ALUMINIUM PHOSPHATE CEMENT COMPOSITIONS AND LAMP ASSEMBLIES CONTAINING SAME

This invention relates to aluminum phosphate refractory cement compositions which comprise a mixture of aluminum phosphate containing excess phosphoric acid, relatively small particle size alumina and a mixture of relatively medium and coarse particle size inert filler materials. This cement (14) is...

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Bibliographic Details
Main Authors MARY SCHUSTER JAFFE, CATHERINE MERS, CLARK DAVID NELSON, VITO JOSEPH ARSENA
Format Patent
LanguageEnglish
Published 30.01.1992
Edition5
Subjects
ARTIFICIAL STONE
BASIC ELECTRIC ELEMENTS
BLASTING
CEMENTS
CERAMICS
CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUSENAMELS
CHEMISTRY
COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS
CONCRETE
ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
ELECTRIC INCANDESCENT LAMPS
ELECTRICITY
FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMSTHEREOF
GLASS
HEATING
JOINING GLASS TO GLASS OR OTHER MATERIALS
LIGHTING
LIME, MAGNESIA
MECHANICAL ENGINEERING
METALLURGY
MINERAL OR SLAG WOOL
REFRACTORIES
SLAG
STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHERARTICLES, NOT OTHERWISE PROVIDED FOR
SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS,MINERALS OR SLAGS
SURFACE TREATMENT OF GLASS
TREATMENT OF NATURAL STONE
WEAPONS
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Summary:This invention relates to aluminum phosphate refractory cement compositions which comprise a mixture of aluminum phosphate containing excess phosphoric acid, relatively small particle size alumina and a mixture of relatively medium and coarse particle size inert filler materials. This cement (14) is useful for cementing tungsten-halogen lamps (10) into glass reflectors (12). The aluminum phosphate is formed with an excess of phosphoric acid which reacts with the alumina when the cement is baked at elevated temperatures.
Bibliography:Application Number: AU19880022488