Abstract: A process for preparing an aqueous dispersion of composite particles composed of addition polymer and finely divided inorganic solid is described.

Abstract: The invention is drawn to silane copolymers prepared from the reaction of one or more polyisocyanates with one or more lubricious polymers having at least two functional groups, which may be the same or different, that are reactive with an isocyanate functional group and with one or more organo-functional silanes having at least two functional groups, which may be the same or different, that are reactive with an isocyanate functional group and at least one functional group reactive with a silicone rubber substrate. The silane copolymers of the invention can be used as coatings that are elastic when dry, lubricious when wet, and resist wet abrasion. These copolymers are useful as coatings for polysiloxane (rubber) and other difficult to coat substrates, especially for medical devices, such as catheters. These silane copolymers can contain active agents such as antimicrobials, pharmaceuticals, herbicides, insecticides, algaecides, antifoulants, and antifogging agents.

Abstract: The present invention discloses articles containing a coating composition, as well as methods of making and using the compositions which, when applied to a substrate and cured, provide articles having transparent abrasion resistant coatings, wherein the coatings have a matched refractive index to that of the substrate and can be tailored to control the extent of tint absorption (vide infra). The coating compositions comprise an aqueous-organic solvent mixture containing a mixture of hydrolysis products and partial condensates of an epoxy-functional silane, a carboxylic acid functional compound selected from the group consisting of carboxylic acids, multifunctional carboxylic acids, anhydrides, and combinations thereof, a metal oxide composite colloid, and a disilane. The coating compositions may further include a mixture of hydrolysis products and partial condensates of one or more silane additives, a colloidal silica material, and a tetrafunctional silane.

Abstract: A process for providing a coating composition which, provides an abrasive resistant coating having a refractive index of the substrate and controlled tintability. The composition which, when applied to at least one surface of a substrate comprises an aqueous-organic solvent mixture containing a mixture of hydrolysis products and partial condensates of an epoxy-functional silane, a carboxylic acid functional compound selected from the group consisting of carboxylic acids, multifunctional carboxylic acids, anhydrides, and combinations thereof, a metal oxide composite colloid, a disilane and an effective amount of a leveling agent for permitting the aqueous-organic mixture to spread on the substrate and thereby provide substantially uniform contact of the aqueous-organic mixture with the substrate. The coating compositions may further include a mixture of hydrolysis products and partial condensates of one or more silane additives, a colloidal silica material, and a tetrafunctional silane.

Abstract: Disclosed is a process that comprises contacting, in the presence of an esterification or transesterification or polycondensation catalyst composition, a toner, and a phosphorus compound, a carbonyl compound and an alcohol under a condition suitable for esterification, transesterification, or polymerization.

Abstract: In a process of producing PBT, a mixture of BDO and TPA is esterified in the presence of a catalyst solution, and the esterification product is polycondensated. To avoid the formation of deposits in the PBT, the catalyst solution contains 0.05 to 10 wt-% alkyl titanate, 85 to 99 wt-% BDO, 50 to 50,000 ppm bifunctional carboxylic acid equivalents and/or monofunctional hydroxycarboxylic acid equivalents and not more than 0.5 wt-% water.

Abstract: The invention provides intimate physical mixtures of macrocyclic polyester oligomer (MPO) and filler, as well as methods for their preparation and use. Improved dispersion of filler in a polymer matrix is achieved upon polymerization, and larger amounts of filler with high aspect ratio can be used. In one aspect, the invention provides mixtures of MPO with magnesium silicate. In another aspect, the invention provides a mixture of MPO, filler, and polymerization catalyst as a one-part, ready-to-polymerize material with a long shelf life. The one-part material can be used, for example, in the manufacture of parts without modification of existing processing equipment.

Abstract: A composition comprising a hydrolyzable organosilicon compound and porous fine particles, a coating made from the composition and a laminated plate comprising a substrate and the coating are provided. The coating is superior in adhering properties to a substrate and is equipped with an adequate hardness.

Abstract: Polyamideimide coating compositions for magnet wire which exhibit solvent or varnish-induced craze resistance. The polyamideimide compositions include a compound selected from the group consisting of diacid compounds, trimellitic anhydrides, benzophenonetetracarcoxylic anhydrides and mixtures thereof, a diisocyanate compound, dihydroxyl compound, a trihydroxyl compound, a fluoropolymer, and a mineral filler.

Abstract: There is disclosed a polyurethane composition with a glass cullet filler. The composition comprises at least one polyol, an isocyanate, a catalyst and glass cullet. The glass cullet has an average particle size of not greater than 100 mesh and not less than 325 mesh. A method of producing a polyurethane composition with a glass cullet filler is also disclosed.

Abstract: A method of protecting a surface has the steps of providing a coating material containing sufficient aluminum flakes to provide a physical barrier to corrosion; and applying the coating material to a surface, thereby protecting the surface with an armor of aluminum. The method provides a coating material comprising about 3% to about 25% by weight of aluminum flakes, about 5% to about 20% by weight of aluminum flakes and about 7% to about 15% by weight of aluminum flakes. The aluminum flakes in the coating material can be non-leafing. A method of treating old concrete and rusting rebar, calls for providing a coating material containing sufficient aluminum flakes to provide a physical barrier to corrosion and polyisocyanates with sufficient unreacted NCO groups to scavenge water and provide a water-tight coating; and applying the coating material to the surfaces of damaged concrete and exposed rebar, thereby protecting the surfaces with an armor of aluminum.

Abstract: An adhesive which comprises (1) 100 parts by weight of an epoxy resin and a hardener therefor, (2) 75 to 300 parts by weight of an epoxidized acrylic copolymer having a glycidyl (meth)acrylate unit content of 0.5 to 6 wt. %, a glass transition temperature of ?10° C. or higher and a weight average molecular weight of 100,000 or more and (3) 0.1 to 20 parts by weight of a latent curing accelerator; an adhesive member having a layer of the adhesive; an interconnecting substrate for semiconductor mounting having the adhesive member; and a semiconductor device containing the same.

Abstract: A golf ball incorporates nanocomposite material, nanofiller material, or both, in its core, cover, or intermediate layers. Also, a method includes a step of blending into a composition for a golf ball nanocomposite material, nanofiller material or both. The nanocomposite and/or nanofiller materials impart favorable properties to materials used for golf balls, and they provide for greater versatility in usage than materials previously used. Particular compositions incorporating nanocomposite material also are described as suited for use in golf ball compositions.

Abstract: A networked polymer/clay alloy is produced from a monomer/clay mixture comprising a monomer, a cross-linking agent and clay particles. An initiator means is used to initiate polymerization of the monomer/clay mixture. The clay is chemically integrated with the polymer such that, on exposure to water, the networked polymer/clay alloy swells with substantially no clay separating from the alloy.

Abstract: The specification describes preparation of materials comprising selected boron anions and processes using them as catalysts for condensation reaction of compounds having silicon-bonded hydroxy or alkoxy groups. Preferred anion compounds comprise borates incorporating quadri-substituted boron in which the substituents include highly halogenated hydrocarbon groups for example pentafluorinated phenyl groups or bis (trifluoromethyl) phenyl groups. Preferred anions are {B(C6F5)4}− and {B(C6(CF3)2H3)4}−.

Abstract: A composition comprising a cationic polymerization compound and a porous fine particle, a coating made from the composition and a laminated plate comprising a substrate and the coating are provided. The coating is superior in adhering properties to a substrate and is equipped with an adequate hardness.

Abstract: The invention relates to silicone compositions which can be crosslinked to give elastomers and which comprises the constituents (A) from 20 to 99% by weight of polyorganosiloxane containing at least two alkenyl groups per molecule and having a viscosity at 25° C. of from 0.1 to 500,000 Pa.s, (B) from 1 to 80% by weight of non-reinforcing filler having a mean particle size of from 0.1 to 200 &mgr;m and a specific surface area of <100 m2/g, (C) a crosslinking component comprising (C1) an organic peroxide, or (C2) an organosilicon compound containing at least two SiH functions per molecule in combination with a hydrosilylation catalyst, and (D) a nitrogen compound which is selected from amino, ammonium and amido compounds and nitrogen-containing organosilicon compounds. The compositions exhibit improved thermal stability and resistance to oil at elevated temperatures.

Abstract: A reinforced networked polymer/clay alloy composite is produced by contacting a monomer/clay mixture with a reinforcing agent. The monomer/clay mixture comprises a monomer, a cross-linking agent and clay particles. An initiator means is used to initiate polymerization of the monomer/clay mixture, while the cross-linking agent concurrently acts to network oligomeric and polymeric species formed during polymerization to produce a networked polymer/clay alloy in the presence of the reinforcing agent. The networked polymer/clay alloy is intimately integrated with the reinforcing agent such that, on exposure to water, the networked polymer/clay alloy swells with substantially no clay separating from the composite.

Abstract: In one embodiment the present invention provides a coated substrate comprising a substrate, a radiation-cured coating or a thermally-cured on at least a portion of the substrate, wherein the coating comprises an inherent macroscopic texture. In another embodiment, the present invention provides a pre-cured coating mixture comprising a radiation-curable resin and an initiator, or a thermally-curable resin and thermal initiator, wherein the radiation- or thermally-curable resin and the respective initiator form a pre-cured coating mixture capable of forming a macroscopic texture upon application of the mixture on a substrate. In another embodiment the present invention provides a pre-cured coating mixture comprising a radiation- or thermally-curable resin, an initiator, and texture-producing particles having an effective size to provide a macroscopic texture upon application of the mixture on a substrate.

Abstract: The invention relates to a process for preparing a liquid melamine urea formaldehyde resin that has long term stability. The invention also relates to a liquid MUF resin with a high formaldehyde and melamine content. The invention further relates to a liquid suspension hardener including a catalyst, a thickener, a filler, and water. The invention also relates to a adhesive composition for use in wood bonding that is made by adding a hardener to the resin.

Abstract: A curable composition comprising (A) an organopolysiloxane having functional groups capable of condensation reaction at both molecular terminals thereof and (B-1) a hydrophobic silica and a hydrophilic silica. A curable composition comprising (A) an organopolysiloxane having functional groups capable of condensation reaction at both molecular terminals thereof and (B-2) a hydrophobic silica, wherein the hydrophobic silica (B-2) is thermally treated together with the organopolysiloxane (A).

Abstract: An aqueous composition comprising at least 18% surfactant and colloidal inorganic clay. This composition is stable with regard to phase separation at 40° C. for at least three months and exhibits increased low-shear viscosity relative to a composition without clay. The composition comprises at least one lipophilically-modified copolymer containing acrylic acid residues and C2-C4 alkyl (meth)acrylate residues.

Abstract: The present invention relates to processes for preparing a nanocomposite comprising: a. preparing an organoclay material by reacting a swellable layered clay with an onium ion represented by Formula (I): wherein i) M is nitrogen or phosphorus, ii) R1 is a straight or branched alkyl group having at least 8 carbon atoms, iii) R2, R3, and R4 are independently selected from organic or oligomeric ligands or hydrogen, and iv) at least one of R2, R3, and R4 comprises an alkylene oxide group having from 2 to 6 carbon atoms or a polyalkylene oxide group, and b. melt mixing the organoclay material with an expanding agent, and c. melt extruding the expanded organoclay and a polymer to provide a nanocomposite.

Abstract: Physical properties, such as melting temperature of MPO compositions may be significantly modified by modifying the weight percentage of one or more of the constituent MPOs. For example, removal of a significant portion of the tetramer can afford low melting MPO compositions. In one aspect, the invention is related to a method for modifying a physical property of a MPO composition that includes the steps of (a) providing a composition that has at least two species of MPOs, and (b) changing the weight percentage of at least one species of the MPOs in the composition. In another aspect, the invention is related to a MPO composition that includes at least two species of MPOs where a species of the MPOs having the highest melting temperature is present in an amount less than or equal to 5%.

Abstract: A filler mixture comprising an organophilic layer silicate obtainable by treatment of a natural or synthetic layer silicate with a swelling agent selected from sulfonium, phosphonium and ammonium compounds (salts of melamine compounds and cyclic amidine compounds being excluded as ammonium compounds) and a mineral filler different therefrom, yields, in combination with thermosetting resins, nanocomposites having improved mechanical properties.

Abstract: An embedding resin embeds an electronic part in an object and has a dielectric constant of about 5 or less and tan &dgr; of about 0.08 or less.

Abstract: The present invention generally relates to a process polymerizing a feedstock which comprises glycerol or derivatives thereof, said process comprising heating said feedstock, in the presence of at least one synthetic magnesium saponite clay catalyst in the H form, to a temperature at which condensation polymerization takes place, for a time sufficient to produce polymers of glycerol or derivatives thereof.

Abstract: A reinforced networked polymer/clay alloy composite is produced by contacting a monomer/clay mixture with a reinforcing agent. The monomer/clay mixture comprises a monomer, a cross-linking agent and clay particles. An initiator means is used to initiate polymerization of the monomer/clay mixture, while the cross-linking agent concurrently acts to network oligomeric and polymeric species formed during polymerization to produce a networked polymer/clay alloy in the presence of the reinforcing agent. The networked polymer/clay alloy is intimately integrated with the reinforcing agent such that, on exposure to water, the networked polymer/clay alloy swells with substantially no clay separating from the composite.

Abstract: A networked polymer/clay alloy is produced from a monomer/clay mixture comprising a monomer, a cross-linking agent and clay particles. An initiator means is used to initiate polymerization of the monomer/clay mixture. The clay is chemically integrated with the polymer such that, on exposure to water, the networked polymer/clay alloy swells with substantially no clay separating from the alloy.

Abstract: There are provided an inorganic filler, multi-functional filler, an organic compound filler, a modified filler, and a dental coloring filler suitable in use as a filler in a dental composition, compositions having a resin matrix of an organic polymer material, as well as a process for producing the same. Disclosed are an inorganic filler which comprises an inorganic fine particle, wherein the surface of the inorganic fine particle is covered with polysiloxane. Also disclosed is a multi-functional filler which comprises an inorganic fine particle containing an acid reactive element, wherein a cement reactive phase is formed on the surface of the inorganic fine particle, and the cement reactive phase is further covered with polysiloxane. Also disclosed is an organic compound filler which comprises an organic-inorganic polymer particle or an organic polymer particle, wherein the surface of the organic-inorganic polymer particle or an organic polymer particle is covered with an inorganic film.

Abstract: A reinforced networked polymer/clay alloy composite is produced by contacting a monomer/clay mixture with a reinforcing agent. The monomer/clay mixture comprises a monomer, a cross-linking agent and clay particles. An initiator means is used to initiate polymerization of the monomer/clay mixture, while the cross-linking agent concurrently acts to network oligomeric and polymeric species formed during polymerization to produce a networked polymer/clay alloy in the presence of the reinforcing agent. The networked polymer/clay alloy is intimately integrated with the reinforcing agent such that, on exposure to water, the networked polymer/clay alloy swells with substantially no clay separating from the composite.

Abstract: A networked polymer/clay alloy is produced from a monomer/clay mixture comprising a monomer, a cross-linking agent and clay particles. An initiator means is used to initiate polymerization of the monomer/clay mixture. The clay is chemically integrated with the polymer such that, on exposure to water, the networked polymer/clay alloy swells with substantially no clay separating from the alloy.

Abstract: The invention is drawn to silane copolymers prepared from the reaction of one or more polyisocyanates with one or more lubricious polymers having at least two functional groups, which may be the same or different, that are reactive with an isocyanate functional group and with one or more organo-functional silanes having at least two functional groups, which may be the same or different, that are reactive with an isocyanate functional group and at least one functional group reactive with a silicone rubber substrate. The silane copolymers of the invention can be used as coatings that are elastic when dry, lubricious when wet, and resist wet abrasion. These copolymers are useful as coatings for polysiloxane (rubber) and other difficult to coat substrates, especially for medical devices, such as catheters. These silane copolymers can contain active agents such as antimicrobials, pharmaceuticals, herbicides, insecticides, algaecides, antifoulants, and antifogging agents.

Abstract: A slush molding process in which the moldable thermoplastic composition powder dosed to the mold is prepared by blending ethylene carboxylic acid copolymers or ionomers with ethylene/glycidyl acrylate or methacrylate copolymer and cross-linking promoter at a temperature and for a time that does not cause significant cross-linking prior to dosing to mold, which is held for sufficient time and temperature to cause cross-linking in-situ, and optionally, other additives including release agents.

Abstract: Disclosed is a method for preparing polyester resins copolymerized with glycol for modification such as 1,4-cyclohexanedimethanol, in which the content of said glycol ingredient for modification ranges from 20 to 80 mol % of the total glycol content. Dicarboxylic acid such as terephthalic acid is esterified with ethylene glycol and said glycol for modification. The esterification product is subjected to polycondensation in the presence of a titanium dioxide/silicon dioxide coprecipitate catalyst, said catalyst being in the form of 4% or less strength by weight suspension in glycol. The copolyester prepared as above shows excellent transparency and color properties in addition to being produced at high efficiency.

Abstract: The invention relates to a process for preparing a liquid melamine urea formaldehyde resin that has long term stability. The invention also relates to a liquid MUF resin with a high formaldehyde and melamine content. The invention further relates to a liquid suspension hardener including a catalyst, a thickener, a filler, and water. The invention also relates to a adhesive composition for use in wood bonding that is made by adding a hardener to the resin.

Abstract: Disclosed are a cyanate ester based resin-containing insulating composition, an insulating film made therefrom and a multilayer printed board having the insulating film. The insulating composition comprises 1-75% by weight of epoxy resin, 1-60% by weight of cyanate ester resin, up to 20% by weight of a filler, a curing agent and a metal catalyst, from which the insulating film can be prepared, and the film-applied multilayer printed board can be manufactured. Use of epoxy resins having excellent electrical properties and cyanate ester based resins having high heat resistance causes the reaction of hydroxy groups in some epoxy resins with cyanate ester, thus forming such net structures as to increase the heat resistance of the insulating composition, the insulating film and the multilayer printed circuit board.

Abstract: The present invention discloses compositions as well as methods of making and using said compositions, having improved stability which, when applied to a variety of substrates and cured, form transparent coatings having abrasion resistant properties and a matched refractive index to that of the substrate. The compositions comprise an aqueous-organic solvent mixture containing a mixture of hydrolysis products and partial condensates of an epoxy-functional silane, a carboxylic acid functional compound selected from the group consisting of carboxylic acids, multifunctional carboxylic acids, anhydrides, and combinations thereof, a metal oxide composite colloid, a colloidal silica material, and a tetrafunctional silane. The coating compositions of the present invention may further include a mixture of hydrolysis products and partial condensates of one or more silane additives.

Abstract: The polyamide resin shaped article of the present invention is produced by preliminarily melt-kneading a m-xylylene-containing polyamide resin and a layered silicate subjected to a swelling treatment to prepare a resin composition containing the layered silicate in high concentration, melt-kneading the resin composition with another portion of m-xylylene-containing polyamide resin, and then formed into the shaped article. Since the amount of the m-xylylene-containing polyamide resin exposed to the heat history twice in the melt-kneading steps is minimized, the gel formation due to the thermal degradation can be reduced and the lowering of the relative viscosity due to the decrease of the molecular weight caused by the thermal degradation of the m-xylylene-containing polyamide resin is prevented.

Abstract: The invention relates to a process for preparing a liquid melamine urea formaldehyde resin that has long term stability. The invention also relates to a liquid MUF resin with a high formaldehyde and melamine content. The invention further relates to a liquid suspension hardener including a catalyst, a thickener, a filler, and water. The invention also relates to a adhesive composition for use in wood bonding that is made by adding a hardener to the resin.

Abstract: A cationically polymerizable resin composition which comprises (A) a compound containing at least one ring selected from the group consisting of an oxirane ring and an oxetane ring; (B) an onium salt; (C) an organic peroxide; and (D) an alkaline filler except for a hydroxide.

Abstract: A radiation—and/or heat-curable adhesive with high thermal conductivity includes the following recipe: 19 to 40 wt % of a difunctional acrylated, aromatic polyurethane; 9 to 25 wt % of (2-hydroxypropyl) acrylate or methacrylate; 1 to 5 wt % of one or more photoinitiators; 35 to 70 wt % of one or more mineral fillers; 0.5 to 3 wt. % of an SiO2-containing thixotropizing agent; and 0.5 to 2 wt % of an organic peroxide.

Abstract: A rubber composition is obtained which exhibit improved strength, abrasion resistance and antistatic properties, as well as low rolling resistance. The rubber composition is characterized as being rendered conductive by incorporating into rubber a silica filler having a conductive surface layer as composed of carbon or conductive tin oxide.

Abstract: A process for producing a polyester. The process comprises polymerizing a polymerization mixture comprising (i) a carbonyl compound or an oligomer of a carbonyl compound and (ii) a glycol, in the presence of a titanium catalyst composition, to produce the polyester, wherein a coated titanium dioxide comprising a titanium dioxide and a coat is added before or during the polymerizing.

Abstract: Physical properties, such as melting temperature of MPO compositions may be significantly modified by modifying the weight percentage of one or more of the constituent MPOs. For example, removal of a significant portion of the tetramer can afford low melting MPO compositions. In one aspect, the invention is related to a method for modifying a physical property of a MPO composition that includes the steps of (a) providing a composition that has at least two species of MPOs, and (b) changing the weight percentage of at least one species of the MPOs in the composition. In another aspect, the invention is related to a MPO composition that includes at least two species of MPOs where a species of the MPOs having the highest melting temperature is present in an amount less than or equal to 5%.

Abstract: A method for preparing a binder material for cellulosic products which comprises providing a polymeric resin base material preferably comprising 4,4′ or 2,4′ methylene diphenylene diisocyanate in the range of from about 20% to about 55% by weight and a functionality greater than about 2, forming a colloidal gel from silica and a basic solution, and incorporating the colloidal gel into the polymeric base material at a temperature, rate of addition and agitation level to achieve a substantially homogeneous binder material.

Abstract: Disclosed is a sheet for growing a plant in cultivation comprising a base material in the form of a sheet and a polymer for forming saccharide-free hydrogel disposed on at least one of the surfaces of the sheet. The polymer for forming saccharide-free hydrogel has a crosslinked structure.

Abstract: Provided are curable coating compositions comprised of any of a variety of film-forming polymers containing reactive functional groups, a curing agent containing functional groups which are reactive with the functional groups of the polymer, and an exfoliated silicate material derived from a layered silicate which has been exfoliated with a polymer which is compatible with both the film-forming polymer and the curing agent. The inclusion of the exfoliated silicate material enhances coating properties such as adhesion, appearance, crater resistance, and rheology control.

Abstract: This invention relates to a polymer-clay intercalates, exfoliates, nanocomposites and methods of manufacturing comprising (i) a melt-processible matrix polymer, and incorporated therein (ii) a mixture of at least two layered clay materials. The invention also relates to articles produced from a nanocomposite and a process for preparing a nanocomposite.

Abstract: A dental material comprising a hardenable resin, a non-heavy metal oxide particle and a heavy metal oxide. The dental materials can be radiopaque, strong, translucent, or resistant to toothbrush abrasion, or combinations thereof.