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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 9598606 B1

PDFFull Text
Date of Patent:
Mar. 21, 2017

Filed:

Dec. 22, 2015

Methods of producing polyurethane three-dimensional objects from materials having multiple mechanisms of hardening

Applicant:

Carbon3d, Inc., Redwood City, CA (US);

Inventors:

Jason P. Rolland, San Carlos, CA (US);

Kai Chen, Sunnyvale, CA (US);

Justin Poelma, Goleta, CA (US);

James Goodrich, Phoenix, AZ (US);

Robert Pinschmidt, Carrboro, NC (US);

Joseph M. DeSimone, Los Gatos, CA (US);

Lloyd M. Robeson, Macungie, PA (US);

Assignee:

Carbon, Inc., Redwood City, CA (US);

Attorney:

Myers Bigel, P.A.

Primary Examiner:

Leo B Tentoni

Int. Cl.
CPC ...
B29C 41/02 (2006.01); B29C 71/02 (2006.01); B29C 71/04 (2006.01); C09D 175/08 (2006.01); G03F 7/00 (2006.01); B29C 67/00 (2006.01); B29D 11/00 (2006.01); B29C 35/08 (2006.01); C08K 3/00 (2006.01); C08K 5/00 (2006.01); C08L 75/04 (2006.01); C09D 135/02 (2006.01); C09D 175/04 (2006.01); B33Y 10/00 (2015.01); B33Y 70/00 (2015.01); B29K 75/00 (2006.01); B29K 105/04 (2006.01); B29L 11/00 (2006.01); B29L 31/10 (2006.01); B29K 105/00 (2006.01); B29K 105/16 (2006.01); B29K 509/00 (2006.01); B33Y 80/00 (2015.01); B29L 31/00 (2006.01);
U.S. Cl.
CPC ...
C09D 175/08 (2013.01); B29C 35/0805 (2013.01); B29C 67/0062 (2013.01); B29C 67/0066 (2013.01); B29C 67/0081 (2013.01); B29D 11/00009 (2013.01); B29D 11/00663 (2013.01); C08K 3/0008 (2013.01); C08K 3/0033 (2013.01); C08K 5/0008 (2013.01); C08K 5/0041 (2013.01); C08L 75/04 (2013.01); C09D 135/02 (2013.01); C09D 175/04 (2013.01); G03F 7/00 (2013.01); B29C 2035/0827 (2013.01); B29C 2035/0855 (2013.01); B29K 2075/00 (2013.01); B29K 2075/02 (2013.01); B29K 2105/0002 (2013.01); B29K 2105/0058 (2013.01); B29K 2105/043 (2013.01); B29K 2105/16 (2013.01); B29K 2509/00 (2013.01); B29L 2011/00 (2013.01); B29L 2011/0016 (2013.01); B29L 2011/0075 (2013.01); B29L 2031/001 (2013.01); B29L 2031/10 (2013.01); B33Y 10/00 (2014.12); B33Y 70/00 (2014.12); B33Y 80/00 (2014.12);
Abstract

A method of forming a three-dimensional object of polyurethane, polyurea, or copolymer thereof is carried out by: (a) providing a carrier and an optically transparent member having a build surface, the carrier and the build surface defining a build region therebetween; (b) filling the build region with a polymerizable liquid, the polymerizable liquid including at least one of: (i) a blocked or reactive blocked prepolymer, (ii) a blocked or reactive blocked diisocyanate, or (iii) a blocked or reactive blocked diisocyanate chain extender; (c) irradiating the build region with light through the optically transparent member to form a solid blocked polymer scaffold and advancing the carrier away from the build surface to form a three-dimensional intermediate having the same shape as, or a shape to be imparted to, the three-dimensional object, with the intermediate containing the chain extender; and then (d) heating or microwave irradiating the three-dimensional intermediate sufficiently to form from the three-dimensional intermediate the three-dimensional object of polyurethane, polyurea, or copolymer thereof.

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