Vinylic filler products and processes for producing same

Details Vinylic filler products and processes for producing same Vinylic filler products and processes for producing same

1976-08-06

1978-08-15

Levin, Stanford M.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260874, 260880R, 260885, 528246, 528495, 528497, 528498, C08F 600, C08F 614, C08F 624

Patent

active

041071328

ABSTRACT:
Improved dry soft powdering vinylic filler products and processes for producing the same are disclosed. The vinylic filler material consists essentially of spheruloidal organic polymer material three dimensionally crosslinked to essential insolubility in any physical solvent and having primary particles in the colloidal size range of about 5 millimicrons to not more than 4.0 microns average diameter; said spheruloidal particles having on the surfaces thereof from 0 to an equal weight based on the spheruloids, of an insoluble coloring component, said coloring component, when present, comprising organic and/or inorganic material at least in part precipitated in insoluble form onto said surfaces from water soluble precursor material thereof in aqueous solution.
The improved product is formed by treating the aqueously wet never previously dried vinylic filler material with low boiling hydrocarbon solvent material preferably applied in conjunction with an oil soluble surface active agent, which treatment prevents the vinylic filler material from forming hard agglomerates on drying.

REFERENCES:
patent: 2458636 (1949-01-01), Plambeck
patent: 2673193 (1954-03-01), Kolvoort
patent: 3190850 (1965-06-01), Burke
patent: 3423358 (1969-01-01), Burke
patent: 3828012 (1974-08-01), Arndt et al.
patent: 3970725 (1976-07-01), Tugukuni

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