquinone-bisphenol cyclic copolycarbonate 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 Hydroquinone-bisphenol cyclic copolycarbonate oligomer, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Hydroquinone-bisphenol cyclic copolycarbonate oligomer will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-35439