C - Chemistry – Metallurgy – 08 – L
Patent
C - Chemistry, Metallurgy
08
L
402/48, 400/7325
C08L 61/34 (2006.01) C08G 8/24 (2006.01) C08G 16/02 (2006.01) C09D 5/34 (2006.01)
Patent
CA 1246782
- 1 - Abstract of the disclosure: 1. Acid-curable mixture for low-shrinkage cements which is based on a reaction product of furfuryl alcohol with a resol having at least 0.5 hydroxymethyl group per phenolic hydroxyl group, and which contains A), as the binder, the reaction product of furfuryl alcohol and the resol on the basis of a) at least one trifunctional phenol or a mixture of this phenol a) with b) alkylphenols and/ or aralkylphenols, each having 3 to 20 carbon atoms in the alkyl radical, or an arylphenol, each mixture b), based on the sum of the phenols a) and b), more than 0.4 mole of furfuryl alcohol having been reacted per hydroxymethyl group, and B) at least one reactive diluent in a ratio by weight of (0.4 to 1.5):1 to the resin A). This solution is mixed, preferably immediately before use, uith C) at least one filler and D) at least one cur- ing agent, the ratio by weight between the sum of the components A) and B) and that of the components C) and D) being 1:(1 to 7), preferably 1:(1.5 to 5). The result- ing cements have a very low shrinkage and are extremely resistant to chemicals.
472716
Hesse Wolfgang
Rauhut Klaus
Fetherstonhaugh & Co.
Hoechst Aktiengesellschaft
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