Surface chemistry modified latex and redispersible powders,...

Details Surface chemistry modified latex and redispersible powders,... Surface chemistry modified latex and redispersible powders,...

2006-03-14

2006-03-14

Jagannathan, Vasu (Department: 1714)

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...

C524S457000, C524S461000, C524S501000, C524S505000, C525S243000, C525S267000

Reexamination Certificate

active

07012114

ABSTRACT:
The present invention relates to a latex with modified surface chemistry, which may be obtained by carrying out a free-radical emulsion polymerization in the presence of at least one ethylenically unsaturated monomer or at least one polymer containing residual ethylenically unsaturated bonds, of at least one free-radical polymerization initiator, of at least one water-soluble and/or water-dispersible monoblock, diblock or triblock polymer comprising at its end an active group capable of forming a radical, chosen from dithioesters, xanthates, thioether-thiones and diothiocarbamates. The invention similarly relates to redispersible powders that may be obtained by drying the said latices.

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