Processes for production of azo macroinitiators for the synthesi

Details Processes for production of azo macroinitiators for the synthesi Processes for production of azo macroinitiators for the synthesi

1996-04-03

1997-03-18

Reddick, Judy M.

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

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

523402, 523415, 523423, 524457, 524458, 524460, 524500, 524502, 524505, 524506, 524507, 524513, 524514, 524529, 524534, 524535, 524537, 524538, 524539, 524555, 524556, 524588, 524589, 524591, 524860, 524866, 524547, C08L 3100

Patent

active

056124066

ABSTRACT:
The invention concerns a process for the production of block copolymers or aqueous dispersions and emulsions thereof, whereby azo macroinitiators are reacted with radical-polymerizable monomers or a mixture of several radical-polymerizable monomers. The azo macroinitiators are obtained by reacting simple reactive azo compounds with prepolymers with a molecular weight between 400 and 20000, which possess at least 2 functional groups, e.g. polyurethanes or polyesters.
The aqueous block copolymer dispersions and emulsions produced according to the invention are suitable for use for the production of paints, adhesives etc.

REFERENCES:
patent: 3763729 (1973-10-01), Sheppard et al.
patent: 3909497 (1975-09-01), Hendry et al.
patent: 5039734 (1991-08-01), Kinoshita et al.
German DE 3 005 889, Sep. 3, 1981, (English Abstract).
East German DD 235 651 A1, May 14, 1986, (English Abstract).
Patent Abstracts of Japan, 62-296,450, May 31, 1989.
Patent Abstracts of Japan, 60-94,298, Nov. 10, 1986.
Patent Abstracts of Japan, 63-57,774, Sep. 14, 1989.

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