Abstract: A polyurea additive is provided that strengthens a given base sheet molding composition (SMC) An isocyanate containing species and an amine containing species are introduced into an uncured polymeric resin of a sheet molding compound (SMC) under conditions suitable for the formation of a polyurea polymer network. Upon cure of the SMC base resin, an interpenetrating network is formed that is stronger than the base SMC absent the polyurea. As a result, an article is formed from the SMC that is stronger at the same dimensions than a conventional article or thinned to achieve the same properties to obtain a lightweight article compared to that formed from conventional SMC. The properties of the article are also attractive relative to aluminum for the formation of vehicle body and exterior panels.

Abstract: A process for debundling a carbon fiber tow into dispersed chopped carbon fibers suitable for usage in molding composition formulations is provided. A carbon fiber tow is fed into a die having fluid flow openings, through which a fluid impinges upon the side of the tow to expand the tow cross sectional area. The expanded cross sectional area tow extends from the die into the path of a conventional fiber chopping apparatus to form chopped carbon fibers, or through contacting tines of a mechanical debundler. Through adjustment of the relative position of fluid flow openings relative to a die bore through which fiber tow passes, the nature of the fluid impinging on the tow, the shape of the bore, in combinations thereof, an improved chopped carbon fiber dispersion is achieved. The chopped carbon fiber obtained is then available to be dispersed in molding composition formulations prior to formulation cure.

Abstract: A vehicle component is provided that includes a first cured layer of a molding composition having a predominant fiber filler chopped glass fibers, a second cured layer of molding composition having a predominant fiber filler chopped carbon fibers, and an elastomeric bonding agent with elongation properties configured to accommodate the differential coefficients of linear thermal expansion between the first cured layer and the second cured layer. The second cured layer is substantially devoid of glass fiber. The bonding agent is an elastomeric adhesive, which is operative from ?40 to 205° C. The first cured layer forms an outer skin layer surface of a vehicle and the second cured layer forms an interior layer, where the outer skin layer surface has a class-A finish.

Abstract: A process is provided for molding a resin matrix around a distribution of well distributed epoxy coated glass fibers to produce an article. The article is mass produced by the molding process based on a one or more layer structure, with an outer panel having a high degree of surface smoothness common to automotive body panels and a comparatively high tensile strength joinder thereto. The epoxy coated glass fibers are present in a single panel of an article or all such panels of a multiple layer article. The epoxy coated glass fibers can be present in an articles in a form of: chopped glass fibers that are intermixed and vary in orientation, a woven roving containing predominately epoxy glass fibers with carbon fibers dispersed there through, or non-woven fiber mats.

Abstract: A molding composition formulation is provided that includes polypropylene, glass fiber, and a cellulosic powder used as a filler. The filler may be at least one of coconut shell powder, walnut shell powder, or rice hull. The molding composition formulation may further include natural cellulosic fiber illustratively including at least one of coconut fibers, bamboo fibers, sugar cane fibers, or banana skin fibers. The molding composition may be compression moldable long fiber thermoplastic (LFTD). The molding composition formulation may be used in thermoforming. In a specific embodiment of the molding composition, the formulation proportion of the polypropylene is 50 to 60 percent of the formulation; and the polypropylene substitute is 5 to 15 percent of the formulation, and in an alternative embodiment, the formulation proportion of the polypropylene is 40 to 80 percent, the cellulosic powder is 1 to 25 percent, and the glass fiber is 1 to 50 percent.

Abstract: A vehicle component is provided that includes a first cured layer of a molding composition having a predominant fiber filler chopped glass fibers, a second cured layer of molding composition having a predominant fiber filler chopped carbon fibers, and an elastomeric bonding agent with elongation properties configured to accommodate the differential coefficients of linear thermal expansion between the first cured layer and the second cured layer. The second cured layer is substantially devoid of glass fiber. The bonding agent is an elastomeric adhesive, which is operative from ?40 to 205° C. The first cured layer forms an outer skin layer surface of a vehicle and the second cured layer forms an interior layer, where the outer skin layer surface has a class-A finish.

Abstract: A vehicle component is provided that includes a first cured layer of a molding composition having a predominant fiber filler chopped glass fibers, a second cured layer of molding composition having a predominant fiber filler chopped carbon fibers, and a bonding agent with elongation properties configured to accommodate the differential coefficients of linear thermal expansion between the first cured layer and the second cured layer. The second cured layer is substantially devoid of glass fiber. The bonding agent is an elastomeric adhesive, which is operative from ?40 to 205° C. The first cured layer forms an outer skin layer surface of a vehicle and the second cured layer forms an interior layer, where the outer skin layer surface has a class-A finish.

Abstract: A process for debundling a carbon fiber tow into dispersed chopped carbon fibers suitable for usage in molding composition formulations is provided. A carbon fiber tow is fed into a die having fluid flow openings, through which a fluid impinges upon the side of the tow to expand the tow cross sectional area. The expanded cross sectional area tow extends from the die into the path of a conventional fiber chopping apparatus to form chopped carbon fibers, or through contacting tines of a mechanical debundler. Through adjustment of the relative position of fluid flow openings relative to a die bore through which fiber tow passes, the nature of the fluid impinging on the tow, the shape of the bore, in combinations thereof, an improved chopped carbon fiber dispersion is achieved. The chopped carbon fiber obtained is then available to be dispersed in molding composition formulations prior to formulation cure.

Abstract: A process is provided for molding a resin matrix around a distribution of well distributed epoxy coated glass fibers to produce an article. The article is mass produced by the molding process based on a one or more layer structure, with an outer panel having a high degree of surface smoothness common to automotive body panels and a comparatively high tensile strength joinder thereto. The epoxy coated glass fibers are present in a single panel of an article or all such panels of a multiple layer article. The epoxy coated glass fibers can be present in an articles in a form of: chopped glass fibers that are intermixed and vary in orientation, a woven roving containing predominately epoxy glass fibers with carbon fibers dispersed there through, or non-woven fiber mats.

Abstract: A polyurea additive is provided that strengthens a given base sheet molding composition (SMC) An isocyanate containing species and an amine containing species are introduced into an uncured polymeric resin of a sheet molding compound (SMC) under conditions suitable for the formation of a polyurea polymer network. Upon cure of the SMC base resin, an interpenetrating network is formed that is stronger than the base SMC absent the polyurea. As a result, an article is formed from the SMC that is stronger at the same dimensions than a conventional article or thinned to achieve the same properties to obtain a lightweight article compared to that formed from conventional SMC. The properties of the article are also attractive relative to aluminum for the formation of vehicle body and exterior panels.

Abstract: A process for debundling a carbon fiber tow into dispersed chopped carbon fibers suitable for usage in molding composition formulations is provided. A carbon fiber tow is fed into a die having fluid flow openings, through which a fluid impinges upon the side of the tow to expand the tow cross sectional area. The expanded cross sectional area tow extends from the die into the path of a conventional fiber chopping apparatus to form chopped carbon fibers, or through contacting tines of a mechanical debundler. Through adjustment of the relative position of fluid flow openings relative to a die bore through which fiber tow passes, the nature of the fluid impinging on the tow, the shape of the bore, in combinations thereof, an improved chopped carbon fiber dispersion is achieved. The chopped carbon fiber obtained is then available to be dispersed in molding composition formulations prior to formulation cure.

Abstract: A molded article is provided that has a resin matrix having a surface, the resin matrix formed from cross-linked polyester resin or vinyl-ester resin. Glass fibers are crossed linked to the resin matrix via a silane coupling agent reactive with the matrix. A molded article is provided that has a resin matrix having a surface, the resin matrix formed from cross-linked polyester resin or vinyl-ester resin. Glass fibers each covalently bonded to at least one microspheroid matrix via a silane coupling agent reactive with a surface of the at least one microspheroids are present in increase the fiber pull strength. A sizing composition for treating glass fibers is also provided for use in such articles.

Abstract: A molded article is provided that includes a resin matrix having a surface, the resin matrix formed from cross-linked polyester resin or vinyl-ester resin. Microspheroids having a mean diameter of from 16 to 45 microns are embedded in the resin matrix. The microspheroids having a specific gravity of between 0.19 and 0.6 and an isotactic crush strength of greater than or equal to 2750 kilopascals (kPa). Surface activating agent alkoxysilane molecules are covalently bonded to each of the microspheroids. Filler particles are also present in the resin matrix. Fibers are also present in the resin matrix. The fibers being natural fibers, glass fibers, carbon fibers, or a combination thereof. The article has a specific gravity of between 0.80 and 1.25.

Abstract: A molding composition formulation is provided of a thermoset cross-linkable polyol having unsaturated backbone comprising the structure defined by formula 1: (1) a reinforcing filler; and optionally, a flame retardant, a UV stabilizer or a composition comprising one of the foregoing.

Abstract: A molding composition formulation is provided that includes polypropylene, glass fiber, and a cellulosic powder used as a filler. The filler may be at least one of coconut shell powder, walnut shell powder, or rice hull. The molding composition formulation may further include natural cellulosic fiber illustratively including at least one of coconut fibers, bamboo fibers, sugar cane fibers, or banana skin fibers. The molding composition may be compression moldable long fiber thermoplastic (LFTD). The molding composition formulation may be used in thermoforming. In a specific embodiment of the molding composition, the formulation proportion of the polypropylene is 50 to 60 percent of the formulation; and the polypropylene substitute is 5 to 15 percent of the formulation, and in an alternative embodiment, the formulation proportion of the polypropylene is 40 to 80 percent, the cellulosic powder is 1 to 25 percent, and the glass fiber is 1 to 50 percent.

Abstract: A molding composition formulation is provided of a thermoset cross-linkable polyol having unsaturated backbone comprising the structure defined by formula 1: (1) a reinforcing filler; and optionally, a flame retardant, a UV stabilizer or a composition comprising one of the foregoing.

Abstract: A molded article is provided that includes a resin matrix having a surface, the resin matrix formed from cross-linked polyester resin or vinyl-ester resin. Microspheroids having a mean diameter of from 16 to 45 microns are embedded in the resin matrix. The microspheroids having a specific gravity of between 0.19 and 0.6 and an isotactic crush strength of greater than or equal to 2750 kilopascals (kPa). Surface activating agent alkoxysilane molecules are covalently bonded to each of the microspheroids. Filler particles are also present in the resin matrix. Fibers are also present in in the resin matrix. The fibers being natural fibers, glass fibers, carbon fibers, or a combination thereof. The article has a specific gravity of between 0.80 and 1.25.

Abstract: A molded article is provided that has a resin matrix having a surface, the resin matrix formed from cross-linked polyester resin or vinyl-ester resin. Glass fibers are crossed linked to the resin matrix via a silane coupling agent reactive with the matrix. A molded article is provided that has a resin matrix having a surface, the resin matrix formed from cross-linked polyester resin or vinyl-ester resin. Glass fibers each covalently bonded to at least one microspheroid matrix via a silane coupling agent reactive with a surface of the at least one microspheroids are present in increase the fiber pull strength. A sizing composition for treating glass fibers is also provided for use in such articles.

Abstract: A process for debundling a carbon fiber tow into dispersed chopped carbon fibers suitable for usage in molding composition formulations is provided. A carbon fiber tow is fed into a die having fluid flow openings, through which a fluid impinges upon the side of the tow to expand the tow cross sectional area. The expanded cross sectional area tow extends from the die into the path of a conventional fiber chopping apparatus to form chopped carbon fibers, or through contacting tines of a mechanical debundler. Through adjustment of the relative position of fluid flow openings relative to a die bore through which fiber tow passes, the nature of the fluid impinging on the tow, the shape of the bore, in combinations thereof an improved chopped carbon fiber dispersion is achieved. The chopped carbon fiber obtained is then available to be dispersed in molding composition formulations prior to formulation cure.