Abstract: Hydraulic cement set-accelerating admixture compositions; cement compositions containing such admixtures; and methods for preparing said cement compositions. The admixture compositions comprise one or more nitroalcohols present in an amount effective to increase the set acceleration of a hydraulic cement composition. The invention further relates to a method of making a hydraulic cement composition comprising adding to a cement composition comprising a hydraulic cement binder, a nitroalcohol component in an amount effective to increase the set-acceleration of the binder, and to a cement composition comprising a hydraulic cement binder and a nitroalcohol set-accelerating agent.

Abstract: A device suitable to accurately determine water depth. The device comprises a rod having a weighted first end, a fixed float and a movable float.

Abstract: A process for applying and providing an enhanced polyester-based polymer concrete overlay on a porous substrate structure is provided. The process requires first applying a monomeric high-molecular weight acrylate- or methacrylate-based pretreatment composition to the substrate and then forming the polyester-based polymer concrete overlay over the treated substrate.

Abstract: A method of posttreating a concrete structure to provide corrosion inhibiting properties by heating the structure to remove entrapped water, cooling the structure under a maximum temperature gradient of +2.degree. C./in. thickness, applying an aqueous solution of corrosion inhibitor and then an aqueous wash.

Abstract: Adhesive, waterproof membranes capable of adhering to freshly poured concrete compositions upon curing. The waterproof membranes of this invention comprise a bituminous sheet having at least one major surface coated with a non-tacky polymeric coating composition which contains a water-insoluble polymer, and optionally a filler capable of absorbing or reflecting infrared or ultra violet radiation and/or a plasticizer. Suitable water-insoluble polymers for use in this invention include alpha-beta-ethylenically unsaturated carboxylic acid polymers or polyvinyl alcohol polymers.

Abstract: The present invention is directed to a foamed product having a substantially closed cellular configuration. The foamed product is formed from a blend of asphalt with a polyvalent metal salt of anionic group containing polymers. The resultant foam product exhibits low bulk densities and pore volumes of about 85 percent or greater.

Abstract: The present invention is directed to a foamed product having a substantially closed cellular configuration. The foamed product is formed from a blend of asphalt with a polyvalent metal salt of anionic group containing polymers. The resultant foam product exhibits low bulk densities and pore volumes of about 85 percent or greater.

Abstract: The present invention is directed to a foamed product having a substantially closed cellular configuration. The foamed product is formed from a blend of asphalt with a polyvalent metal salt of anionic group containing polymers. The resultant foam product exhibits low bulk densities and pore volumes of about 85 percent or greater.

Abstract: A preformed sheet-like barrier useful for insulating and waterproofing a structure formed from a closed cell porous structure having an adhesive bituminous sheet integrally adhered to one major surface of the structure and having a removable coating substantially coextensive and congruent with the free surface of the bituminous sheet.

Abstract: A preformed sheet-like barrier useful for drainage enhancing away from and waterproofing of a structure, said barrier is formed from an open cell porous structure having an adhesive bituminous sheet integrally adhered to one major surface of the structure and having a removable coating substantially coextensive and congruent with the free surface of the bituminous sheet.

Abstract: A process for forming an insulation/waterproofing or a water drainage enhancer/waterproofing barrier on a construction surface by applying directly to said surface a preformed unitary structure comprising a non-porous adhesive sheet like membrane having directly adhered to one surface thereof a cellular board.

Abstract: A preformed sheet-like barrier useful for insulating and waterproofing a structure formed from a closed cell porous structure having an adhesive bituminous sheet integrally adhered to one major surface of the structure and having a removable coating substantially coextensive and congruent with the free surface of the bituminous sheet.

Abstract: A preformed sheet-like barrier useful for drainage enhancing away from and waterproofing of a structure, said barrier is formed from an open cell porous structure having an adhesive bituminous sheet integrally adhered to one major surface of the structure and having a removable coating substantially coextensive and congruent with the free surface of the bituminous sheet.

Abstract: This invention relates to a novel process of preparing and applying an orthopedic splint or cast to a broken limb whereby a porous substrate which contains an acid gas coagulable polymer is applied to said limb followed by rigidification of said substrate and polymer through exposure to a coagulating gas.

Abstract: This invention relates to control of particle size of solid, discrete, hydrophilic, crosslinked polyurethane particles formed from a composition which comprises(a) a water reactant;(b) a prepolymer comprising at least one isocyanate-capped polyol having a reaction functionality of at least two, the total of said polyol present having an ethylene oxide content of at least 40 weight percent before capping;(c) a water-soluble solvent for (b) and(d) when the reaction functionality of (b) is two, a crosslinking agent containing at least three functional groups, the volume ratio of (a):(b) being at least 2:1.

Abstract: A heat pipe is used to transfer heat from an outside solar panel into a building where the heat can be stored in a heat absorber. Various heat pipe structures are disclosed where the pipe passes through the wall of the building and where it has an end portion thermally contacting the solar panel. Heat transfer can be stopped by rotating the heat pipe, by the use of plungers and trap chambers in the pipe or by specially designed heat pipes that can be easily removed. The heat pipe can also be used to remove heat from the inside to the outside. The inside end portion of the heat pipe is in thermal contact with a heat absorber inside the building which contains a phase change material. Modular wall units can also be made having the solar panel and heat absorber integral on each side of the wall with the heat pipe in between.

Abstract: This invention relates to the preparation of a flexible, open cell polyurethane foam which can be rigidized by incorporating an epoxy resin into the mixture prior to foaming and, after forming a flexible foam, adding an epoxy curing agent thereto to cause the epoxy resin to cure thereby rigidizing the previously flexible foam. The flexible foam can be reshaped prior to rigidizing if desired.

Abstract: The invention disclosed relates to a new fabric softener foam having improved utility for softening textile fabrics in either a standard or automatic clothes dryer as well as in an automatic washer.

Abstract: This invention is directed to a process for forming a wettable battery separator comprising a non-woven mat of polyolefin fiber by forming a non-woven mat of polyolefin fiber having a thickness in the range 10 to 40 mils and pore sizes less than 40 microns, contacting the mat with an aqueous solution of a water soluble peroxy compound, e.g. hydrogen peroxide or potassium persulfate at a temperature below 70.degree. C., rinsing the mat in water and thereafter immersing the thus treated mat in an aqueous solution of a hydrophilic vinyl monomer such as acrylic, methacrylic, vinyl sulfonic acid, said solution containing a redox catalyst, e.g. an ion of a transition metal, e.g. ferrous, cerous, cobaltous, or an organic amine, thereby causing a graft polymerization of said hydrophilic vinyl monomer on said polyolefin mat to give a wettable polyolefin battery separator.

Abstract: This invention relates to a strippable coating process and a coating composition therefor comprising (1) a latex, (2) a coagulant for said latex and (3) a debonding agent consisting essentially of a substantially non-volatile additive which is adhesive to at least one of either the coated substrate or coagulated coating, more soluble in water than in the coagulated latex polymer component and having a solubility parameter at least 2(calories/cc).sup.1/2 higher than the coagulated latex polymer component.The protective coating is formed by impinging a stream of a latex and a stream of a coagulant, the two streams being oppositely charged, onto a substrate. After drying an external debonding agent is applied between the coating and the substrate and thereafter the coating is stripped from the substrate.