Polymer powders which are redispersible in water and can be prep

Details Polymer powders which are redispersible in water and can be prep Polymer powders which are redispersible in water and can be prep

1992-05-06

1993-07-06

Kight, III, John

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...

524595, 525136, 528129, 528150, C08G 804, C08F 800, C08J 6100

Patent

active

052254780

ABSTRACT:
Polymer powders which are redispersible in water and are obtainable by atomizing aqueous polymer dispersions to which from 3 to 50% by weight, based on the polymer, of a water-soluble alkali metal salt or alkaline earth metal salt of a phenolsulfonic acid/formaldehyde condensate has been added are used as additives in hydraulic binders.

REFERENCES:
patent: 3219607 (1965-11-01), Perronin
patent: 4816558 (1989-03-01), Rauch et al.

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