Vitrofil Corporation

Glass Container Manufacturers Institute, Inc.

Thomas Clifford Shutt

L Wayne Snider

Howard Campbell

Fire retardant generally non-caking compositions of intimately intermixed ammonium phosphate, e.g. mono- and/or diammonium phosphate; sodium tetraborate containing molecularly bound water, e.g. the decahydrate, borax; and fractured finely ground solid powder particles of soda-containing silicate glass which have a high and irregular surface area and an active dry moisture absorbent surface condition for maintaining the particles of ammonium phosphate and sodium tetraborate in moisture protected disposition and for inhibiting the tendency of such particles to adhere to one another; the three components having an average particle size below about 4 mesh, the ammonium phosphate and sodium tetraborate being present in a combined predominant amount effective for imparting an active fire retarding property to cellulosic materials, and the resulting admixture being substantially dry and free flowing with the individual particles thereof in substantially uniform and non-caking distribution;

Fire retardant compositions

Preparation of improved smoke and flame retardant high structural strength resinous compositions by incorporating fractured finely ground solid powder particles of soda-containing silicate glass, especially soda-lime-silicate glass, having a high and irregular surface area and an average particle size below about 40 mesh, and a finely divided inorganic solid oxidic boron material capable of forming inert glass upon being heated, e.g. sodium tetraborate (anhydrous, pentahydrate and decahydrate), boric acid, and boron oxide, alone or combined in an average particle size below about 40 mesh, into the corresponding resin or synthetic plastic, e.g. polyester, in intimate and substantially uniform distribution therein to form an admixture therewith prior to curing, said boron material being incorporated in an effective amount, e.g. between about 1-50% based on the combined weight of the resin and boron material present, for imparting an active flame retarding property to the cured resin, and said boron material and particles of glass correspondingly being incorporated in a combined effective amount for imparting an active smoke retarding property to the cured resin, e.g. with said particles of glass being conjointly incorporated in an amount of between 1-60% based on the combined weight of the resin and particles of glass present, preferably yet optionally for combining in turn with fiber-glass, e.g. in the weight ratio range of about 70-90% resin-boron material-glass-mixture to about 30-10% fiber-glass, to produce upon curing, preferably fiber-glass reinforced, resinous or plastic products of high structural strength possessing improved conjoint smoke and flame retardancy.

Preparation of smoke and flame retardant resinous compositions

Admixture of unsaturated polyester and finely ground powder particles of soda-containing silicate glass, preferably soda-lime-silicate glass, e.g. below about 40 mesh and in an amount of between about 1 to 60% based on the weight of the polyester-glass particle admixture, providing improved properties in the ultimately cured resin at lower material costs and having special application as a composition for use in fabricating fibrous glass (i.e. fiber-glass) reinforced plastics composite products.

Preparation of unsaturated polyester compositions

Structural clay products such as bricks, tile and blocks are made using waste soda lime glass, other inorganic materials and ball clay. The products are produced at the relatively low firing temperatures between 1300.degree. and 1900.degree.F and are of minimum porosity.

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Arvada, CO, United States of America

Thomas Clifford Shutt