| 摘要 |
<p>The present invention relates to polymeric ultraviolet light-absorbing compounds and processes for their production and relates particularly but not exclusively to polymeric ultraviolet light-absorbing compounds being copolymers of acrylic acid with the ultraviolet light-absorbing monomers of the invention and with other ultraviolet light-absorbing compounds. The ultraviolet light-absorbing compounds are of general formula (I), in which: R represents -(alk)nO- or -(CH2CH2O)-n in which alk is a divalent straight or branched alkyl, aryl or alkaryl radical having 1 to 20 carbon atoms and n is from 1 to 1000, R' represents -OH, NH2, -NHR'' or -NR''2 in which R'' represents a straight or branched alkyl, aryl or alkylaryl radical having from 1 to 20 carbon atoms. The polymers have a spreadability and lubricity which is conducive to their rubbing into the skin either alone or when formulated in sunscreen lotions, creams or suspensions.</p> |
