Preparation of polyamides

Details Preparation of polyamides Preparation of polyamides

1982-03-04

1983-11-08

Michl, Paul R.

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

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

525184, 528313, 528314, 528323, 528326, C08G 6914

Patent

active

044143621

ABSTRACT:
Polyamides from lactams are prepared by the reaction of an initiator compound, a liquid hydroxy containing nitrile copolymer and a lactam using as a catalyst a minor amount of a lactam anionic polymerization catalyst. The resulting polyamides exhibit high impact strength and improved dimensional stability or reduced sensitivity to dimensional change upon exposure to a high humidity environment.

REFERENCES:
patent: 3028369 (1962-04-01), Butler
patent: 3134746 (1964-05-01), Grabowski
patent: 3218371 (1965-11-01), Grabowski
patent: 3887643 (1975-06-01), Selman
patent: 4018731 (1977-04-01), Sims

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