Importance

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Abstract

Water soluble nonionic cellulose ethers are provided, containing mixed alkylphenoxyalkyleneoxy-2-hydroxy propylene groups, having hydrophilic units composed of (a) alkyleneoxy groups of two or three carbon atoms, in a number from zero to about six, selected from --CH.sub.2 CH.sub.2 O--; ##STR1## and --CH.sub.2 CH.sub.2 CH.sub.2 O--; and (b) one 2-hydroxy propylene group, together with hydrophobic units which are alkylphenoxy groups of the formula ##STR2## where R and R.sub.4 are hydrocarbon groups having from about four to about thirty carbon atoms, preferably from about nine to about eighteen carbon atoms; n.sub.1 is 0 or 1; connected linearly in a group of the general formula: ##STR3## Also provided is a class of cellulose ethers having similar hydrophilic units and hydrophobic units which are alkyloxyalkyleneoxy groups of the formula R--O-- III where R is an alkyl group having from about four to about thirty carbon atoms, preferably from about nine to about eighteen carbon atoms, connected linearly in a group of the general formula ##STR4## as well as water-base paints with excellent properties containing such cellulose ethers.

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First Claim