| 摘要 |
<p>The present invention discloses non-hydrolyzable, block, (AB)nA type, copolymers comprising alternating units of polysiloxane and amino-polyalkyleneoxide and provides a method for the preparation of these copolymers. Also provided is the use of these copolymers as softeners, in particular durable, hydrophilic textile softeners, which improve tactile properties of the textiles substrates treated with the commercial soil release finishes, without substantially detracting from their properties. The copolymers of the present invention have alternating units of polysiloxane [X(CaH2aO)bR<2>[(SiO(R<1>)2]cSi(R<1>)2R<2>(CaH2aO)bX] and polyalkyleneoxides [YO(CaH2aO)dY] wherein R<1> is a C1 to C4 alkyl, preferably methyl, R<2> is a divalent organic moiety, X and Y are divalent organic groups selected from a secondary or tertiary amine and a ring opened epoxide, such that when X is a ring opened epoxide, Y is an amine and vice versa, a = 2 to 4, preferably 2 to 3, b = 0 to 100, d = 0 to 100, b + d = 1 to 100, preferably 10 to 50, and c = 1 to 500, preferably 10 to 100.</p> |
