Water soluble nonionic cellulose ethers and their use in paints

Details Water soluble nonionic cellulose ethers and their use in paints Water soluble nonionic cellulose ethers and their use in paints

1990-03-12

1992-08-18

Nutter, Nathan M.

Organic compounds -- part of the class 532-570 series

Organic compounds

Carbohydrates or derivatives

524 42, 524 43, 524 44, C08B 11193, C08J 303

Patent

active

051400995

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

REFERENCES:
patent: 4485211 (1984-11-01), Okamoto
patent: 4845207 (1989-07-01), t'Sas
patent: 4902733 (1990-02-01), Angerer

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