C - Chemistry – Metallurgy – 08 – B
Patent
C - Chemistry, Metallurgy
08
B
400/1302, 260/21
C08B 11/18 (2006.01) C08B 11/193 (2006.01) C09D 7/00 (2006.01) C09D 101/26 (2006.01)
Patent
CA 2011848
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 -CH2CH2O-; -CH2CH-O-; and -CH2CH2CH2O-; and (b) one 2-hydroxy propylene ¦ CH3 group, together with hydrophobic units which are alkylphenoxy groups of the formula Image I where R and R4 are hydrocarbon groups having from about four to about thirty carbon atoms, preferably from about nine to about eighteen carbon atoms; n1 is 0 or 1; connected linearly in a group of the general formula: n is zero to six Image A-O is alkyleneoxy as above 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 R-O-[A-O]n-CH2CHCH2 IV n is one to six ¦ A - O is alkyleneoxy OH as above as well as water-base paints with excellent properties containing such cellulose ethers. ii
Bostrom Peter
Ingvarsson Ingemar
Sundberg Kenneth
Berol Nobel Ab
Macrae & Co.
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