Matches 251 - 300 out of 534 < 1 2 3 4 5 6 7 8 9 10 11 >
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4598106 Pressure-resistant buoyancy material  
A pressure-resistant buoyancy material, comprising pressure-resistant hollow elements, a syntactic foam, and an empty space intervening between the pressure-resistant hollow elements and the...
4595623 Fiber-reinforced syntactic foam composites and method of forming same  
Fiber-reinforced syntactic foam composites having a low specific gravity and a low coefficient of thermal expansion suitable for forming lightweight structures for spacecraft applications are...
4594368 Phenol-formaldehyde intumescent coating composition and coating prepared therefrom  
Intumescent coatings which form a thick, uniform, fine celled, low density foam upon exposure to a high intensity heat flux or flame are disclosed, the invention coatings comprise phenolic resin...
4590123 Low-resilience rubber compositions and foams  
A soft, low-resilience, cured rubber composition is prepared by mixing (a) 100 parts by weight of a polymeric material comprising a styrene-butadiene copolymer or styrene-butadiene copolymer...
4582859 Process for producing an expanded seed copolymer and product therefrom  
An improved process for the manufacture of crosslinked copolymer particles from seed particles by imbibing a monomer therein and polymerizing the same under controlled suspension conditions wherein...
4578406 Conductive polyurethane foam and process of contacting a polyurethane foam with a mixture of swelling agent and chemical additive  
Polyurethane foam is modified by a post-treatment process comprising the steps of contacting the polyurethane foam with a swelling agent for the polyurethane foam and interpenetrating the swollen...
4568603 Fiber-reinforced syntactic foam composites prepared from polyglycidyl aromatic amine and polycarboxylic acid anhydride  
Fiber-reinforced syntactic foam composites having a low specific gravity and a coefficient of thermal expansion of about 9.0×10 -6 in/in/°F. (16.2×10 -6 cm/cm/°C.) or less are prepared from a...
4548861 Foam rigidizing process and products produced therewith  
A composite, rigid, structural, foam panel (11) comprising: (i) a flexible, non-structural, open cell reticulated or semi-reticulated, foam sheet (10); and (ii), an essentially closed cell resinous...
4547526 Flame protection composition comprising aluminum trihydrate, organic binder, and a sulfur compound and a polyurethane foam provided with such flame-protection composition  
In order to improve the flame-protection effect without substantially impairing the mechanical properties of the articles covered with the flame protection agent, the flame protection agent is...
4539345 Moisture-curable polyurethane composition  
One-part moisture-curable polyurethane adhesive, coating, sealant, or casting compositions containing a blend of isocyanate-functional prepolymer, terpene-phenolic resin, and silane compound. The...
4528305 Epoxy resin modeling stock  
Cured epoxy resin compositions, having a glass transition temperature (Tg) over 300° F. (149° C.) coupled with coefficients of linear thermal expansion (CTE) closely approaching those of...
4522878 Material having high mechanical strength and density close to unity, the manufacture and uses thereof  
A material with high mechanical strength and a density close to 1 is obtained by: (a) dispersing on weight basis 10-15% of a melamine-formol resin, 10-50% of hollow microspheres, and optionally...
4492732 Materials suitable for thermosetting  
A material suitable for thermosetting includes a collection of hollow particles adhesively mixed with a thermosetting resin in such proportions that the mixture exists in a granular form and may be...
4488646 Tamper-indicating sheet  
A novel lottery ticket comprising a blush-type coating which coating is characterized by susceptibility to a change in appearance when exposed to either (a) any of a wide spectrum of organic...
4489174 Vesiculated beads  
Vesiculated beads having improved scattering efficiency and resistance to shrinkage are prepared by a process which comprises: (a) forming in the presence of a polyamine, as a water-in-oil...
4487729 Friction lining material  
A friction material for use as a brake lining in automobiles, trucks, buses or similar vehicles. The brake lining contains no more than traces of asbestos and utilizes the mineral vermiculite as...
4485192 Plastisol sealing gaskets puffed with hollow discrete spheres  
A container sealing composition made from a plastisol having a mass of hollow discrete microspheres incorporated therein. The composition is characterized by having increased shelf life, as...
4480053 Coating composition and method  
A coating composition. The composition includes particles of polystyrene foam in admixture with a latex resin binder. The admixture can be sprayed or otherwise coated on a roof or other surface and...
4455396 Flame protection composition comprising aluminum trihydrate organic binder, and a sulfur compound and a polyurethane foam provided with such flame-protection composition  
In order to improve the flame protection effect without substantially impairing the mechanical properties of the articles covered with the flame protection agent, the flame protection agent is...
4454249 Reinforced plastics with porous resin fragments  
Reinforced easily moldable plastics are provided wherein particles of stretched porous polymer are incorporated into a plastic molding resin material to improve its physical properties without...
4451585 Resin-impregnated fibre composite materials and a process for their manufacture  
The invention relates to a method for producing a fibre composite material, which comprises glass- and/or mineral fibres, expanded microspheres and a curable resin. In the method a melt of glass or...
4451584 Molding compound for molding body portions and process for producing this molding compound  
A molding compound for molding body portions preferably serves the purpose of producing a counterpart for the production of a model for making prostheses, particularly teeth prostheses or...
4450198 Microporous film with polymer in pores for regulating passage of fluid  
A system is disclosed for dispensing an useful agent. The system comprises (1) means for storing an agent, (2) an agent stored in the means, (3) means for releasing agent from the system, (4) means...
4447565 Method and composition for molding low density desiccant syntactic foam articles  
A method and a composition are provided for molding low density desiccant syntactic foam articles. A low density molded desiccant article may be made as a syntactic foam by blending a thermosetting...
4439381 Methods of preparing polyimides and artifacts composed thereof  
Methods of converting essentially unpolymerized precursors into polyimides in which the precursors are exposed to microwave radiation. Preheating, thermal post-curing, and other techniques may be...
4433068 Process for producing bonded macroballoon structures and resulting product  
A method of making light weight flame resistant structures from bonded polyimide macroballoons and products thereof. An aromatic tetracarboxylic acid dianhydride is reacted with an oxoimine to...
4433069 Method for preparing flame resistant polysiloxane foams and foams prepared thereby  
Cured polyorganosiloxane foams exhibiting a uniquely high resistance to burn-through and disintegration when exposed to flames contain at least 0.1% by weight each, based on the weight of said...
4430448 Elastic molded body comprising a cell structure and process for producing such a molded body  
An elastic molded body comprising a cell structure consists of an elastic synthetic plastics material produced by a polyaddition reaction between a liquid diisocyanate or polyisocyanate and a...
4425440 Flame retardant thermally insulating material  
The invention provides a flame retardant thermally insulating material which comprises cellular polymer particles and fly ash bound into a coherent mass by a dried synthetic polymer latex binder,...
4425449 Decorative syntactic foam products  
A mixture of vinyl plastisol, suspension grade resin and expanded perlite is prepared in a manner such that the particles of perlite are not significantly damaged. The mixture is placed on a...
4419459 Process of producing transparent foamed plastics materials  
The present invention relates to processes of producing transparent foamed plastics, particularly foamed acrylate and methacrylate materials, in the form of e.g. panels, molded articles, or as...
4412012 Curing polyepoxide resin binders in syntactic foam forming compositions  
Disclosure is made of a method of curing the polyepoxide resin binder component of polyepoxide based syntactic foams. Ketones are employed to reversably block primary amine groups on polyamine...
4410639 Curing polyepoxide resin binders in high density syntactic foam forming compositions  
Disclosure is made of a method of curing the polyepoxide resin binder component of polyepoxide based syntactic foams of high density. Ketones are employed to reversably block primary amine groups...
4394457 Porous composite material and process for preparing same  
A porous composite material includes a porous body formed of a hydrophobic polymer such as polyvinyl chloride and a layer of a hydrophilic polymer such as polyvinyl alcohol provided over at least a...
RE31310 Impact resistant vinyl ester resin and process for making same  
Vinyl ester resins with improved impact resistance and other benefits and advantages may be obtained by a process modification wherein up to 20 percent of the unsaturated monocarboxylic acid, which...
4391929 Useful solutions of the tetramethylol derivative of 4,4'iso-propylidenediphenol  
The tetramethylol derivative of 4,4'iso-propylidenediphenol is dissolved in a solution of water and ethylene or propylene carbonate to yield concentrated solutions of the derivative in a form which...
4387168 Adhesive composition comprising a fluorine containing elastomer and fibrated PTFE  
An adhesive composition comprising a low molecular weight fluorine-containing elastomer and fibrillated polytetrafluoroethylene, which is excellent in chemical resistance and weather resistance.
4386133 Coated beads with macromonomer-styrene polymerizate coating  
Coated beads which exhibit anti-lumping properties upon pre-expansion and which are useful in the formation of soft expanded articles are prepared by coating initial polystyrene beads, in...
4379857 Insulation composition  
An insulating composition comprising in combination a liquid binder, a heat expanded polystyrene material in bead or granular form and a reinforcing pigment, said liquid binder comprising a 95.5 to...
4379858 Foamed plastics  
A melt-molded foamed plastic composition comprised of a tetrafluoroethylene-perfluoroalkyl vinyl ether resin matrix in which is admixed stretched porous fragments of polytetrafluoroethylene.
4367296 Structural materials and components  
High density structural ("blocking") materials composed of a polyimide filled with glass microballoons. Structural components such as panels which have integral edgings and/or other parts made of...
4351913 Filling materials for electrical and light waveguide communications cables  
Disclosed are materials used to fill electrical and light waveguides transmitting communications cables to make them waterproof. The filling materials have superior waterproofing, dielectric and...
4340510 Concrete mixtures or mortar mixtures or concretes or mortars and process for their production  
A concrete or mortar mixture or concrete or mortar on the basis of hydraulic binders and plastic materials for the production of building elements or coatings insensitive to shock and impact...
4331726 Roofing composition and structure  
A pourable roofing composition composed of chopped discrete small chunks or pieces of closed cell plastics material, such as polystyrene, polyurethane, and the like; inexpensive granular or powder...
4330634 Foam composites  
The invention relates to the production of foam composites which are thermally insulating and light and therefore suitable for use as e.g. ceiling tiles, wall tiles and brick insulation. The aim of...
4328320 Thermoplastic constructional-and-insulating material  
The subject of the invention is a new thermoplastic constructional-and-insulating building material based upon fly-ashes being a waste material at combusting coal. It is composed of fly-ashes in...
4327196 Method for producing expanded and cured polyester resin  
Polyester resin is expanded and cured using mono-substituted sulfonyl hydrozide blowing agent, organic peroxide curative and certain metal promoters.
4324835 Cellular intumescent materials  
A cellular intumescent material comprising a substantially open-called substrate impregnated with a flexible intumescent polymer. The open-celled nature of the substrate is retained. The substrate...
4320076 Expandable sealing compositions  
A composition comprising a butyl rubber and from about 5 to 25 percent by volume of expandable resinous microspheres containing a volatile blowing agent inside said resinous microspheres.
4320207 Polyester film containing fine powder of crosslinked polymer  
There is disclosed a polyester film containing from 0.001% to 4% by weight fine particles of a crosslinked polymer having an average diameter of 0.1 to 5μ, said fine particles being derived by...
Matches 251 - 300 out of 534 < 1 2 3 4 5 6 7 8 9 10 11 >