Silicon tenside compounds and their use for producing foam

摘要

Composition for the production of foam, containing organosilicon compounds with two or three types of siloxane units, some of which contain sulfonate groups. A composition (A) for the production of foam, containing organosilicon compound(s) with (a) siloxane unit(s) of formula (R 1>) w(R 2>O) xSiO (4-(w+x))/2(I), optionally (b) siloxane unit(s) of formula (R 3>) yR 4>SiO (4-(y+1))/2(VI) and (c) siloxane unit(s) of formula (R 5>) zR 6>SiO (4-(z+1))/2(II) with at least one sulfonate group. R 1>, R 2>1-30C optionally unsaturated alkyl, haloalkyl, aryl, alkylaryl or aralkyl (optionally with in-chain oxygen and/or nitrogen and/or a terminal acetoxy group); w, x : 0, 1, 2 or 3; (w+x) : not more than 3; R 3>as for R 1>; y : 0, 1 or 2; R 4>a group of formula A a-B b-C c-D d-E e-L l; a : 1; b, c, d, e : 0 or 1; l : 1; (a+b+c) = at least 1; A : O, CH 2or CH=CH; B : -(G-COO) m- (III); m : 0-30; G : 1-20C optionally unsaturated alkylene, arylene, alkylarylene or aralkylene; C : CH 2, 1-20C optionally unsaturated alkyleneoxy, aryleneoxy, aylkylaryleneoxy or aralkyleneoxy, or a group of formula -CH 2O(CH 2) 4O-; D : -(C 2H 4O) n-(C 3H 6O) p-(C 12H 24) q-(C 8H 8O) r- (IV); n, p, q, r : 0-50 (if more than one of these indices is greater than zero, (IV) is a statistical oligomer or block oligomer); E : a group of formula -[CO-(CH 2) t-O] u-; u : 0-5; t : 3, 4 or 5 if u is greater than zero; L : H, 1-12C optionally unsaturated alkyl, aryl, alkylaryl or aralkyl, acetoxy, PO3H 2, PO 3H ->1/vM v+>or PO 32->2/vM v+>; M : a v-valent cation; v : 1, 2, 3 or 4; R 5>as for R 1>; z : 0, 1 or 2; R 6>A a-B b-C c-D d-E e-F f-SO 3->1/vM v+>; a, c, f : 1; b, e : 0 or 1; d : 1 in at least 70% of residues R 6>; A, B, C, D, E, M v+>as above, with the proviso that A is an oxygen atom in 5-100% of the residues and CH 2and/or CH=CH in 0-95% of the residues; F : 1-20C optionally unsaturated alkylene, arylene, alkylarylene or aralkylene.