Hydrosoluble acrylic copolymers

Details Hydrosoluble acrylic copolymers Hydrosoluble acrylic copolymers

1999-07-28

2000-08-15

Szekely, Peter A.

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

Synthetic resins

Processes of preparing a desired or intentional composition...

524650, 526 84, 526 85, 526126, 52631841, 52631842, C04B 700, C08F 238, C08F 442, C08F 2002

Patent

active

061037893

ABSTRACT:
Acrylic copolymers containing the following repeating units: ##STR1## wherein R.sub.A, R.sub.B, R.sub.C, R.sub.I, R.sub.II, equal or different, are H or CH.sub.3 ; M.sup.+ is H or a cation belonging to group IA, IIA, or ammonium; n is an integer from 0 to 2; A.sub.0 is --COO--(R.sub.T O).sub.m --R.sub.Z wherein R.sub.T is a saturated C.sub.2 -C.sub.4 alkyl group, m is an integer from 7 to 50, R.sub.Z is H or a saturated C.sub.1 -C.sub.4 alkyl group; R.sub.III is H, COOH, COO.sup.- M.sup.+ wherein M.sup.+ is as above defined or A.sub.0 as above defined; and optionally containing a third comonomer in a quantity 0-20% of the total monomer weight,
said polymers, that contain in terminal position silanol groups, are obtainable by copolymerizing the monomers in the presence of the following chain transfer agents:

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