Abstract: A sizing composition containing an epoxy resin emulsion, one or more coupling agents, a cationic lubricant, and an acid. The epoxy resin emulsion includes a low molecular weight epoxy and one or more surfactants. The epoxy resin has an epoxy equivalent weight of from 175-225, preferably from 175-190. Optionally, the sizing composition may also contain a non-ionic lubricant, a polyurethane film former, and/or an antistatic agent. The sizing composition may be used to size glass fibers used in filament winding applications to form reinforced composite articles with improved mechanical properties, wet tensile properties, improved resistance to cracking, and improved processing characteristics.

Abstract: A composite material is provided. The composite material includes a continuous roving made from a material selected from a group consisting of natural fibers, mineral fibers, synthetic fibers, kenaf fibers, hemp fibers, carbon fibers, glass fibers, aramid fibers and mixtures thereof impregnated with a water-based matrix binder including gypsum, a polymer and water.

Abstract: Disclosed are a series of composite polymer composite structures formed by the coextrusion of at least two distinct polymeric components. A first polymeric component includes a structural composition and a second polymeric component includes a coating composition. The primary structural frame formed from the structural composition includes at least one longitudinal recess. These recesses may be filled with a third polymeric composition that may include wood byproducts and/or a blowing agent. The first polymeric component may include reinforcing fibers at least partially coated with a size composition that includes a film forming agent, a lubricant, one or more additives, and first and second coupling agents. The additives may be chosen to achieve selective or desired properties in the end product.

Abstract: Disclosed are a series of composite polymer composite structures formed by the coextrusion of at least two distinct polymeric compositions including a structural composition and a coating composition whereby the primary structural frame formed from the structural composition includes at least one, and typically a plurality, of longitudinal recesses or cavities. These recesses or cavities may, in turn, be filled with a third distinct polymeric composition that may include wood byproducts and/or a foaming or blowing agent.

Abstract: A sizing composition containing an epoxy resin emulsion, one or more coupling agents, a cationic lubricant, and an acid. The epoxy resin emulsion includes a low molecular weight epoxy and one or more surfactants. The epoxy resin has an epoxy equivalent weight of from 175-225, preferably from 175-190. Optionally, the sizing composition may also contain a non-ionic lubricant, a polyurethane film former, and/or an antistatic agent. The sizing composition may be used to size glass fibers used in filament winding applications to form reinforced composite articles with improved mechanical properties, wet tensile properties, improved resistance to cracking, and improved processing characteristics.