Novel wholly aromatic copolyester, process for production thereo

Details Novel wholly aromatic copolyester, process for production thereo Novel wholly aromatic copolyester, process for production thereo

1981-07-27

1984-03-13

Lee, Lester L.

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

Synthetic resins

From phenol, phenol ether, or inorganic phenolate

2642902, 528125, 528126, 528128, 528173, 528179, 528193, 528194, C08G 6318, C08G 6360

Patent

active

044368941

ABSTRACT:
A wholly aromatic copolyester composed mainly of isophthalic acid units and hydroquinone units, the total proportion of said isophthalic acid units and hydroquinone units being at least about 80 mole % based on the entire units, said wholly aromatic copolyester having a terminal carboxyl group concentration, measured by the method described in the specification, of not more than about 90 eq/10.sup.6 g and a reduced viscosity, determined at 35.degree. C. in a mixed solvent of phenol and tetrachloroethane in a weight ratio of 4:6 in a concentration of 1.2 g/dl of at least about 0.6 and being substantially linear and melt-shapable and substantially free from a halogen atom bonded to the molecular chain, and a film prepared therefrom by melt shaping.

REFERENCES:
patent: 4064108 (1977-12-01), Inata et al.
patent: 4102864 (1978-07-01), Deex et al.
patent: 4118372 (1978-10-01), Schaefgen

Affiliated with

Also associated with

Rating

Novel wholly aromatic copolyester, process for production thereo does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Novel wholly aromatic copolyester, process for production thereo, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Novel wholly aromatic copolyester, process for production thereo will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-492773