AQUEOUS GEL-FILLED THERMOPLASTIC PATTERN-FORMING COMPOSITIONS AND RELATED METHODS

摘要

Improved thermoplastic pattern-forming compositions for investment casting processes. The compositions comprise a blend of a thermoplastic pattern-forming material and from about 5 to about 70 % by weight of an aqueous gel that is substantially uniformly dispersed throughout the thermoplastic pattern-forming composition. The aqueous gel comprises water and a gellant. The thermoplastic composition may also contain another component in the form of a filler material.