Soil repellent fluorinated esters of multi-ring anhydride systems.

摘要

Fluorinated esters based on multi-ring anhydride systems are disclosed which have excellent anti-soiling properties, durability and resistance to laundering. The compounds are represented by the formula
<Chemistry id="chema01" num="0001"><Image id="ia01" he="29" wi="59" file="IMGA0001.TIF" imgContent="chem" imgFormat="TIFF" inline="no" /></Chemistry>wherein n is 2 to 4, Q is a linking group such as -CO-, -O-, or (C<Sub>a</Sub>H<Sub>2a+2-n</Sub>) (O<Sub>2</Sub>C)<Sub>n</Sub>,

R<Sub>f</Sub> is a fluorinated radical, and R is derived from an epoxide such as ethylene oxide or epichlorohydrin. Also disclosed are polyester and nylon fibers having these compounds incorporated therein, and a process for producing such soil-repellent fibers.