Process for water-repellent impregnation of masonry

Details Process for water-repellent impregnation of masonry Process for water-repellent impregnation of masonry

1992-06-01

1993-10-05

Klemanski, Helene

Compositions: coating or plastic

Coating or plastic compositions

Coating repellent

10628711, 10628712, 10628714, 10628715, 10628716, 427301, 4274198, C09K 318

Patent

active

052501060

ABSTRACT:
A process for rendering masonry water-repellent which comprises treating masonry which is alkaline, with a highly dispersed water-diluted impregnating composition which comprises (A1) an organoalkoxysilane and/or (A2) an organosiloxane containing alkoxy groups and (B) a water-soluble organic or inorganic acid salt of an organopolysiloxane, which in addition to other organosiloxane units contains siloxane units which carry monovalent SiC-bonded radicals containing basic nitrogen in amounts of at least 0.5% by weight, based on the weight of the organopolysiloxane. The treated masonry is particularly resistant to rising dampness.

REFERENCES:
patent: 4661551 (1987-04-01), Mayer et al.
patent: 4757106 (1987-02-01), Mayer et al.

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