Process for preparing a halogenated aromatic polyester having a

Details Process for preparing a halogenated aromatic polyester having a Process for preparing a halogenated aromatic polyester having a

1977-07-28

1979-01-02

Phynes, Lucille M.

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

Synthetic resins

Effecting a change in a polymerization process in response...

260 336R, 528191, C08G 6322

Patent

active

041327055

ABSTRACT:
A process for preparing certain halogenated aromatic polyesters having a predetermined molecular weight is provided. Such polyesters are prepared by solution polymerization of an appropriate bisphenol and diacid halide wherein the diacid halide is added to a solution containing the bisphenol until the viscosity of the resulting polymer containing solution reaches a predetermined solution viscosity limit at which time the further addition of diacid halide is terminated. The solution viscosity limit is indicative of the attainment of said predetermined molecular weight. The identification of said solution viscosity limit is achieved by a feedback mechanism wherein the viscosity of the polymer containing solution is monitored or sensed during or after the addition of the diacid halide to the bisphenol containing solution.

REFERENCES:
patent: 3234167 (1966-02-01), Sweeny
patent: 3883467 (1975-05-01), Stackman et al.
patent: 4049629 (1977-09-01), Pawlak et al.

Affiliated with

Also associated with

Rating

Process for preparing a halogenated aromatic polyester having a does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Process for preparing a halogenated aromatic polyester having a , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for preparing a halogenated aromatic polyester having a will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1517079