Highly crystallized molded polyarylene thioether and process for

Details Highly crystallized molded polyarylene thioether and process for Highly crystallized molded polyarylene thioether and process for

1988-03-30

1989-03-07

Lowe, James

Stock material or miscellaneous articles

Structurally defined web or sheet

Physical dimension specified

2642356, 2642358, 2642896, 528388, C08G 7514, B29C 7102, D02J 122

Patent

active

048105660

ABSTRACT:
A highly crystallized, molded product of a polyarylene thioether resin, which has little dimensional deformation and wavy wrinkles, is high in heat-resistance and transparency and is tough and is obtained by the process comprising the steps of stretching a molded product mainly consisting of polyarylene thioether of the crystallization degree of not more than 15% in at least one direction at a stretching ratio of 2 to 5 times, making an organic solvent having a solubility parameter of 8 to 12, contacting the solvent with the stretched, molded product at a temperature in the range of from the solidifying point of the solvent to 130.degree. C., thereby preliminarily crystallizing the stretched, molded product until the increased portion of the crystallization degree becomes not less than 6% and then thermally treating preliminarily crystallized product at 140.degree. to 300.degree. C. until the crystallization degree reaches not less than 22%.

REFERENCES:
patent: 4286018 (1981-08-01), Asakura et al.
patent: 4629778 (1986-12-01), Sugie et al.
patent: 4645825 (1987-02-01), Idel et al.

Affiliated with

Also associated with

Rating

Highly crystallized molded polyarylene thioether and process for does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Highly crystallized molded polyarylene thioether and process for, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Highly crystallized molded polyarylene thioether and process for will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1667906