Abstract: The invention relates to a thermoplastic resin with improved impact strength comprising a) a thermoplastic polyether sulfone resin and b) glass fibers treated with a polyolefin wax. The polyethersulfone resin glass blend has high modulus and improved impact strength.

Abstract: An aqueous dispersion, preferably a latex, of a polar group modified polyphenylene ether or a polar group modified block copolymer of a vinly aromatic monomer and a conjugated diene, said dispersion having a mean, volume average particle size dispersed phase of less than 2.0 &mgr;m is disclosed. The latex is particularly suited for use in the formation of a coating on an inorganic filler for use in formation of thermoplastic resin blends or composites.

Abstract: Plastic lumber having sufficient stiffness and strength to allow its use in structural and load-bearing applications. The plastic lumber is composed of a thermoplastic polymer, a thermosetting polymer cured with reinforcing fibers and, preferably, a coupling agent and foaming or blowing agent. As a preferred embodiment, the thermosetting polymer and reinforcing fibers are sourced from recycled materials, specifically, sheet molding compounds and bulk molding compounds.

Abstract: The invention relates to a thermoplastic resin with improved impact strength comprising a) a thermoplastic polyether sulfone resin and b) glass fibers treated with a polyolefin wax. The polyethersulfone resin glass blend has high modulus and improved impact strength.

Abstract: The present invention relates to an optical fiber positioning member, such as a ferrule, used for optically coupling optical fibers to each other. The object of the present invention is to provide an optical fiber positioning member having practically sufficient mechanical strength and long-term durability, while maintaining high dimensional precision and dimensional stability. The optical fiber positioning member of the present invention comprises a resin composition containing a polyphenylene sulfide resin at a ratio in the range of 15% to 35% by weight, silica particles at a ratio in the range of 45% to 65% by weight, and silicate whiskers at a ratio in the range of 26% to 35% by weight, the resin composition containing the silica particles and the silicate whiskers at a ratio in the range of 65% to 85% by weight.

Abstract: The invention relates to spherical or approximately spherical ionomer particles, comprising an inner area and an outer area which contains silicon ions. The cations of said outer area comprise a) at least one element which can occupy lattice sites of the silicon in silicate compounds, producing a negative excess of charge and b) at least one element which is selected from the elements of the first and second main groups and those that can appear in a divalent form and which can compensate for the negative excess of charge. Suitable methods for producing the inventive particles are all those methods for producing spherical or approximately spherical particles from a suspension dispersion, emulsion or similar and separating them from the surrounding solvent. Aerosol methods and especially, spray drying of suitable solutions, gels, sols or dispersions/suspensions can also be used.

Abstract: A styrenic thermoplastic resin composite is disclosed which contains (A) about 50 to 95 parts by weight of a styrene-containing copolymer produced by polymerization of (a1) about 50 to 95 % by weight of styrene, &agr;-methylstyrene, halogen- or alkyl-substituted styrene, or a mixture thereof and (a2) about 5 to 50 % by weight of acrylonitrile, methacrylonitrile, C1-8 methacrylic acid alkyl ester, C1-8 acrylic acid alkyl ester, maleic acid anhydride, C1-4 alkyl or phenyl N-substituted maleimide or a mixture thereof and (B) about 5 to 50 parts by weight of glass fibers and (C) about 0.01 to 5.0 parts by weight of an aminosilane coupling agent.

Abstract: The present invention relates to a composite made by the process of melt mixing (a) a polymer having at least one isocyanate reactive group, wherein the polymer is from 30 to 90% by weight of the composite; (b) a thermoplastic polyurethane at from 0.1 to less than 10% by weight of the composite; and (c) a reinforcing fiber at from 9.9 to 60% by weight of the composite, wherein the sum of the weight percentages of components (a)-(c) is equal to 100%, wherein the polymer (a) is not a polyamide. The invention further relates to a composite prepared by the process of melt mixing (a) a polymer having at least one isocyanate reactive group, wherein the polymer is from 25 to 90% by weight of the composite; (b) a thermoplastic polyurethane at from 0.1 to 10% by weight of the composite; (c) a reinforcing fiber at from 9.8 to 60% by weight of the composite, and (d) an epoxy compound at from 0.1 to 5% by weight of the composite, wherein the sum of the weight percentages of components (a)-(d) is equal to 100%.

Abstract: Dental material based on polymerizable (for example ethylenically unsaturated) monomers, epoxides, ormocers, liquid crystal monomers, oxethanes, spiro-orthoesters or spiro-carbonates as binders, a catalyst for cold, hot and/or photo-polymerization, and fillers, and a process for its preparation. Porous glass ceramics, a process for their preparation and uses thereof are also described. Dental materials according to the invention are suitable as alternative materials to the use of amalgam fillings.

Abstract: Provided is a liquid crystal polyester resin composition prepared by compounding glass fiber with a liquid crystal polyester resin, wherein said glass fiber has been surface-treated with a thermosetting resin and the ignition loss of the surface-treated glass fiber is from 0.05 to 0.4% by weight. The molded article obtained by using the composition of the present invention have excellent mechanical property and heat-resistance, particularly, solder heat-resistance, and are extremely useful as materials for which heat-resistance is required such as electric and electronic parts.

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 improved polyurethane derived resin for casting, pultrusion and lamination purposes particularly fibreglass lamination purposes. The resin is produced from the reaction of an isocyanate compound with an hydroxylated acrylic and a polyol. Photoinitators may be included in the resin to allow effective curing under ultra violet light.

Abstract: The invention relates to glass mats and their method of manufacture. In particular, the invention relates to a wet-laid method of making a glass mat and the mats formed by this method. The method includes combining a dispersant, water, glass fiber bundles, and a charged viscosity modifier to form a slurry, adding an oppositely charged viscosity modifier to the slurry, and removing the water from the slurry to form a wet glass mat. The present invention enables improved control of fiber dispersion and subsequent bundling of the fibers to form, for example, bundled glass mats with high porosity and a uniform weight. Mats produced by the present invention may be formed into a variety of products, such as in glass fiber paper, roofing shingles, and composite articles.

Abstract: The present invention relates to laser-markable plastics of which a feature is that they comprise as dopant anthracene- or pentaerythritol-coated effect pigments or a mixture comprising one or more effect pigments and anthracene and/or pentaerythritol.

Abstract: A method for reducing the reaction with metal surfaces of a coupled, filled polyolefin comprising the step of including in the formulation of said coupled, filled polyolefin from about 0.01 to about 1.0 weight percent of an organomodified polysiloxane.

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 filler material comprising a fibrous material and one or more forms of surface-modifying particles for use in dental composites and dental restorations. The surface-modifying particles are bonded to the fibrous material to increase the surface area of the fibrous material and improve the bonding properties of the fibrous material to enable it to better bond to a resin matrix material in a dental composite. In accordance with the present invention, the fibrous material possesses a lower melting temperature than the surface-modifying particles. The surface-modifying particles and the fibrous material are heated to a temperature below the softening temperature of the fibrous material but at a temperature and time sufficient to soften the surface of the fibrous material in order to bond the surface-modifying particles thereto.

Abstract: A silane treated high purity chopped quartz fiber reinforced dental composite material having increased viscosity for improved handling ability, reduction in porosity, elimination of edge-void defects and improved reestablishment of interproximal contacts. The fiber ductility specifically permits bending and confirmation within small geometrical boundaries to approximate continuous fiber strengths without incurring excessive breakage or voids.

Abstract: This invention is directed to the preparation of alloy articles consisting essentially of 65 wt. % or more glass and high temperature organic thermoplastic or thermosetting polymers having working temperatures which are compatible with that of the glass and/or the precursor glass for the glass-ceramic. The glass and polymer are combined at the working temperature to form an intimate mixture; i.e., the glass and polymer are in a sufficiently fluid state to be blended together to yield a body exhibiting an essentially uniform, fine-grained microstructure wherein, desirably, there is at least partial miscibility and/or a reaction between the glass and the polymer to promote adhesion and bonding therebetween. A body is shaped from the mixture and cooled to room temperature.

Abstract: Curable compositions used in circuit boards, structural composite, encapsulating resins, and the like, comprise at least one compound selected from the group consisting of cyanate esters and cyanate ester prepolymers, a flame retardant which is substantially toluene soluble and substantially free of hydroxy residues in the cured state, and a curing catalyst.

Abstract: Unvulcanized rubber mixture includes at least one rubber, aggregate, and at least one filler, wherein a surface of the at least one filler has been modified with a stimuli-sensitive substance. A filler for unvulcanized rubber mixtures includes a surface which has been modified with a stimuli-sensitive substance. A process for making an unvulcanized rubber mixture including at least one rubber, aggregate, and at least one filler, wherein a surface of the at least one filler has been modified with a stimuli-sensitive substance. The process includes coating a surface of at least one filler with a stimuli-sensitive substance to form at least one coated filler, and mixing the at least one coated filler with unvulcanized rubber and aggregate. A rubber product formed from an unvulcanized rubber mixture includes at least one rubber, aggregate, and at least one filler, wherein a surface of the at least one filler has been modified with a stimuli-sensitive substance.

Abstract: The present invention provides a resin additive obtained by subjecting inorganic particles of silica or alumina to surface treatment with tannic acid and further subjecting them to surface treatment with a coupling agent, or subjecting inorganic particles to surface treatment with tannic acid and then subjecting them to surface treatment with a phenone compound or saccharides, followed by further subjecting them to surface treatment with a coupling agent. The above resin additive has an effect to provide a thermoplastic resin with heat stability in heating and melting the resin and prevent a reduction in the IZOT impact strength.

Abstract: The invention provides an insulating paste, comprising: an organic vehicle containing an organic binder, a photo-polymerization initiator and a photosetting monomer; and a silicate glass powder having a softening point in a range of about 700° C. to 1,050° C. and having an average particle size in a range of about 0.1 to 5.0 &mgr;m, said silicate glass powder being dispersed into said organic vehicle. Preferably, the silicate glass powder of the above insulating paste comprises a composition represented by xSiO2—yB203—zK2O where x+y+z is 100 parts by weight and the values z, y and z are on lines or within a region enclosed by lines passing through four points A(65, 35, 0), B(65, 20, 15), C(85, 0, 15) and D(85, 15, 0) on a ternary diagram thereof.

Abstract: Physical properties of polymer resins, particularly amorphous resins such as ABS or SAN copolymers, are markedly improved by dispersing therein a filler-reinforced engineering thermoplastic polyurethane.

Abstract: As an article of manufacture, particulate composites containing, in combination: particles of inorganic material, a component for conferring on the composites the capability of floating in a medium including one or more substance capable of forming a binder matrix, a component for conferring on the composites the capability of adherence to the binder matrix, and a component for conferring on the composites the capability of adherence of the flotation conferring to the inorganic material; their production; and their use in a binder matrix.

Abstract: Provided is a silica base particle having an average particle diameter of 0.01 to 10 .mu.m, wherein carboxylic esters are present on the surface of the above particle in a proportion falling in a range of 0.05 to 10% by weight based on the weight of the above particle. A polyester film containing the above silica base particles shows an excellent lubricant property and scratch resistance.

Abstract: The present invention relates to a glass fiber binding composition having an effective binding amount of a furan resin, an effective emulsifying amount of an emulsifier agent, and sufficient amount of water to result in a binding composition having from 0.5 to 80% N.V. The invention further pertains to a process of binding glass fibers at junctions of the fibers comprising the steps of providing glass fibers, applying an effect binding amount of an emulsified glass fiber binding composition to the junctions of the glass fibers, and curing the binder at the junctions of the glass fibers. Finally, the invention also discloses a glass fiber composition comprising a plurality of glass fibers having a plurality of junctions where two or more fibers meet, and an effective binding amount of an emulsified glass fiber binding composition applied to a portion of the junctions of the glass fibers.

Abstract: A thermoplastic resin composition is provided comprising a polycarbonate resin, polyester resin, and glass fibers which have been treated with polyolefin wax and optionally a functionalized silane. The nature of the coating on the glass fibers provides the composition with improved impact strength over bonding glass. The composition is useful as a molding material.

Abstract: The present invention relates to a composite made by the process of melt mixing (a) a polymer having at least one isocyanate reactive group, wherein the polymer is from 30 to 90% by weight of the composite; (b) a thermoplastic polyurethane at from 0.1 to less than 10% by weight of the composite; and (c) a reinforcing fiber at from 9.9 to 60% by weight of the composite, wherein the sum of the weight percentages of components (a)-(c) is equal to 100%, wherein the polymer (a) is not a polyamide. The invention further relates to a composite prepared by the process of melt mixing (a) a polymer having at least one isocyanate reactive group, wherein the polymer is from 25 to 90% by weight of the composite; (b) a thermoplastic polyurethane at from 0.1 to 10% by weight of the composite; (c) a reinforcing fiber at from 9.8 to 60% by weight of the composite, and (d) an epoxy compound at from 0.1 to 5% by weight of the composite, wherein the sum of the weight percentages of components (a)-(d) is equal to 100%.

Abstract: A high solubility size composition is provided which may be applied to glass fibers useful for reinforcing polymeric materials. The size composition includes: a first film former comprising a polyether-based or polyester-based thermoplastic polyurethane derived from a saturated, non-crosslinkable polyether or polyester; a second film former comprising at least one ingredient selected from i) a vinyl acetate glycidyl methacrylate copolymer and ii) a mixture of a vinyl acetate glycidyl methacrylate copolymer and a vinyl acetate homopolymer; a silane coupling agent; and water. Using glass fibers coated with the high solubility size composition allows the advantageous production of low-pigmented or non-pigmented molded parts having enhanced surface appearance and color uniformity.

Abstract: The present invention provides an electrically conductive sheet molding compound composition adapted for electrostatic painting comprising a resin mixture including about 20 to about 60% by weight of thermoplastic resin based on the total weight of said resin mixture, the thermoplastic resin being selected from the group consisting of styrene-butadiene rubber, polystyrene, saturated polyester resin, and mixtures thereof; fibrous reinforcing material; and conductive material. The conductive material is added to the sheet molding compound composition in a sufficient quantity to render an article molded with said composition with structural integrity and electrically conductive enough to be electrostatically painted.

Abstract: A crosslinked polysiloxane dispersion comprising a siloxane polymer, polymer mixture, or polymer/solvent mixture, capable of crosslinking via condensation, addition or free radical reactions, and having a viscosity of greater than 5000 mPa.s but less than 500,000 mPa.s, if required, 0.1 to 10 weight parts of a crosslinking agent, and, if required, depending on the nature of the catalyst and silicon cure system, 0.000001 to 10 weight parts of a catalyst, 0.5 to 10 weight parts of a surfactant or surfactant mixture, and 0.5 to 25 weight parts water per 100 weight parts siloxane polymer. Optionally, adhesion promoters, pigments, reinforcing or non-reinforcing fillers, silicone resins, stabilizers, freeze/thaw additives, etc. may also be added to the dispersion.

Abstract: A glass-fiber-reinforced polypropylene resin composition is provided having:(A) at least one polypropylene resin,(B) resin-coated glass fiber obtained by previous coating glass fiber with a thermoplastic resin, and(C) glass fiber, whereinthe total content of the resins in the components (A) and (B), respectively, being 65 to 95% by weight based on the total weight of the components (A), (B) and (C),the total content (G) of the glass fibers in the components (B) and (C) being 5 to 35% by weight based on the total weight of the components (A), (B) and (C), andthe melt flow rate M (g/10 min) of the polypropylene resin as component (A) and the above-mentioned total glass fiber content G (% by weight) satisfies the relationship:M<1000/G.The reinforced polypropylene resin composition provides a resin molded article having only small protuberances of welds, and a wheel cover having an excellent appearance quality and mechanical properties.

Abstract: A method of preparing an inorganic particulate material suitable for incorporation in a composition comprising a hydrophobic polymeric material includes the steps of (a) processing an aqueous suspension of an inorganic particulate material in the presence of a water soluble dispersing agent; (b) adding a surfactant to the particulate material; and (c) drying the particulate material. The inorganic particulate material to which the surfactant has been added may be further treated by addition thereto of a further surface treatment agent which is a hydrophobising surface treatment agent, eg. a carboxylic acid or salt thereof. The surfactant may be a non-ionic surfactant and may be added to the particulate material whilst in the form of a dispersed aqueous suspension. The further surface treatment agent may be added to the particulate material during or after the drying step (c).

Abstract: A nonstick coating compositions for mold surfaces is disclosed which coatings have superior release properties and impart a matte finish to the molded article and maintain these performance characteristics over protracted periods of use. The disclosed coating composition comprises a filled fluoropolymer and polymer binder, where the filled fluoropolymer comprises an inorganic filler particle which is wholly or partially encapsulated by a fluoropolymer powder which composition when applied to a mold surface produces a surface profile with an average roughness Ra of 1 to 15 microns after spraying and curing.

Abstract: A composition useful as a restorative material includes a curable matrix with whiskers which preferably have a silicon dioxide containing coating thereon that are then silanized and may also include optional particulate filler of the type which may release fluorides. The polymeric matrix bonds more tightly to the whiskers due to the coating of silicon dioxide on the surface of the whiskers and the coaction between said silicon dioxide and the silane compound. Particles adhered to the whisker also enhance the mechanical properties by virtue of the whisker's surface being thereby roughened. A method of manufacture is also disclosed.

Abstract: Porous silicon dioxide glass is proposed as an inorganic filler for polymerizable materials, which has a particle size of 0.5-50 micrometers, a pore size of 20-120 nanometers, a pore volume of 200-1000 mm.sup.3 /g and a BET surface area of 10-100 m.sup.2 /g. The polymer products containing the filler are characterized by a very good resistance to abrasion.

Abstract: A reinforced polyester molding composition which, based on the weight of the total composition, comprises a polyester resin and glass fibers, wherein said glass fibers have a bimodal cross sectional area wherein one fiber type is selected to improve impact strength and the other fiber type is selected to improve warpage.

Abstract: A vinyl chloride resin composition comprising a vinyl chloride polymer and glass fibers coated with a resin obtained by melting a component comprising the following (a) to (c): (a) a polymer miscible with the vinyl chloride polymer, (b) a crystalline polymer immiscible with the vinyl chloride polymer, and (c) a peroxide; a vinyl chloride resin composition comprising a vinyl chloride polymer and glass fibers coated with a copolymer (e) resin having a polymer chain immiscible with the vinyl chloride polymer and a polymer chain miscible with the vinyl chloride polymer; a vinyl chloride resin composition comprising a vinyl chloride polymer, the copolymer (e) and glass fibers coated with a resin miscible with the vinyl chloride polymer.

Abstract: In a casting composition comprising a curable syrup which contains a liquid monomer and polymer components optionally dissolved therein, and an inorganic filler which includes a quartz sand product, in order to simplify the production of white molded articles, it is proposed that a product, the individual grain of which consists in the core essentially of quartz and at the surface essentially of .alpha.-cristobalite (low-temperature modification) be selected as quartz sand product.

Abstract: A high solubility size composition is provided which may be applied to glass fibers useful for reinforcing polymeric materials. The size composition includes: a first film former comprising a polyester-based thermoplastic polyurethane derived from a saturated, non-crosslinkable polyester; a second film former comprising at least one ingredient selected from i) a vinyl acetate glycidyl methacrylate copolymer and ii) a mixture of a vinyl acetate glycidyl methacrylate copolymer and a vinyl acetate homopolymer; a silane coupling agent; and water. Using glass fibers coated with the high solubility size composition allows the advantageous production of low-pigmented or non-pigmented molded parts having enhanced surface appearance and color uniformity.

Abstract: A composite having enhanced flame retardant behavior includes a polymer and glass fibers coated with fumed silica. The composite can be based on a wide variety of polymers such as polybutylene and polyethylene terephthalates, polycarbonates, polyethylenes, polypropylenes and nylons. The glass fibers are also preferably coated with fibrillar polytetrafluoroethylene.

Abstract: Furfuryl alcohol-formaldehyde resins in solid form.

Abstract: The present invention is directed to sizing compositions for use on glass fibers which are used to reinforce lamination resins used in the formation of glass laminates. The sizing compositions contain a low molecular weight, polymer latex prepared by polymerizing at least one monomer(s) selected from the group consisting of acrylic acid, methacrylic acid, C.sub.1 -C.sub.18 alkyl esters of acrylic acid, C.sub.1 -C.sub.18 alkyl esters of methacrylic acid, glycidyl acrylate, glycidyl methacrylate, C.sub.1 -C.sub.4 hydroxyalkyl esters of acrylic acid, C.sub.1 -C.sub.4 hydroxyalkyl esters of methacrylic acid, vinyl esters of saturated aliphatic monocarboxylic acids containing up to 10 carbon atoms, (meth)acrylamide and their N-substituted derivatives, vinyl ethers, N-vinyl lactams, halogenated vinyl compounds, alkyl vinyl ketones, (meth)allyl ester of saturated aliphatic monocarboxylic acids, vinyl compounds such as vinyl pyrrole, olefins, diesters of itaconic, maleic and/or fumaric acid, and styrene.

Abstract: This invention relates to a method of preparing a reinforced polyester composition comprising the steps of:I. mixing(a) at least one cyclic ester oligomer selected from the group consisting of ethylene terephthalate and cyclohexylenedimethylene terephthalate,(b) an organic initiator comprising one to five hydroxy groups which are capable of opening the cyclic ester rings,(c) a catalyst, and(d) a reinforcing material,II. heating the mixture of I at a temperature ranging from 270.degree. C. to 320.degree. C.

Abstract: Aqueous peroxide-free size compositions for application to glass fibers contain, as essential components, a reaction product of a polymeric amine and an amine-reactable organosilane, a film-forming polymer and an emulsified polyolefin. The reaction product can be preformed or made in situ, and is preferably the product of a polyalkylene polyamine and an epoxy-functional alkoxysilane. An optional added component is a water-soluble, non-volatile carboxylic acid. Glass fibers treated with the size composition can be made into mats, especially continuous strand, needled mats, useful for reinforcing thermoplastic polymers such as polypropylene in laminates which then can be used in molding processes to make articles of good physical properties.

Abstract: A method of producing easily densified high bulk fibers that have adhered particulates. The fibers have hydrogen bonding or coordinate covalent bonding functionalities, and a binder is applied to the fibers to bind the particles to the fibers. The binder has a functional group that forms a hydrogen bond or a coordinate covalent bond with the particles, and a functional group that forms a hydrogen bond with the fibers. A substantial portion of the particles that are adhered to the fibers are adhered in particulate form by hydrogen bonds or coordinate covalent bonds to the binder, and the binder is in turn adhered to the fibers by hydrogen bonds. Fibers containing particles bound by this method are easily densified.

Abstract: Thermoplastic material comprising at least one thermoplastic polymer and 1 to 1000 ppm (by weight) of at least one substance which substantially absorbs infrared radiation, such as carbon black. The reinforcement-fibre bundles impregnated with a thermoplastic polymer, in accordance with the invention, are particularly advantageous for reinforcing pipes by filament winding.

Abstract: A thermoplastic polyurethane elastomeric seal composition comprising, by weight, about 90% to 99% thermoplastic polyurethane elastomer and about 1% to 10% fibers. Also, the thermoplastic polyurethane elastomer is derived from the reactants comprising: (i) a mixture of polyol and an aromatic chain extender in a molar ratio in the range of from about 40:60 to about 60:40 of butanediol glycol adipate to hydroquinone bis 2-hydroxyethyl ether, and (ii) 1,5 naphthalene diisocyanate present in a molar ratio in the range of about 50:50 to about 54.5:45.5 of 1,5 naphthalene diisocyanate to the said first mixture of polyol and an aromatic chain extender. After curing, the thermoplastic polyurethane elastomeric seal compound has outstanding wear resistance and low compression set.This thermoplastic polyurethane elastomeric seal compound is particularly useful in making shaft seals subject to high wear and high pressure, for use in hydraulic rams in earthmoving equipment.

Abstract: The transparent articles described herein have interspersed small particles with a metallic glint. This appearance is achieved by dispersing metal oxide-coated glass platelets within a thermoplastic matrix. It is desirable to take steps to avoid breaking the glass platelets during the process of preparing these materials.