Bleach activators
    2.
    发明授权
    Bleach activators 失效
    漂白活化剂

    公开(公告)号:US5840667A

    公开(公告)日:1998-11-24

    申请号:US776965

    申请日:1997-02-05

    摘要: A bleach composition comprises a peroxygen bleach source (for instance hydrogen peroxide, a perborate or a percarbonate salt) and an activator of the formula I: ##STR1## in which X is O or S; one of E and G is --A-- and the other is --N(R.sup.2)--; A is --O-- or --S--; R.sup.1 is a C.sub.1-50 alkylene group (including cyclo alkylene), optionally interrupted by an arylene group and/or by one or more ether, ester, anhydride, thioether, secondary or tertiary amine, amide or imide linkage, an arylene group or an alkarylene group; R.sup.2, is selected from H, alkyl, aralkyl, alkaryl and aryl; R.sup.3 is alkyl, aralkyl, alkaryl or aryl, or, when E is --N(R.sup.2)--, H; in which R.sup.2 and R.sup.3 can be joined so as to form a heterocyclic ring with the atoms to which they are attached, and/or in which R.sup.1 can be joined with R.sup.2 or R.sup.3 ; and L is a leaving group which may optionally be joined to any of R.sup.1, R.sup.2 and R.sup.3. The activator gives the composition good bleaching at low temperatures, minimal dye and fabric damage and which bleach a wide range of oxidisable stains.

    摘要翻译: PCT No.PCT / GB95 / 01847 Sec。 371日期1997年2月5日 102(e)日期1997年2月5日PCT提交1995年8月3日PCT公布。 出版物WO96 / 04244 日期1996年2月15日漂白组合物包含过氧漂白源(例如过氧化氢,过硼酸盐或过碳酸盐)和式I的活化剂:其中X为O或S; E和G之一是-A-,另一个是-N(R 2) - ; A是-O-或-S-; R1是任选地被亚芳基和/或一个或多个醚,酯,酸酐,硫醚,仲胺或叔胺,酰胺或酰亚胺键连接的C1-50亚烷基(包括环亚烷基),亚芳基或 亚烷基 R2选自H,烷基,芳烷基,烷芳基和芳基; R 3是烷基,芳烷基,烷芳基或芳基,或当E是-N(R 2) - ,H; 其中R 2和R 3可以连接成与它们所连接的原子形成杂环,和/或其中R 1可以与R 2或R 3连接; 并且L是可以任选地连接到R 1,R 2和R 3中的任一个的离去基团。 活化剂使组合物在低温下具有良好的漂白,染色和织物损伤最小,并且漂白范围广泛的可氧化污渍。