Abstract: A sprayable, high solids, low-volatiles filler composition is provided which may be used as a coating on a variety of substrates. The sprayable filler composition comprises a first filler/glazing component formed from a mixture of a resin, a filler, a mixture of thixotropic clays, activated fumed silica, hollow glass microspheres, and a ketone solvent. The sprayable filler composition has a second catalyst component. The glazing/filler component is blended with the catalyst component, preferably either internally or externally of the spray nozzle, and the resultant sprayable filler composition is sprayed onto a substrate. The resulting cured coating provides a sandable surface which is corrosion resistant.

Abstract: A sprayable, high solids, low-volatiles filler composition is provided which may be used as a coating on a variety of substrates. The sprayable filler composition comprises a first filler/glazing component formed from a mixture of a resin, a filler, a mixture of thixotropic clays, activated fumed silica, hollow glass microspheres, and a ketone solvent. The sprayable filler composition has a second catalyst component. The glazing/filler component is blended with the catalyst component, preferably either internally or externally of the spray nozzle, and the resultant sprayable filler composition is sprayed onto a substrate. The resulting cured coating provides a sandable surface which is corrosion resistant.

Abstract: Polyurethane foam of low thermal conductivity is prepared by employing carbon dioxide as a blowing agent, preferably in combination with a halogenated compound, typically a halocarbon or halohydrocarbon such as monofluorotrichloromethane or 1,1-dichloro-1-fluoroethane, and incorporating in the foam a carbon dioxide-reactive reagent. Sodium hydroxide and soda lime are illustrative carbon dioxide-reactive reagents. The carbon dioxide is preferably formed in situ by the reaction of water with the diisocyanate precursor of the polyurethane, and the carbon dioxide-reactivereagent is preferably introduced in admixture with a portion of the polyol precursor.

Abstract: The present invention is directed to a rigid, lightweight filled resin foam having voids dispersed in a continuous phase which is formed from a polyester hybrid resin having reinforcing particles dispersed therein. The hybrid resin forms a complex crosslinked network which may interact with other polymer networks in the continuous phase either by crosslinking or by forming an interpenetrating polymer network. The present invention is also directed to a process for preparing the above rigid, lightweight resin foam, and to a composition for use in this process. The foam of the present invention is useful in building materials and the like requiring high tensile and compressive strength and corrosion and thermal resistance.

Abstract: Typical embodiments of the syntactic foam panel construction which characterize the intention have (1), at least one face sheet of thermoplastic resin reinforced with microballoons and (2) a foam core prepared from thermoplastic syntactic foam flakes consisting of a mixture of hollow glass microballoons, short reinforcing fibers and thermoplastic resin.

Abstract: A composite material is disclosed. The material comprises a polymeric matrix and from about 20 volume percent to about 70 volume percent inorganic particles distributed throughout the matrix. Suitable inorganic particles include hollow inorganic microspheres and porous inorganic particles. The inorganic particles are coated with a surface coating. The composite material of the present invention exhibits a dielectric constant of less than about 2.5 and a thermal coefficient of expansion of less than about 70 ppm/.degree.C.

Abstract: A low dielectric material made of a liquid crystal polymer, polytetrafluoroethylene, and hollow glass spheres. This material is a relatively low cost, low dielectric blend having good physical strength and chemical and temperature resistance.

Abstract: A moldable hollow glass filled PBI composition. The composition may be prepared by making a well-mixed slurry of glass microspheres in a solution of PBI in a suitable solvent, and then spinning the slurry through a jet or die under pressure and into a water bath where the particles coagulate. The solvent dissolves in the water, allowing solvent-free PBI-glass composite particles to be isolated.

Abstract: An optical resolution agent which is prepared by polymerizing a polysaccharide derivative having vinyl groups introduced into the hydroxyl groups thereof through an ester or urethane linkage on the surface of a porous support or by copolymerizing such a polysaccharide derivative having vinyl groups introduced thereinto with a porous support having vinyl groups introduced thereinto and which enables an efficient optical resolution of a racemic modification by chromatography.

Abstract: The present invention is directed to a rigid, lightweight filled resin foam having voids dispersed in a continuous phase which is formed from a polyester polyol-polyurethane hybrid resin having reinforcing particles selected from fly ash, treated red mud and mixtures thereof dispersed therein. The hybrid resin may form an interpenetrating polymer network with a polyurethane and/or a modified hybrid polyurethane resin. The present invention is also directed to a process for preparing the above rigid, lightweight resin foam, and to a composition for use in this process. The foam of the present invention is useful in building materials and the like requiring high tensile and compressive strength and corrosion and thermal resistance.

Abstract: A utilitarian and/or decorative object and a method for forming the object fabricated mainly of a plastic material, such as polyester, having a metallic outer face which thereby imparts to this object the appearance and/or hand of a like object made entirely of metal. In this technique, a mixture of a liquid monomer, a curing agent therefor, a dispersion of metal particles and floatable particles are poured into a mold for forming the object. The metal particles are permitted to settle in the mold or the mold is centrifuged to cause the metal particles to migrate toward the outer or lower region of the piece and concentrate in this region before the monomer polymerizes and hardens to bind the particles.

Abstract: The present invention relates to films or sheets of linear polyester containing glass spheres having a certain particle size distribution and in a certain amount based upon the weight of the polyester film. The addition of the glass spheres improves several properties of the film, including the dynamic coefficient of friction. Preferably, a second film additive, fumed silica, of a controlled particle size distribution and weight is additionally added to the film. The addition of the fumed silica additionally improves several properties of the polyester film, including the static coefficient of friction of the film.

Abstract: A syntactic foam product having a desired configuration is set forth. The product comprises a plurality of rigid gas filled bubbles arranged in the desired configuration. The bubbles are defined by respective individual and discrete substantially spherical shells preferably formed of a biodegradable shell material. The shells abut one another. They define open spaces where they are not abutting. Attaching material attaches the abutting shells to one another. The open spaces between the shells are not filled by the attaching material. The attaching material is environmentally degradable. It releases the bubbles under ambient conditions after a selected time interval. The shells are in contact with their surroundings and can relatively rapidly biodegrade.

Abstract: The present invention relates to films or sheets of linear polyester containing glass spheres having a certain particle size distribution and in a certain amount based upon the weight of the polyester film. The addition of the glass spheres improves several properties of the film, including the dynamic coefficient of friction. Preferably, a second film additive, fumed silica, of a controlled particle size distribution and weight is additionally added to the film. The addition of the fumed silica additionally improves several properties of the polyester film, including the static coefficient of friction of the film.

Abstract: A flame-resistant, hardenable polyorganosiloxane compound is described with a content of 2 to 40 weight % hollow glass balls with an outside diameter of up to 200 .mu.m and 3 to 50 weight % of an inorganic intumescent compound which expands at a temperature from 80.degree. to 250.degree. C. The preferred intumescent compound is expandable graphite. The compound can replace the previous compounds provided with polyhalogenated diphenyl compounds in fireproof windows.

Abstract: A coating composition for the air bag which comprises(A) an organopolysiloxane having a viscosity of 300 cSt or more at 25.degree. C. which is represented by the average composition formula (1) below;R.sub.a.sup.1 SiO.sub.(4-a)/2 (1)(where R.sup.1 denotes a substituted or unsubstituted monovalent hydrocarbon group, and a is a positive number from 1.98 to 2.01.)(B) An organosilane or a partial hydrolyzate thereof having an isocyanate group and a hydrolyzable group in the molecule.(C) An organic peroxide.(D) An organohydrogenpolysiloxane having in the molecule three or more .tbd.SiH groups.It exhibits good self-adhesiveness and gives rise to a coating film which firmly bonds to a base cloth of polyamide or polyester. The adhesion remains stable for a long period of time. In addition, the coating film is almost non-tacky because the coating composition is cured well even by an organic peroxide.

Abstract: Improved, low-cost coating compositions, comprising lightweight, non coated hollow, glass microspheres having high isostatic crush resistance, low specific gravity and low oil absorption, are disclosed for use as cathodic coatings for prevention of corrosion in metallic substrates; and for use as conductive coatings for attenuation of EMI/RFI interference in electronic components, the conductive coatings being suitable for application on metallic and non-metallic substrates.

Abstract: A resin composition comprising (a) an unsaturated polyester, (b) a vinyl monomer, (c) a thermoplastic resin, (d) a curing agent and (e) a hollow filler with a number average particle diameter of not more than 20 .mu., wherein (e) occurs in a proportion of 10 to 150 parts by weight to 100 parts by weight of (a), (b) and (c) combined, and the molding compounds obtainable by impregnating glass fiber with the said resin composition are very useful in that, because of their lower specific gravity, they provide lightweight products with excellent surface quality which are great use as automotive exterior body panels and other parts.

Abstract: A method of producing highly homogeneous material, for constructing bone density phantoms used in calibrating CT machines and the like, dehumidifies the x-ray absorbing constituents of the material and combines them under vacuum to reduce the effects of absorbed atmospheric moisture and of air entrained by the mixing process. The binding polymer into which the x-ray absorbing materials are added is predoped with hardener to increase its viscosity to a point that prevents the migration of the components during the hardening process but that does not prevent their adequate dispersion throughout the mixture. Molds are filled by transferring the unhardened material through a tube connected to the bottom of the mixing vessel and to the bottom of the mold to further prevent the entrainment of air.

Abstract: A self-levelling continuous coating composition is disclosed. The composition is adapted for application on a surface of flooring material which contains asbestos. The composition encapsulates the hazardous material there in the floor and allows the addition of another layer of flooring to be installed thereover. The composition is comprised of about 40-55 parts by weight of a latex emulsion binder; about 2-7 parts by weight antifreeze; about 38-53 parts by weight hollow ceramic microspheres; and about 6-16 parts by weight water. The resulting composition can be applied in a single step application and does not require mixing of separate ingredients at the workplace.

Abstract: A filler and floatability material is an extruded admixture of a thermoplastic resin material and a mineral or organic load lightening material that resists against hydrostatic pressure. The admixture contains 50 to 80% by volume of a polyolefin or a polydiolefin homo- or copolymer as the thermoplastic resin material and 50 to 20% by volume of hollow microspheres as the load lightening material that resists against hydrostatic pressure. The filler and floatability material displays a density ranging from 0.65 to 0.85, elasticity which is greater than 10% distortion, uniaxial compression strength equal to at least 60 bar and water absorption under 50 bar pressure which is lower than 5% by weight.

Abstract: The present invention provides an inventive arylene sulfide coating composition which exhibits enhanced hardness, inertness, abrasion-resistance, and durability. The, inventive composition comprises an arylene sulfide polymer resin and a ceramic microsphere filler. The inventive coating composition can be applied to a substrate in order to improve the degradation resistance of the substrate and provide an article of manufacture well suited for use in high temperature, abrasive, and/or corrosive environments.

Abstract: In a light transmissive epoxy resin composition comprising (A) an epoxy resin and (B) a curing agent are blended (C) an organic phosphorus anti-discoloring agent and (D) silica-titania glass beads surface treated with an organic silicon compound. The composition restrains coloring in composition form and discoloration in cured form while curing into clear low stressed products having high light transmittance. Optical semiconductor devices encapsulated with the cured epoxy resin composition are reliable.

Abstract: An insulating material formed from a network of hollow gas-filled microspheres embedded in a cured three-dimensional cross-linked polymer network of copolymerized unsaturated fluorinated monomers and acrylic monomers reacted in a fluorinated organic solvent.

Abstract: An encapsulating resin composition for electrical and electronic components consists of cycloaliphatic epoxy resin, a hardener, an accelerator, a filler and, sometimes, a pigment. As a result of the combination of the cycloaliphatic epoxy resin with the provision of methylnadic anhydride as hardener and amporhous SiO.sub.2 as a filler, the material is capable of flowing at room temperature, is physiologically harmless and also otherwise well suited for mass production of a wide variety of electrical and electronic components, for example diodes and other semi-conductors for the motor vehicle industry. A small addition of hollow glass spherical particles counteracts sedimentation of amorphous SiO.sub.2 in pre-hardening storage of the resin.

Abstract: A utilitarian and/or decorative object and a method for forming the object fabricated mainly of a plastic material, such as polyester, having a metallic outer face which thereby imparts to this object the appearance and/or hand of a like object made entirely of metal. In this technique, a mixture of a liquid monomer, a curing agent therefor, a dispersion of metal particles and floatable particles are poured into a mold for forming the object. The metal particles are permitted to settle in the mold or the mold is centrifuged to cause the metal particles to migrate toward the outer or lower region of the piece and concentrate in this region before the monomer polymerizes and hardens to bind the particles.

Abstract: Water-based, intumescent, fire retardant material is made from, on a dry basis by weight, 100 parts of a latex such as polychloroprene latex and from 50 to 200 parts of water-insoluble intumescent mineral granules such as hydrated alkali metal silicate granules incorporating an oxy boron compound. This water-based intumescent material dries to an elastomeric state that has a Volume Expansion Factor (as defined) of at least two. It chars into a substantially rigid refractory thermal insulator to prevent fire from penetrating through voids into which the novel intumescent material has expanded.

Abstract: High transparency silica-titania glass beads are characterized by a linear transmittance of at least 70% as measured at a wavelength of 900 nm to 600 nm by a specific measurement method. Such beads are prepared by hydrolyzing and polycondensing a silicon alkoxide and a titanium alkoxide to form a silica-titania sol, converting the sol into a dry gel, and then grinding the gel followed by heating or heating the gel followed by grinding. A light transmisson epoxy resin composition comprising a curable epoxy resin, a curing agent, and the high tranparency silica-titania glass beads has crack resistance and high transparency in cured state. It is useful in encapsulating optical semiconductor devices.

Abstract: A method to prepare uniform populations of macroscopic beads containing pores of at least 0.1 microns diameter is described. The beads consist essentially of a copolymer of a monoethylenically unsaturated monomer and a crosslinking polyethylenically unsaturated monomer, said resulting copolymer optionally being derivatized with functional groups, linking moieties, and/or affinity ligands. The macroporous beads are obtained by utilizing, as porogen in the polymerization reaction, porous inorganic particles which have been preabsorbed with a blowing agent. The blowing agent is not activated until after the polymerization takes place; when the blowing agent is activated, the organic polymer which isolates the inorganic porogen particles from each other in the bead is destroyed. Upon subsequent dissolution of the inorganic porogen, a network of pores throughout the organic copolymer-formed particle is formed. The resulting beads are useful in a variety of chromatographic, analytical and biomedical techniques.

Abstract: A column packing material to be used in gel permeation chromatography (GPC) consists of support particles with a mean particle diameter of 1 to 50 .mu. of which the matrix is formed by an inorganic or organic, polymeric and porous hard material with a mean pore diameter of 6 to 50 nm and a pore volume of 0.1 to 3 ml/g, the matrix pores containing chemically bound polymer chains. The column packing material of the invention is characterized in that the polymer chains consist of linear, permeable and not-crosslinked polymers with an upper exclusion limit between 200 and 200,000, the pores of the matrix being entirely filled by the polymer chains. The method of the invention is characterized in that the pores of the support particles are filled by polymer chains chemically bound to the pore surfaces, these polymer chains being permeable to solvents and partly to dissolved substances.

Abstract: A foamable silicone composition comprises a polysiloxane having silicon-bonded hydrogen atoms, a polysiloxane having siloxane units including unsaturated groups, a polysiloxane having silicon-bonded hydroxyl groups, a noble metal catalyst and from 3 to 40 parts by weight per 100 parts by weight of the composition of entities of borosilicate or silicate glass or mixtures thereof. The composition comprises first and second Parts A and B having viscosities which are sufficiently similar to each other to permit facile machine mixing of the Parts; the first Part comprises the noble metal catalyst and a portion of the entities and the second Part comprises the polysiloxane having silicon-bonded hydrogen atoms and a portion of the entities pretreated with a compatible silane or a polysiloxane having silicon-bonded hydrogen atoms. Preferred entities comprise hollow spherical particles or hollow entities which have an irregular configuration.

Abstract: An insulating composition comprises a polyolefin, preferably polypropylene, and hollow microspheres, at least some of which have been pre-treated with a chain-scission agent and, optionally, a functionalizing agent for the polyolefin, before addition to the polyolefin melt. The provision of the chain-scission on the microspheres enables the microspheres to be compounded substantially without breakage with low Melt Flow Index polyolefins, with the result that the resultant composite material can be employed in rigorous application areas, for examples as an extruded flowline insulation.

Abstract: An insulation material made of rigid microballons within the pores of a porous polymeric base material.

Abstract: The present invention relates to films or sheets of linear polyester containing glass spheres having a certain particle size distribution and in a certain amount based upon the weight of the polyester film. The addition of the glass spheres improves several properties of the film, including the dynamic coefficient of friction. Preferably, a second film additive, fumed silica, of a controlled particle size distribution and weight is additionally added to the film. The addition of the fumed silica additionally improves several properties of the polyester film, including the static coefficient of friction of the film.

Abstract: The present invention relates to films or sheets of linear polyester containing glass spheres having a certain particle size distribution and in a certain amount based upon the weight of the polyester film. The addition of the glass spheres improves several properties of the film, including the dynamic coefficient of friction. Preferably, a second film additive, fumed silica, of a controlled particle size distribution and weight is additionally added to the film. The addition of the fumed silica additionally improves several properties of the polyester film, including the static coefficient of friction of the film.

Abstract: Compositions are disclosed which are suitable for the preparation of thermoplastic syntactic foam intermediate and final products. These compositions comprise a slurry or putty containing thermoplastic particles, microballoons, and a non-solvent, optionally in the presence of suitable thickeners, binders, and surfactants. In a preferred embodiment, the composition contains particles of an engineering thermoplastic having a mean particle size less then about 100 .mu.m, microballoons, water as the non-solvent, and a thickener/binder which is a lightly crosslinked polyacrylic acid.

Abstract: A column Packing material to be used in gel permeation chromatography (GPC) consists of support particles with a mean particle diameter of 1 to 50 .mu. of which the matrix is formed by an inorganic or organic, polymeric and porous hard material with a mean pore diameter of 6 to 50 nm and a pore volume of 0.1 to 3 ml/g, the matrix pores containing chemically bound polymer chains. The column packing material of the invention is characterized in that the polymer chains consist of linear, permeable and not-crosslinked polymers with an upper exclusion limit between 200 and 200,000, the pores of the matrix being entirely filled by the polymer chains. The method of the invention is characterized in that the pores of the support particles are filled by polymer chains chemically bound to the pore surfaces, these polymer chains being permeable to solvents and partly to dissolved substances.

Abstract: An improved lightweight, ablative coating that may be spray applied and cured without the development of appreciable shrinkage cracks. The ablative mixture consists essentially of phenolic microballoons, hollow glass spheres, glass fibers, ground cork, a flexibilized resin binder, and an activated colloidal clay.

Abstract: An expendable syntactic foam energy absorber having application to vehicles comprising first hollow ceramic microspheres and substantially smaller hollow ceramic microspheres distributed to fill the interstices between the first microspheres. An elastomeric binder is blended into the microsphere intermix to fill in any residual interstices between the microspheres while binding the microspheres in substantially abutting contact and leaving substantially no room for the binder to move.

Abstract: An in situ polymerized thermplastic resin incorporating hollow glass spheres, which are incorporated during polymerization of the resin, and a method of making a concentrate of hollow glass spheres dispersed in a thermoplastic resin with minimal sphere fracture by adding the spheres during polymerization of the resin.

Abstract: A low density self-extinguishing epoxide composition employing an epoxide, an epoxide hardener, a smoke suppressant and a low density filler is provided. The composition contains from 3 to 10 weight percent bromine.

Abstract: An improved moldable low density thermoplastic composite containing hollow glass spheres comprising a blend of thermoplastic resin, glass fiber reinforcement, and a concentrate of hollow glass spheres dispersed in thermoplastic resin.

Abstract: The invention provides a solid adhesive composition useful for temporary and repeated fixation of an article on a surface which comprises about 5.0 to about 45 weight percent of an acrylic resin having a glass transition point of -10.degree. C. or below about 0.1 to about 2.0 weight percent of a polyacrylic acid-based thickening agent, about 5.0 to about 30 weight percent of a fatty acid soap, about 0.1 to about 2.0 weight percent of an alkali hydroxide, about 0.1 to about 10 weight percent of microspheres with an average grain size of about 10 to about 200 .mu.m and about 2.0 to about 60 weight percent of water.

Abstract: Disclosed is a thermosetting resin composition comprising (a) a preliminary reaction product between a polyamino compound and an unsaturated bismaleimide compound, (b) an epoxy group-containing vinyl compound, (b') a vinyl group-free aliphatic or aromatic halogenated epoxy compound, (c) an epoxy curing agent and (d) a radical polymerization initiator as indispensable components. This composition is characterized in that the vinyl group-free aliphatic or aromatic halogenated epoxy compound as the component (b') is incorporated. This unsaturated bismaleimide type thermosetting resin composition is excellent in not only heat resistance and strength but also flame retardancy and light weight characteristic.

Abstract: A reflective marker for highway striping, signs and other surfaces is produced from a multiplicity of thermoplastic or thermosetting granules in the shape of tetrahedrons. A plurality of glass spheres having a diameter in the range of from about 6.0 microns to about 0.125 inches are substantially evenly dispersed throughout each granule with some of the spheres protruding through the outer granule surfaces. To form the granules the glass spheres, the granule material and a suitable pigment are mixed together and then applied to a flexible sheet or a roller containing a multiplicity of tetrahedron-shaped indentations. The mixture is urged into each of the indentations and is then cured. The resulting granules are removed from the indentations and are dropped from a random position onto a freshly painted highway line or other surface such that one of the flat faces on each granule is disposed in a downward direction.

Abstract: A method of making thermal insulating products comprising porous, lightweight, high temperature resistant inorganic particles in a polyimide foam matrix and the product thereof. A polyimide precursor powdered is mixed with about equal weight of flake-like porous inorganic particles to substantially uniformly coat the particles with powder. The mixture is placed in a mold and compressed slightly. The assembly is heated to the foaming temperature of the polyimide precursor for a period suitable to produce uniform foaming. Then the temperature is raised to the curing and crosslinking temperature of the precursor for a time period sufficient to produce complete cure. A high temperature and flame resistant, light weight, highly insulating product results. If desired, protective sheets of material may be bonded to selected product surfaces during or after the molding operation.

Abstract: There is provided a porous cellular material comprising a plurality of cavities each defined by a substantially spherical wall formed of a rigid intermeshing matrix of ceramic needles said wall being pierced by at least one aperture to provide access to the cavity, and the or each aperture having a diameter such that the ratio of the diameter of the aperture to the diameter of the cavity into which the aperture opens is in the range of from 0.1:1 to 1:1.

Abstract: An expandable polymer concrete or mortar composition, and process for producing it, which allows the use of low temperature cure resins by incorporating a substituted mineral which is able to expand in the polymer concrete mix so that the dilation of the mineral will counteract the shrinking effect of the curing resin. The substituted mineral may be selected from the montmorillonite group and is produced by substituting its water of hydration with a higher volatility composition such as ammonia.

Abstract: A method of making thermal insulating products comprising porous, lightweight, high temperature resistant inorganic particles in a polyimide foam matrix and the product thereof. A polyimide precursor powdered is mixed with about equal weight of flake-like porous inorganic particles to substantially uniformly coat the particles with powder. The mixture is placed in a mold and compressed slightly. The assembly is heated to the foaming temperature of the polyimide precursor for a period suitable to produce uniform foaming. Then the temperature is raised to the curing and crosslinking temperature of the precursor for a time period sufficient to produce complete cure. A high temperature and flame resistant, light weight, highly insulating product results. If desired, protective sheets of material may be bonded to selected product surfaces during or after the molding operation.

Abstract: A method of making thermal insulating products comprising porous, lightweight, high temperature resistant inorganic particles in a polyimide foam matrix and the product thereof. A polyimide precursor powdered is mixed with about equal weight of flake-like porous inorganic particles to substantially uniformly coat the particles with powder. The mixture is placed in a mold and compressed slightly. The assembly is heated to the foaming temperature of the polyimide precursor for a period suitable to product uniform foaming. Then the temperature is raised to the curing and crosslinking temperature of the precursor for a time period sufficient to product complete cure. A high temperature and flame resistant, light weight, highly insulating product results. If desired, protective sheets of material may be bonded to selected product surfaces during or after the molding operation.