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.

Date of Patent:
May. 01, 2012

Filed:

Jan. 10, 2008
Applicants:

Amir Alam, Milwaukee, WI (US);

James F. Bredt, Watertown, MA (US);

Nanette Clark, North Andover, MA (US);

Mary Flynn, Littleton, MA (US);

Jean Sprauer, Jamaica Plain, MA (US);

Derek X. Williams, Berwick, ME (US);

Inventors:

Amir Alam, Milwaukee, WI (US);

James F. Bredt, Watertown, MA (US);

Nanette Clark, North Andover, MA (US);

Mary Flynn, Littleton, MA (US);

Jean Sprauer, Jamaica Plain, MA (US);

Derek X. Williams, Berwick, ME (US);

Assignee:

3D Systems, Inc., Rock Hill, SC (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C04B 9/04 (2006.01); C04B 11/00 (2006.01); C04B 28/14 (2006.01);
U.S. Cl.
CPC ...
Abstract

A materials system and methods are provided to enable the formation of articles by three dimensional printing. The materials system includes particulate mixtures having a whitening agent and a solid particulate additive comprising an acid, the latter adapted for modifying a cure rate of an infiltrant. The materials system also includes aqueous fluids including optical brightening agents.


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