Church Dwight & Co., Inc.

Lawrence Kirschner

Michael S Lajoie

William E Spears, Jr

M Stephen Lajoie

Andrew D Kurtz

John R Berschied

Herman L Marder

Wendy R Greczyn

Anthony E Winston

Francis R Cala

Benny S Yam

Dragomir Mark Bracilovic

William J Zuccarello

Thyge Borup Hjorth

Stephen P Lengyel

Jack H Van Sciver

John J Steinke

Poul Bertelsen

Nils Gjerlov Hansen

Michael Stephen Lajoie

Multiparticulate controlled release preparations incorporating an alkalinizing potassium salt, preferably potassium bicarbonate, as an active ingredient, which are suitable for forming pharmaceutical dosage forms for oral administration. Such dosage forms are useful for potassium supplementation and for the treatment of degenerative bone or cardiovascular diseases, e.g., osteoporosis and hypertension.

Alkalinizing potassium salt controlled release preparations

A process for removing coatings from hard surfaces includes blasting the surfaces with a free-flowing particulate blast media entrained in a pressurized fluid, the blast media containing a major amount of relatively soft granular abrasive particles which have a Mohs hardness of less than 4.0 and a minor amount of free-flowing, separate relatively hard granular abrasive particles which have a hardness of greater than 5.0 on the Mohs scale, the granular abrasives having a particle size of from about 10 to about 2000 microns and being devoid of crystalline silica material.

Process for removing coatings from hard surfaces

A blast media for removing coatings from hard surfaces such as steel includes a major amount of a granular relatively soft abrasive having a Mohs hardness of less than 4 and a minor portion of a granular hard abrasive having a Mohs hardness of greater than 5.

Abrasive coating remover

A large size, small surface area, granular crystalline potassium bicarbonate product suitable for application as an active ingredient in pharmaceutical oral unit dosage forms useful for the treatment of various degenerative bone and cardiovascular diseases, particularly osteoporosis or hypertension, comprising potassium bicarbonate crystals having a mean particle size of at least 350 microns and a specific B.E.T. surface area less than 0.02 m.sup.2 /gram. A process for preparing such product is further provided, in which a solution of potassium bicarbonate is fed to a slurry of potassium bicarbonate crystals in a crystallizer and the temperatures and concentrations of the potassium bicarbonate in the feed solution and the crystallizer slurry are so regulated, and the residence time and degree of agitation in the crystallizer are so controlled, that the desired large size, small surface area potassium bicarbonate crystals are produced.

Large potassium bicarbonate crystals and process for the preparation

This invention provides an improved antiperspirant-deodorant cosmetic stick product. An essential aspect of the cosmetic stick product is a content of particulate antiperspirant and alkali metal bicarbonate ingredients, at least one of which has ingredient particle surfaces coated with a hydrophilic organic polymer.

Antiperspirant-deodorant cosmetic stick products

A blast media for removing coatings from steel comprises a major amount of a granular relatively soft abrasive such as trona, i.e., natural sodium sesquicarbonate, and a minor portion of a granular hard abrasive such as aluminum oxide.

Abrasive coating remover and process for using same

This invention provides an improved process for producing an antiperspirant-deodorant cosmetic stick product. An essential aspect of the process improvement is a phased order of ingredient addition and blending of formulation ingredients under controlled temperature conditions. Another essential aspect is the incorporation of particulate antiperspirant and alkali metal bicarbonate ingredients, at least one of which has ingredient particle surfaces coated with a hydrophilic organic polymer.

An alkaline blast cleaning system for aluminum surfaces which avoids discoloring or tarnishing of the aluminum surfaces, is comprised of an alkali metal bicarbonate having a particle size of from about 50 to about 1000 and an aqueous solution of sodium silicate, the sodium silicate having an SiO.sub.2 :Na.sub.2 O ratio of from about 2.44 to about 3.22:1 and being present in the aqueous solution in a corrosion inhibiting concentration of from about 100 to about 1000 ppm., the pH of the solution ranging from about 8.1 to about 8.3.

Corrosion-inhibiting cleaning systems for aluminum surfaces,

A conventional blasting apparatus is modified to provide a separate source of line air to a blast pot through a pressure regulator to provide a greater pressure in the blast pot than is provided to the conveying hose. This differential pressure is maintained by an orifice having a predetermined area situated between the blast pot and the conveying hose. This orifice provides an exit for the blast medium and a relatively small quantity of air from the blast pot to the conveying hose, and ultimately to the nozzle and finally the workpiece. The differential air pressure, typically operating between 1.0 and 15.0 psi with an orifice having an appropriate area, yields acceptable media flow rates in a controlled manner.

Blasting apparatus and method

Blasting media for removing coatings from sensitive metal and composite surfaces, and a process useful therewith, wherein the blasting media comprise mixtures of water-soluble crystalline sodium bicarbonate particles having average particle sizes of from 100-500 microns.

Process for removing coatings from sensitive substrates, and blasting

Blasting media for removing coatings from sensitive metal and composite surfaces, and a process useful therewith, wherein the blasting media comprise mixtures of water-soluble crystalline sodium sulfate particles having average particle sizes of from 100 to 250 microns, in admixture with flow/anticaking agents.

Process for removing coatings from sensitive substrates, and sodium

Conventional industrial pressure blasting apparatus is modified to allow a controlled pressure on the blast pot that is greater than the pressure on the line where less aggressive abrasive media and air are mixed for conveying the mixture to the nozzle and then to the workpiece. A media control device, with a fixed but readily variable area, is placed between the blast pot and the media/air mixing line to meter the media flow and maintain a positive pressure differential between the blast pot and the line. Adjusting the pressure differential allows control of the weight ratio of the media-to-air flow to between about 0.05 to 0.25.

Blasting apparatus

Conventional industrial pressure blasting apparatus is modified to allow a controlled pressure on the blast pot that is greater than the pressure on the line where the media and air are mixed for conveying the mixture to the nozzle and then to the workpiece. A media control device, with a fixed but readily variable area, is placed between the blast pot and the media/air mixing line to meter the media flow and maintain the pressure differential between the blast pot and the line. This allows control of the media flow when low flow rates, below about 10 pounds per minute, are required.

Dry blended carbonate or phosphate-based laundry detergents are prepared by adding to unhydrated or partially hydrated builder salts, a pH buffering compound and a detergent active compound, together with other formulating agents, coarse, hydrous granular water soluble silicate particles, the silicate particles passing a 10 mesh screen and about 95% of the particles are retained on a 100 mesh screen, according to the disclosed method. Dry blended laundry detergents so formulated are substantially completely free of insoluble product lumps when used in cold wash water in the temperature range of 35.degree.-75.degree. F.

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Flanders, NJ, United States of America

Lawrence Kirschner