Abstract: The invention is an aqueous composition for forming fireproof coatings and caulking. The composition is halogen, asbestos and antimony-free. The composition contains 5-20% by weight of a binder resin; 10-60% by weight of a particulate flameproofing agent; 0.2 to 27.5% by weight of non-asbestos inorganic fibers with an average length of 300 micron; 0.1 to 10% by weight of a plasticizer; and water.

Abstract: A method of gelling a guar or derivatized guar polymer solution utilized to perform a hydraulic fracturing operation includes the step of adjusting the pH of the guar or derivatized guar polymer solution to between about 8.5 and 12.5. After adjusting the pH, an anhydrous boron compound or a sparingly soluble borate suspended in a mineral spirits-resin solution or an oil-resin solution is added to the guar or derivatized guar polymer solution. The guar or derivatized guar polymer solution and the anhydrous boron compound or the sparingly soluble borate solution suspended in the mineral spirits-resin solution or the oil-resin solution is then pumped into a subterranean formation under sufficient pressure to cause a fracture in the formation rock.

Abstract: The use of calcium pyroborate to protect plastic materials from microbiological, growth, attack, or degradation, is described. The calcium pyroborate may be modified to reduce its solubility in water and provide longer microbicide effectiveness.

Abstract: The composition of the present invention is a kind of crosslinked, flame-retardant resin composition, which comprises a base polymer of EVA-VC, chlorinated polyethylene, thermal stabilizers, antioxidants, flame-retardant fillers, lubricants and monomers with multifunctional group.The composition essentially comprises 100 weight parts of EVA-VC, 10 to 70 weight parts of chlorinated polyethylene, 40 to 120 weight parts of flame-retardant fillers, and 5 to 20 weight parts of monomer with multifunctional group.In addition, the composition is crosslinked by electron beam to be used as the material for sheath layer of electric wire or cable durable to high voltages.

Abstract: A vibration-isolating composite material consists essentially of powder of an inorganic elastic material and a synthetic polymer mixed thereto. The inorganic elastic material is at least one material selected from the group consisting of NdP.sub.5 O.sub.4, BiVO.sub.3, Gd.sub.2 (MoO.sub.4).sub.3, GdNbO.sub.4 and KH.sub.2 PO.sub.4 and the synthetic polymer is at least one material selected from the group consisting of thermoplastic resins, thermosetting resins and rubber materials.

Abstract: Optical grade polycarbonate resin compositions and methods for their preparation are disclosed. The disclosed compositions are comprised of polycarbonate resins and esters of aliphatic carboxylic acids and alcohols and exhibit good mold release and thermal stability while experiencing little discoloration during molding.

Abstract: An intumescent fire-resistant coating and a fire-resistant material using the same are disclosed, the coating essentially including (A) at least one inorganic compound selected from the group consisting of a carbide, boride, nitride, carbonitride, or carboboride of titanium, zirconium, vanadium, niobium, tantalum, molybdenum, tungsten, silicon or chromium and a carbide, nitride or carbonitride of boron, (B) a synthetic resin, and (C) at least one phosphorus and/or sulfur compound capable of forming a Lewis acid on heating.

Abstract: Compositions and methods are provided which provide improved viscosity reduction of crosslinked hydratable polymer treating fluids in the presence of uncured resin-coated proppants. The uncured resins are generally uncured phenolic or furan resins. The breaker comprises an oxidizing agent to which is added a sequestering agent comprising a copolymer of vinylpyrrolidone and acrylic acid to sequester at least a portion of any phenolic extracts from said resin that may be present in said treating fluid from contact with the uncured resin.

Abstract: An insulated wire comprising a conductor and an insulating coating which has a tensile strength of at least 13 kg/mm.sup.2 and a Young's modulus of at least 270 kg/mm.sup.2, which has good flexibility and resistance to flaw.

Abstract: By blending a silazane with an organic silicon polymer such as polycarbosilane and polysilazane and inorganic powder such as alumina and silica, there is obtained a coating composition which can be applied and baked onto metallic and non-metallic substrates to form dielectric coatings which are improved in many properties including substrate adhesion, hardness, electrical insulation, heat resistance, water resistance, and chemical resistance.

Abstract: A polymeric composition containing internal lubricants is suitable for low friction applications. The composition contains from about 65 to about 85 weight percent of a polymeric blend and from about 15 to about 35 weight percent of internal lubricants, wherein said blend consists essentially of from about 35 to about 100 weight percent of polybenzimidazole and from about 0 to about 65 weight percent of poly(aryletherketone), and said lubricants consist essentially of graphite and boron nitride in a weight ratio of about 1:10 to about 10:1, respectively. The composition is useful for preparing shaped articles such as bearings, bearing sleeves, rings, etc.

Abstract: The impact strength of articles made from a flame-retarded formulated HIPS resin containing an impact modifier is increased by forming a concentrate or masterbatch containing the flame retardant and impact modifier, blending the concentrate with HIPS resin, and extruding the resultant blend.

Abstract: A compactible polybenzimidazole composition contains from about 95 to about 5 weight percent of solid lubricant particles which are uniformly dispersed and encapsulated in from about 55 to about 95 weight percent of polybenzimidazole. The solid lubricant comprises graphite and boron nitride in a weight ratio of about 10:1 to about 1:10. The composition is useful for preparing self lubricating, shaped articles such as bearings, bearing sleeves, rings, seals, etc. which exhibit low friction properties.

Abstract: An aqueous dispersion of ceramic materials and a method for preparing the same are provided. The method involves dispersing ceramic materials using one or more polymeric dispersants. The polymeric dispersants have monomer composition of from about 20 to about 95 percent by weight of one or more carboxylic acid monomers or salts thereof, from about 5 to about 80 percent by weight of one or more sulphonic acid or phosphonic acid monomers or salts thereof, and from about 3 to about 20 percent one or more monoethylenically unsaturated acid-free monomers.

Abstract: The polyurethane oligomer reaction product of a hydroxyl-terminated prepolymer with a dicarboxylic acid anhydride is incorporated into conventional thermosetting polyester resin formulations to impart improved impact properties and reduced shrinkage behavior.

Abstract: A room temperature setting carbonaceous cement comprising a solid carbonaceous material, a catalyst and a liquid carbonizable component, and a boron containing or phosphorus containing material, which when treated with the catalyst will possess increased oxidation resistance at elevated temperatures.

Abstract: Electrically conductive resin compositions are provided. The electrically conductive resin composition comprises(A) the following in a total of 100 parts by weight:(a) 50-99 parts by weight of polyether imide resin, and(b) 1-50 parts by weight of polyphenylene sulfide resin; and(B) 1-30 parts by weight of electrically conductive carbon black.This resin composition exhibits excellent electrical conductivity, flame retardance, heat resistance, mechanical properties and moldability.

Abstract: A porous ceramic body of high structural strength and integrity is disclosed, along with the method of fabricating such, whereby a curable resin and a sinterable ceramic are mixed and then admixed to removable pore formers, then consolidated into a green body, the pore formers removed, and sintered into the porous ceramic body.

Abstract: Aqueous silicone dispersions having a solids content of at least 40% by weight and crosslinkable into flameproofed elastomeric state by elimination of water therefrom, well adopted, e.g., as jointing material for the construction industry, comprise an oil-in-water emulsion (A) of an .alpha.,.omega.-(dihydroxy)polydiorganosiloxane stabilized by an anionic and/or nonionic surfactant, an effective amount of a crosslinking agent (B), a non-siliceous inorganic filler material (C.sub.1), borax hydrate powder (C.sub.2), optionally, a non-siliceous hydrated inorganic filler material (C.sub.3) and, also optionally, a metal curing catalyst (D).

Abstract: The present invention provides a resin composition enhanced in melt tension and remarkably improved in blow moldability without a parison being drawing down during blow molding, while being freed from the tendency to gelation at high viscosity, maintaining stable flowability and capable of effectively producing a blow molded article of comparatively large size having uniform thickness and excellent appearance.A resin composition for blow molding prepared by compounding 100 parts by weight of a resin component composed of:(A) 1 to 99 parts by weight of a thermoplastic polyester resin mainly comprising an aromatic dicarboxylic acid or the ester forming derivative thereof and an aliphatic dihydroxy compound having 2 to 8 carbon atoms and(B) 99 to 1 parts by weight of a thermoplastic polyamide resin with(C) 0.2 to 10 parts by weight of a styrenic copolymer comprising 40 to 97% by weight of styrene, 60 to 3% by weight of a glycidyl ester of an .alpha.,.beta.

Abstract: There is disclosed a thermoplastic resin composition which comprises(a) a polyphenylene ether and(b) a polyamide resin, and(c) 0.01 to 5 parts by weight of an acetal and(d) 0.01 to 5 parts by weight of a Lewis acid based on 100 parts by weight of the above (a) and (b) in total.

Abstract: Advanced epoxy resin compositions are prepared by reacting a composition comprising (1) an aromatic hydroxyl-containing product resulting from reacting a composition comprising (a) at least one diglycidyl ether of (i) an oxyalkylated aromatic diol, or (ii) at least one compound having two hydroxyl groups per molecule in which the hydroxyl groups are attached to an aliphatic or cycloaliphatic carbon atom and which compound is free of aromatic rings; or (iii) a combination of (i) and (ii); and (iv) optionally a diglycidyl ether compound different from (i) and (ii); and (b) at least one compound containing two aromatic hydroxyl groups per molecule; (2) at least one diglycidyl ether of a compound containing two aromatic groups per molecule; (3) optionally, one or more compounds containing two aromatic hydroxyl groups per molecule; and (4) optionally, a monofunctional capping agent. The advanced resins are useful in coating compositions.

Abstract: Incorporation of an encapsulated nucleant made from an encapsulant polymer and a nucleant, wherein the encapsulant polymer is selected from linear low density polyethylene, high density polyethylene, and polypropylene, into polyoxymethylene compositions results in a decrease in the center line porosity of polyoxymethylene extruded stock shape parts, without also reducing the rate of extrusion. The compositions are especially useful for extrusion into stock shape parts, such as rod, slab, sheet, and tube stock, which are used for machined parts (like artificial limbs and complex gears), die cut parts (like washers and gaskets), and control cable inners.

Abstract: The present invention relates to a method of forming a ceramic or ceramic-like coating on a substrate, especially electronic devices, as well as the substrate coated thereby. The method comprises coating said substrate with a solution comprising a solvent, hydrogen silsesquioxane resin and a modifying ceramic oxide precursor selected from the group consisting of tantalum oxide precursors, niobium oxide precursors, vanadium oxide precursors, phosphorous oxide precursors and boron oxide precursors. The solvent is then evaporated to thereby deposit a preceramic coating on the substrate. The preceramic coating is then ceramified by heating the to a temperature of between about 40.degree. C. and about 1000.degree. C. This coating, moreover, may be covered by additional passivation and barrier coatings.

Abstract: The preparation of porous ceramic bodies by sintering certain curable organopolysiloxanes filled with silicon carbide powders. This process is advantageous in that the green bodies have relative high strengths and thus can be easily handled and, if desired, machined before sintering.

Abstract: Electrically conductive polythiopheneamine polymer networks are provided comprising conjugated crosslinks between polythiopheneamine polymer segments of the network. The network can be formed by crosslinking amine functional polythiopheneamine polymers, such as by crosslinking condensation reaction with conjugated polyketone crosslinkers. The amine functional polythiopheneamine polymers can be prepared by polymerization, such as by electropolymerization of amine functional thiophene monomers (the amine functionality generally being protected during polymerization) and, optionally, suitable conjugated copolymerization monomers such as thiophene, pyrrole and/or amine functional pyrrole.

Abstract: A flame-retardant resin composition comprising the following components (A), (B), (C) and (D): (A) 100 parts by weight of a thermoplastic resin comprising 1 a polycarbonate resin, or 2 a polycarbonate resin and a non-polycarbonate resin, (B) from 0.1 to 40 parts by weight of a phosphorus compound, (C) from 0.001 to 40 parts by weight of a boron compound, and (D) from 0.01 to 5 parts by weight of a polyorganosiloxane and/or from 0.001 to 5 parts by weight of a fluorine resin.

Abstract: A boron-containing polyethylene having an average molecular mass of at least 2.5.times.10.sup.6 g/mol as a neutron-absorbing material.

Abstract: The composition of the present invention is composed of finely divided solid refractory material suspended in a nonaqueous liquid slip composition. The nonaqueous liquid slip composition consists essentially of a deflocculent composed of a vinyl chloride and vinyl acetate resin dissolved in an organic solvent. The composition may be slip cast or cold formed into a low density article which is then sintered into a dense product.

Abstract: An engineering plastic composition with excellent flowability, heat stability, and desirable mechanical properties is provided. The composition contains an engineering plastic material and an aliphatic polyester.

Abstract: The material, which is usable for the production of biodegradable articles in film, sheet or fiber form, can be produced by extrusion from a molten mass including a synthetic thermoplastic polymer and a destructured starch to which a boron containing compound, such as boric acid, metaboric acid, borax and derivatives thereof has been added. Articles made of this material have improved transparency, Young's modulus and tear strength.

Abstract: A ceramic-filled thermally-conductive composite for use in microelectronic applications includes a substantially homogeneous mixture of a solidified polymeric material and an adamantine-structured ceramic filler, such as aluminum nitride or boron nitride, wherein the solidified polymeric material is substantially continuous. The solidified polymeric material may be a material containing a predominant amount of a fusible semi-crystalline polyamide having a melting point of greater than about 250.degree. C. or a polybenzocyclobutene.

Abstract: A process for making filled molding powders by preparing a dilute solution of a polymer, making a slurry of a filler in the polymer solution, and then causing the polymer to come out of solution, e.g. by adding a nonsolvent or by solvent evaporation, so that the polymer coats the filler particles.

Abstract: A polyurethane filleting composition which has production of electronic assemblies. The filleting composition is a self-curing polyurethane mixture which has a low dielectric constant, good thermal conductivity, and relatively long working life. The composition is a four part mixture containing:(a) a diisocyanate having the formulaOCN--[CH.sub.2 ]n--NCOwhere n=1 to 6;(b) a polyol having the formula ##STR1## where m=1 to 10; (c) a filler/curing promoter additive; and(d) a viscosity control additive.

Abstract: There is here provided a thermoplastic resin composition which comprises (I) 99 to 1% by weight of an aromatic polyester resin, (II) 1 to 99% by weight of at least one kind of resin selected from the group consisting of a polyphenylene ether resin, a mixture of the polyphenylene ether resin and a styrene polymer, a polycarbonate resin, and a polyarylene sulfide resin, (III) 0.1 to 100 parts by weight, based on 100 parts by weight of the aforesaid resins (I)+(II), of a multi-phase structure thermoplastic resin which is composed of 5 to 95% by weight of an epoxy group-containing olefin copolymer and 95 to 5% by weight of a vinyl polymer or copolymer obtained from at least one kind of vinyl monomer, either of both the components being formed with a dispersion phase having a particle diameter of 0.001 to 10 .mu.m. A method for preparing the above-mentioned thermoplastic resin composition is also provided here.

Abstract: A thermoplastic molding composition was composed ofA: 20-90% by weight of a thermoplastic polyurethane,B: 1-40% by weight of an elastomeric graft copolymer formed fromb.sub.1 : 50-90% by weight of a grafting base comprising an elastomeric polymer which has a glass transition temperature of below -20.degree. C. and is based on butadiene or a C.sub.2 -C.sub.10 -acrylate and, if desired, a crosslinking agent andb.sub.2 : 10-50% by weight of a graft superstratum formed from styrene and acrylonitrile in the ratio of from 85:15 to 60:40 or styrene or methyl methacrylate, andC: 5-75% by weight of a copolymer formed fromc.sub.1 : 55-90% by weight of .alpha.-methylstyrene andc.sub.2 : 10-45% by weight of acrylonitrile or methacrylonitrile or a mixture thereof, andD: up to 50% by weight of a reinforcing filler.

Abstract: This is a thermally conductive adhesive having excellent die shear strength, in film form, and having a weight average molecular weight of about 100,000 to 150,000, prepared from a mixture of a dietherdianhydride, a meta-substituted benzenediamine, a polysiloanediamine, and a thermally conductive filler, that is suitable as a die attach adhesive: it bonds rapidly without the need for curing or baking off-line; does not produce excess stress on the die; requires no refrigeration; provides uniform bond line thickness between the die and paddle; can be used at temperatures that do not oxidize copper lead frames or produce excessive thermal stress; can be reworked; and can exert adequate adhesion during the processes of wire bonding and molding.

Abstract: A corrosion-resistant coating which can be applied directly to a surface as self-priming topcoat comprising an epoxy resin binder and a combination of pigments consisting essentially of an alkaline earth metal phosphosilicate, zinc salts of benzoic acids, and an alkaline earth metal phosphate such as zinc-barium phosphate. In addition, the coating contains up to about 35 parts by weight of a titanium dioxide pigment, up to about 3.0 parts by weight of an oil soluble surface active agent and up to about 50 parts by weight of at least one organic solvent.

Abstract: The action of thermoplastic polymers to whose polymer backbone aliphatic or cycloaliphatic groups are bonded via a group --O--, --O--CO--, --CO--OR.sup.22 --OCO-- or --CO--O--, said aliphatic or cycloaliphatic groups being substituted by Cl, Br and/or iodine in the .alpha.-, .beta.-, .gamma.- or .omega.-position, on an unsubstituted or substituted tetrathio-, tetraseleno- or tetratelluronaphthalene or -tetracene contained in this polymer gives electrically conducting compositions by the formation of charge transfer complexes. These compositions are suitable for the production of antistatic or electrically conducting mouldings, sheets, filaments, fibres, coatings and composites.

Abstract: Corrosion inhibiting properties in surface coating compositions are increased by admixing a sol or gel containing salt with a polymer and usually a surface coating paste stock. A novel surface coating composition containing a polymer and salt homogeneously distributed in the composition is prepared from the sol or gel and has increased corrosion-inhibiting properties compared to a composition without the admixed sol or gel.

Abstract: Preceramic compositions which have particular utility in providing protective ceramic coatings on carbon/carbon composites, graphite, carbon fibers, and other normally oxidizable materials are prepared by dispersing about 0.1-4 parts by weight of silicon boride in one part by weight of a polysilazane in solution in an organic solvent.

Abstract: Thermal spray powders are characterized by the presence of a matrix-forming component, a solid lubricant component and a plastic component. Abradable coatings formed by thermal spraying the powders abrade readily to form abradable seals. The abradable coatings have a metal, metal alloy, or ceramic matrix with discrete inclusions of solid lubricant and plastic. The thermal spray powders may be prepared as mechanically fused agglomerates.

Abstract: Thermoplastic rubber is used as part of a thermally conductive electrically insulating filled elastomer composition. The filler may be any conventional filler such as hexagonal boron nitride or alumina. The thermoplastic rubber may be crosslinked. The filled elastomer can be molded or pressed into desired shapes.

Abstract: The invention provides fibers formed of a blend of metal oxide, such as titanium or zirconium oxide, with etheric phosphazene. The invention optionally contains salt for antistatic fibers. The composition of the invention is formed by preparing solutions of etheric phosphazene and inorganic alkoxides, such as titanium isopropoxide. The solutions are then formed into fibers and cured at room temperature or with moderate heating. Fibers produced can be extensible, tough, hard, flexible, or brittle. They are multicomponent blends of the titaninum or zirconium oxide and phosphazene. The composite may be doped with low lattice energy salts to form conductive fibers.

Abstract: The flame-retardant properties of polymers with an aromatic main chain can be improved by incorporating therein a fluorine compound in combination with a boron compound.

Abstract: A textile composition contains a textile material with a salt suffused therein. The composition is prepared by treating a textile material with a sol or gel composition containing a salt. The sol or gel composition is usually admixed with a polymer and the treated textile material (often carpeting) has an antistatic property.

Abstract: A compatible alloy of a polyester, such as polyethylene terephthalate (PET), and a polycarbonate containing effective amounts of a polyester compatibilization agent and a polycarbonate compatibilization agent does not show any apparent phase separation according to Transmission Electron Microscopy (TEM) micrographs. The PET compatibilization agent is a multiphase polymer desirably with a flexible polymer core and a functional polymer shell. The polycarbonate compatibilization agent is also a multiphase polymer desirably with a flexible polymer core and a functional polymer shell. Optionally, a polymer can be utilized which is non-compatible with the alloy, such as an immiscible polyester, e.g., polybutylene terephthalate (PBT). In other words, an incompatible polyester can be utilized along with a compatible alloy polyester.The alloy is thermoplastic and can contain various fillers as well as various reinforcing fibers such as fiberglass.

Abstract: Thermoplastic materials for the production of ceramic moldings containA) 40-65% by volume of a sinterable inorganic non-metallic powder,B) 35-60% by volume of a mixture ofB1) 70-90% by weight of a polyoxymethylene homo- or copolymer having up to 10 mol % of comonomer units andB2) 10-30% by weight of a polyoxymethylene copolymer with a comonomer content of 20-99 mol %, poly-1,3-dioxolane, poly-1,3-dioxane or poly-1,3-dioxepan, or of a polymer which is homogeneously dissolved or is dispersed with a mean particle size of less than 1 .mu.m in B1) or a mixture thereof,as a binder, andC) 0-5% by volume of a dispersant.

Abstract: This invention relates to a resin composition for scroll compressor parts which comprises(A) about 40 to 70 parts by weight of at least one thermoplastic resin selected from the group consisting of polyphenylene sulfide, polyetheretherketone, polyetherketone, all-aromatic polyester, nylon-4,6, nylon-MXD6, polysulfone, polyarylsulfone, polyethersulfone, polyetherimide, polyamide-imide and polyimide,(B) about 15 to 45 parts by weight of whisker with an average fiber diameter of not more than about 3 .mu.m and a tensile modulus of not less than about 10,000 kgf/mm.sup.2 ;(C) about 10 to 25 parts by weight of heat-resistant fiber with an average fiber diameter of not more than about 30 .mu.m and a tensile modulus of not less than about 6,500 kgf/mm.sup.2 ; and(D) about 5 to 20 parts by weight of a finely divided solid lubricant, the sum total of components (A) to (D) being 100 parts by weight and a method of manufacturing scroll compressor parts characterized in that the above composition is injection molded.

Abstract: Mouldable filled polyethylene compositions containing particulate lignocellulosic fillers are disclosed. The compositions contain 0-89.97% (by weight of the composition) of polyethylene, 0.01-89.99% (by weight of the composition) of grafted polymer, 10-60% (by weight of the composition) of particulate lignocellulosic material and 0.02-20% (by weight of the composition) of boric acid and/or borax. The boric acid and/or borax is added to suppress odor during manufacture and processing of the compositions. The compositions may be formed into moulded articles e.g. containers and the like.