Method for making redispersible synthetic resin powders

Details Method for making redispersible synthetic resin powders Method for making redispersible synthetic resin powders

1987-07-27

1989-03-28

Schofer, Joseph L.

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

Synthetic resins

Treating polymer containing material or treating a solid...

528503, 523342, 524832, 264 12, 34 10, C08F 624, C08J 312

Patent

active

048165581

ABSTRACT:
A method for obtaining redispersible powders of a copolymer having a dynamic glass transition temperature, T.sub.max, below 150.degree. C., by spray drying an aqueous dispersion thereof having a minimum film forming temperature, MFT, using an inlet temperature T.sub.i and an outlet temperature T.sub.o such that MFT<T.sub.i <T.sub.max and MFT<T.sub.o <65.degree. C.

REFERENCES:
patent: 3325425 (1967-06-01), Bray, Jr.
patent: 3950302 (1976-04-01), Rauterkus et al.
patent: 4112215 (1978-09-01), Boessler et al.
patent: 4520172 (1985-05-01), Lehmann et al.

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