Process for spray drying of vinyl chloride homopolymers and copo

Details Process for spray drying of vinyl chloride homopolymers and copo Process for spray drying of vinyl chloride homopolymers and copo

1987-08-31

1990-08-14

Henderson, Christopher

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

Synthetic resins

Treating polymer containing material or treating a solid...

528502, 528503, C08F 614

Patent

active

049488724

ABSTRACT:
A process for the preparation of vinyl chloride homopolymer and copolymer pulverulent powders suitable for the preparation of plastisols with improved rheological properties, comprising polymerizing to form a vinyl chloride homopolymer or copolymer latex and drying said latex by atomization, the temperature at which the latex to be subjected to drying by atomization is employed being at least equal to 40.degree. C. and being lower than the degradation temperature of said homopolymer or copolymer, and the resultant vinyl chloride polymer pulverulent powders.

REFERENCES:
patent: 4133947 (1979-01-01), Kalka
patent: 4229249 (1980-10-01), Felsvang et al.
patent: 4283526 (1981-08-01), Chandra
patent: 4389522 (1983-06-01), Boeke
patent: 4539396 (1985-09-01), Yasui
Chemical Abstracts, vol. 101, No. 16, Oct. 15, 1984, p. 31, No. 101:131551g; W. A. Roberson et al.

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