W. R. Grace Co.

W. R. Grace Co.-conn.

Other

Joseph A Cogliano

James M Gaidis

Ellis M Gartner

Clifton L Kehr

Leslie A Jardine

Nelson S Marans

Arnold M Rosenberg

Ahmad Arfaei

Walter R Wszolek

Paul C Scheiner

Heyman C Duecker

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.

Hydraulic cement set accelerators based on nitroalcohols

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.

Water depth apparatus

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.

Concrete primer for polyester coatings

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.

Treating concrete structures to inhibit corrosion by heating the

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.

Waterproofing membrane

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.

Asphalt foam

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.

Construction barrier board

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.

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.

Process of applying a unitary construction barrier

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.

Lightweight porous casts

This invention relates to control of particle size of solid, discrete, hydrophilic, crosslinked polyurethane particles formed from a composition which comprises

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Pasadena, MD, United States of America

Joseph A Cogliano