Polyester and process for producing the same

Details Polyester and process for producing the same Polyester and process for producing the same

1990-06-04

1992-04-07

Kight,III, John

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

Synthetic resins

From carboxylic acid or derivative thereof

5282953, 528297, 528298, 528301, 528302, 528303, 528307, 528308, 5283086, 525437, 525438, 525444, 525447, 525449, 525450, C08G 6302

Patent

active

051029790

ABSTRACT:
This invention provides a polyester, which is composed of a constitutive unit of formula (I) and a constitutive unit of formula (II) in a proportion of (I)/(II) of being from 0.1/99.9 to 99.1/0.1 as a molar ratio and which has a logarithmic viscosity (.eta..sub.inh) of being 0.1 or more: ##STR1## where R.sub.0 is a fluorine-free monovalent organic group having from 1 to 40 carbon atoms, R.sub.1, R.sub.2 and R.sub.3 are independently a divalent organic group having from 1 to 40 carbon atoms, and n is 0 or 1.
This invention also provides a method of preparing the polyester, in which (A) a monoepoxy compound of formula (III) ##STR2## where R.sub.0 and n have the same meanings as mentioned above, (B) a polyester or a polyester precursor and (C) a dicarboxylic acid compound are reacted and polymerized.

REFERENCES:
patent: 4499239 (1985-02-01), Murakami et al.

Affiliated with

Also associated with

Rating

Polyester and process for producing the same does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1896294