Abstract: A method of preparing fiber sheet molding compounds with a fabric of continuous fiber reinforcement that can be molded under low pressures and temperatures to provide thermoset articles, wherein liquid reactive components are slowly absorbed in solid acrylic resin. The acrylic resin functions as a thickener which delays the viscosity build allowing the fabric of continuous fiber reinforcement to be incorporated before molding.

Abstract: A method of preparing thickened compositions which can be molded under low pressures and temperatures to provide thermoset articles, wherein liquid reactive components are slowly absorbed in solid thermoplastic elastomer thickeners such as thermoplastic ionomers and acrylic block copolymers. The thickener delays the viscosity build, allowing fiber reinforcement and other fillers to be incorporated, if desired, before molding. The molding composition is well suited for use in dentistry and other fields where small amounts or molding composition are used occasionally.

Abstract: A method of preparing thickened compositions which can be molded under low pressures and temperatures to provide thermoset articles, wherein liquid reactive components are slowly absorbed in solid thermoplastic elastomer thickeners such as thermoplastic ionomers and acrylic block copolymers. The thickener delays the viscosity build, allowing fiber reinforcement and other fillers to be incorporated, if desired, before molding. The molding composition is well suited for use in dentistry and other fields where small amounts or molding composition are used occasionally.

Abstract: A method of preparing fiber sheet molding compounds with a fabric of continuous fiber reinforcement that can be molded under low pressures and temperatures to provide thermoset articles, wherein liquid reactive components are slowly absorbed in solid acrylic resin. The acrylic resin functions as a thickener which delays the viscosity build allowing the fabric of continuous fiber reinforcement to be incorporated before molding.

Abstract: A method of preparing fiber reinforced acrylic thickened compositions which can be molded under low pressures and temperatures to provide thermoset articles, wherein liquid reactive components are slowly absorbed in high molecular weight solid acrylic resin in the form of large particles. The acrylic resin functions as a thickener which delays the viscosity build allowing fiber reinforcement to be incorporated before molding. The molding composition is well suited for use in dentistry and other fields where small amounts or molding composition are used occasionally.

Abstract: A fiber reinforced acrylic molding composition is provided which can be molded under low pressures and temperatures to provide thermoset articles. The molding composition can be prepared before use and is shelf stable. The molding composition contains liquid reactive components and a high molecular weight solid acrylic resin which is amorphous and thermoplastic and in the form of large particles. These features enable the solid acrylic resin to slowly absorb the liquid reactive component. The acrylic resin functions as a thickener which delays the viscosity build allowing fiber reinforcement to be incorporated before molding. The molding composition is well suited for use in dentistry and other fields where small amounts or molding composition are used occasionally.