[EN] FLUORESCENT WHITENING NANOPARTICLES<br/>[FR] NANOPARTICULES FLUORESCENTES DE BLANCHIMENT
申请人:CIBA HOLDING INC
公开号:WO2009019135A1
公开(公告)日:2009-02-12
The invention relates to functionalized nanoparticles comprising on the surface a covalently bound radical of formula (I), wherein the nanoparticles are SiO2, AI2O3 or mixed SiO2 and AI2O3 nanoparticles, R1 and R2 are independently of each other hydrogen; C1-C25alkyl which may be interrupted by -O- or -S-; C2-C24alkenyl; phenyl; C7-C9phenylalkyl; -OR5; formula (II); formula (III); or formula (IV), R5 is hydrogen; C1-C25alkyl which may be interrupted by -O- or -S-; C2-C24alkenyl; phenyl;C7-C9phenylalkyl;formula (V); or the nanoparticle surface, R6 and R7 independently of each other are hydrogen; C1-C25alkyl which may be interrupted by -O- or -S-; C2-C24alkenyl; phenyl; C7-C9phenylalkyl; or -OR5, and R8, R9 and R10 independently of each other are hydrogen; C1-C25alkyl which may be interrupted by -O- or -S-; C2-C24alkenyl; phenyl; or C7-C9phenylalkyl. n is 1, 2, 3, 4, 5, 6, 7 or 8, B1 is a direct bond or a bridging member, and D1 is a radical of a fluorescent whitening agent, a process for their preparation and their use as fluorescent whitening agents, especially in detergent compositions.
本发明涉及表面上具有式(I)中共价结合的自由基的功能化纳米颗粒,其中纳米颗粒为SiO2、AI2O3或混合SiO2和AI2O3纳米颗粒,R1和R2独立地为氢;C1-C25烷基,其可以被-O-或-S-中断;C2-C24烯基;苯基;C7-C9苯基烷基;-OR5;式(II);式(III);或式(IV),其中R5为氢;C1-C25烷基,其可以被-O-或-S-中断;C2-C24烯基;苯基;C7-C9苯基烷基;式(V);或纳米颗粒表面,R6和R7独立地为氢;C1-C25烷基,其可以被-O-或-S-中断;C2-C24烯基;苯基;C7-C9苯基烷基;或-OR5,而R8、R9和R10独立地为氢;C1-C25烷基,其可以被-O-或-S-中断;C2-C24烯基;苯基;或C7-C9苯基烷基。n为1、2、3、4、5、6、7或8,B1为直接键或桥接成员,D1为荧光增白剂自由基,一种其制备方法以及它们在荧光增白剂中的使用,特别是在洗涤剂组合物中的使用。