Abstract: The present invention relates to epoxy resin formulations comprising a specific catalyst mixture for enhancing the reactivity thereof.

Abstract: The present invention relates to separation of biomolecules. More closely, the invention relates to a method for production of a separation medium comprising hybrid particles of inorganic and organic material as well as the hybrid particles produced by this method. Finally, the invention relates to use of the hybrid particles for separation of biomolecules, preferably phosphoproteins. The method comprises the following steps: addition of inorganic metal oxide particles to an organic solution to form a mixture; and emulsification of the mixture to form porous hybrid particles, wherein the density of the porous hybrid particles is between 1.0 and 1.5 g/ml, and wherein the inorganic particles have a shape and size that maximizes their active surface area enabling the inorganic particles to interact with biomolecules.

Abstract: A bioplastic composition may contain certain biodegradable and renewable components. In some examples, the bioplastic composition includes at least one kind of aquatic macrophyte biomass, which may contain a native composition of protein and carbohydrates, in a blend with one or more types of biodegradable or durable thermoplastic polymers. The aquatic macrophyte composition may provide a balance of both polymeric and reinforcing properties to the blended bioplastic not typically exhibited by terrestrial feedstock such as soy meal or corn starch. Such a bioplastic composition may be formed into molded articles using extrusion, injection molding, compression molding, or the like.

Abstract: Provided is a resin composition including cellulose acetate propionate; from about phr to about 30 phr of at least one of plasticizer selected from an adipate-based plasticizer and a polyester-based plasticizer; and from about 5 phr to about 50 phr of a condensed phosphoric acid ester compound.

Abstract: Formulations containing a mixture of an epoxy resin and an ionic liquid or an adduct of an epoxy resin and an ionic liquid which may initiate curing of the epoxy resin, the mixture having nano-materials dispersed or dissolved therein. These formulations can be used for the preparation of nanocomposites. Methods of preparing nanocomposites by curing a dispersion of nano-materials in a mixture of an epoxy resin and an ionic liquid or an adduct of an epoxy resin and an ionic liquid which may initiate curing of the epoxy resin. Nanocomposites comprising a cured product formed by curing an epoxy resin with an ionic liquid or an adduct of an epoxy resin and an ionic liquid having nano-materials dispersed or dissolved therein. Embodiments of the invention permit manufacture of nanocomposites having relatively high fracture toughness, relatively high loadings of nano-materials and the ability to tailor the properties of the nano-composites.

Abstract: A prepreg composite material that includes a fiber layer and a resin comprising a thermoset resin component, a curing agent and a fibrous micropulp. The micropulp component is an aramid fiber having a volume average length of from 0.01 to 100 micrometers. The prepreg is useful in composite panel construction for minimizing fluid permeation into the cured structure. This prepreg is particularly suitable for making honeycomb sandwich panels. Film adhesives, liquid and paste resins containing aramid fiber micropulp are also disclosed.

Abstract: The present invention relates to a method for producing a flat article comprising a material that contains the products of several reactions. The method comprises the following steps: carrying out a pre-cross-linking of a mixture comprising an epoxydation product of a carboxylic acid ester using at least one cross-linking agent in order to form a mouldable material; moulding the mouldable material in the shape of a flat article; and curing the moulded material in order to produce a flat article, wherein the pre-cross-linking reaction is separate from the curing reaction. This invention also relates to a mouldable material that can be stored and to a flat article that can be obtained from the same.

Abstract: Polymer film, coating, and molded article elements for use in a display device are described which comprise a polymer phase having molecularly dispersed therein an acid scavenger compound, a hindered amine light stabilizer compound and a hindered phenol antioxidant compound, wherein the hindered amine light stabilizer compound and the hindered phenol antioxidant compound are present at a weight ratio of from 20:1 to 1:20, and the weight ratio of the acid scavenger compound to the total concentration of hindered amine light stabilizer compound and hindered phenol antioxidant compound is from 10:1 to 1:10. Use of a combination of an acid scavenger and a combination of two radical scavenger antioxidants dispersed in a polymer phase in accordance with the invention enables enhanced stabilization of the polymer when exposed to high heat and/or humidity condition, which has been found to be especially desirable when applied to polymer layers laminated into displays (e.g., polarizers in liquid crystal displays).

Abstract: A protective film of a polarizing plate comprising a callulose ester film, wherein a variation in a weight of the cellulose ester film is 0 to 2% under a keeping condition of 80±5° C. and 90±10% RH for 48 hours.

Abstract: An object of the invention is to provide a polishing pad having the excellent slurry retaining properties and the large removal rate and a composition for a polishing pad which can form such the polishing pad. A composition for polishing pad of the invention is comprising a water-insoluble matrix material containing a crosslinked polymer and a water-soluble particle dispersed in the water-insoluble matrix material. The elongation remaining after breaking is 100% or less when a test piece comprising the water-insoluble matrix material is broken at 80° C. according to JIS K 6251. A polishing pad of the invention is that at least a part of the polishing pad comprises the composition for polishing pad.

Abstract: Biobased cross-linked compositions, methods of fabrication and structures, in particular biobased printed wiring boards using the compositions and methods of making the structures are described. Biobased materials such as lignin, crop oils, wood resins, tannins, and polysaccharides and combinations thereof are cross-linked, preferably using heat, a cross-linking agent, and an initiator. The materials fabricated have suitable properties for printed wiring boards which are made by impregnating a fiberglass or biobased cloth with an admixture of the biobased material, cross-linking agent and initiator which is processed by conventional methods to produce a printed wiring board.

Abstract: A matrix board coating composition for use in the formation of a mold in which flexographic printing plates are produced, the coating is a water-based, latex emulsion having a two step phenolic component to increase shelf life, reduce volatiles and improved flow properties of the coating.

Abstract: A curable molding material based on a dispersion of a finely divided ethylene polymer in an unsaturated polyester resin is prepared by a process in which a melt of the ethylene polymer is uniformly distributed in a melt of an unsaturated polyester in an extruder or stirred kettle.

Abstract: The flavor protecting properties of interior container coating compositions are improved by the inclusion of cyclodextrins in the composition.

Abstract: A solder paste flux comprising an epoxy resin, a carboxylic acid, a substantially solid alcohol, cellulose, a catalyst, a solvent for the carboxylic acid and a synthetic resin; a solder paste incorporating this solder paste flux; and a surface mount electronic manufacturing process utilizing the solder paste.

Abstract: The present invention is the reaction product of an aryl sulfonamide, at least one epoxy compounds comprising at least one diepoxy compound and optionally at least one monoepoxy compound. The diepoxy compound comprises two epoxy groups and the monoepoxy compound comprises one epoxy group. Preferably, the monoepoxy compound and the diepoxy compound have no hydroxyl groups or other functional groups. Specific embodiments include a reaction product derived from at least one monoepoxy compound and at least one diepoxy compound. The reaction product of the present invention has a relatively low molecular weight of from 450 to 2000, preferably 450 to 1000, and more preferably 450 to 800.

Abstract: An electrically conductive coating composition is useful for a primer or a surfacer paint for a plastic article, in particular one having a small polarity on the surface, and comprises (A) a polyurethane, (B) a spiro-ortho-ester resin of the ring-opening expansive property, (C) a cellulose derivative, (D) a hydroxy-containing surfactant and (E) an electrically conductive material.

Abstract: Methods of continuously forming and suspending consolidatable resin composition coated particulate material in a gelled aqueous carrier liquid and transporting the coated particulate material by way of the gelled aqueous carrier liquid to a zone in which the sand is consolidated. In accordance with the methods, substantially continuous streams of a gelled aqueous carrier liquid, uncoated particulate material, a resin composition which will subsequently harden and a surface active agent are admixed wherby the particulate material is continuously coated with the resin composition and suspended in the gelled aqueous carrier liquid.

Abstract: A cross-linked resin produced by heating a mixture of (a) a bis(2-oxazoline) compound, (b) an aromatic polyamine compound which has at least two amino groups in the molecule and (c) a polyepoxy compound which has at least two epoxy groups in the molecule at elevated temperatures, preferably in the presence of an oxazoline ring-opening polymerization catalyst. The resin shows a high mechanical strength and toughness, a very small water absorption and a very high resistance to heat.

Abstract: A fiber reinforced composite structure having a glass transition temperature greater than 150.degree. C. is comprised of:a) reinforcing fiber andb) a curable epoxy resin composition comprising(i) one or more epoxides having more than one epoxide group per molecule, of which epoxides at least 10 percent by weight is a 9,9-bis[4-(2,3-epoxypropoxy)phenyl]fluorene, all of the fluorene epoxy present being free of ortho substitution;(ii) an effective amount of one or more epoxy curing agents.

Abstract: A method and composition employing microencapsulated thickeners for providing controlled thickening of thermosetting resins, including sheet molding compositions.

Abstract: This invention relates to a novel composition comprising a water- and caustic-insoluble, inswellable, fibrous, particulate polymer comprising cross-linked units of a water-soluble polymer and a water-soluble cationic poly(diallylamine)-epichlorohydrin resin. This polymer is useful as an exchange resin, tablet disintegrant, thickener and suspending aid.

Abstract: A plastic article, in particular a highly crystalline plastic, can be effectively coated with a paint by using a primer composition comprising (A) a polyurethane, (B) a spiro-ortho-ester resin being capable of the ring-opening expansion, (C) a cellulose derivative and (D) a surfactant having a hydroxy group.

Abstract: Heat curable compositions of reinforcing fibers (filaments), a thermosetting prepolymer or prepolymers and an effective amount of a curing agent or agents in which the fibers have been precoated with a fiber- and matrix resin-reactive elastomer are described. The compositions are useful to form composites of high fracture toughness and compressive strength which, in turn, can be formed into structural members such as aircraft parts. Processes for applying an elastomer coating to fiber tapes, fabrics and rovings are also described.

Abstract: The invention relates to the production of decorative panels. The process for production according to the invention is characterized in that:an epoxy resin which is liquid and polymerizing at ambient temperature in the presence of a polymerization reagent having the least reactive character at the same temperature,fragments and/or pieces of wood previously heated to a homogeneous temperature higher than the peak temperature of exothermia of polymerization of the resin-reagent mixture,are used. The invention is more particularly applicable to the manufacture of decorative trays for tables.

Abstract: Curable compositions are provided comprising epoxide prepolymers and polyaminobenzoates, alone, or combined with reinforcements, e.g., graphite fibers, and, optionally modified with second resins. The cured fiber resin matrix compositions exhibit high toughness combined with excellent hot/wet strength.

Abstract: A novel adhesive exhibiting low outgassing upon exposure to high temperature is disclosed. The instant adhesive comprises: (a) a soluble polyimide resin, (b) a solvent for said polyimide resin, (c) a tackifier, (d) an epoxy resin, (e) a hardener for said epoxy resin, (f) a catalyst which catalyzes the reaction between the epoxy and hardener, (g) a cross-linking agent reactive with the polyimide solvent of (b), (h) a catalyst which accelerates the reaction between (b) and (g), and (i) a filler material. Optionally, the adhesive may also contain a conductive material. A process for making the adhesive is also disclosed.

Abstract: A pigment dispersing resin which essentially consists of a modified polymer obtained by introducing at least one of acidic groups and basic groups into a polymeric polyol of star-shaped structure prepared by reacting a polyol having at least four hydroxyl groups per molecule with an epoxide, the resin being compatible with pigments and vehicle resins, and a pigment dispersed paste which comprises the pigment dispersing resin and a pigment, the pigment dispersed paste being low in viscosity over a long period of time.

Abstract: An improved denture adhesive containing an adhesive polymeric fraction comprising sodium carboxymethylcellulose and poly(ethylene oxide) in a hydrophilic vehicle comprising certain polyethylene glycols and, as an optional component in certain forms of the subject adhesives, glycerin, for enhancing pharmaceutical elegance of the final product.

Abstract: A thermosetting composition for use in the formation of a magnetizable film on a substrate is disclosed herein, which has improved resistance to frictional wear and abrasion, and improved impact durability. The composition comprises a heat-curable polymer resin, magnetizable particles, a fatty ester, and sufficient solvent to provide a viscosity of from about 200 to about 600 centipoise at about 24.degree. C. The method of preparation of the composition as well as its use are also disclosed.

Abstract: An ambient temperature curing, two-package type coating composition consists essentially of a solution of (1) components reactive with each other to form a film upon curing at ambient temperature and (2) a solvent; said film-forming components (1) being (a) copolymer having pendant epoxy groups prepared by copolymerization of 2 to 60% by weight, on the basis of total monomer, of glycidyl acrylate or methacrylate or allylglycidyl ether with at least one other polymerizable monomer, and (b) 0.1 to 3.0 equivalents of at least one of acid phosphate esters or acid phosphite esters, and said solvent (2) being (c) at least 5% by weight, on the basis of the solvent (2), of an alcoholic solvent, and (d) at least one other organic solvent. The coating composition has a good pot life when mixed into an ultimate single mixture, and the resulting coating film has a good resistance to water.

Abstract: Powder primer compositions of the kind consisting essentially of a blend of an epoxy functional film-forming resin with a curing agent, exhibit improved corrosion resistance under powder topcoating compositions when zinc oxide and a dicarboxylic acid are added.