COMPOSITION CONTAINING FLUORINATED COPOLYMER

摘要

Disclosed is a composition which can impart excellent water-absorbing properties, oil-repellent properties, stain-proof properties and stain-releasing properties to woven fiber fabrics and the like, and which has the same excellent properties as those of conventional compositions in spite of a fact that the number of carbon atoms in an Rf group is less than 8 that is smaller than those in the conventional compositions. The composition comprises: (1) a fluorinated copolymer which comprises, as essential components, (a) a fluorinated monomer represented by general formula CH2=C(-X)-C(=O)-Y-[-(CH2)m-Z-]p-(CH2)n-Rf (I) [wherein X represents a hydrogen atom, a methyl group, a fluorine atom, a chlorine atom, a bromine atom, an iodine atom or the like; Z represents a direct bond, -S- or -SO2-; Rf represents a fluoroalkyl group having 1-6 carbon atoms; m represents 1-10; n represents 0-10; and p represents 0 or 1] and (b) an alkoxy-group-containing monomer represented by general formula CH2=C(X')-C(=O)-O-(RO)q-H (II) [wherein X' represents a hydrogen atom or a methyl group; R represents an alkylene group having 2-4 carbon atoms in which each of some or all of hydrogen atoms may be substituted by a hydroxy group; and q represents an integer of 1-50], and which does not contain any amino-group-containing monomer; (2) a block isocyanate compound; and (3) a liquid medium.