Method for making cyclic carbonates and polymers therefrom

Details Method for making cyclic carbonates and polymers therefrom Method for making cyclic carbonates and polymers therefrom

1978-08-21

1980-04-08

Pertilla, Theodore E.

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

Synthetic resins

From phenol, phenol ether, or inorganic phenolate

260 458A, 260 4595G, 2603402, 528196, 528199, 528202, 528205, C08G 6362

Patent

active

041973941

ABSTRACT:
A method is provided for making cyclic carbonates of 2,2-bis(4-hydroxyphenyl)-1,1-dichloroethylene, such as the cyclic trimer, by effecting the polymerization of the aforementioned bis (4-hydroxyphenyl)dichloroethylene to a linear polycarbonate, and then agitating a solution of the resulting polycarbonate in the presence of a tertiary ogranic amine. The cyclic carbonates made by the aforementioned process are useful as flame retardants in polycarbonates.

REFERENCES:
patent: 3137706 (1964-06-01), Prochaska
patent: 3155683 (1964-11-01), Moody
patent: 3274214 (1966-09-01), Prochaska
patent: 3386954 (1968-06-01), Schnell et al.
patent: 3991120 (1976-11-01), Ladd
patent: 4117018 (1978-09-01), Cleveland et al.
Chem. Abst., vol. 77, 20082w, 1972 p. 5.

Affiliated with

Also associated with

Rating

Method for making cyclic carbonates and polymers therefrom does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method for making cyclic carbonates and polymers therefrom, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for making cyclic carbonates and polymers therefrom will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-974433