Redispersible polymer powders, method for their preparation and

Details Redispersible polymer powders, method for their preparation and Redispersible polymer powders, method for their preparation and

1995-09-21

1999-04-20

Truong, Duc

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

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

525347, 525398, 525472, 525535, 525540, 528254, 528255, 528258, 528265, 528503, C08F28300

Patent

active

058958029

ABSTRACT:
The invention concerns redispersible polymer powders characterized by a proportion of 3 to 30% by wt relative to the polymer weight of condensation products of amino-s-triazine/formaldehyde/sulfite with molar ratios of amino-s-triazine to formaldehyde to sulfite of 1/1.3-6.0/0.3-1.5 and with a low free formaldehyde content. These condensation products of amino-s-triazine/formaldehyde/sulfite are exceedingly effective protective colloids when spray-drying polymer dispersions and can be combined in problem-free manner with casein.

REFERENCES:
patent: 5071945 (1991-12-01), Weichmann et al.
patent: 5342916 (1994-08-01), Weiser et al.

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