Redispersible dispersion powder composition, its use, and...

Details Redispersible dispersion powder composition, its use, and... Redispersible dispersion powder composition, its use, and...

2005-05-31

2005-05-31

Cheung, William K. (Department: 1713)

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...

C252S500000

Reexamination Certificate

active

06900259

ABSTRACT:
A dispersion powder composition based on water-insoluble polymers with particularly low water absorption comprises, based on the total weight of the polymer, an amount in the range from 0.1 to 30% by weight of at least one carboxylic ester whose acid component has at least 6 carbon atoms and whose alcohol component is a polyhydroxy compound, preferably glycerol, diglycerol, or triglycerol. This is prepared by mixing polymer and protective colloid with the carboxylic ester to prepare a dispersion and then, where appropriate, drying this with simultaneous admixing of an anticaking agent, and gives good results when used for modifying wallpaper pastes, mortars, or concrete.

REFERENCES:
patent: 4734135 (1988-03-01), Satomi et al.
patent: 5606015 (1997-02-01), Chiou et al.
patent: 1 248 292 (1959-11-01), None
patent: 100 49 127 (2002-04-01), None
patent: 0 717 016 (1996-06-01), None
patent: 0 731 128 (1996-09-01), None

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