Patent ID: 6616885
Filing Date: 2003-09-09
Classification: B29C,B29K

Abstract:
In a manufacturing method comprising the steps of forming at first solidified wax layer of a desired shape; depositing onto the first solidified wax layer at least one layer of a liquid resin formulation; solidifying the layer of liquid resin formulation; depositing a second wax layer onto the combination of the first solidified wax layer and the layer of solidified resin formulation; solidifying the second wax layer; and separating the solidified resin formulation from said first and second wax layers, the improvement comprising said step of depositing the liquid resin formulation including deposition of at least one monofunctional water soluble vinyl or acrylic monomer in combination with a low molecular weight aliphatic polymer having acrylic or methacrylic acid functionality.