N-(2,2,6,6,-tetraalkylpiperidinyl-4)-N'-phenyl oxalic acid diami

Details N-(2,2,6,6,-tetraalkylpiperidinyl-4)-N'-phenyl oxalic acid diami N-(2,2,6,6,-tetraalkylpiperidinyl-4)-N'-phenyl oxalic acid diami

1987-11-05

1990-04-10

Kight, John

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

Synthetic resins

Processes of preparing a desired or intentional composition...

524102, 524103, 546186, 546187, 546188, 546190, 546 18, 546226, 546224, 546227, 252403, C08K 534, C07D40112

Patent

active

049161750

ABSTRACT:
Compounds are provided which are useful as light stabilizers for polymeric materials and which have the formula ##STR1## wherein R.sub.1, R.sub.2 and R.sub.4 are organic radicals, R.sub.3 and R.sub.15 are hydrogen or organic radicals and R is hydrogen, oxygen or an organic radical.

REFERENCES:
patent: 4730017 (1988-03-01), Avar
patent: 4780493 (1988-10-01), Cantatore et al.

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