Composition of a redispersible spray dried unsaturated sulfonic

Details Composition of a redispersible spray dried unsaturated sulfonic Composition of a redispersible spray dried unsaturated sulfonic

1996-09-11

1998-03-10

Buttner, David

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

Synthetic resins

Processes of preparing a desired or intentional composition...

524521, 523342, C04B 2416, C04B 2604

Patent

active

057262241

ABSTRACT:
Polymers I comprising from 15 to 80% by weight of monomers of the general formula I ##STR1## where R.sup.1, R.sup.2 and R.sup.3 are each C.sub.1 -C.sub.3 -alkyl, R.sup.4 is C.sub.1 -C.sub.3 -alkyl and X is O or NH, and from 20 to 85% by weight of other monomers capable of undergoing free radical copolymerization are used as assistants in the spray drying of aqueous dispersions of polymers II which differ from the polymers I. The resultant powders are added to mineral binders.

REFERENCES:
patent: 4806164 (1989-02-01), Brothers
patent: 5462978 (1995-10-01), Penzel

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