Mixed hydrophobe polymers
AssigneeAqualon Company
InventorArjun C. Sau
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Abstract
Water-soluble, cellulose ether polymers having (a) at least one substituent selected from the group consisting of hydroxyethyl, hydroxypropyl, and methyl radicals and (b) two or more hydrophobic radicals having 6 to 20 carbon atoms selected from the group consisting of long chain alkyl, alphahydroxyalkyl, urethane, acyl and 3-alkoxy-2-hydroxypropyl, wherein one of the hydrophobic radicals has a carbon chain length that is at least two carbon atoms longer than that of the other of the hydrophobic radials and the hydrophobic radicals are contained in a total amount of between about 0.2 weight percent and an amount such that the cellulose ethers are less than 1% by weight soluble in water, and aqueous protective coatings, such as latex paints, containing the same are disclosed.
Claims23
A water-soluble, cellulose ether polymer having (a) at least one substituent selected from the group consisting of hydroxyethyl, hydroxypropyl, and methyl radicals and (b) two or more hydrophobic radicals having 6 to 20 carbon atoms selected from the group consisting of long chain alkyl, alphahydroxyalkyl, urethane, acyl 3-alkoxy-2-hydroxypropyl, wherein one of the hydrophobic radicals has a carbon chain length that is at least two carbon atoms longer than that of another of the hydrophobic radicals and the hydrophobic radicals are contained in a total amount of between about 0.2 weight percent and an amount such that the cellulose ethers are less than 1% by weight soluble in water.
Dependencies are inferred from the claim text.