Abstract: Polyamide carpet fibers coated with a certain class of fluorine-containing addition polymer are described. The coating is chemically bonded to the fiber surface through amide linkages (--NHCO--) of the polyamide. The coating imparts antisoiling properties of a permanent nature to the fibers. Where applied to carpet yarn, the coating has good retention through carpet dyeing operations and does not significantly interfere with the ability of the carpet to take up dye, even in the case of foam dyeing which is particularly sensitive to fluorocarbon coatings.

Abstract: Nylon fibers having a soil-resistant coating comprising the reaction product of polymeric zirconium oxide and hydrocarboxylic acid or salt thereof, for example, sodium lactate. The coating is more durable than if the acid or salt thereof are omitted therefrom.

Abstract: A process for preparing acetonitrile by high temperature reaction of carbon monoxide, hydrogen and ammonia over a transition metal in reduced valence state as catalyst.

Abstract: A process is described for converting methyl amines to acetonitrile by heating with a transition metal catalyst in the presence of hydrogen.