Aromatic polycarbonate copolymer, a process for producing the sa

Details Aromatic polycarbonate copolymer, a process for producing the sa Aromatic polycarbonate copolymer, a process for producing the sa

1993-10-25

1995-04-25

Buttner, David

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

Synthetic resins

Processes of preparing a desired or intentional composition...

524302, 524323, 528202, 528204, G08G 6410

Patent

active

054099757

ABSTRACT:
There is provided an aromatic polycarbonate copolymer obtained by reacting a dihydric phenol component comprising mainly 2,2-bis(4-hydroxyphenyl)-1,1,1,3,3,3-hexafluoropropane and 9,9-bis(4-hydroxyphenyl)fluorene or 1,1-bis(4-hydroxyphenyl)-1-phenylethane in a prescribed ratio with a carbonate precursor substance. This aromatic polycarbonate copolymer has a specific viscosity in a limited range. The aromatic polycarbonate copolymer is excellent in optical characteristics, transparency, hydrolysis resistance, heat resistance, oxidation resistance, and heat stability and good in moldability, and is suitable for a plastic optical waveguide that is small in transmission loss and excellent in heat resistance.

REFERENCES:
patent: 3546165 (1970-12-01), Morgan
patent: 4346211 (1982-08-01), Krishnan
Database WPI, Week 9115, Derwent Publications Ltd., London, GB; AN 91-105060 (abstract).
Morgan, Macromolecules, pp. 536-544 (1970).

Affiliated with

Also associated with

Rating

Aromatic polycarbonate copolymer, a process for producing the sa does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Aromatic polycarbonate copolymer, a process for producing the sa, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Aromatic polycarbonate copolymer, a process for producing the sa will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1568298