초록 ▼

Polycarboxybenzenes esterified with certain partially fluorinated alcohols and with hydroxyl-containing organic radicals such as 2-hydroxyethyl, glyceryl and chlorohydryl or bromohydryl, leaving no free carboxy groups, when incorporated with PET or nylon fibers as by contact in a liquid medium, thes

Polycarboxybenzenes esterified with certain partially fluorinated alcohols and with hydroxyl-containing organic radicals such as 2-hydroxyethyl, glyceryl and chlorohydryl or bromohydryl, leaving no free carboxy groups, when incorporated with PET or nylon fibers as by contact in a liquid medium, these compounds concentrate at the fiber surface especially if the fiber is annealed (heated without abrading above its Tg). A relatively durable oil and water repellency is thus imparted to the fiber; which durability can be enhanced by contacting said compound in situ in the fiber with a polyepoxide or polyisocyanate. Alternatively, partially fluorinated N,N-disubstituted amides, esterified also with the same above-cited hydroxyl-containing organic radicals, can be used. The resulting fibers can be dyed, after or together with said treatment imparting repellency.

대표청구항 ▼

A compound having the formula [Figure] wherein the attachment of the fluorinated radicals and the radicals CO2B to the nucleus is in asymmetrical positions with respect to rotation about the axis through the center of the nucleus; wherein “X”is fluorine, or perfluoroalkoxy of 1 to 6 carbon atoms, an

A compound having the formula [Figure] wherein the attachment of the fluorinated radicals and the radicals CO2B to the nucleus is in asymmetrical positions with respect to rotation about the axis through the center of the nucleus; wherein “X”is fluorine, or perfluoroalkoxy of 1 to 6 carbon atoms, and m has arithmetic mean between 2 and 20; n is zero or unity; “W”and “Y”are alkylene, cycloalkylene or alkyleneoxy radicals of combined chain length from 2 to 20 atoms; (CF2)m and “Y”have each at least 2 carbon atoms in the main chain; “Z”is oxygen and p is 1, or “Z”is nitrogen and p is 2; q is an integer of at least 2 but not greater than 5; “B”is CH2RCHOH or is CH2RCHOCH2RCHOH where “R”is hydrogen or methyl, or “B”is CH2CH(OH)CH2Q where Q is halogen, hydroxy, or nitrile; or “ B”is CH2CH(OH)CH2OCH2CH(OH)CH2Q; and r is an integer of at least 1 but not greater than q; and X(CF2)m, W and Y are straight chains, branched chains or cyclic; and wherein the substituent chains of the active general formulas are the same or different; said compound being capable, upon contact thereof－as a solution or dispersion－with fibers of polyethylene terephthalate or of nylon and heating, of imparting water and oil repellency to such fibers.