Aftertreatment of spray dried, powdered vinyl chloride emulsion

Details Aftertreatment of spray dried, powdered vinyl chloride emulsion Aftertreatment of spray dried, powdered vinyl chloride emulsion

1976-09-13

1980-06-10

Henderson, C. A.

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

Synthetic resins

Treating polymer containing material or treating a solid...

526 91, 526216, 528502, 528503, C08F 614

Patent

active

042074126

ABSTRACT:
The rheological properties of plastisols of powdered polymerizates produced by polymerizing vinyl chloride or a mixture of vinyl chloride and a copolymerizable monomer in an aqueous emulsion in the presence of a water-soluble catalyst and an alkali salt of a fatty acid as the polymerization emulsifier and spray drying the resultant polymerizate, are improved by treating the powdered polymerizate with water in a weight ratio of from 1:2 to 1:15 and then drying.

REFERENCES:
patent: 2829134 (1958-04-01), De Coene
patent: 2957858 (1960-10-01), O'Donnell
patent: 3311579 (1967-03-01), Donat
patent: 3627717 (1971-12-01), Kuhnen
patent: 3652752 (1972-03-01), Rosenthal
patent: 3732178 (1973-05-01), Kuhnen
patent: 3805869 (1974-04-01), Winter
patent: 3883494 (1975-05-01), Winter

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