Oligomers of 2,2,6,6-tetramethylpiperidinol polycarboxylic acid

Details Oligomers of 2,2,6,6-tetramethylpiperidinol polycarboxylic acid Oligomers of 2,2,6,6-tetramethylpiperidinol polycarboxylic acid

1983-11-01

1985-07-16

Kight, John

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

Synthetic resins

Processes of preparing a desired or intentional composition...

524103, 524291, 524326, 524334, 524335, 524339, 524341, 524342, 524349, 528289, 546 19, 546187, 546188, 546190, 546207, 546242, C08K 531

Patent

active

045297606

ABSTRACT:
Oligomers of 2,2,6,6-tetramethylpiperidinol polycarboxylic acid esters are provided having the formula: ##STR1## wherein: Z is the residue of an aliphatic or aromatic or nitriloaliphatic or hydroxy aliphatic polycarboxylic acid having from three to six carboxylic acid groups and from one to thirty carbon atoms; ##STR2## wherein R.sub.3 is hydrogen, alkyl and hydroxyalkyl having from one to about twenty carbon atoms; cycloalkyl having from six to about twenty carbon atoms; aryl having from six to about twenty carbon atoms; or cycloalkylene with the N in the ring and having from two to five carbon atoms;

REFERENCES:
patent: 4233412 (1980-11-01), Rody et al.
patent: 4312804 (1982-01-01), Minagawa et al.
patent: 4336183 (1982-06-01), Nakahara et al.
patent: 4396735 (1983-08-01), Minagawa et al.

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