Abstract: Improved methods for coating particulate materials at low shear conditions and preferably below the melting point of the coating material are provided. In one aspect, metallurgical compositions are provided that contain a metal-based powder bound to an alloying powder or powders by way of a low melting polymer or wax binding agent, which is preferably polyethylene. The binding agent is blended with the metal-based and alloying powders at elevated temperatures preferably below the melting point of the binding agent. The bonded metallurgical composition can be used in compaction processes to manufacture compacted parts that can be sintered to impart strength.

Abstract: A rubber composition having improved properties containing a starting rubber (e.g., diene rubber) and a polysiloxane having the following alkoxysilyl group (I) and/or acyloxysilyl group (II) and having an average degree of polymerization of 3 to 10,000: ≡Si—OR1  (I) ≡Si—OCOR2  (II) wherein, R1 is a substituted or unsubstituted monovalent hydrocarbon group having 1 to 18 carbon atoms or an organic group containing an ether bond and R2 is hydrogen or a hydrocarbon group having 1 to 21 carbon atoms. The polysiloxane is impregnated in an inert powder.

Abstract: A process for high speed melt extrusion onto wire conductors of fluoropolymer pigmented with oxide-coated titanium dioxide.

Abstract: Aqueous coating compositions comprise a water-soluble or water-dispersible film-forming polymer, a metallic pigment based on coated metal flakes, an organic nitro compound which is further carboxyl-, carbonyl- and/or hydroxyl-functionalized, and an organic solvent in which the nitro compound is soluble, along with further components customary for aqueous coating compositions.

Abstract: A display media and display apparatus with a substrate, and bichromal beads having an electrolyte and a polymer, wherein the bichromal beads are dispersed or contained in the substrate are set forth.

Abstract: A composition for bonding ligno-cellulosic materials to form shaped products, the composition containing a formaldehyde based thermosetting bonding agent and capsules containing an agent reactive with said bonding agent which is at least one of a resin hardening agent, a flame/fire retardant and a water absorbent, wherein the capsules have walls that are capable of degradation to allow access of the agent to the bonding material, such degradation being at a temperature above the temperature prevailing in the system prior to application of heat in a final compression and heating stage.

Abstract: A raw material for injection molding comprising a metal powder or a ceramic powder, and a binder containing at least two types of resins, obtained by coating or encapsulating the metal powder or ceramic powder particles with a resin insoluble in a predetermined solvent and having a high softening temperature, and subsequently kneading the resultant powder and a resin soluble in the solvent and having a low softening temperature.

Abstract: A reinforced polyolefin article is provided which includes a sized reinforcement material incorporated in the article. The article may be prepared by polymerizing a cyclic olefin monomer in the presence of the sizing agent and a metathesis polymerization catalyst which includes ruthenium or osmium.

Abstract: A mineral containing thermoplastic granule for incorporation in a thermoplastic material to produce a thermoplastic end product, the granule comprising at least 50% by weight of an inorganic particulate material, at least 0.1% by weight of an additive comprising a blowing agent, and the balance comprising a thermoplastic binder.

Abstract: The pH-modified monomer and polymer compositions are useful as biomedical and surgical adhesives, sealants, implants and bioactive agent release carriers or matrices. They comprise a monomer or polymer; and an effective amount of an acidic or basic pH modifier effective to modify the pH of an immediate in vivo environment of the composition to a pH range at which the polymer biodegrades at a different rate than at physiologic pH. The invention also relates to in vivo applications in which surfaces are joined or treated with such pH-modified biocompatible compositions.

Abstract: The present invention relates to an integrated additive composition which contains anti-blocking agents and at least one organic component and is characterized in that the organic component(s) is (are) localized in a concentration of 5 to 65 wt.-%, relative to the total weight of the composition, in the pores of the anti-blocking agent, the volume of the organic component(s) not being greater, however, than the pore volume of the anti-blocking agent. The invention also describes processes for the preparation of this integrated additive composition and its use in polyolefin films and in injection molding.

Abstract: A semiconductor encapsulating epoxy resin composition is provided comprising (A) an epoxy resin, (B) a phenolic resin curing agent, (C) a microencapsulated flame retardant comprising a red phosphorus-base core coated with a thermoplastic resin and/or thermosetting resin, (D) a molybdenum compound, and (E) an inorganic filler. The composition and its cured product have moisture-proof reliability and high flame retardance despite the absence of halogenated epoxy resins and antimony oxide.

Abstract: A thermal stabilizer for halogen-containing resins, comprising a compound of the dolomite series and the zinc salt of an organic acid. The thermal stabilizer, when incorporated in a halogen-containing resin, provides an excellent thermal stabilizing effect for the resin.

Abstract: The invention relates to an additive compositions for rubbers and rubber mixtures which contain at least one solid, powdery substance and at least one dispersant, the at least one additive substance being coated with the at least one dispersant. The compositions are present as granulate and are prepared by means of a multi-stage fluidized-bed process. The invention also relates to the use of the additive compositions in the preparation of rubber and products obtained using them.

Abstract: A free-flowing granular polymer composition suitable for incorporation into a particulate detergent composition comprises a defined dye-transfer-inhibiting polymer, preferably poly(4-vinylpyridine) sodium carboxymethyl betaine chloride, and a silica-based carrier material. A preferred carrier material is an acidic silica. The silica-based carrier material may optionally comprise a solid acid, for example, polyacrylic acid or phthalic acid.

Abstract: The present invention relates to a coloured porous material comprising in its pores an effectively colouring amount of an organic pigment which is obtainable by fragmenting a meltable or solvent-soluble pigment precursor, and to a process for its preparation. The present invention also relates to the use of the instant coloured porous material powders as pigments for high molecular weight organic materials.

Abstract: Novel modifying agents contain a sharply-melting crystalline polymer ingredient, preferably a side chain crystalline (SCC) ingredient, and an active chemical ingredient. Such modifying agents, especially when in the form of particles, can be placed in contact with a matrix, will not modify the matrix below the crystalline melting point Tp, but will rapidly modify the matrix above Tp. The active chemical ingredient can react with the matrix, catalyze a reaction of the matrix, or inhibit a reaction of the matrix. Particularly useful compositions are polymer precursors which are storage-stable at low temperatures but which are rapidly converted to crosslinked resins when heated to temperatures above Tp, optionally in the presence of light.

Abstract: A heat absorbing coating having a plurality of micro-capsules each being an encapsulant shell and a heat absorbing material within the shell, and a carrier adherable to a substrate and throughout which the micro-capsules are dispersed. The heat absorbing material is preferably a phase change material and can be non-limitedly chosen from the group consisting of polyethylene, polypropylene, polywax, and combinations thereof. Shell material can be a metal such as copper, for example, or a polymer. The carrier can be a sprayable polymer mix which provides significant efficacy in uniform application to a substrate. An inventive substrate structure, such as an aircraft structure for example, has thereon the above-defined coating in an amount sufficient to absorb a sufficient amount of heat from the substrate to substantially inhibit thermal erosion in normal operating environments.

Abstract: Polymer compositions comprising polysiloxanes and metal coated boron phosphates are described and they unexpectedly display flame retardant properties and hydrolytic stability without creating environmental hazards.

Abstract: An easily shaped evacuated porous stonelike body is impregnated in a consistent manner with a fluid polymer forming composition or molten polymer composition and solidified to form a polymeric matrix stone product bearing a striking resemblance to a natural rock in texture, structure, and formation exhibited throughout any substantial cross section. The polymeric composition is decoratively enhanced by the labyrinthic skeletal framework of the porous body and the skeletal framework is structurally enhanced by the polymeric composition. The method of forming the product closely duplicates the natural formation of most of the rocks exposed at the surface of the earth. Therefore, a wide range of stonelike textures are now available in a dimensional stock product of pre-determined size and shape. A wide range of chemical and physical properties are also possible depending upon the specific combination of porous bodies and solidified polymeric compositions.

Abstract: The present invention provides a method for making a non-polar suspension of chargeable pigment particles. A suspension of pigment particles is formed in a non-polar solvent, wherein the pigment particles are inherently ionic or are chargeable, and possess surface anchoring groups on the surface of the pigment particles. The pigment particles are contacted with a polymeric resin comprising a hydrophobic region that is soluble or solvatable in the non-polar solvent and a reactive group that reacts with the surface-anchoring groups on the surface of the pigment particle. The resultant coated pigment particles are stable in non-polar suspensions. In certain embodiments of the present invention, a covalent bond is formed between the pigment and the surface modifying polymer.

Abstract: A nanocomposite structure comprising a nanostructured filler or carrier intimately mixed with a matrix, and methods of making such a structure. The nanostructured filler has a domain size sufficiently small to alter an electrical, magnetic, optical, electrochemical, chemical, thermal, biomedical, or tribological property of either filler or composite by at least 20%.

Abstract: Emulsion delivery systems for applying anti-stick additives to polymer particles, provide free-flowing particles of polymers or polymer blends, that without the anti-stick additives tend to agglomerate. The agglomeration presents storage and handling difficulties. The anti-stick additives are selected from the group consisting of primary amides, secondary amides, ethylene bisamides, waxes, talc and silica.

Abstract: A process for homogeneously dispersing at least one reactant in a fluid matrix, characterized in that capsules of a first type containing the reactant(s) are prepared with a first encapsulation product and capsules of a second type containing the fluid matrix are prepared with a second encapsulation product which is compatible with the first, these two types of capsules bearing electric charges of opposite polarity, the capsules of the two types are combined by electric attraction and the first and second encapsulation products are removed so as to obtain a composite material consisting of the fluid matrix containing the reactant(s) in homogeneous dispersion form, and products obtained according to this process.

Abstract: An epoxy resin composition for sealing semiconductors which does not contain any halogen compounds or antimony compounds, has an excellent flame retarding property and shows excellent high temperatures storage life and reliability in a humid condition, and a semiconductor device are provided. The epoxy resin composition for sealing semiconductors comprises (A) an epoxy resin, (B) a phenol resin curing agents, (C) a curing accelerator, (D) an inorganic filler and (E) zinc molybdate as the essential components and the semiconductor device is sealed with this epoxy resin composition.

Abstract: Fiber-reinforced composites prepared from a depolymerizable and repolymerizable polymer have the processing advantages of a thermoset without being brittle. Impregnation of polymer into the fiber bundle can be achieved with ease, while still producing a composite with excellent physical properties and high damage tolerance.

Abstract: A granule containing a high proportion of a mineral filler and a colorant pigment system in a thermoplastic binder, for blending with an end product thermoplastic in which the mineral filler and the colorant pigment is to be dispersed. The granule comprises 85% to 92% by weight of the granule of mineral particles, which is coated with one or more fatty acids having a carbon chain length of from 12 to 20 carbon atoms and the colorant pigment. The colorant pigment may be inorganic or organic or a mixture thereof. The balance of the granule by weight comprises a thermoplastic polymeric binder. The particle size distribution of both the mineral and the colorant particles is in accordance with the optimum particle packing equation to optimize packing of the particles in the granule. The ratio of mineral to colorant pigment to binder may be about 75:15:10 or about 0.1:89.9:10. The invention includes a granule with only a colorant pigment system.

Abstract: The pH-modified monomer and polymer compositions are useful as biomedical and surgical adhesives, sealants, implants and bioactive agent release carriers or matrices. They comprise a monomer or polymer; and an effective amount of an acidic or basic pH modifier effective to modify the pH of an immediate in vivo environment of the composition to a pH range at which the polymer biodegrades at a different rate than at physiologic pH. The invention also relates to in vivo applications in which surfaces are joined or treated with such pH-modified biocompatible compositions.

Abstract: A polyvinyl alcohol hydrogel has a surface layer comprising a net-like structure formed by entanglement of fiber-like articles having a diameter of 0.1 to 50 .mu.m. This gel has a large surface area and high capability of adhering microorganisms and permeating liquid, thereby exhibiting excellent purifying function. Processes for producing the above hydrogel are also provided.

Abstract: Titanium dioxide powder with a greatly decreased volatile moisture content can be obtained by surface treating with titanium dioxide powder with addition of a calcium salt and/or a silane coupling agent, or by a surface treatment by addition of an aluminate together with these surface treatments. A masterbatch containing this titanium dioxide powder is of high quality, having no defect due to foam generation upon high temperature processing.

Abstract: A rubber composition having improved properties containing a starting rubber (e.g., diene rubber) and a compounding agent consisting of a silane coupling agent and a carbon black, calcium carbonate or stearic acid powder impregnated with a polysiloxane having the following alkoxysilyl group (I) and/or acyloxysilyl group (II) and having an average degree of polymerization of 3 to 10,000:.tbd.Si--OR.sup.1 (I).tbd.Si--OCOR.sup.2 (II)wherein, R.sup.1 is a substituted or unsubstituted monovalent hydrocarbon group having 1 to 18 carbon atoms or an organic group containing an ether bond and R.sup.2 is hydrogen or a hydrocarbon group having 1 to 21 carbon atoms.

Abstract: A conductive paste structure is is disclosed which is a combination of a polymeric material and particles, e.g. Cu, having a thermally conductive coating, e.g. Sn. Heat is applied to fuse the coating of adjacent particles. The polymeric material is a thermoplastic. The conductive paste structure is disposed between two thermally conductive surfaces, e.g.chip and substrate pads, to provide thermal interconnection and adhesion between their pads.

Abstract: The stability of colloidal metal oxide particles which have been encapsulated in a polymer resin is extended by the addition of a water-soluble polyacrylamide polymer.

Abstract: The present invention is a hot melt adhesive composition comprising at least one ingredient present in an encapsulated form. The encapsulated ingredient may be any known hot melt adhesive formulation ingredient as well as any hot melt adhesive additive such as antioxidants and fragrances for which there is a desirable change in adhesive properties by isolating such ingredient for a duration of time. The encapsulated ingredient is released from the shell by means of pressure, temperature, diffusion, pH, light, radiation, ultrasound, and combinations thereof. Hot melt adhesive compositions comprising at least one encapsulated ingredient are useful for a variety of novel products including self-supported friction glue sticks, non-tacky pelletized pressure sensitive adhesives, cohesive adhesive systems, hot melt adhesive compositions exhibiting improved thermal stability and odor, as well as for a variety of other adhesive applications.

Abstract: A novel high-porosity adsorbent material for selective adsorption of fluoride ions, arsenic ions and phosphate ions as well as a method for the preparation thereof are disclosed. The adsorbent material consists of a porous carrier material such as crosslinked polyacrylate resin beads and a crystalline hydrous zirconium oxide impregnating the pores of the carrier in the monoclinic or cubic crystal form.

Abstract: Vinyl halide resin compositions containing a metal compound stabilizer and coated acid absorber particles, where the coating consists of a tin-based coating or a complex calcium/zinc/strontium phosphate-based coating, are used to confer heat stability to such compositions. Use of the costabilizers of this invention results in economic advantages and material cost savings.

Abstract: The present invention relates to a composition comprising platelet particles treated with at least one polyalkoxylated ammonium salt comprising at least one polyalkoxylated group consisting of greater than 5 repeating alkyl oxide groups. The treated particles of the present invention display particularly good dispersion when incorporated into various polyester compositions at concentrations up to about 25 weight %. Also disclosed is a process incorporating said treated platelet particles into a polyester and for forming said treated platelet particles.

Abstract: There are disclosed a metal-organic polymer composite structure, particularly a porous metal-organic polymer composite structure, for use as functional materials such as catalysts, and a method for producing the structure. The composite structure is composed of a microphase-separated structure from a block copolymer in which a metalphilic polymer chain and a metalphobic polymer chain are bonded together at each end, and ultrafine metal particles are contained in the metalphilic polymer phase of the microphase-separated structure.

Abstract: A method for making coated pigment particles by forming a suspension of the desired pigment particles in a medium that also comprises a polymer characterized by having hydrophobic moieties on the polymer backbone and ionic moieties that are present on, or can be formed on a polymer side chain or at the polymer terminals; allowing the suspension of pigment particles to contact said polymer at a temperature above the softening point of the polymer, allowing the resultant suspension to cool to a temperature below the solidification temperature for the polymer while maintaining the pigment particles in suspension, and, if required, forming the ionic moieties.

Abstract: A reinforced polyolefin article is provided which includes a sized reinforcement material incorporated in the article. The article may be prepared by polymerizing a cyclic olefin monomer in the presence of the sizing agent and a metathesis polymerization catalyst which includes ruthenium or osmium.

Abstract: An inkjet recording ink having excellent water resistance and having excellent ejection stability through a nozzle, which ink is obtained by dispersing colorant particles in a water-based liquid, the colorant particles being a product formed by coating each of resin particles having an average particle diameter of 50 to 300 nm with an organic pigment.

Abstract: The present invention relates to an expanded resin bead comprising:a core which comprises a crystalline thermoplastic resin and is in an expanded state, anda coat which comprises an ethylene-based polymer which is lower in melting point than said thermoplastic resin or shows substantially no melting point, and which coat is in a substantially unexpanded state.

Abstract: Novel microcapsules are characterized in that the walls thereof consist of reaction products of crosslinking agents with iminooxadiazinedione isocyanates or the walls thereof contain such reaction products. A process for the production of such microcapsules has also been found, as have carbonless copying papers containing such microcapsules.

Abstract: A process for producing surface-treated carbon black for rubber reinforcement comprising: a surface treatment reaction step of dispersing carbon black for rubber reinforcement in water, followed by reacting a metal silicate and an acid in the dispersion to thereby deposit amorphous silica on the surface of the carbon black; and a subsequent aging step of bringing the pH of the dispersion to not more than 7.

Abstract: A coating material having reflective properties in two wavelength ranges and absorbent properties in a third wavelength range. The coating material comprises a binder, flaky first particles, and second particles. The binder has a transparency greater than 40% in the wavelength ranges of from 0.4 to 0.7 .mu.m and from 10 to 50 .mu.m and a refractive index n in the wavelength ranges less than 2.0. The coating material comprises from 20 to 30 percent by weight, based on the wet weight of the coating material, of the flaky first particles. The flaky first particles have a thickness less than 10 .mu.m and a surface area (length.times.width) greater than 100 .mu.m.sup.2 and a reflectivity R greater than 40% in the wavelength range of from 10 to 50 .mu.m. The second particles at least partially overlap the first particles. The second particles have a transparency greater than 40% only in the wavelength ranges of from 0.4 to 0.7 .mu.m and from 10 to 50 .mu.

Abstract: Methods and compositions for encapsulated polymeric gels swollen with nonaqueous reactive materials are provided. The methods include gel synthesis, swelling of a gel precursor with a first nonaqueous reactive material, and encapsulation of the swollen gel with a second nonaqueous reactive material. Gels precursors may be synthesized from crosslinking polymers, or alternatively, may be formed by crosslinking and polymerizing a monomer starting material. An accelerator may be utilized to facilitate swelling of the gel precursor with the first nonaqueous reactive material. Foams and composites may also be swollen with the first nonaqueous reactive material. The swollen gel is then contacted with a second nonaqueous reactive material such that an encapsulation layer is formed thereby. The encapsulated gels may be stored for subsequent use.

Abstract: Process for the manufacture of a mold for making products from fibrous materials by performing a combination of steps of(1) applying a thin layer of resin on a supporting stage(2) selectively irradiating the thin layer of resin as to cure a selected part of said resin(3) applying a further thin layer of resin, and repeating steps (2) and (3) as to obtain a three dimensional shape of a plurality of cured layers, optionally combined with either one of the steps of washing and post-curing the three dimensional shape, as to obtain the mold, wherein the resin ocmpositiona is formulated from constituents comprises at least one photoreaction monomer at least one photoinitiator at least one filler.

Abstract: Modified mineral fillers, derived from either a coarse particle kaolin clay or a coarse particle ATH, having excellent utility in thermoset polymers as low paste viscosity fillers are disclosed. The method of treatment involves the use of specific weight ratio combinations of a silane and a long chain aliphatic alcohol. The treatment of clay can also involve the auxiliary use of a surfactant in small amounts, which is utilized to emulsify the silane and aliphatic alcohol treatment components in water either individually or as a co-emulsion blend prior to their addition to the clay. The surfactant, which is preferably a nonionic surfactant having a HLB value of 12-18, aides in uniformly treating all the clay particle surfaces with the silane/alcohol treatment combination. Coarse particle clays having general utility in the invention are those having an average Stokes equivalent particle diameter of at least 3.

Abstract: A flame retardant composition comprising coated particles, said particles having a core comprising melamine phosphate, melamine polyphosphate, melamine pyrophosphate, or mixtures thereof, said core having at least one coating comprising an organo silane, ester, polyol, dianhydride, dicarboxylic acid, melamine formaldehyde, or mixtures thereof; a polymer composition containing said flame retardant; a polymer composition containing a flame retardant comprising melamine phosphate, melamine polyphosphate, melamine pyrophosphate or mixtures thereof, and dicarboxylic acid, dianhydride, or mixtures thereof; and a process for preparation of said polymer compositions by increasing extruder throughput are disclosed.

Abstract: A halogen-free flame retardant epoxy resin composition containing (A) a bisphenol A type epoxy resin, (B) a curing agent, (C) red phosphorus particles each of which is covered with a covering layer, at least the outermost layer of which is formed of a resin, and (D) an inorganic filler.