Patent ID: 6908579

Claim:
A process for making yarn comprising the steps of: A. extruding polymer to make yarn; B. to said yarn applying a spin finish composition comprising at least about 10 percent by weight based on said spin finish composition of components (a) and (b) having the formula R 1 —(CO) x —O—(CH(R 2 )—CH 2 —O) y —(CO) z —R 3 wherein each of R 1 and R 3 is selected from the group consisting of hydrogen or an alkyl group having from one to 22 carbon atoms or an alkylene hydroxy group having one to 22 carbon atoms, x is zero or one, R 2 may vary within said component (a) or said component (b) and is selected from the group consisting of hydrogen or an alkyl group having from one to four carbon atoms, y is zero, or from one to 25, z is zero or one, in said component (a), x and z are equal to zero and the average molecular weight of said component (a) is less than or equal to 1,900 and if R 2 varies, component (a) is a random copolymer; and in said component (b), at least one of said x or z is equal to one or said component (b) is a complex polyoxyethylene glyceride-containing compound having greater than 10 polyoxyethylene units; up to about five percent by weight based on the spin finish composition of a component (c) of an ethyoxylated silicone; and at least about one percent by weight based on the spin finish composition of a component (d) having the formula R 4 (CH 2 O(CO) a R 5 ) b wherein R 4 is —C— or —COC—; a is 0 or 1; R 5 is —H; from —CH 3 to —C 18 H 37 ; or —CH(R 6 )—CH 2 O; b is 4 or 6; and R 6 is —H or —CH 3 or —H and —CH 3 in a ratio of 10:90 to 90:10; and C. drawing said yarn.