Synthetic fibers lubricated with heteric copolymer of tetrahydrofuran and C3 to C4 alkylene oxide

Claim 2

A lubricated synthetic textile yarn comprising a polyester, polyamide, or polyacrylic fiber or mixtures thereof and present on the surface thereof, a lubricating amount of an oxyalkylene compound of the formula: Y[A].sub.x wherein Y is the residue formed by the removal of x atoms of active hydrogen from an organic compound initiator having a total of not more than 20 carbon atoms and free of elements other than carbon, hydrogen, and oxygen; A is a heteric mixture of at least one C 3 to C 4 alkylene oxide and tetrahydrofuran residues derived from the reaction of (1) tetrahydrofuran and (2) at least one of propylene oxide or butylene oxide in the respective ratio by weight of (1) to (2) of 1:99 to 99:1; and x is an integer of 2 to about 6; and wherein the total molecular weight of said compound is about 500 to about 10,000.

Claim 3

The lubricated fiber of claim 1 wherein Y is the residue of a C 2 to C 8 polyhydric alcohol.

Claim 4

The lubricated fiber of claim 2 wherein said polyhydric alcohol is selected from the group consisting of ethylene glycol, diethylene glycol, propylene glycol, 1,4-butane diol, glycerol, trimethylolpropane, pentaerythritol, and sorbitol.

Claim 5

The lubricated fiber of claim 3 wherein said polyhydric alcohol is ethylene glycol, and C 3 to C 4 alkylene oxide is propylene oxide, said oxyalkylene compound has a molecular weight of about 1000 to about 6000 and said lubricating amount of oxyalkylene compound is about 0.1 percent by weight to about 1 percent by weight based upon the weight of said fiber.

Claim 6

In a process for lubricating synthetic textile fibers with an oxyalkylene compound fiber lubricant, the improvement wherein a polyether polyol is applied in a lubricating amount to said fibers from an aqueous dispersion wherein said polyether polyol is a compound having the formula: Y[A].sub.x wherein Y is the residue formed by the removal of x atoms of active hydrogen from an organic compound initiator having a total of not more than 20 carbon atoms and free of elements other than carbon, hydrogen, and oxygen; A is a heteric mixture of (1) tetrahydrofuran and (2) at least one C 3 to C 4 alkylene oxide residue derived from the reaction of tetrahydrofuran and at least one of propylene oxide or butylene oxide in the respective ratio by weight of (1) to (2) of 1:99 to 99:1; x is an integer of 2 to about 6; and the total molecular weight of said oxyalkylene compound is about 500 to about 10,000.

Claim 7

In a process for lubricating synthetic textile fibers with an oxyalkylene compound fiber lubricant, the improvement wherein a polyether polyol is applied in a lubricating amount to said fibers from an aqueous dispersion wherein said polyether polyol is a compound having the formula: Y[A].sub.x wherein Y is the residue formed by the removal of x atoms of active hydrogen from an organic compound initiator having a total of not more than 20 carbon atoms and free of elements other than carbon, hydrogen, and oxygen; A is a heteric mixture of (1) tetrahydrofuran and (2) at least one C 3 to C 4 alkylene oxide residue derived from the reaction of tetrahydrofuran and at least one of propylene oxide or butylene oxide in the respective ratio by weight of (1) to (2) of 1:99 to 99:1; x is an integer of 2 to about 6; and the total molecular weight of said oxyalkylene compound is about 500 to about 10,000.

Claim 8

The process of claim 5 wherein Y is the residue of a C 2 to C 8 polyhydric alcohol.

Claim 9

The process of claim 6 wherein said polyhydric alcohol initiator is selected from the group consisting of ethylene glycol, diethylene glycol, propylene glycol, 1,4-butane diol, glycerol, trimethylolpropane, pentaerythritol, and sorbitol.

Claim 10

The process of claim 7 wherein said synthetic fibers are selected from the group consisting of polyester, polyamide, and polyacrylic fibers.

Claim 11

The process of claim 8 wherein said oxyalkylene compound is derived from the reaction of 1,2-propylene oxide and said tetrahydrofuran.

Claim 12

The process of claim 8 wherein said oxyalkylene compound initiator is ethylene glycol and said oxyalkylene compound has a molecular weight of about 1000 to about 6000.

Claim 13

A lubricated synthetic textile fiber comprising a polyester, polyamide, or polyacrylic fiber or mixtures thereof and present on the surface thereof, a lubricating amount of an oxyalkylene compound of the formula: Y[(A).sub.m (B).sub.n ].sub.x wherein Y is the residue formed by the removal of x atoms of active hydrogen from an organic compound initiator having a total of not more than 20 carbon atoms and free of elements other than carbon, hydrogen, and oxygen; A is a heteric mixture of tetrahydrofuran residues and at least one C 3 to C 4 alkylene oxide residue derived from the reaction of tetrahydrofuran and said oxides in the respective ratio by weight of 1:99 to 99:1; B is at least one of a lower alkylene oxide selected from the group consisting of ethylene oxide, propylene oxide, and butylene oxide; x is an integer of 2 to about 6; and wherein m and n are such that the total molecular weight of said compound is about 1000 to about 10,000.

Claim 14

A lubricated synthetic textile fiber comprising a polyester, polyamide, or polyacrylic fiber or mixtures thereof and present on the surface thereof, a lubricating amount of an oxyalkylene compound of the formula: Y[(A).sub.m (B).sub.n ].sub.x wherein Y is the residue formed by the removal of x atoms of active hydrogen from an organic compound initiator having a total of not more than 20 carbon atoms and free of elements other than carbon, hydrogen, and oxygen; A is a heteric mixture of tetrahydrofuran residues and at least one C 3 to C 4 alkylene oxide residue derived from the reaction of tetrahydrofuran and said oxides in the respective ratio by weight of 1:99 to 99:1; B is at least one of a lower alkylene oxide selected from the group consisting of ethylene oxide, propylene oxide, and butylene oxide; x is an integer of 2 to about 6; and wherein m and n are such that the total molecular weight of said compound is about 1000 to about 10,000.

Claim 15

The lubricated fiber of claim 11 wherein Y is the residue of a C 2 to C 8 polyhydric alcohol.

Claim 16

The lubricated fiber of claim 12 wherein said polyhydric alcohol is selected from the group consisting of ethylene glycol, diethylene glycol, propylene glycol, 1,4-butane diol, glycerol, trimethylolpropane, pentaerythritol, and sorbitol.

Claim 17

The lubricated fiber of claim 13 wherein said polyhydric alcohol is ethylene glycol, said C 3 to C 4 alkylene oxide in A is 1,2-propylene oxide, said oxyalkylene compound has a molecular weight of about 1000 to about 6000, and said lubricating amount of oxyalkylene compound is about 0.1 percent by weight to about 1 percent by weight based upon the weight of said fiber.

Claim 18

In a process for lubricating synthetic textile fibers with a oxyalkylene compound fiber lubricant, the improvement wherein a polyether polyol is applied in a lubricating amount to said fibers from an aqueous dispersion wherein said polyether polyol is a compound having the formula: Y[(A).sub.m (B).sub.n ].sub.x wherein Y is the residue formed by the removal of x atoms of active hydrogen from an organic compound initiator having a total of not more than 20 carbon atoms and free of elements other than carbon, hydrogen, and oxygen; A is a heteric mixture of tetrahydrofuran residues and at least one C 3 to C 4 alkylene oxide residue derived from the reaction of tetrahydrofuran and said oxides in the respective ratio by weight of 1:99 to 99:1; B is at least one of a lower alkylene oxide selected from the group consisting of ethylene oxide, propylene oxide, and butylene oxide; x is an interger of 2 to about 6; and wherein m and n are such that the total molecular weight of said oxyalkylene compound is about 500 to about 10,000.

Claim 19

In a process for lubricating synthetic textile fibers with a oxyalkylene compound fiber lubricant, the improvement wherein a polyether polyol is applied in a lubricating amount to said fibers from an aqueous dispersion wherein said polyether polyol is a compound having the formula: Y[(A).sub.m (B).sub.n ].sub.x wherein Y is the residue formed by the removal of x atoms of active hydrogen from an organic compound initiator having a total of not more than 20 carbon atoms and free of elements other than carbon, hydrogen, and oxygen; A is a heteric mixture of tetrahydrofuran residues and at least one C 3 to C 4 alkylene oxide residue derived from the reaction of tetrahydrofuran and said oxides in the respective ratio by weight of 1:99 to 99:1; B is at least one of a lower alkylene oxide selected from the group consisting of ethylene oxide, propylene oxide, and butylene oxide; x is an interger of 2 to about 6; and wherein m and n are such that the total molecular weight of said oxyalkylene compound is about 500 to about 10,000.

Claim 20

The process of claim 15 wherein y is the residue of a C 2 to C 8 polyhydric alcohol.

Claim 21

The process of claim 16 wherein said polyhydric alcohol initiator is selected from the group consisting of ethylene glycol, diethylene glycol, propylene glycol, 1,4-butane diol, glycerol, trimethylolpropane, pentaerythritol, and sorbitol.

Claim 22

The process of claim 17 wherein said synthetic fibers are selected from the group consisting of polyester, polyamide, and polyacrylic fibers and wherein said polyether is derived from the reaction of said 1,2-propylene oxide and said tetrahydrofuran in A with ethylene oxide in B and wherein as said initiator is ethylene glycol and said lubricant has a molecular weight of about 1000 to about 6000.