Abstract: Methods, particles, and devices are disclosed for filtration of oil for use of the oil in the preparation of biodiesel. Disclosed particles may comprise a substantially inert porous particle with a coating comprising a polymer having amine, amino, and/or imine group(s).

Abstract: This invention relates generally to dye-attached and/or surface-modified (e.g. functionalized) pigments. Certain embodiments include pigments formed by attaching a dye to the surface of a metal oxide or semi-metal oxide particle. Other embodiments include surface-modified pigments formed by attaching polymers having amine groups to the surface of a pigment. The surface functionalization of pigment particles with polymers having amine groups may provide the pigment with enhanced water resistance, color-fastness, smudge resistance, and/or compatibility with other materials in a composite or matrix material(s). For example, such functionalized pigments may be used in inks, paints, paper, fabrics, coatings, cosmetics, food, or other composites to provide or adjust hydrophobicity, softness, smoothness, and/or oleophobicity.

Abstract: The invention relates to two products, each of which can be designed to provide either permanent or semi-permanent hair hold. A first product includes two formulations applied to the hair in two separate steps, while a second product includes a single formulation applied to the hair in one step.