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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 10174183 B1

PDFFull Text
Date of Patent:
Jan. 08, 2019

Filed:

Mar. 09, 2015

Organic binder, granular material, three-dimensional lamination-shaped mold manufacturing apparatus, and three-dimensional lamination-shaped mold manufacturing method

Applicant:

Technology Research Association for Future Additive Manufacturing, Tokyo, JP;

Inventors:

Yasuhiro Nagai, Takasaki, JP;

Kosuke Takeshita, Takasaki, JP;

Yoshikazu Ooba, Yokohama, JP;

Satoshi Imamura, Tsukuba, JP;

Toshimitsu Okane, Tsukuba, JP;

Assignee:

TECHNOLOGY RESEARCH ASSOCIATION FOR FUTURE ADDITIVE MANUFACTURING, Tokyo, JP;

Attorney:

Ladas & Parry LLP

Primary Examiner:

Mary Lynn F Theisen

Int. Cl.
CPC ...
B22C 1/22 (2006.01); B22C 9/02 (2006.01); B22C 9/12 (2006.01); C08K 9/04 (2006.01); B29C 64/165 (2017.01); B33Y 10/00 (2015.01); B33Y 30/00 (2015.01); B33Y 70/00 (2015.01); B29B 15/10 (2006.01); B29C 33/38 (2006.01); C03C 1/02 (2006.01); C03C 8/02 (2006.01); C03C 8/14 (2006.01); C09D 161/06 (2006.01); C09D 171/14 (2006.01); B29K 105/16 (2006.01); B29K 509/00 (2006.01);
U.S. Cl.
CPC ...
C08K 9/04 (2013.01); B22C 1/224 (2013.01); B22C 1/2253 (2013.01); B22C 9/02 (2013.01); B22C 9/12 (2013.01); B29B 15/105 (2013.01); B29C 33/3807 (2013.01); B29C 33/3842 (2013.01); B29C 64/165 (2017.08); C03C 1/026 (2013.01); C03C 8/02 (2013.01); C03C 8/14 (2013.01); C09D 161/06 (2013.01); C09D 171/14 (2013.01); B29K 2105/16 (2013.01); B29K 2509/00 (2013.01); B29K 2995/0096 (2013.01);
Abstract

In order to well perform recoating regardless of the type of granular material and reuse a refractory aggregate in an unprinted portion without any regeneration process in the manufacture of a three-dimensional lamination-shaped mold, this invention provides a granular material for use in shaping a three-dimensional laminated mold, which is coated with an acid as a catalyst which activates and cures an organic binder for binding the granular material. The acid contains at least one of sulfuric acid, phosphoric acid, a sulfonic acid and a carboxylic acid, and is one of a mixture of sulfuric acid and another acid, phosphoric acid only, a mixture of phosphoric acid and another acid, sulfonic acid only, a mixture of sulfonic acid and another acid and a mixture of a carboxylic acid and another acid.

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