Activated anionic polymerization of lactams

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...

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528315, 528323, C08F28304, C08G 6948, C08L 7700

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active

047540001

ABSTRACT:
Biuret-group-containing polyisocyanates based on non-aromatic diisocyanates, possibly mixed with liquid N-alkyl-lactams, as activators for activated anionic polymerization of lactams.

REFERENCES:
patent: 3671501 (1972-06-01), Johnson
patent: 4191819 (1977-08-01), Meyer et al.
patent: 4490520 (1987-02-01), Kawachingan et al.
Patent Abstracts of Japan, Book 8, No. 212 (C-244) [1649], Sep. 27, 1984; & JP-A-59 100 134 (Ube Kosan K.K.) 9.06.1984 (Kat.A).

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