Composites containing cellulosic pulp fibers and methods of making and using the same

A composite containing cellulosic pulp fibers dispersed in a matrix, wherein said matrix comprises a polymeric material and said cellulosic pulp fibers have an alpha-cellulose purity greater than 80% by weight, said composite contains at least one coupling or compatibilizing agent, and wherein said coupling or compatibilizing agent is selected from the group consisting of titanates, zirconates or mixtures thereof.

A composite containing cellulosic pulp fibers dispersed in a matrix, wherein said matrix comprises a thermoplastic and said cellulosic pulp fibers have an alpha-cellulose purity greater than 80% by weight, wherein said thermoplastic has a melting point greater than 180° C.

A composite containing cellulosic pulp fibers dispersed in a matrix, wherein said matrix comprises a polymeric material and said cellulosic pulp fibers have an alpha-cellulose purity greater than 80% by weight, wherein said polymeric material comprises nylon.

A composite comprising at least 5 wt % fibers dispersed in a matrix comprising a polymeric material, wherein said fibers are not coated with a graft copolymer and said composite has a density less than 2% greater than said polymeric material and a tensile strength 3% greater than the tensile strength of said polymeric material.

A composite granule for injection molding composed of fiber-reinforced thermoplastic material comprising a multiplicity of cellulosic pulp fibers dispersed in a matrix of thermoplastic material, wherein said fibers are not coated with a graft copolymer and said cellulosic pulp fibers have an alpha-cellulose content greater than 80%.

An injection molded product of a fiber-reinforced thermoplastic material comprising a multiplicity of cellulosic pulp fibers dispersed in a matrix of the thermoplastic material, wherein said fibers are not coated with a graft copolymer and said cellulosic pulp fibers have an alpha-cellulose content greater than 80%.