Coatings materials stabilized against the action of light
    8.
    发明授权
    Coatings materials stabilized against the action of light 失效
    涂料材料稳定,抵抗光的作用

    公开(公告)号:US4775707A

    公开(公告)日:1988-10-04

    申请号:US65655

    申请日:1987-06-22

    摘要: Blocked benzotriazoles of the formula I or II ##STR1## where x is 1 or 2, R.sup.1 in the case of x=1 and in the formula II is an acyl group of the formula --CO--R.sup.5, a sulfonyl group of the formula --SO.sub.2 --R.sup.6, a phosphoryl group of the formula --P(O).sub.r (R.sup.14)(R.sup.15), and in the case of x=2 is --CO-- or a diacyl group of the formula --CO--CO-- or --CO--R.sup.7 --CO--, and R.sup.2, R.sup.3, R.sup.4, R.sup.5, R.sup.6, R.sup.7, R.sup.14 and R.sup.15 have the meanings defined in claim 1, are crypto light stabilizers which can be activated by short-wave irradiation. Their use in coating materials is of interest in cases in which light stabilizers containing the free OH compounds have disadvantages with regard to their application.

    摘要翻译: 式I或II的封闭的苯并三唑其中x为1或2,在x = 1的情况下为R 1,在式II中为式-CO-R 5的酰基,磺酰基 式-SO 2 -R 6的基团,式-P(O)r(R 14)(R 15)的磷酰基,在x = 2的情况下是-CO-或式-CO- CO-或-CO-R 7 -CO-,R 2,R 3,R 4,R 5,R 6,R 7,R 14和R 15具有权利要求1中定义的含义,是可以通过短波照射活化的暗光稳定剂。 在包含游离OH化合物的光稳定剂在其应用方面具有缺点的情况下,它们在涂料中的用途是令人感兴趣的。