Coupled benzotriazole and benzophenone UV absorbers

Details Coupled benzotriazole and benzophenone UV absorbers Coupled benzotriazole and benzophenone UV absorbers

1994-07-06

1995-11-14

Morris, Patricia L.

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

548260, 548261, C07D24920

Patent

active

054668190

ABSTRACT:
Provided are ultraviolet stabilizers which are diphenylmethane compounds of the formula: ##STR1## wherein: R.sub.1 and R.sub.2 are independently C.sub.1 to C.sub.8 alkyl, cyclopentyl, cyclohexyl or cumyl; and X is selected from the group consisting of hydrogen, halogen, C.sub.1 to C.sub.12 alkyl and C.sub.1 to C.sub.12 alkoxy. The invention also pertains to a process for their preparation and stabilized polymer blends containing the stabilizers.

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