Process for the production of polyamides

Details Process for the production of polyamides Process for the production of polyamides

1975-12-08

1978-11-07

Danison, Walter C.

Chemistry: electrical and wave energy

Processes and products

Processes of treating materials by wave energy

260 78L, 260 78P, C08F 254, C08F 400, C08G 6914

Patent

active

041244680

ABSTRACT:
A process for the production of polyamides, which comprises polymerizing lactams in the presence of oxides of transition-metals. The process is carried out at a temperature in the range from 200.degree. to 350.degree. C in air or in an inert gaseous medium. Said process may likewise be conducted with the reactants being exposed to an ionizing radiation, e.g. gamma-radiation, which boosts the polymerization rate by 5 or more times. The end product shows good mechanical, electrical and thermophysical properties and is 10 times as wear-resistant as the prior art materials. The process of the invention gives no by-products, wastes or sewage.

REFERENCES:
patent: 2622076 (1952-12-01), Koch
patent: 3174951 (1965-03-01), Taber
patent: 3321447 (1967-05-01), Kunde et al.
patent: 3383367 (1968-05-01), Black et al.
patent: 3883608 (1975-05-01), Herbert
Shein et al., Chemical Abstracts, vol. 62:6639g (1965).
Nagato et al., Chemical Abstracts, vol. 77:35,257f (1972).

Affiliated with

Also associated with

Rating

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2232636