Process for the hydrolytic preparation of a prepolymer amide fro

Details Process for the hydrolytic preparation of a prepolymer amide fro Process for the hydrolytic preparation of a prepolymer amide fro

1987-06-05

1989-06-06

Anderson, Harold D.

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

Synthetic resins

From carboxylic acid or derivative thereof

528323, C08G 6914

Patent

active

048372978

ABSTRACT:
A process for the preparation of a prepolymer amide, by hydrolytically polymerizing a lactam/water mixture of a C.sub.12 -aminocarboxylic acid lactam at a temperature in the range from 240-360.degree. C. and a steam pressure in the range of 30-180 bar, and wherein the water content of the lactam/water mixture is in the range of 7.5-30% by weight.

REFERENCES:
patent: 4077946 (1978-03-01), Enenshtein et al.
patent: 4273919 (1981-06-01), Feldmann et al.

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