Abstract: Provided is a foamed dust composition and a method of using the foamed dust composition. The foamed dust composition contains an aqueous foam comprising a foaming agent, a foam stabilizer, water, and a rock dust. The foamed dust composition is sprayed onto coal mine surfaces to prevent coal dust explosion in the event of a fire.

Abstract: A foamed gypsum composition is provided. The composition may be used in making a crosslinked, foamed gypsum product. The composition is comprised of gypsum, foaming agents, epoxy resin, and a hardener. Optional ingredients would include one or more additives selected from the group consisting of inert fillers, aggregates, clay, sand, fibers, pigments, dyes, polymeric cement binder, plasticizers, superplasticizers, mineral wool, scrim, and freeze-prevent additives. Objects made from the composition include boards, interior walls, ceiling tiles, acoustical tiles, acoustical panels, roof decking, and flooring.

Abstract: Stable and water-resistant aqueous foam composition containing (1) a long chain cationic organic compound and (2) a long-chain anionic organic compound in a weight ratio of from 0.05:1 to 15:1. The stable foam composition of the invention may be mixed with various water-soluble or water-dispersible organic, polymeric, or inorganic substances and used in applications where lightweight, heat, sound or other insulative, barrier properties or homogeneous material distribution are needed. Such applications include cementitious or gypsum containing substances, adhesives, binders, paper treating materials, coatings, ceramics, landfills, geofills, and firefighting and fireproofing materials.

Abstract: A foamed composition comprising about 100 parts by weight of a hydraulic substance, about 25 to less than about 70 parts by weight water and about 0.01 to about 10 parts by weight of a polymeric foam stabilizer having a weight average molecular weight from about 1,000 to about 20,000 and comprising a homopolymer or copolymer of C.sub.1 -C.sub.12 alkyl carboxylic acids.

Abstract: An improved foamed hydraulic composition comprising at least one hydraulic substance, from about 20 to about 130 parts water, and from about 0.01-30 parts of a copolymeric foam stabilizer based on 100 parts hydraulic substance, where the copolymeric foam stabilizer is formed from one or more non-ionic, ethylenically-unsaturated monomers and one or more ionic or ionizable ethylenically-unsaturated monomers containing carboxylic acid.

Abstract: This invention relates to ambient-curing water-based binder, coating and adhesive compositions. These compositions are prepared by mixing (1) an acidic first component containing an aqueous dispersion of polymer latex, said polymer being alkali-curable and polymerized from a monomer mixture containing quaternary ammonium monomer, and an epoxy resin, together with (2) an alkaline second component containing an amine curing reagent. The resulting mixture of the first and second components is alkaline, cures quickly at room temperature, and yields films with high film strength, durability, and excellent heat and water resistance.

Abstract: This invention is directed to an improved process for preparing coating or adhesive compositions useful in bonding expanded vinyl which is vacuum laminated to molded fiberboard substrates, comprising (1) mixing an aqueous dispersion of an addition polymer containing active hydrogen, wherein the addition polymer contains essentially no polyurethane functional moieties, with water emulsifiable difunctional and/or multi-functional isocyanate, and (2) subsequently adding to the mixture an aqueous dispersion of a polyurethane polymer. Adhesive compositions prepared using the process exhibit both superior shear strength and superior hot peel strength at elevated temperatures.

Abstract: This invention relates to copper modified mancozeb (the reaction product of manganese ethylene-bis-dithiocarbamate and soluble zinc (II) ion) and processes for preparing same which produces a product which reduces the generation of ethylene thiourea on long term storage of the product, reduces the solubilized ethylene thiourea produced during the manufacture or storage of mancozeb, maintains or increases the fungicidal activity of mancozeb, and is more persistent in the field.