Organic compounds

Details Organic compounds Organic compounds

1982-07-02

1983-11-15

Kight, III, John

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

Synthetic resins

Processes of preparing a desired or intentional composition...

524101, 524103, 546234, 546236, 546237, 546239, 544219, C08K 534, C07D25119, C07D21132

Patent

active

044156871

ABSTRACT:
1,3-dihydroxy-4,6-bis-4'-(2',2',6',6',-tetramethylpiperidyl) benzene, its 1'-alkyl or 1'-(substituted alkyl) derivatives and monomeric or polymeric products derived from these compounds by substitution of 1- and 3-hydroxy groups and/or by the linking of hydroxy groups on adjacent units through a bridging groups, are useful as light and heat stabilizers for polymeric organic materials.
Corresponding bis(3',4'-dehydro) unsaturated compounds are useful as intermediates.

REFERENCES:
patent: 4251435 (1981-02-01), Son et al.
patent: 4315848 (1982-02-01), Dexter et al.
patent: 4356287 (1982-10-01), Loffelman et al.

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