Abstract: An electrically conductive additive system comprising carbon nanofibers and, optionally, electrically conductive particulate material mixed in a liquid component. The carbon nanofibers can be characterized by having a diameter between about 70 to about 200 nanometers, a length between about 50 to about 100 microns, and graphitic planes having a stacked cone-type structure.

Abstract: An electrically conductive additive system comprising carbon nanofibers and, optionally, electrically conductive particulate material mixed in a liquid component. The carbon nanofibers can be characterized by having a diameter between about 70 to about 200 nanometers, a length between about 50 to about 100 microns, and graphitic planes having a stacked cone-type structure.

Abstract: An electrically conductive additive system comprising carbon nanofibers and, optionally, electrically conductive particulate material mixed in a liquid component. The carbon nanofibers can be characterized by having a diameter between about 70 to about 200 nanometers, a length between about 50 to about 100 microns, and graphitic planes having a stacked cone-type structure.

Abstract: A process for preparing a pigmented thermoplastic polymer composition which is useful as a low profile additive composition for thermosetting resins comprises the steps of(A) selecting at least one thermoplastic polymer having a refractive index which is within about 0.06 units of the refractive index of the thermosetting resin;(B) preparing a mixture of said thermoplastic polymer and at least one color pigment, dye or mixture thereof under high shear in a high-intensity mixer; and(C) forming a slurry comprising said mixture obtained in step (B) in at least one liquid copolymerizable monomer containing at least one CH.sub.2 .dbd.C< group. In a preferred embodiment, at least one surfactant is included in the slurry obtained in step (C) in an amount sufficient to enhance the uniformity of the pigmentation of a cured composite produced from the thermosetting resin composition and a low profile additive composition.

Abstract: This invention relates to a process for preparing a pigmented thermoplastic polymer composition which is useful as a low profile additive composition for thermosetting resins. The process includes the steps of(A) selecting at least on thermoplastic polymer having a refractive index which is within about 0.06 units of the refractive index of the thermosetting resin;(B) preparing a mixture of said thermoplastic polymer and at least one color pigment, dye or mixture thereof under high shear in a high-intensity mixer; and(C) forming a slurry containing said mixture obtained in step (B) in at least one liquid copolymerizable monomer containing at least one CH.sub.2 .dbd.C<group. In a preferred embodiment, at least one surfactant is included in the slurry obtained in step (C) in an amount sufficient to enhance the uniformity of the pigmentation of a cured composite produced from the thermosetting resin composition and a low profile additive composition.

Abstract: Compositions are described which are useful for stabilizing organic materials normally subject to deterioration caused by ultraviolet light. The compositions comprise mixtures comprising(A) at least one hindered amine light stabilizer,(B) at least one formation characterized by the Formulae I and II as defined more fully in the specification and claims, and(c) at least one hindered phenolic antioxidant compound.In addition to the above components, the compositions of the present invention also may contain at least one pigment normally used in the polymer materials. When organic materials normally subject to deterioration caused by ultraviolet light are modified to include an ultraviolet stabilizing effective amount of the compositions of the invention, the organic materials exhibit improved resistance to ultraviolet light degradation which generally is evidenced by improved color and gloss retention.

Abstract: A method is described for improving the compatibility of pigments and, optionally, stabilizers in the polyol-containing component of two- and three-component polyurethane systems. The method comprises(A) preparing a dispersion comprising at least one pigment in at least one glycol, and(B) blending said dispersion with the polyol component.In a preferred embodiment, the glycol of the dispersion is identical to the glycol used as the chain extender in the polyol component of the urethane system. The pigment dispersions also may contain at least one stabilizer for the urethane including heat stabilizers and ultraviolet light stabilizers. Compositions are described which comprise at least one pigment and at least one heat and/or ultraviolet light stabilizing compound dispersed in a glycol. Such dispersions exhibit improved compatibility with the polyol component thereby minimizing settling of the pigment resulting in a reduction in the clogging of filters used in the urethane reaction.