Mixed 2,2,6,6-tetramethyl piperidinyl carboxylic acid ester and

Details Mixed 2,2,6,6-tetramethyl piperidinyl carboxylic acid ester and Mixed 2,2,6,6-tetramethyl piperidinyl carboxylic acid ester and

1983-09-30

1986-10-28

Kight, John

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

Synthetic resins

Processes of preparing a desired or intentional composition...

524103, 546 19, 546188, C08K 534

Patent

active

046199586

ABSTRACT:
Mixed light stabilizers for synthetic polymers are provided having the formula ##STR1## wherein: R is a polyvalent group selected from the group consisting of aliphatic hydrocarbon groups having from one to about twenty carbon atoms, cycloaliphatic hydrocarbon groups having from three to about sixteen carbon atoms and aromatic hydrocarbon groups having from six to about thirty carbon atoms; such groups substituted with from one to about six groups selected from the group consisting of hydroxy, acyloxy, and halogen; and N(C.sub.n.sbsb.1 H.sub.2n.sbsb.1).sbsb.3 where n.sub.1 is a number from one to five;

REFERENCES:
patent: 3640928 (1972-02-01), Murayama et al.
patent: 4102858 (1978-07-01), Minagawa et al.
patent: 4136081 (1979-01-01), Minagawa et al.
patent: 4344877 (1982-08-01), Nickles et al.

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