US 5,683,612 AGranted

Spin finishes for synthetic filament fibers

AssigneeHenkel Kommanditgesellschaft auf Aktien

InventorsPaul Birnbrich, Norbert Bialas, Ulrich Eicken, Raymond Mathis

Life of this patent

Estimating the term…

Loading patent…

Abstract

Spin finishes for synthetic filament fibers which contain a water-soluble polyether carbonate of the formula I: R.sup.1 --O--((R.sup.2 --O--).sub.n COO--).sub.m R.sup.3 (I) in which R.sup.1 represents R.sup.4 (O--CH.sub.2 --CH.sub.2 --).sub.x O--CO--, CH.sub.3 --O--CO, CH.sub.3 --CH.sub.2 --O--CO, or hydrogen; R.sup.2 is a difunctional hydrocarbon radical containing 1 to 22 carbon atoms which may be saturated or unsaturated, linear or branched; R.sup.3 represents R.sup.4 (O--CH.sub.2 --CH.sub.2 --).sub.y ; R.sup.4 is a monofunctional hydrocarbon radical containing 1 to 22 carbon atoms which may be saturated or unsaturated, linear or branched; n is an integer of 1 to 100; m is an integer of 1 to 50; x is an integer or 11 to 100; and y is an integer of 11 to 100.

Claims20

Dependent claims

A spin finish for synthetic filament fibers wherein the spin finish comprises a lubrication effective quantity of at least one water-soluble polyether carbonate of the formula I:

R.sup.1 --O--((R.sup.2 --O--).sub.n COO--).sub.m R.sup.3 (I)
in which
R.sup.1 represents R.sup.4 (O--CH.sub.2 --CH.sub.2 --).sub.x O--CO--, CH.sub.3 --O--CO, CH.sub.3 --CH.sub.2 --O--CO, or hydrogen;
R.sup.2 is a difunctional hydrocarbon radical containing 1 to 22 carbon atoms which may be saturated or unsaturated, linear or branched;
R.sup.3 represents R.sup.4 (O--CH.sub.2 --CH.sub.2 --).sub.y ;
R.sup.4 is a monofunctional hydrocarbon radical containing 1 to 22 carbon atoms which may be saturated or unsaturated, linear or branched;
n is an integer of 1 to 100;
m is an integer of 1 to 50;
x is an integer of 11 to 100;
and
y is an integer of 11 to 100.

8 more elements

Dependencies are inferred from the claim text.