Oligomers of 2,2,6,6-tetramethylpiperidinol, polycarboxylic acid esters and synthetic polymer compositions.

摘要

Oligomers of 2,2,6,6-tetramethylpiperidinol polycarboxylic acid esters are provided having the formula:
<Chemistry id="chema01" num="0001"><Image id="ia01" he="36" wi="84" file="IMGA0001.TIF" imgContent="chem" imgFormat="TIFF" inline="no" /></Chemistry>wherein:
<UnorderedLists id="ula01" listStyle="none"><ListItem>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;
<Chemistry id="chema02" num="0002"><Image id="ia02" he="9" wi="28" file="IMGA0002.TIF" imgContent="chem" imgFormat="TIFF" inline="no" /></Chemistry>wherein R<Sub>3</Sub> 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;</ListItem><ListItem>R is alkylene having from two to about twelve carbon atoms; cycloalkylene having from three to about twelve carbon atoms; phenylene having from six to about twenty carbon atoms; mixed alkylenecycloalkylene or alkylene phenylene or oxyalkylene having from two to about twelve carbon atoms;
<Chemistry id="chema03" num="0003"><Image id="ia03" he="16" wi="53" file="IMGA0003.TIF" imgContent="chem" imgFormat="TIFF" inline="no" /></Chemistry>wherein R<Sub>4</Sub> is alkyl having from one to about six carbon atoms;</ListItem><ListItem>R<Sub>2</Sub> is hydrogen; oxyl; alkyl having from one to about twenty carbon atoms; epoxyalkyl having from two to about six carbon atoms or hydroxyalkyl having from one to about six carbon atoms; acyl having from one to about six carbon atoms; aroyl having from seven to about twenty carbon atoms; and alkaryl having from seven to about twenty carbon atoms; (Continuation next page)</ListItem></UnorderedLists>