Abstract: The present invention relates to a matrix material for a carbon fiber-reinforced composite. The matrix material for the carbon fiber composite contains a matrix resin as a resin component. The matrix resin contains at least a first epoxy resin containing a polyfunctional glycidylamine-type epoxy resin having four epoxy groups in one molecule. The matrix resin may further contain at least one of a p-aminophenol-type epoxy resin having three epoxy groups in one molecule, and a tetramethylbiphenol-type solid epoxy resin having two epoxy groups in one molecule. The matrix resin has an average epoxy equivalency of 99 to 163.

Abstract: An epoxy resin adduct including the reaction product of (A) at least one polyfunctional aliphatic or cycloaliphatic epoxy resin; and (B) at least one reactive compound; wherein the polyfunctional aliphatic or cycloaliphatic epoxy resin is isolated from the epoxy resin formed by the epoxidation of (i) an aliphatic or cycloaliphatic hydroxyl-containing material using (ii) an epi-halohydrin, (iii) a basic-acting substance, (iv) a non-Lewis acid catalyst, and (v) optionally one or more solvents; and wherein the re-active compound (B) comprises one or more compounds having two or more reactive hydrogen atoms per molecule and the reactive hydrogen atoms are reactive with epoxide groups. A curable epoxy resin composition includes the adduct described above. A cured epoxy resin is prepared by a process of curing the curable epoxy resin composition containing the adduct described above.

Abstract: Described are methods and compositions for plugging in a subterranean formation. An example comprises providing a composition comprising a cementitious material, water, and a swellable glass additive, wherein the swellable glass additive comprises a plurality of interconnected organosilica nanoparticles; and introducing the composition into a subterranean formation.

Abstract: Disclosed are a thermoplastic resin composition which has a reduced tendency to mold staining while being shaped and a high flowability, and a shaped article which, when used as a lamp component, has good surface appearance and generates little volatiles by the heat of the lamp. Specifically disclosed are a thermoplastic resin composition containing a polyester resin (A), a cresol novolac epoxy resin (B), and a vinyl cyanide-aromatic vinyl copolymer containing epoxy group (C), and a shaped article shaped therefrom, wherein the cresol novolac epoxy resin (B) and the vinyl cyanide-aromatic vinyl copolymer containing epoxy group (C) are compounded in amounts of 0.01 to 3 parts by mass and 2 to 12 parts by mass, respectively, relative to 100 parts by mass of the polyester resin (A).

Abstract: A polyacrylamide based agricultural composition as a microemulsion is provided in form of a water-in-oil microemulsion with polyacrylamide dissolved in the water phase where the polyacrylamide solids content is from about two up to about 15 percent by weight, which is then further diluted in water at the time of use to impart the desired characteristics of the polymer to the water phase or to the material to which the water phase is applied.

Abstract: A composition of matter and method for preparation of a tissue augmentation material. A polysaccharide gel composition is prepared with rheological properties selected for a particular selected application. The method includes preparing a polymeric polysaccharide in a buffer to create a polymer solution or gel suspending properties in the gel and selecting a rheology profile for the desired tissue region.

Abstract: This invention relates to a novel curing method of oligomers, using metal triflates, and particularly to the curing of hydroxyl terminated elastomers to achieve crosslinked polymers. The method finds particular use as an alternative cure methodology to replace isocyanate curing. There is further provided a cured and crosslinked polymer binder, which is particularly suitable and compatible for use with energetic materials.

Abstract: The present invention provides Mannich base derivatives of N,N?-dimethyl secondary diamine polymers including Mannich base derivatives of methylamine-terminated poly-(N-methylazetidine) and Mannich base derivatives of methylamine-terminated poly-(N-methylazacycloheptane). Amine curing agent compositions and amine-epoxy compositions containing Mannich base derivatives of N,N?-dimethyl secondary diamine polymers are also disclosed.

Abstract: The subject matter of the invention is a radically polymerizable dental material comprising at least two components. A first component of the dental material contains the salt of a CH-acidic compound, and an additional component contains an acid with acidity greater than that of the CH-acidic compound of the first component. Both components contain radically polymerizable monomers. When the two components are mixed, the acid of the second component converts the salt of the CH-acidic compound of the first component into a CH-acidic molecule, and the CH-acidic molecule triggers the radical polymerization of the monomers. In addition to the advantages of CH-acidic compounds in dental materials on the basis of a reactive resin, the invention achieves long-term storage stability as a result of an increase in the proportion of the reactive resin matrix in polymerizable dental materials.

Abstract: The present invention relates to curable compositions that include a hydrazide functional material (a) represented by the following Formula (I), For Formula (I): n is 2; independently for each n, x is 0 or 1, y is 0 or 1, provided that the sum of x and y is 1; L1, independently for each n, is selected from a divalent hydrocarbyl group optionally interrupted with at least one of —O— and —S—; L2, independently for each n, is selected from a divalent hydrocarbyl group; and R1, independently for each n, is selected from hydrogen and hydrocarbyl. The curable compositions further include a reactant (b) that has at least two reactive groups that are reactive with and form covalent bonds with the hydrazide groups of the hydrazide functional material (a). The present invention also relates to curable powder coating compositions and curable adhesive compositions.

Abstract: An epoxy resin composition for optical sheets, the composition comprising a polyvalent carboxylic acid (A) represented by formula (I): wherein R1's each independently represent a hydrogen atom, an alkyl group having 1 to 15 carbon atoms, or a carboxyl group; q represents the number of substituent R1's, and represents an integer from 1 to 4; and P represents the following X: wherein there may be a plural number of R2's per ring, and R2's each independently represent a hydrogen atom or a methyl group; and * represents a bonding site linked to the oxygen atom; and an epoxy resin (B) having an aliphatic cyclic structure in the molecule.

Abstract: The present invention provides a mixture comprising at least three hardener components a1), a2), and b), the ratio of hardener component a1) to a2) being in the range from 0.1 to 10:1, and hardener component b) being present at 5% to 55% by weight, based on the mixture, a process for preparing this mixture, the use of the mixture of the invention for curing epoxy resins, the use of the mixture of the invention with epoxy resins as adhesives, and an epoxy resin cured with the mixture of the invention.

Abstract: A hydraulic cementing composition and a method of making the same is disclosed. The composition is useful to form a sheath of hardened cement in the annular space between a well pipe disposed in a well bore and the walls of the well bore. The cementing composition is a mixture of dry ingredients comprising hydraulic cement and an additive to control the loss of fluid from an aqueous slurry containing the cementing composition. The fluid loss additive and a method of making the same is disclosed. The fluid loss additive is the reaction product of three chemical compounds each having an ethylene backbone and functional groups selected from carboxylates, hydrogen, anhydrides and combinations thereof.

Abstract: A polyacrylamide based agricultural composition as a microemulsion is provided in form of a water-in-oil microemulsion with polyacrylamide dissolved in the water phase where the polyacrylamide solids content is from about two up to about 15 percent by weight, which is then further diluted in water at the time of use to impart the desired characteristics of the polymer to the water phase or to the material to which the water phase is applied.

Abstract: A polyacrylamide-based composition as a microemulsion is provided in the form of a water-in-oil microemulsion with polyacrylamide dissolved in the water phase, and further comprising ethylene oxide-propylene oxide block copolymer. Specifically, the present invention includes, dissolved in the water phase, a polyacrylamide copolymer and an EO/PO block copolymer, with the water phase mixed with an oil phase. Preferably, the present invention may further comprise the presence of at least one fatty acid and/or at least one nonionic surfactant to stabilize the microemulsion. In addition, the present invention may further comprise effective amount of other components, such as pesticides and/or fertilizers, that may be delivered to trees, plants or other vegetation.

Abstract: Water production from a subterranean formation is inhibited or controlled by pumping a fluid containing coated particles through a wellbore into the formation. The particles have been previously coated with a relative permeability modifier (RPM). Upon contact with water, the RPM coating expands or swells and inhibits and controls the production of water. The RPM may be a water hydrolyzable polymer having a weight average molecular weight greater than 100,000. The particles may be conventional proppants or gravel.

Abstract: The present invention discloses one liquid type cyanate ester-epoxy composite resin composition comprised of (A) cyanate ester resin, (B) epoxy resin and (C) latent curing agent. The present one liquid type cyanate ester-epoxy composite resin composition is characterized in that the above (C) latent curing agent is comprised of a modified amine (a), which has one or more amino group having active hydrogen within a molecule, obtained by a reaction of a polyamine compound (a-1) with an epoxy compound (a-2), and a phenol resin (b), and that the above polyamine compound (a-1) is a polyether polyamine compound and/or the above epoxy compound (a-2) is a polyether polyepoxy compound.

Abstract: A thermosetting epoxy resin composition comprising (A) a reaction mixture of a triazine derivative epoxy resin and an acid anhydride at a ratio of the epoxy group equivalent to the acid anhydride equivalent of 0.6 to 2.0; (B) an internal mold release agent; (C) a reflective material; (D) an inorganic filler; and (E) a curing catalyst. The internal mold release agent of component (B) comprises a carboxylate ester represented by: R11—COO—R12??(1) wherein R11 and R12 are CnH2n+1 and n is 1 to 30 and a compound represented by: wherein R1, R2, and R3 are selected from H, —OH, —OR, and —OCOCaHb with the proviso that at least one includes —OCOCaHb; R is CnH2n+1 (wherein n is an integer of 1 to 30), a is 10 to 30, and b is 17 to 61.

Abstract: A method of servicing a wellbore comprising contacting a wellbore servicing composition with a rheology modifying additive wherein the rheology modifying additive comprises a gum and a polymeric material. A method of cementing in a subterranean formation comprising providing a sealant composition comprising cement, water, and a rheology modifying additive wherein the rheology modifying additive comprises a gum and an anionic polymer, placing the composition in the subterranean formation, and allowing the cement composition to set therein.

Abstract: Curable multicomponent dental material, including a first paste, which contains (i) one or more acid group-free radically polymerizable monomers and (ii) basic filler, and a second paste, which contains (iii) one or more acid group-containing radically polymerizable monomers and (iv) non-basic filler, wherein the multicomponent dental material contains at least one initiator (v) for radical polymerization in at least paste (A) or (B).