Low molecular weight complexes of lactams and polyhydroxy aromatic compounds
AssigneeGAF Corporation
InventorsJoseph P. Copes, David I. Randall
Life of this patent
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Abstract
A low molecular weight complex of a lactam and a hydroxy phenolic compound having the formula: ##SPC1## Wherein n is an integer of 3 to 5; W is hydrogen or alkyl having from 1 to 8 carbon atoms including cycloalkyl substituents; each R or R.sub.2 is alkoxy of from 1 to 4 carbon atoms, hydrogen, halogen, hydroxyl, nitro, cyano, carboxylamino, alkylhydroxy having from 1 to 4 carbon atoms or alkyl having from 1 to 10 carbon atoms, and wherein R.sub.2 can also be alaninyl or a hydroxy benzyl radical having the formula ##SPC2## Where R' is hydroxyl, cyano, alkyl having from 1 to 6 carbon atoms, hydrogen or halogen and wherein at least one R or R.sub.2 is hydroxy when R.sub.2 is other than a hydroxy benzyl radical.
Claims12
A low molecular weight crystalline lactam.hydroxyphenol complex having the formula:
- ##SPC6##
- wherein n is an integer of 3 to 5;
- W is hydrogen or alkyl having from 1 to 8 carbon atoms, including cycloalkyl substituents;
- each R and R.sub.2 is alkoxy of from 1 to 4 carbon atoms, amido, alkylhydroxy of from 1 to 4 carbon atoms, cyano, nitro, hydrogen, halogen, hydroxy or alkyl of from 1 to 10 carbon atoms and wherein R.sub.2 can also be alaninyl or a hydroxybenzyl radical having the formula:
- ##SPC7##
- where R' is hydrogen, hydroxyl, cyano, halogen or alkyl of from 1 to 6 carbon atoms, and wherein at least one R is hydroxyl when R.sub.2 is other than a hydroxyl or a hydroxybenzyl radical.
Dependencies are inferred from the claim text.