Activated anionic polymerization of lactam with partially masked

Details Activated anionic polymerization of lactam with partially masked Activated anionic polymerization of lactam with partially masked

1977-08-12

1980-03-04

Anderson, Harold D.

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

Synthetic resins

From carboxylic acid or derivative thereof

528312, 528323, 528326, C08G 6918

Patent

active

041918193

ABSTRACT:
A process for the activated anionic polymerization of lactams wherein as activator a fluid partially masked aliphatic araliphatic or cycloaliphatic polyisocyanate being masked with 0.5-0.7 equivalents of lactam per equivalent of NCO groups is used.

REFERENCES:
patent: 3017391 (1962-01-01), Motlus et al.
patent: 3304291 (1967-02-01), Dachs et al.
patent: 3621001 (1971-11-01), Steinhofer et al.
patent: 3790515 (1974-02-01), Rosenbaum et al.

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