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Title: Casting materials

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.

Inventors:
 [1];  [2];  [2];  [3];  [4]
  1. Xenia, OH
  2. Cincinnati, OH
  3. Lyndurst, OH
  4. Pepper Pike, OH
Issue Date:
Research Org.:
Cleveland Tool and Machine
Sponsoring Org.:
USDOE
OSTI Identifier:
1021891
Patent Number(s):
7958932
Application Number:
12/167,546
Assignee:
Fopat LLC (Dayton, OH)
Patent Classifications (CPCs):
B - PERFORMING OPERATIONS B33 - ADDITIVE MANUFACTURING TECHNOLOGY B33Y - ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
B - PERFORMING OPERATIONS B29 - WORKING OF PLASTICS B29C - SHAPING OR JOINING OF PLASTICS
DOE Contract Number:  
FG36-04GO14332
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE

Citation Formats

Chaudhry, Anil R, Dzugan, Robert, Harrington, Richard M, Neece, Faurice D, and Singh, Nipendra P. Casting materials. United States: N. p., 2011. Web.
Chaudhry, Anil R, Dzugan, Robert, Harrington, Richard M, Neece, Faurice D, & Singh, Nipendra P. Casting materials. United States.
Chaudhry, Anil R, Dzugan, Robert, Harrington, Richard M, Neece, Faurice D, and Singh, Nipendra P. Tue . "Casting materials". United States. https://www.osti.gov/servlets/purl/1021891.
@article{osti_1021891,
title = {Casting materials},
author = {Chaudhry, Anil R and Dzugan, Robert and Harrington, Richard M and Neece, Faurice D and Singh, Nipendra P},
abstractNote = {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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2011},
month = {6}
}

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