An elastomeric polysulfide composite in which rubber particles, particularly crumb rubber, are distributed substantially uniformly through an elastomeric polysulfide layer, roofing made from such composites, and the method of forming roofing in which the composite is associated with a rubber particle mat.

A melamine-coated ammonium polyphosphate exhibiting properties of having no hygroscopicity, being difficultly soluble in water and difficultly susceptive of hydrolysis is provided and further a process for producing a melamine-coated ammonium polyphosphate having the above properties and also being powdery even when it is not ground is provided, the above powdery, melamine-coated ammonium polyphosphate being characterized in that melamine is added and/or adhered onto the particle surface of a po...

A lightweight, flexible, layered insulation composed of glass or ceramic fabric covered with a ceramic coating and overlying an insulating felt made from needled polybenzazole (PBZ) material which is preferably polybenzoxazole (PBO), and which optionally contains a poly(1,3-phenylene isophtalamide) felt material, commercially known as Nomex.TM., either combined with the PBZ felt or layered beneath the PBZ felt as a separate layer. The insulation is readily applied to a reusable launch vehicle vi...

An encapsulated flame retardant is made by a process including applying an organic silicon composition to a powder flame retardant. The organic silicon composition is an organofunctional-silane or a mixture of organofunctional silanes, an oligomeric organosiloxane or a mixture of oligomeric organosiloxanes, or a solvent-containing preparation based on monomeric organosilanes and/or on oligomeric organosiloxanes, or a preparation based on water-soluble organopolysiloxanes, or mixtures of any or a...

This invention relates to the construction and manufacture of lightweight fibrous acoustical wall and ceiling panels. The acoustical panel is comprised of a lightweight fiberglass core to which a white or light colored glass mat is applied. The glass mat provides a relatively stiff surface to the fiberglass and at the same time bridges irregularities inherent in lightweight acoustical fiberglass core materials. The white or light colored glass mat covers the natural yellow or light brown color o...

A method for the production of a patterned glass fabric, especially for wallpaper or similar materials having a fabric woven with glass fiber yams, in which glass fiber yams are processed on a pattern-controlled Jacquard loom, a glass fiber yam with a titer between 130 tex and 150 tex, and preferably between 139 and 142 tex, being used for the warp, and a glass fiber yarn with a titer between 190 tex and 400 tex, and preferably of 215 tex, being used for the filling, the fluctuations in titer be...

There is disclosed a heat resistant cloth for fire fighting. At least an inner surface of a fluororesin film is subjected to plasma discharge treatment to form a treated surface. A vacuum-deposition film made of a bright metal such as aluminum is formed on the treated surface of the fluororesin film without use of a primer. The vacuum-deposition film on the treated surface is bonded to an outer surface of a substrate fabric through use of a silicone rubber adhesive in order to form a heat-reflec...

A method of treating a shell sand by heating it to 300.degree. C. maximum for a time sufficient to remove substantially all of the water and organic content while maintaining substantially all of the inherent porosity of the shell sand. Generally, the time required varies between 10 minutes maximum at 300.degree. C. to about 1 hour at 95.degree. C. The resulting material is useful in cementitious compositions, particularly mortars, these being characterised by a high flexibility and an exception...

A flooring to be used for vehicles, vessels, etc. The flooring comprises a lowermost rubber layer which makes direct contact with a floor board of a vehicle, a surface layer which constitutes a surface layer portion of the flooring and an intermediate layer interposed between the lowermost layer and the surface layer. The lowermost rubber layer contains a hydrate which discharges water of crystallization at the temperature of 150.degree.-300.degree. C. and accordingly prevents rise of surface te...

An insulating structure is provided which includes a succession of superposed layers of fibers capable of withstanding high temperatures. A hot face of the structure comprises fibers capable of withstanding temperatures higher than the fibers of the cold face. The layers have an apparent density which varies from the hot face to the cold face. The structure contains fibers which have temperature-resistant properties which progressively decrease from the hot face to the cold face. The structure a...