Method for producing the hydrophilic filler for plastics

Chemistry of carbon compounds – Miscellaneous organic carbon compounds

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260 25R, 260 23AR, 260 23R, 260 296E, 260 296AT, 260 306R, 260 312R, 260 318R, 260 318G, 260 334R, 260 342, C08L 3100

Patent

active

040873960

ABSTRACT:
A mixture of monomers, at least one of which contains 1 or 2 --COOH groups and the other one of which contains more than 1 vinyl group in the molecule, is polymerized by means of radical polymerization in the medium of a plasticizer or a mixture of plasticizers having saturated higher fatty acids or/and unsaturated higher fatty acids (either plain or halogenated) and/or higher alcohols. The product is transferred into the Na, K or NH.sub.3 form, the content of plasticizer is reduced to 20 - 70 wt. % (e.g. by centrifugation) or water is removed (e.g. azeotropic or vacuum distillation). The product is suitable, above all, in manufacturing of hygienic artificial leathers.

REFERENCES:
patent: RE23757 (1953-12-01), Pike
patent: 2397751 (1946-04-01), Rand
patent: 2923692 (1960-02-01), Ackerman et al.
patent: 3404110 (1968-10-01), Hunt et al.
"Skeist" Handbook of Adhesives, 1962, pp. 326 & 327 relied on.

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