Patent ID: 8741038
Filing Date: 2014-06-03
Classification: C04B,C09D

Abstract:
1. A fluorine-free composition, comprising: (A) a hydrophobizing active substance comprising a mixture of at least one alkyl-substituted silane of the general formula I, at least one a linear, cyclic or branched oligomeric siloxane of idealized formula II and at least one an alkyl silicate of idealized formula III: wherein each R each R each R each R (n+m) represents an average degree of oligomerization with a value of from 2 to 50, wherein the average molar mass of the linear, cyclic or branched oligomeric siloxane of idealized formula II is from 300 to 10 000 g/mol; and o is a number from 0 to 50; and (B) from 0.01 to 10% by weight of at least one hydrophobic metal oxide.