Process for the production of organosilica sol and surface treat

Details Process for the production of organosilica sol and surface treat Process for the production of organosilica sol and surface treat

1990-08-30

1993-02-09

Group, Karl

Compositions: coating or plastic

Coating or plastic compositions

Silicon containing other than solely as silicon dioxide or...

10628716, 2523132, 2523156, 501 12, 501133, C09K 300

Patent

active

051850370

ABSTRACT:
An organosilica sol having an increased pH is obtained by treating an organosilica sol having pH in an acidic region with an alkali. The organosilica sol is useful as a surface treating agent since it has not only penetrativity into members such as concrete, etc., but also waterproofness and water vapor permeability, and since it causes no deterioration on members such as concrete, etc.

REFERENCES:
patent: 4054536 (1977-10-01), Schaefer et al.
patent: 4324712 (1982-04-01), Vaughn, Jr.
patent: 4476281 (1984-10-01), Vaughn, Jr.
patent: 4605446 (1986-08-01), Isozaki
patent: 4950502 (1990-08-01), Saam et al.
Chemical Abstracts, vol. 73, No. 18, Nov. 1970, Abstract No. 91836y Otsubo, Yoshio and Al.: "Controlling Viscosity of Organo-Silicasol", p. 283; column R; of JP-B-45 012 487 (Nissan Chemical Industries) Jul. 5, 1970.
Chemical Abstracts, vol. 73, No. 16, Oct. 1970, Abstract No. 81002j Akabayashi, Hiroshi and Al.: "Organosilica Sols, IV. Gelation of Silica Sol-Methanol System" p. 265; column R; of Kogyo Kagaku Zasshi, 1970, 73(5) 856-871.
Chemical Abstracts, vol. 73, No. 16, Oct. 1970, Abstract No. 81003k Akabayashi, Hiroshi and Al.: "Organosilica Sols, V. Viscosity Changes of Silica Sol-Methanol System on Addition of Amines and Ammonia." p. 265; column R; of Kogyo Kagaku Zasshi, 1970, 73(5), 871-874.
World Patents Index Week 7514, Derwent Publications Ltd., London GB; AN 75-23150W of JP-A-49 126 594 (Shokubai Kasei Kogyo Co) Dec. 1974.

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