Cellulose ether slurries
AssigneeUnion Carbide Chemicals & Plastics Technology Corporation
InventorsLuiz Roberto Eiger, Emmett Malone Partain, III, Arthur Herbert Marsh
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Abstract
Slurries of water soluble cellulose ethers are disclosed. The slurries comprise particulate cellulose ethers in an oxygenated, organic carrier which is substantially a non-solvent for the cellulose ethers, a thickening agent and optionally surfactants and other ingredients. The ingredients contained in the slurries are compatible with the ingredients used in the manufacture of latex compositions, e.g., latex paints.
Claims12
A slurry composition comprising:
- (a) from about 1 to 75 weight percent, based on the total weight of the slurry, of a particulate, water-soluble, cellulose ether having a particle size of from about 0.01 to 1000 microns and a molecular weight of from about 10,000 to 2×106 grams per gram mole;
- (b) from about 25 to 99 weight percent, based on the total weight of the slurry, of an oxygenated, organic carrier which is at least substantially a non-solvent for the cellulose ether and which has from about two to about twelve carbon atoms per molecule;
- and
- (c) from about 0.1 to 10 weight percent, based on the total weight of the slurry, of a particulate thickening agent which is insoluble in the carrier;
- wherein the slurry composition
- (i) is substantially free of salt;
- (ii) is substantially free of water;
- and
- (iii) is stable for at least one week.
A method of making a slurry composition comprising combining:
- (a) from about 1 to 75 weight percent, based on the total weight of the slurry, of a particulate, water-soluble, cellulose ether having a particle size of from about 0.01 to 1000 microns and a molecular weight of from about 10,000 to 2×106 grams per gram mole;
- (b) from about 25 to 99 weight percent, based on the total weight of the slurry, of an oxygenated, organic carrier which is at least substantially a non-solvent for the;
- cellulose ether and which has from about two to about twelve carbon atoms per molecule;
- and
- (c) from about 0.1 to 10 weight percent, based on the total weight of the slurry, of a particulate thickening agent which is insoluble in the carrier;
- wherein the slurry composition,
- (i) is substantially free of salt;
- (ii) is substantially free of water;
- and
- (iii) is stable for at least one week.
A slurry composition comprising:
- (a) from about 1 to 75 weight percent, based on the total weight of the slurry, of a particulate, water-soluble, polysaccharide having a particle size of from about 0.01 to 1000 microns and a molecular weight of from about 10,000 to 2×106 grams per gram mole;
- (b) from about 25 to 99 weight percent, based on the total weight of the slurry, of an oxygenated, organic carrier which is at least substantially a non-solvent for the polysaccharide and which has from about two to about twelve carbon atoms per molecule;
- and
- (c) from about 0.1 to 10 weight percent, based on the total weight of the slurry, of a particulate thickening agent which is insoluble in the carrier;
- wherein the slurry composition
- (i) is substantially free of salt;
- (ii) is substantially free of water;
- and
- (iii) is stable for at least one week.
Dependencies are inferred from the claim text.