Process for preparing heat-resistant aromatic polyester filament

Details Process for preparing heat-resistant aromatic polyester filament Process for preparing heat-resistant aromatic polyester filament

1975-08-01

1977-05-31

Woo, Jay H.

Plastic and nonmetallic article shaping or treating: processes

Disparate treatment of article subsequent to working,...

Effecting temperature change

264290T, 264342RE, 264346, 260 75T, B29C 2500

Patent

active

040269736

ABSTRACT:
Heat-resistant aromatic polyester filaments having heretofore unknown physical properties and a combination of excellent heat resistance and mechanical strength, which (1) is composed of an aromatic polyester in which at least 90 mole % of the structural units are ethylene-2,6-naphthalate units, (2) has a melting point at a constant length (Tm;.degree.C.) of at least 287.degree. C., (3) has a density (d)(g/cm.sup.3) of at least 1.370, (4) is insoluble in a phenol/orthodichlorobenzene mixed solvent (mixing ratio = 6/4 on the weight basis) at 160.degree. C. and (5) meets the requirements expressed by the following formulae

REFERENCES:
patent: 3413797 (1968-12-01), Chapman
patent: 3564835 (1971-02-01), Keefe et al.
patent: 3616832 (1971-11-01), Shima et al.
patent: 3634580 (1972-01-01), Wafase et al.
patent: 3683060 (1972-08-01), Tanabe et al.
patent: 3739056 (1973-06-01), Evans et al.

Affiliated with

Also associated with

Rating

Process for preparing heat-resistant aromatic polyester filament 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 preparing heat-resistant aromatic polyester filament, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for preparing heat-resistant aromatic polyester filament will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-658210