Method for preparing powder including adding fluoro non-ionic su

Details Method for preparing powder including adding fluoro non-ionic su Method for preparing powder including adding fluoro non-ionic su

1994-01-27

1995-04-04

Henderson, Christopher

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

524834, 526199, 526200, 526201, 526202, 526209, C08F 216

Patent

active

054038995

ABSTRACT:
A method for preparing powder of a vinyl chloride polymer comprises the steps of polymerizing vinyl chloride monomer or a vinyl monomer mixture mainly comprising vinyl chloride monomer in an aqueous medium and adding, to the polymerization system, a fluorine atom-containing nonionic surfactant in an amount ranging from 0.0001 to 0.5 part by weight per 100 parts by weight of the vinyl chloride monomer or the vinyl monomer mixture mainly comprising vinyl chloride monomer after the rate of polymerization reaches at least 70% or fine powder of at least one inorganic substance having a particle size ranging from 0.001 to 50 .mu.m in an amount ranging from 0.001 to 1.0 part by weight per 100 parts by weight of the vinyl chloride monomer or the vinyl monomer mixture mainly comprising vinyl chloride monomer after the rate of polymerization reaches at least 70%. The method for preparing powder of a vinyl chloride polymer makes it possible to form powder of a vinyl chloride polymer which is not electrically charged during, for instance, the storage and transport thereof. The resulting polymer powder hardly causes reduction of the bulk density and flow properties.

REFERENCES:
patent: 3271341 (1966-09-01), Garrison, Jr.
patent: 3548035 (1970-12-01), Ohe
patent: 3642745 (1972-02-01), Golstein
patent: 3697493 (1972-10-01), Meyer
patent: 3775357 (1973-11-01), Nemeth
patent: 3895000 (1975-07-01), Mathieu
patent: 4657999 (1987-04-01), Hoefer
patent: 5045611 (1991-09-01), McNeil

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