Process for improving the chemical resistance of aromatic polyes

Details Process for improving the chemical resistance of aromatic polyes Process for improving the chemical resistance of aromatic polyes

1979-11-19

1981-09-01

Welsh, Maurice J.

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

Synthetic resins

From phenol, phenol ether, or inorganic phenolate

2642105, 264234, 264255, 264236, 264346, 264347, 528191, 528193, C08G 6316

Patent

active

042873320

ABSTRACT:
Provess for improving the chemical resistance of copolyesters derived from aromatic dicarboxylic acids, certain substituted aromatic diols and, optionally, aromatic hydroxy acids. The process involves treating shaped objects made from the aromatic polyesters by subjecting them to a temperature sufficient to raise the surface temperature thereof to at least 275.degree. C. and preferably 300.degree. C. in air or other oxygen-containing atmospheres.

REFERENCES:
patent: 3637595 (1972-01-01), Cottis
patent: 3975487 (1976-08-01), Cottis et al.

Affiliated with

Also associated with

Rating

Process for improving the chemical resistance of aromatic polyes 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 improving the chemical resistance of aromatic polyes, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for improving the chemical resistance of aromatic polyes will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1676832