Process for preparation of polyesters with improved molecular we

Details Process for preparation of polyesters with improved molecular we Process for preparation of polyesters with improved molecular we

1985-04-12

1985-11-19

Phynes, Lucille M.

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

Synthetic resins

From carboxylic acid or derivative thereof

C08G 6334

Patent

active

045543445

ABSTRACT:
Disclosed is a process for the preparation of polyesters from aromatic dicarboxylic acids or derivatives thereof and diols containing vicinal hydroxyl groups at least one of which is secondary. The use of a tin catalyst results in the formation of polyesters having I.V.'s of at least about 0.4 when the diol has two secondary hydroxyl groups and at least about 0.7 when the diol has only one secondary hydroxyl group.

REFERENCES:
patent: 3057824 (1962-10-01), LeBras et al.
patent: 3162616 (1964-12-01), Dombrow et al.
patent: 3796691 (1974-03-01), Chimura et al.

Affiliated with

Also associated with

Rating

Process for preparation of polyesters with improved molecular we 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 preparation of polyesters with improved molecular we, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for preparation of polyesters with improved molecular we will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-84535