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Abstract

A method for preparing plastic injection mold inserts capable of forming a three-dimensional article in a plastic injection molding process. The method includes (a) forming a master mold insert having a recess therein which has a shape which is complementary to at least a portion of the shape of the three-dimensional article; (b) preparing a temporary reverse mold of the master mold insert; (c) positioning a metal gate in the reverse mold adjacent to and in contact with the article form; (d) introducing a hardenable plastic resin into the reverse mold; (e) allowing the resin to harden to form a mold insert; and (f) removing the mold insert from the reverse mold.

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First Claim