Coating material stabilized against the action of light

Details Coating material stabilized against the action of light Coating material stabilized against the action of light

1989-10-24

1991-07-09

Morgan, Kriellion

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

548261, C07D24916, C07D40300

Patent

active

050307312

ABSTRACT:
Blocked benzotriazoles of the formula I or II ##STR1## wherein 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.

REFERENCES:
patent: 3600397 (1971-08-01), Seki et al.
patent: 4247628 (1981-01-01), Uchida et al.
patent: 4775707 (1988-10-01), Slongo et al.

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