Abstract: Provided is a liquid crystal polyester resin composition comprising 100 parts by weight of a liquid crystal polyester resin, 2 to 50 parts by weight of hollow sphere having an average particle diameter of 5 to 500 &mgr;m and a volume hollowness of 60 to 80%, and 0 to 40 parts by weight of inorganic fiber, wherein said liquid crystal polyester resin composition has the specific range of fracture rate of the hollow sphere. The liquid crystal polyester resing composition gives a molded product having necessary mechanical physical properties, light-weighted and excellently low thermal conductivity, with good reproducibility.

Abstract: A method of manufacturing syntactic foam is disclosed which includes the steps of combining a polymer, microspheres and a solvent to form a slurry. At least a portion of the solvent is removed through a porous wick, and conditions are applied which substantially solidify the polymer.

Abstract: The invention relates to compositions useful for bonding fluoropolymer to substantially non-fluorinated polymer. The compositions of the invention comprise a substantially non-fluorinated polymer or a mixture of said polymers, a di- or polyamine, preferably, an aliphatic diamine, and an onium catalyst, preferably, a phosphonium salt.

Abstract: A two part system for producing structural reinforcing adhesives is provided wherein one component containing epoxy resin is combined with a second component containing a specified curative system. An aliphatic polyamine, an amidoamine, an alcohol and an adduct of a polyamine and an epoxide are present in the curative system. When a thermally activated blowing agent is utilized, the resulting foam is remarkably uniform in cell structure and has improved strength and modulus. Hollow inorganic microspheres are employed to reduce the density of the thermoset produced from the two part system.

Abstract: Hollow particles having a shell substantially composed of calcium-phosphate, methods for preparing the same, and methods of use are disclosed. The particles are obtained by differential immersion of silica-based, calcium and phosphate containing glass particles.

Abstract: The ferrules and feeding head and supply elements, insulating or exothermic, are obtained by blowing or manual molding from a formulation which comprises aluminium silicate hollow micro beads, with an alumina content below 38% in weight, an agglomerant and optional loads, in non fibrous form. Depending on the density of the micro beads, appropriate formulations may be obtained for the manufacture of ferrules and insulating and exothermic feeding head and supply elements. the ferrules obtained, have an external and internal dimensional exactness and may be coupled to the mold after production, without additional handklings and in a manual or automatic manner. Said ferrules are of interest in the production of metallic ferreous or non ferreous parts.

Abstract: A tooth treated with a bonding composition with high initial bonding strength and good bonding durability comprising a mixture of polymerizable compound having an acid group, a water-soluble film-forming agent, water, and a curing agent, in which the calcium salt of the acid is insoluble in water, and the film-forming agent is a polymerizable compound miscible with a physiological saline solution, does not require any pre-treatment such as acid-etching or priming treatment.

Abstract: A process for the production of insulating coatings containing polyurethane groups and/or polyisocyanurate groups for hollow bodies by reaction of a) a polyisocyanate component with b) compounds which contain at least two hydrogen atoms which are active towards isocyanates and c) catalysts, optionally in the presence of d) further auxiliary substances and additives, characterised in that organic or mineral hollow microbeads having an average particle size in the range from 5 to 200 &mgr;m and a density in the range from 0.1 to 0.8 g/cm3 are added to at least one of components a) to d), is described. The use of these insulating coatings for pipes employed in the offshore sector is furthermore described.

Abstract: A foundry exothermic assembly is formed by mixing hollow glass microspheres and an inorganic or organic binder with matrix forming constituents including an oxidizable metal, an oxidizing agent, a foundry refractory aggregate and, optionally, a pro-oxidant, and shaping and curing the mixture. The hollow glass microspheres are dispersed and embedded in the assembly matrix.

Abstract: Novel low VOC solvent-based adhesives are provided, comprising a mixture of low vapor pressure, isomeric dimethyl-2-piperidones (DMPD) blended with (1) a non-solvent diluent, specifically, acetone (a VOC-exempt compound), or with mixtures of acetone and other known ketonic solvents such as methyl ethyl ketone (MEK), diethyl ketone (DEK), methyl propyl ketone (MPK), and methyl iso-butyl ketone (MIBK), cyclohexanone, and (2) thermoplastic PVC or CPVC resins. Omission of the resin provides a novel primer for pipes. The blended mixture yields PVC or CPVC pipe adhesives and primers that: (1) result in low VOC formulas (e.g., less than 510 g/l for PVC pipe and less than 490 g/l for CPVC pipe); (2) are very economical in the industry; (3) yield strong, quick setting, durable pipe joints that meet the required standards and performance criteria (e.g., ASTM D-2564 lap shear for PVC); (4) yield stable, low viscosity solutions that, in the case of adhesives, can be readily adjusted with thixotropes (e.g.

Abstract: Foamable compositions which exhibit reduced surface tack and better handling characteristics are obtained through the use of specific combinations of epoxy resins. One or more solid epoxy resins are utilized together with liquid and/or semi-solid epoxy resins. The compositions, which preferably contain hollow glass microspheres, are capable of providing foams which are useful in the manufacture of reinforced structural members.

Abstract: This invention relates to insulating sleeve compositions comprising (1) a major amount of hollow aluminosilicate microspheres, and (2) fine silica. The sleeve compositions are used to form sleeve mixes by mixing them with a chemically reactive binder. Sleeves are formed from the sleeve mix and are cured in the presence of a catalyst by the cold-box or no-bake cuing process. The invention also relates to a process for casting metal parts using a casting assembly where the sleeves are a component of the casting assembly. Additionally, the invention relates to the metal parts produced by the casting process.

Abstract: Cores for manufacture of molded products are fabricated from ceramic microspheres in combination with 5-20% polymer binder in water solution, the binder comprising poly(2-ethyl-2-oxazoline) and polyvinylpyrrolidone.

Abstract: The present invention is a low-specific-gravity liquid silicone rubber composition comprising (A) 100 parts by weight of diorganopolysiloxane which is liquid at room temperature and contains at least two silicon-bonded alkenyl groups in each molecule, (B) an organohydrogenpolysiloxane which has at least two silicon-bonded hydrogen atoms in each molecule at a mole ratio of silicone-bonded hydrogen atoms contained in this component (B) to silicon-bonded alkenyl groups contained in component (A) within a range of 0.3:1 to 5:1, (C) a platinum catalyst providing metallic platinum atoms in an amount of 0.1 to 500 parts by weight per 1,000,000 parts by weight of component (A) (D) 0.5 to 30 parts by weight of gas-filled hollow particles having shells made of a non-silicone thermoplastic resin, and (E) 0.05 to 10 parts by weight of gas-filled hollow particles having shells made of a thermoplastic silicone resin.

Abstract: This invention relates to exothermic and insulating sleeve mixes comprising (1) a sleeve composition comprising stabilized hollow aluminosilicate microspheres, and (2) a chemically reactive binder. Sleeves are formed from the sleeve mix and are cured in the presence of a catalyst by the cold-box or no-bake curing process. The invention also relates to a process for casting metal parts using a casting assembly where the sleeves are a component of the casting assembly. Additionally, the invention relates to the metal parts produced by the casting process.

Abstract: A syntactic foam composition is formed from a resin binder containing microspheres and minispheres and having a thermal conductivity less than 0.120 watts/meter° K.

Abstract: The present invention is a low-specific-gravity liquid silicone rubber composition comprising

Abstract: The present invention provides heat insulation compositions and methods. The compositions are basically comprised of an epoxide containing liquid, an insulating material and an epoxide hardening agent.

Abstract: Provided is a liquid crystal polyester resin composition comprising 100 parts by weight of a liquid crystal polyester resin, 2 to 50 parts by weight of hollow sphere having an average particle diameter of 5 to 500 &mgr;m and a volume hollowness of 60 to 80%, and 0 to 40 parts by weight of inorganic fiber, wherein said liquid crystal polyester resin composition has the specific range of fracture rate of the hollow sphere.

Abstract: Self-repairing, fiber reinforced matrix materials include a matrix material including inorganic as well as organic matrices. Disposed within the matrix are hollow fibers having a selectively releasable modifying agent contained therein. The hollow fibers may be inorganic or organic and of any desired length, wall thickness or cross-sectional configuration. The modifying agent is selected from materials capable of beneficially modifying the matrix fiber composite after curing. The modifying agents are selectively released into the surrounding matrix in use in response to a predetermined stimulus be it internal or externally applied. The hollow fibers may be closed off or even coated to provide a way to keep the modifying agent in the fibers until the appropriate time for selective release occurs.

Abstract: The thermal insulating material of the present invention allows for the use of microballoons as an insulating material for the exterior surface of pipes. In the present invention, microballoons are mixed with a water based epoxy while in its liquid state. To absorb the water from the water based epoxy, cement is added to the mixture. The mixture of water based epoxy, microballoons and cement is then extruded or thrown onto the exterior surface of pipes.

Abstract: Conditioning of the surface of silica-based glass or ceramic by differential immersion in a serum protein-containing solution, and the resultant microporous Ca—P surface layer having serum-protein like organic molecules, as defined herein intermingled throughout, is described.

Abstract: A resin concrete composition and its molded article are provided, the resin concrete, even with a reduced resin content, having an excellent flowability, which is an important property in a molding operation, and necessitating no shrinkage reduction agent, and the molded article having no cracks and being highly strong. The resin concrete composition comprises (A) a resin composition containing (a) an unsaturated polyester of an unsaturated acid, a di- and/or trialkylene glycol, and dicyclopentadiene and (b) a polymerizable unsaturated monomer, (B) an aggregate, and (C) a filler.

Abstract: Titanates and zirconates bearing organic substituents can act as corrosion inhibitors when added to foamable compositions based on thermosettable synthetic resins such as epoxy resins. Combinations of organometallates containing certain specific types of substituents provide synergistic improvements in the properties of structural reinforcement foams obtained by heating and curing the foamable compositions.

Abstract: An adhesive composition, which comprises either an A- or B-side epoxy, and further includes a plurality of microspheres blended into either the A-side epoxy alone, the B-side epoxy alone, or into both. The microspheres of the invention are preferably made of a thermoplastic shell. As a result of the use of this adhesive between two substrates, a thin, strong bond may be formed between those two substrates. The bond is formed by a combination of an epoxy and a plurality of the microspheres. This epoxy and microsphere combination substantially inhibits seepage of the epoxy through the holes in a first, porous substrate.

Abstract: A compressible silicone composition formable from a silicone gel-forming composition and a hollow compressible filler which is adapted to be used in an electrically insulating seal. The compressible silicone composition comprises a mixture of organosilicon compounds which can crosslink to form a silicone gel and hollow compressible microspheres.

Abstract: Podalic foot pads of various shapes and configurations which utilize a padding material that is primarily an A-B-A triblock copolymer and a plasticizer. A-B diblock copolymers may be compounded into the padding material. An anti-bleed agent is preferably employed. The plasticizer may be a resin, mineral oil or otherwise. A detackifier may be employed such as grape seed oil or another slip agent. Antioxidants, pigments and micropsheres may be added to the material. The material has good cushioning properties.

Abstract: Composite products incorporating a polymer matrix, polymer microspheres, glass microspheres and natural fibers, particularly kenaf and wood fibers, are described. The polymer microspheres are 15 to 50 microns in diameter and are smaller than the glass microspheres which are 50 to 200 microns in diameter. The polymer microspheres reduce voids and prevent cracking of the glass microspheres upon compression. The composites have low cost and high strength.

Abstract: A method for making a particulate filled polymeric matrix composite film includes mixing a polymeric matrix material with a dispersion of particulate filler in a carrier liquid to form a casting composition and adjusting the viscosity of the casting composition to retard separation of the particulate filler from the composition. A layer of the viscosity-adjusted casting composition is cast on a substrate and the layer is consolidated to form the particulate filled polymer matrix composite film. Films made by the method include very thin, e.g less than 1.0 mil, fluoropolymeric matrix films highly filled with very small diameter, preferably spherical, particles for use as, e.g. dielectric substrate materials in laminar electrical circuits.

Abstract: The present invention relates to the use of hollow microspheres filled with a hydrocarbon, to introduce uniform cell geometries in syntactic foams having a bimodal cell structure. The rigid foam product includes from 20 to 80 percent by weight of the hollow microspheres, the microspheres having average diameters ranging from 80 to 200 microns. The microspheres are encapsulated from 80 to 20 percent by weight of a closed cell polyurethane foam, the cells of the foam having average diameters from 0.01 to 60 microns.

Abstract: A mechanically undensified aromatic polyimide foam is made from an aromatic polyimide precursor solid residuum and has the following combination of properties: a density according to ASTM D-3574A of about 0.5 pounds/ft.sup.3 to about 20 pounds/ft.sup.3 ; a compression strength according to ASTM D-3574C of about 1.5 psi to about 1500 psi; and a limiting oxygen index according to ASTM D-2863 of about 35% oxygen to about 75% oxygen at atmospheric pressure. The aromatic polyimide foam has no appreciable solid inorganic contaminants which are residues of inorganic blowing agents. The aromatic polyimide which constitutes the aromatic polyimide foam has a glass transition temperature (Tg) by differential scanning calorimetry of about 235.degree. C. to about 400.degree. C.; and a thermal stability of 0 to about 1% weight loss at 204.degree. C. as determined by thermogravimetric analysis (TGA).

Abstract: Titanates and zirconates bearing organic substituents can act as corrosion inhibitors when added to foamable compositions based on thermosettable synthetic resins such as epoxy resins. Combinations of organometallates containing certain specific types of substituents provide synergistic improvements in the properties of structural reinforcement foams obtained by heating and curing the foamable compositions.

Abstract: A low-density polymer composition and use thereof in undersea flotation cables and the like, the composition comprising by volume based on the whole composition,(a) at least 30% of a polymer component consisting of (i) thermoplastic polyolefin elastomer of room temperature density less than 0.9 g/cc and/or (ii) thermoplastic olefin/(ester or acid) copolymer elastomer, and(b) at least 30% of micro-balls of room-temperature density less than 0.6 g/cc, at least 80%, preferably at least 90%, more preferably at least 95%, by weight, of the micro-balls having a maximum dimension less than 300 .mu.m, preferably less than 200 .mu.m.Preferred elastomers are metallocene-catalysed olefin copolymers of density 0.86-0.88 g/cc, and micro-balls of diameters 10-45, preferably 10-34, micrometers are advantageous in resisting pressures up to 50 MPa (5 km under sea).

Abstract: CPVC adhesives for joining CPVC substrates, pipes and articles are provided which comprise (a) about 5 to about 25 wt. % CPVC resin, (b) about 20 to about 90 wt. % of a single pentanone or blends of pentanones, (c) 0 to about 20 wt. % total heterocyclic solvent, and (d) 0 to about 45 wt. % total of non-heterocyclic solvents other than component (b) (such as MEK, acetone, cyclohexanone, and so forth). The CPVC adhesive compositions of this invention permit a reduction in the content of heterocyclic solvents to be achieved while meeting performance standards applicable to CPVC pipe joining, such as hydrostatic burst strength and hydrostatic sustained pressure test.

Abstract: A biologically active composition comprising a solution of an active agent dissolved in a glass-forming carrier, which carrier comprises a glass-forming substance (A) containing a plasticizer (B), the amount of plasticizer preferably being selected so that the composition has a non-solid consistency. The composition can be prepared by dissolving the active agent in a melted mixture of the glass-forming substance and the plasticizer at a temperature below the decomposition temperature of said active agent. Use of the glass-forming carrier for dissolving a biologically active agent.

Abstract: A low density polymer composition including a polymer component capable of being cured, a low density filler in an amount sufficient to reduce the density of the polymer and a thixotrope present in a sufficient amount to impart a sufficient viscosity and to inhibit separation of the filler from the polymer until after the polymer is cured. The resulting lightweight, filled polymer composition is a strong electrical insulator, has low shrinkage, a low coefficient of thermal expansion, low cured density and a soft filler that does not harden the polymer. Methods of preparing and using the low density polymer compositions are also disclosed.

Abstract: A yellow, hot melt alkyd traffic marking composition is described. The yellow, hot melt alkyd traffic marking composition contains 10-25 percent by weight of a hot melt alkyd binder, 5-10 percent by weight of a thermally stable 1,5- or 1,8-substituted anthraquinone colorant selected from a 1,5- or 1,8-substituted anthraquinone aromatic thioether and a 1,5- or 1,8-substituted anthraquinone aromatic thioether polyester, and 65-85 weight percent of a filler. The yellow, hot melt alkyd traffic marking composition of the invention may also contain other components used in traffic marking compositions, such as a reflectivity aid, a plasticizer, or an impact modifier. Other optional components are discussed below. The yellow, hot melt alkyd traffic marking compositions may be applied to any paved surface.

Abstract: The invention provides novel compositions and golf balls formed from those compositions. The compositions generally include a cured blend of an elastomer, a peroxide polymerization agent, a co-agent, and an unsaturated polycarboxylic acid. More particularly, the cured composition includes a cured blend of cis 1,4 polybutadiene, dicumyl peroxide, zinc diacrylate, and fumaric acid. One piece golf balls formed of these compositions have improved durability.

Abstract: A thixotropic agent is blended in a silicone rubber composition comprising an alkenyl radical-containing organopolysiloxane, an organohydrogenpolysiloxane, an addition reaction catalyst, and filler balloons having a specific gravity of 0.01-0.40 and a mean particle size of 1-300 .mu.m. The resulting composition effectively restrains floating and separation of the filler, remains stable and is thus suitable for injection molding.

Abstract: A yellow, hot melt adhesive traffic marking composition is described. The yellow, hot melt adhesive traffic marking composition contains 10-25 percent by weight of a hot melt adhesive binder, 5-10 percent by weight of a thermally stable 1,5- or 1,8-substituted anthraquinone colorant selected from a 1,5- or 1,8-substituted anthraquinone aromatic thioether and a 1,5- or 1,8-substituted anthraquinone aromatic thioether polyester, and 65-85 weight percent of a filler. The yellow, hot melt adhesive traffic marking composition of the invention may also contain other components used in traffic marking compositions, such as a reflectivity aid, a plasticizer, or an impact modifier. Other optional components are discussed below. The yellow, hot melt adhesive traffic marking compositions may be applied to any paved surface.

Abstract: A buoyancy material comprising:i. a matrix obtainable by reacting a dispersion of polyester precursor in water with a catalyst; andii. at least one density reducing agent selected from the group consisting of gas bubbles, microspheres and macrospheres dispersed in the matrix.

Abstract: The invention relates to a mixture for the manufacture of intumescent shaped parts with a composition containing in percentage by weight, 30-60% thermoplastic, 40-70% expandable graphite and 5-40% filler mixture. The mixture does not attack processing machines and has an improved foaming behavior. A particular characteristic of the mixture is that the filler mixture forms OH.sup.- ions when it contacts moisture.

Abstract: Curable organosiloxane compositions that cure by a platinum group metal catalyzed hydrosilation reaction to yield machinable elastomers exhibiting a high resistance to erosion contain an alkenyl-functional organosiloxane copolymer as the reinforcing agent together with quartz and organic or inorganic microspheres as the non-reinforcing filler. The concentration and density of the microspheres are preferably within specified limits.

Abstract: The non-flammable phenolic resin foam with plane surface and high fire resistance in this invention is produced by mixing 30 to 100 parts by weight of resol type phenolic resin, 0.3 to 10 parts by weight of foaming agent, 10 to 50 parts by weight of curing agent, 30 to 800 parts by weight of ceramic micro-hollow particles (compression strength of 600 kgf/cm.sup.2 or more, bulk density of 0.3 to 0.5 g/cm.sup.3 and melting point of 1500.degree. C. or more), 2 to 250 parts by weight of inorganic filling agent, 40 to 250 parts by weight of aluminum hydroxide with water, press molding and heating for curing.

Abstract: Compositions and methods of making the same, the compositions including a binder, solvent for the binder, humectant, wax, an emulsifier for the wax, filler, a cross-linking agent for the binder, and various additives. The binder preferably is polyvinyl alcohol. The filler preferably includes glass microspheres, talc and flour. The wax preferably includes paraffin and microcrystalline waxes.

Abstract: The invention concerns paint compositions for providing road markings, in particular on wet roadways. The paint compositions essentially comprise: at least one unsaturated polyester; at least one ethylenically unsaturated monomer; at least one polymerization accelerator selected from toluidine derivatives; at least one colored pigment; at least one compound which can exude at the surface of the paint and prevent oxygen in the air from inhibiting polymerization; glass beads and dibenzoyl peroxide.

Abstract: Particulate inorganic pore material, e.g., controlled pore glass (CPG) embedded porous synthetic resin membrane is prepared by mixing inorganic pore material and an aqueous resin, preferably polytetrafluoroethylene (PTFE), aqueous dispersion to form a paste-like mass, heating the mass at a temperature between 50 to 70.degree. C., and forming the mass into a sheet by calendering. The sheet is then sintered to produce a rigid porous sheet. The membrane may be functionalized, as by silanization. The membrane is useful for the same purposes as controlled pore glass or functionalized controlled pore glass.

Abstract: Aqueous dispersions comprising emulsified polyolefins and metal salts of phosphoric acid esters which are useful for sizing glass fibers.

Abstract: A polyfluoroalkyl silicone having the general formula:M.sub.a M'.sub.b D.sub.c D'.sub.d T.sub.e T'.sub.f Q.sub.g ;whereM=R.sup.1.sub.u R.sup.2.sub.v R.sup.3.sub.w SiO.sub.1/2 with the sum of the subscripts u+v+w being 3 and the subscripts v and w are each independently 0 or 1;M'=R.sup.4 R.sup.5 R.sup.6 SiO.sub.1/2 ;D=R.sup.7.sub.x R.sup.8.sub.y SiO.sub.2/2 with the sum of the subscripts x+y being 2 and y is 0 or 1;D'=R.sup.9 R.sup.10 SiO.sub.2/2 ;T=R.sup.11.sub.z SiO.sub.3/2 with the subscript z being 1;T'=R.sup.12 SiO.sub.3/2 ; andQ=SiO.sub.4/2 ;where the substituent groups R.sup.2, R.sup.3, R.sup.4, R.sup.5, R.sup.6, R.sup.8, R.sup.9, R.sup.10, and R.sup.12 are each independently selected from the group of one to forty carbon atom monovalent hydrocarbon radicals, the subscripts a, b, c, d, e, f, and g are zero or positive integers with the substituent groups, R.sup.1, R.sup.7, and R.sup.11, each independently selected from the group of consisting of monovalent polyfluoroalkyl groups having the formula CF.

Abstract: A moulding material composition for use in sanitary appliances, such as plastic sinks, baths, or wash basins, having a polyester resin in a monomer liquid having a polymerizable vinyl group, a thermoplastic non-shrink polymer, an organic peroxide, glass fibers, a stripping agent of either calcium or zinc stearate; and a filler material. The filler material can be either chemically coated glass micro-beads or calcium carbonate in a marble crystalline form. The calcium carbonate can be provided with or without a pigment coating. In particular, the pigment can be of a polyurethane epoxy material.