Abstract:
The soil and stain repellency of extruded filaments of a synthetic resin can be improved by incorporating in the resin a small amount, about 1%, of an amphipathic compound having from one to four fluoroalkyl groups pendent from an organic radical. The repellency is provided by the fluoroalkyl groups, which tend to be concentrated at the surface of the fiber.
Abstract:
FLUOROPERHALOALKYL ISOCYANATES AND FLUOROPERHALOAZAOLEFINS ARE PREPARED BY REACTING A FLUOROPERHALOGENATED CARBONYL COMPOUND WITH A CYANOGEN HALIDE AND AN IONIZABLE FLUORIDE SALT IN THE PRESENCE OF AN APROTIC, POLAR LIQUID REACTION MEDIUM. FOR EXAMPLE, (CF3)2CFNO AND
(CF3>2CFN=C(CF3)2
ARE PREPARED BY REACTING HEXAFLUOROACETONE WITH CYANOGEN CHLORIDE AND POTASSIUM FLUORIDE IN THE PRESENCE OF ACETONITRILE. A SEPARATE MIXTURE OF THE ISOCYANATE AND THE AZAOLEFIN IS NORMALLY OBTAINED, BUT THE REACTION CONDITIONS CAN BE CONTROLLED TO FAVOR FORMATION OF EITHER PRODUCT.
Abstract:
THE SOIL AND STAIN REPELLENCY OF EXTRUDED FILAMENTS OF A SYNTHETIC RESIN CAN BE IMPROVED BY INCORPORATING IN THE RESIN A SMALL AMOUNT, ABOUT 1%, OF AN AMPHIPHATIC COMPOUND HAVING FROM ONE TO FOUR FLUOROALKYL GROUPS PENDENT FROM AN ORGAINC RADICAL. THE REPELLENCY IS PROVIDED BY THE FLUOROALKYL GROUPS, WHICH TEND TO BE CONCENTRATED AT THE SURFACE OF THE FIBER.
Abstract:
THIS INVENTION RELATES TO A NOVEL CLASS OF FLUORINE CONTAINING ISOCYANURATE ESTERS DERIVED FROM REACTING TRIS(2HYDROXYETHYL)ISOCYANURATE WITH HEREINAFTER DEFINED FLUORO ACIDS, AND TRIS(2-CARBOXYETHYL)ISOCYANURATE WITH HEREINAFTER DEFINED FLUORO ALCOHOLS.