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公开(公告)号：ES2086431T3
公开(公告)日：1996-07-01
申请号：ES91108345
申请日：1991-05-23
Applicant: HOECHST AG
Inventor： DEBUS GERHARD , MANN HEINZ-JOSEF , LUDKE MARTIN
Abstract: Thickener systems for water-containing building material mixtures consist of 0.01 to 2% by weight of a water-soluble cellulose ether, 0.01 to 2% by weight of polyvinyl alcohol and 0.005 to 1% by weight of boric acid or salts thereof, each of the percentage figures relating to the dry matter content in the building material mixture. … As a result of the addition of boric acid or borax, these thickener systems show an improved thickening effect as compared with those thickener mixtures which consist only of cellulose ether and polyvinyl alcohol.
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