Polymer matrices heat and light stabilized with novel benzopheno

Details Polymer matrices heat and light stabilized with novel benzopheno Polymer matrices heat and light stabilized with novel benzopheno

1990-12-13

1993-04-06

Morgan, Kriellion S.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Processes of preparing a desired or intentional composition...

524400, 524443, C08K 534

Patent

active

052004449

ABSTRACT:
Polymer matrices, e.g., halogenated polymers such as PVC, polyolefins, polystyrenes, polyalkadienes, etc., are stabilized against the adverse effects of heat and light, by incorporating therein an effective stabilizing amount of a compound of the formula (I): ##STR1## in which n is a number ranging from 1 to 3, and R is a methyl radical or a hydrogen atom.

REFERENCES:
patent: 5034533 (1991-07-01), Gay et al.

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