Abstract: An aqueous polymer dispersion is prepared by polymerizing at least two different olefinically unsaturated monomers in an aqueous medium at a temperature of 30.degree. to 100.degree. C. and in the presence of a polymerization initiator which forms free radicals, an emulsifier, a protective colloid and, if appropriate, a chain regulator. If carboxymethylcellulose having a specific degree of substitution is used as the protective colloid, a dispersion which is particularly suitable as a binder for a gloss paint having a gel structure is obtained.

Abstract: A composition and method for stimulating a subterranean formation. The composition contains an anionic polymer which is readily dispersible in water, having a molecular weight sufficient to thicken water, and a cationic or amphoteric polymer or mixtures thereof.

Abstract: A method of rendering a water soluble anionic polymer more dispersible in water. The method is carried out by mixing in a polar liquid the water soluble anionic polymers and cationic or amphoteric polymers to form a mixture. When the cationic or amphoteric polymer is added to the anionic polymer in an amount of from about 25 to about 75 percent by weight of the anionic polymer, the salt is added to the mixture in order to hydrate the anionic polymers.

Abstract: An adhesive composition comprising a mixture of water based polymer in latex form and a material generally referred to as a thickening agent is disclosed for removably adhering a product to a substrate, for example a carpet with an attached backing to a flooring substrate. The adhesive may be applied as a layer to the carpet backing, dried and subsequently activated with water to adhere the carpet to the floor. After drying, the adhesive layer may be reactivated with water to permit the carpet to be removed from the floor. The adhesive layer when dried on the surface of a latex foam backed carpet provides a non-tacky surface which additionally increases the abrasion resistance of the latex foam backing thereby reducing damage to the backing during normal storage and handling.

Abstract: Differential release coating compositions for use on liners of the type employed in the manufacture of pressure sensitive adhesive backed label transfer tape in roll form. The compositions in their preferred form comprise a binder, an aqueous solution of an organopolysiloxane, a catalyst, and an acrylic acid-acrylonitrile terpolymer.

Abstract: A lightweight joint compound for use in finishing joints between gypsum wallboards, comprising a filler, a binder, a specially treated expanded perlite, a non-leveling agent, and a thickener.

Abstract: A silicone resin coating composition is provided which provides a tough, abrasion-resistant coating when applied to a solid substrate. The coating composition has a basic pH in the range of from 7.1-7.8 and is prepared by hydrolyzing an alkyltrialkoxysilane or aryltrialkoxysilane in an aqueous colloidal silica dispersion. A thickening agent and an ultraviolet light screening agent are added to the resultant hydrolysis product.

Abstract: A cellulose derivative-containing emulsion composition which is the product of emulsion polymerization of at least one ethylenically unsaturated monomer in the presence of a water-solubilized product of a cellulose derivative-modified vinyl copolymer having an acid value of from about 3 to about 150, said vinyl copolymer being obtained by copolymerizing a cellulose derivative with an ethylenically unsaturated monomeric component composed of an ethylenically unsaturated acid and another ethylenically unsaturated monomer.

Abstract: Aqueous coating compositions are disclosed employing as a thickener an HEHPC ether having a haze point of at least about 70.degree. C., a gel point below 100.degree. C., a total molar substitution of about 2.5 to about 4.0 and having a ratio of hydroxypropyl molar substitution to hydroxyethyl molar substitution of about 1:2 to 2:1. The HEHPC thickeners as described exhibit good resistance to bacterial degradation, good color development and a haze point sufficiently high to allow normal formulation of the coating composition.

Abstract: A hydrophilic surface can be provided on a hydrophobic polymer surface by contacting the hydrophobic surface with a solution of a hydroxyalkyl cellulose and a perfluorocarbon surfactant in water or a mixture of water and one or more aliphatic alcohols so as to form a layer of the solution on the hydrophobic surface and then heating the surface coated with the layer so as to remove the solvent, so as to form a bond between the cellulose and the hydrophobic surface. This results in the formation of a hydrophilic surface coating a layer on the hydrophobic surface. Hydrophilic surfaces as are created in this manner are primarily intended to be utilized on polysulfone surfaces in semipermeable membranes such as are utilized in micro- and ultra-filtration.

Abstract: A dry textile warp size composition for use in the sizing of yarns containing natural fibrous materials, synthetic fibrous materials, or blends of same including a polyester in particulate form, a film former, and optionally a lubricant and other minor additives. The polyester is preferably rendered into particulate form by grinding at reduced temperature, includes anionic hydrophilic groups and is at least substantially saturated. A process for producing the size composition is also disclosed and claimed.

Abstract: Waterborne silicone coating formulations are provided. The coatings utilize water based emulsions or organopolysiloxane resins where the emulsions are provided with an effective combination of cellulosic and anionic emulsifying agents. The coatings of the present invention offer durability and resistance to extreme temperatures.

Abstract: A denture fixative composition contains a dentally acceptable excipient and an effective fixative amount of a fixative mixture comprising hydroxypropyl cellulose and at least one partially neutralized alkyl vinyl ether-maleic acid or anhydride copolymer, optionally partly crosslinked, or a partially neutralized, optionally partly crosslinked polyacrylic acid or a precursor combination of the copolymer or polyacrylic acid, neutralizing agents, and optionally crosslinking agents, which is adapted to form the fixative in situ, or polyethylene oxide.

Abstract: A silicone resin coating composition which, when applied to a solid substrate, provides a thick abrasion resistant coating thereto, is disclosed herein. The coating composition has a basic pH in the range of from 7.1-7.8 and is prepared by hydrolyzing an alkyltrialkoxysilane or aryltrialkoxysilane in an aqueous colloidal silica dispersion. A thickening agent is added to the resultant hydrolysis product.