Oxidation stable polyoxyalkylene fiber lubricants

Abstract

Abstract Lubricants for synthetic fibers such as polyester and nylon are disclosed which are improved oxidation stable polyoxyalkylene lubricant compounds. Such lubricant compounds can be used alone as textile fiber lubricants or in combination with other polyoxyalkylene compounds useful as fiber lubricants but which are subject to oxidative degradation under conditions of heating at temperatures at least above 200° C. An improved textile fiber is produced by the use of such fiber lubricants in conventional processes for producing continuous filament, false twist, textured yarn as well as other type yarns. The improved oxidation stable homopolymer and copolymer, i.e., block or heteric polyoxyalkylene lubricant compounds have the formulas: ##STR1## and can be used alone or in mixtures or in a mixture of an effective proportion thereof of at least 25% by weight based on the total weight of the mixture with one or more of any prior art polyoxyalkylene fiber lubricant compounds but preferably with one or more polyoxyalkylene compounds selected from the group consisting of prior art compounds having the formulas: ##STR2## R is individually selected from alkyl groups of 1 to about 21 carbon atoms preferably about 7 to about 21 carbon atoms and most preferably about 12 to about 18 carbon atoms. In lubricants I, III, V and VI, R 1 and R 2 are the residue of the same or different alkylene units and in lubricant II, R 1 and R 2 are different alkylene units, all individually selected from the group consisting of the residue of ethylene oxide, propylene oxide, butylene oxide and an aromatic glycidyl ether, R 3 is the residue of a difunctional phenol, R 4 is hydrogen, an acyl or alkyl group and where alkyl, derived from an aliphatic monofunctional alcohol having 1 to about 21 carbon atoms, preferably about 4 to about 18 carbon atoms and most preferably about 4 to about 12 carbon atoms or where acyl derived from an aliphatic monocarboxylic acid of 2 to about 21 carbon atoms, preferably about 4 to about 18 carbon atoms and most preferably about 6 to about 12 carbon atoms, R 5 is the residue of an aromatic glycidyl ether, preferably a phenyl glycidyl ether and n or m + n have a value to produce a molecular weight of about 300 to about 2000, preferably about 600 to about 2000 and most preferably about 800 to about 1800.

Inventors

• 👤 David Dudley Newkirk
• 👤 Robert Bernard Login
• 👤 Basil Thir

Bibliographic Details