Fluoralkyl-funktionelle Organopolysiloxan-haltige Zusammensetzungen auf Wasser/Alkohol-Basis, Verfahren zu deren Herstellung sowie deren Verwendung

摘要

Water/alcohol-based, fluoroalkyl-functional compositions containing organo-polysiloxanes of formula ROÄSi(A)(CH3)2(OR)1-zOÜaÄSi(B)(R<2>)y(OR)1-yOÜbÄSi(C)(CH3< /SB>)OÜcÄSi(D)(OR)OÜdR.(HX)e (I); (where A = amino-alkyl group derived from formula H2N(CH2)f(NH)g(CH2)h-Si(CH3)2(OR)3-z (II); R = linear, branched or cyclic 1-8C alkyl, or aryl; f = 0-6; g = 0 if f = 0, or g = 1 if f = more than 0; h = 0-6; z = 0-1; B = fluoroalkyl group derived from formula R<1>-Y-(CH2)2-Si(R<2>)y(OR)3-y (III); R<1> = mono-, oligo- or per- fluorinated 1-9C alkyl or aryl; Y = CH2, O or S; R<2> = as for R; y = 0-1; C = alkyl group derived from formula R<3>-Si(CH3)(OR)2 (IV); D = alkyl group derived from R<3>Si(OR)3 (V); R<3> = linear, branched or cyclic 1-8C alkyl; X = residue of inorganic or organic acid; a, b = more than 0; c, d, e = 0 or more; a + b + c + d = at least 2). Also claimed is a process for the production of these compositions. Preferably the composition has a pH of 1-8 and may contain monobasic inorganic and/or organic acids and/or secondary products thereof. The free alcohol content is 3-50 wt% and the content of fluoroalkyl-functional active substance is 0.005-85 wt%. These compositions produce a waterproofing and oil-proofing effect. The compositions are obtained by the process described above. The organosilanes used are co-condensed with 0.5-30 mols water per mol organosilane, preferably using a monobasic acid. Reaction is carried out at 0-100 degrees C. The product obtained may be further purified by sedimentation and/or filtration.