Method for making hard mold

Details Method for making hard mold Method for making hard mold

2011-08-16

2011-08-16

Del Sole, Joseph S (Department: 1743)

Plastic article or earthenware shaping or treating: apparatus

Preform reshaping or resizing means: or vulcanizing means...

Surface deformation means only

C249S114100, C249S115000, C249S134000, C106S038200, C264S219000, C264S293000

Reexamination Certificate

active

07997889

ABSTRACT:
A hard mold and method of preparing the mold is disclosed. The hard mold is designed for manufacturing articles having various shapes and patterns. The shaping mold includes a layer of hardened material provided over the entire surface of the selected master. The inventor has found that a polyurea coating or other polyurethane hybrid is preferred. Once the layer of hardened material has dried, the surface of the hardened material is sanded with a 20-40 grit sandpaper and a layer of polyester resin is then applied to the layer of hardened material. Once the polyester resin is applied, multiple layers of vinyl ester are applied to the polyester resin to prevent the polyester resin from shrinking. In the preferred embodiment, the application includes at least three (3) layers of vinyl ester.

REFERENCES:
patent: 3427689 (1969-02-01), Windecker
patent: 3615071 (1971-10-01), Harper
patent: 5489082 (1996-02-01), Imataki et al.
patent: 5604019 (1997-02-01), Bland et al.
patent: 5912081 (1999-06-01), Negele et al.
patent: 6372323 (2002-04-01), Kobe et al.
patent: 6523804 (2003-02-01), Blom et al.
patent: 2002/0090500 (2002-07-01), Martino
patent: 2003/0047836 (2003-03-01), Rickner et al.
patent: 2003/0180521 (2003-09-01), Iijima
patent: 2004/0005436 (2004-01-01), Mori et al.
patent: 2005/0153107 (2005-07-01), Iijima
patent: 2007/0092699 (2007-04-01), Luong et al.
patent: 2008/0061214 (2008-03-01), Lee et al.
patent: 03-114575 (1991-05-01), None

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