| 摘要 |
The invention concerns a method for preparing functionalised polyorganosiloxanes by carrying out successive hydrosilylation of two types of monomers (I and II) with a hydrogenosiloxane comprising identical or different structural units of the general formula (III): RaHbSiO 4-(a+b)/2 in which: (i) a = 0, 1 or 2, b = 0 or 1, a+b = </=2; (ii) the symbols R represent monovalent hydrocarbon radicals. The first hydrosilylation is carried out with a first type of monomer of formula (I): CH2=CH-(CH2)n-(OCH2CH2) alpha (OCH2CHCH3) beta -OR<1>. The second hydrosilylation is carried out with a second type of monomer (II) of the secondary or tertiary congested amine type, preferably a congested piperidinyl group. The invention also concerns the use of compositions containing at least one polyorganosiloxane obtained by the method of preparation, for conditioning textile materials providing a soft feel, good hydrophily and proof to discoloration. |
