Casting materials

Details Casting materials Casting materials

2011-06-14

2011-06-14

Lin, Kuang (Department: 1735)

Metal founding

Process

Shaping a forming surface

C164S034000, C164S045000, C164S235000

Reexamination Certificate

active

07958932

ABSTRACT:
A foam material comprises a liquid polymer and a liquid isocyanate which is mixed to make a solution that is poured, injected or otherwise deposited into a corresponding mold. A reaction from the mixture of the liquid polymer and liquid isocyanate inside the mold forms a thermally collapsible foam structure having a shape that corresponds to the inside surface configuration of the mold and a skin that is continuous and unbroken. Once the reaction is complete, the foam pattern is removed from the mold and may be used as a pattern in any number of conventional casting processes.

REFERENCES:
patent: 3747663 (1973-07-01), Taylor
patent: 4240492 (1980-12-01), Edwards et al.
patent: 4397247 (1983-08-01), Lemelson
patent: 4660623 (1987-04-01), Ashton
patent: 4877078 (1989-10-01), Wittmoser
patent: 4982781 (1991-01-01), Carpenter et al.
patent: 5002475 (1991-03-01), Graefe
patent: 5735336 (1998-04-01), Oti
patent: 6481490 (2002-11-01), Vihtelic et al.
patent: 6901989 (2005-06-01), Sargent et al.
patent: 2004/0087754 (2004-05-01), Foley et al.

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