Abstract: The present invention provides a dry mix composition of a powder of an ultra high-viscosity cellulose ether having one or more polyether groups, the cellulose ether having a 1 wt. % aqueous solution viscosity (20 C, 2.55 s?1 shear rate as determined using a controlled rate rotational rheometer) ranging from 10,000 to 100,000 mPa·s, or, preferably, 11,000 to 16,000 mPa·s, a graded aggregate, and a hydraulic cement, or a wet granular mix of the cement, graded aggregate and an admixture therefor including the cellulose ether. When combined with water to form a wet granular hydraulic cement composition, the composition of the present invention behaves like asphalt compositions and has zero or near zero slump, a high lubricity and 13.6 wt. % or less of water, or, preferably, from 5 to 11 wt. % of water, based on the total weight of the dry mix composition. The cellulose ether enables lubricity without impairing compaction and without causing air entrainment.

Abstract: The present invention provides pourable aqueous dispersion compositions of (a) one or more cellulose ethers and (b) one or more superplasticizers stably suspended in an aqueous dispersion of (c) one or more stabilizers in the form of a colloidal dispersion, further containing (d) one or more monovalent salts, such as an alkali metal salt. The minimum total amount of the cellulose ether, as solids in the pourable aqueous dispersion is 8 wt. % or, preferably, 12 wt. % or, preferably, 14 wt. % and the solids weight ratio of total cellulose ether to salt is close to 1:1, ranging, for example, from 0.7:1 to 1.4:1. Further, the amounts of the (a) one or more cellulose ethers and the (b) one or more superplasticizers enable the provision of pourable aqueous dispersion compositions effective for use in cement applications by simple dilution with water.

Abstract: The present invention relates to a composition comprising an aqueous solution of a) a hydrophobically modified alkylene oxide polymer comprising a hydrophobic portion functionalized with a protonated secondary or tertiary amine or a quaternary ammonium salt and b) an acid and a salt thereof, which acid is phosphoric acid, nitrilotris(methylene)triphosphonic acid, hydrochloric acid, or sulfuric acid. The composition of the present invention is useful for the preparation of an associative thickener that can be stored for long periods, in the absence of ancillary biocides, without spoilage from biodeteriogenic attack.

Abstract: The present invention provides a dry mix composition of a low-viscosity cellulose ether (50 to 750 mPa·s at 1 wt. % solids, at 20 C, and a 514 s-1 shear rate, using a strain-controlled rotational rheometer (for example, ARES-G2™, TA Instruments), a graded aggregate, and a hydraulic cement, or a granular wet cement composition of the cement, graded aggregate and an admixture therefor including the cellulose ether. The wet granular hydraulic cement composition behaves like asphalt compositions and has zero or near zero slump, a high lubricity and from 5 wt. % to less than 13 wt. % of water, or, preferably from greater than 5 to 10.5 wt. %, based on the total weight of the granular wet cement composition. The low-viscosity cellulose ether enables lubricity without impairing compaction and without causing air entrainment.

Abstract: The present invention relates to a composition comprising an aqueous mixture of a rheology modifier and a surfactant of Formula I: where R, R1, x, and y are as defined herein. The composition of the present invention provides a rheology modifier that does not promote microbial growth and does not require a biocide.

Abstract: The present invention relates to an aqueous composition comprising a rheology modifier and 1-bromo-3-chloro-5,5-dimethylhydantoin. The composition is useful for controlling viscosity in a paint formulation and contains a biocide that is efficacious and safe.

Abstract: The present invention relates to a composition comprising an aqueous solution of a) a hydrophobically modified alkylene oxide polymer comprising a hydrophobic portion functionalized with a protonated secondary or tertiary amine or a quaternary ammonium salt and b) an acid and a salt thereof, which acid is phosphoric acid, nitrilotris(methylene)triphosphonic acid, hydrochloric acid, or sulfuric acid. The composition of the present invention is useful for the preparation of an associative thickener that can be stored for long periods, in the absence of ancillary biocides, without spoilage from biodeteriogenic attack.