Process for the treatment of mineral building materials

US5721016A · kind A · utility

Assignee

• Degussa AG · DE

Inventors

• Peter Panster · Rodenbach, DE
• Thomas Goebel · Bad Kötzting, DE
• Stefan Wieland · Offenbach, DE
• Marion Langen · Werlte, DE
• Klaus Zinsmeister · Grevenbroich, DE
• Ute Werner · Grevenbroich, DE
• Christian Brandes · Gelnhausen, DE

Key dates

• Filing date: May 20, 1996
• Grant date: Feb 24, 1998
• Expiry date: May 20, 2016

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C04B2111/21
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

A process for the impregnating and priming treatment of mineral building materials of synthetic or natural origin using aqueous suspensions or solutions which contain at least one silicon-containing ion exchanger of the formula EQU (YO).sub.3 Si(CH.sub.2).sub.x !.sub.n EX (I) or an oligomer of this compound, wherein PA1 x signifies an integer of 1 to 12, PA1 n signifies an integer of 1 to 3, depending on E PA1 Y signifies H, Na, K, Mg, Ca, Ba PA1 E signifies a cation-exchanging or anion-exchanging group, and PA1 X signifies H.sup.+ or an alkali cation or alkaline earth cation or OH.sup.- or an anion, in a quantity of from 0.1 to 70% by weight, particularly from 10 to 30% by weight, based on the total quantity of the solution or suspension, with the treatment being carried out in a single stage or in multiple stages, optionally combined with a treatment with aqueous or organic emulsions or solutions containing hydrolyzable silanes and/or siloxanes.