Polycarbonate production method

Details Polycarbonate production method Polycarbonate production method

1994-02-23

1994-12-06

Kight, III, John

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

Synthetic resins

From phenol, phenol ether, or inorganic phenolate

524158, 524165, 524745, 524746, 528487, C08G 6400

Patent

active

053711700

ABSTRACT:
Polycarbonates are prepared by inducing the melt polycondensation of an aromatic dihydroxy compound and a diester carbonate in the presence of alkali metal compounds and/or alkaline earth metal compound droxy and adding to the polycarbonate which is the reaction product thereof: a sulfonic acid compound having the formula ##STR1## in an amount to 0.05-10 ppm, based on the polycarbonate, and also an epoxy compound in an amount of 1-2000 ppm, based on the polycarbonate.

REFERENCES:
patent: 3489716 (1970-01-01), Calkins

Affiliated with

Also associated with

Rating

Polycarbonate production method does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Polycarbonate production method, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Polycarbonate production method will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-215314