Abstract: A novel phenalkamine composition capable of emulsifying asphalt to form a stable asphalt emulsion composition; a curable asphalt composition comprising such asphalt emulsion composition and a waterborne epoxy resin showing improved pull-off adhesion strength from a substrate; and a process of preparing the phenalkamine composition.

Abstract: A process for producing a proppant particulate substrate having a coating layer thereon including the step of blending a proppant particulate substrate with a powder coating composition at a temperature sufficient to cause the powder coating composition to coat the proppant particulate substrate with a powder coating; and a proppant particulate substrate coated by such a process.

Abstract: A curable composition comprising a blend of: a) an epoxy resin; and b) a hardener comprising a polyfunctional amine is disclosed. The curable composition can be used in a variety of applications including, but not limited to coatings, civil engineering, flooring, composites, adhesives, and electrical laminates.

Abstract: A curable epoxy resin composition comprising (a) at least one epoxy resin; (b) at least one curing agent; and (c) at least one high molecular weight poly(propylene oxide) poiyol toughening agent; and a process for preparing the curable epoxy resin composition.

Abstract: A windmill blade which comprises reinforcing fibers in a toughened resin matrix. The resin matrix is made from a composition which comprises (a) one or more epoxy resins and/or one or more epoxy vinyl ester resins, (b) one or more reactive diluents, and (c) at least one amphiphilic block copolymer. The amphiphilic block copolymer comprises at least two different polyether blocks and is present in the composition in an amount of from about 0.5% to about 10% by volume, based on the total volume of the matrix composition.

Abstract: A curable composition for polymer concrete including (A) at least one epoxy resin composition comprising (A1) at least one epoxy resin, and (A2) at least one divinylarene dioxide; and (B) at least one hardener composition; wherein the divinylarene dioxide is present in the epoxy resin composition in a sufficient concentration such that the divinylarene dioxide reduces the viscosity of the curable composition and provides the necessary properties for cured polymer concrete product made from the curable composition. The divinylarene dioxide reduces the viscosity of the curable composition and, at the same time, provides the necessary properties for polymer concrete applications; and the divinylarene dioxide helps to increase heat deflection temperature (HDT) of the polymer concrete and improves the dimensional stability of a large polymer concrete part without sacrificing any of the other properties of the polymer concrete.

Abstract: A hardener composition for epoxy resins, the hardener composition including a mixture of 1,3-bis(aminomethyl)cyclohexane and 1,4-bis(aminomethyl)cyclohexane. A prepolymer hardener composition for epoxy resins, the prepolymer hardener composition comprising the reaction product of an epoxy with a mixture of 1,3-bis(aminomethyl)cyclohexane; and 1,4-bis(aminomethyl)cyclohexane.

Abstract: Curable epoxy resin compositions, cured epoxy resin compositions, and processes of forming the same, including at least one epoxy resin, at least one sterically hindered amine curing agent and at least one non-sterically hindered amine curing agent which provides toughness properties to the curable composition and resultant cured product made from the curable composition.

Abstract: A structural composite uses a block copolymer toughening agent to increase the fracture resistance (toughness) of the structural composite. The structural composite comprises (i) a carbon fiber reinforcing material and (ii) a thermosettable resin composition; wherein the thermosettable resin composition comprises (a) a thermosettable resin and (b) at least one block copolymer toughening agent.

Abstract: A windmill blade which comprises reinforcing fibers in a toughened resin matrix. The resin matrix is made from a composition which comprises (a) one or more epoxy resins and/or one or more epoxy vinyl ester resins, (b) one or more reactive diluents, and (c) at least one amphiphilic block copolymer. The amphiphilic block copolymer comprises at least two different polyether blocks and is present in the composition in an amount of from about 0.5% to about 10% by volume, based on the total volume of the matrix composition.

Abstract: An improved process for making fiber reinforced epoxy plastic structure by a process that includes the steps of : forming a structure of the reinforcing fibers (14) an epoxyresin composition (15) that includes a liquid epoxy resin and an epoxy resin hardener; and heating the structure to cure the epoxy resin composition. The epoxy resin composition including more than one and one half percent of mono hydrolyzed epoxy resin and an epoxy resin hardener so that the viscosity of the epoxy resin composition during the heating step is in a range that results in a degree of impregnation of the void space between the reinforcing fibers by the cured epoxy resin composition that is greater than ninety volume percent of the void space.

Abstract: A process for producing a proppant particulate substrate having a coating layer thereon including the step of blending a proppant particulate substrate with a powder coating composition at a temperature sufficient to cause the powder coating composition to coat the proppant particulate substrate with a powder coating; and a proppant particulate substrate coated by such a process.

Abstract: A coated proppant comprising a proppant particulate substrate and a coating layer on the substrate. The coating layer is formed from a composition comprising a resin, a curing agent, an adhesion promoter, and a toughening agent.

Abstract: Powder coating compositions that have a low melt viscosity contain:(1) 20 to 80 parts of a multifunctional epoxy resin component;(2) 80 to 20 parts of an essentially linear acid-terminated polyester resin component.