Aromatic polyamide from piperazine, p-phenylene diamine and tere

Details Aromatic polyamide from piperazine, p-phenylene diamine and tere Aromatic polyamide from piperazine, p-phenylene diamine and tere

1974-12-19

1977-03-08

Anderson, Harold D.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260 306R, 260 308R, 260 326NA, C08G 6932

Patent

active

040112039

ABSTRACT:
A process for producing novel aromatic polyamides having excellent heat resistance, toughness and chemical resistance and further having improved solubility, molding properties and light resistance, which comprises polycondensing a mixed diamine consisting of piperazine and p-phenylenediamine with a substantially equimolar amount of terephthaloyl dihalide in at least one amide type polar solvent (e.g. hexamethylphosphoramide, N-methyl-2-pyrrolidone, alone or a mixture thereof), wherein said piperazine is contained in a ratio of 10 to 35 % by mol on the basis of the whole mixed diamine component, and fibers produced from the aromatic polyamides having high tenacity, flexing characteristics and wear resistance and further having improved elongation ratio, knot tensile strength, fatigue resistance and fibrillation resistance.

REFERENCES:
patent: 2913433 (1959-11-01), Wittbecker et al.

Affiliated with

Also associated with

Rating

Aromatic polyamide from piperazine, p-phenylene diamine and tere does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Aromatic polyamide from piperazine, p-phenylene diamine and tere, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Aromatic polyamide from piperazine, p-phenylene diamine and tere will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1405683