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.:
Date of Patent:
Sep. 30, 2014
Filed:
Nov. 11, 2009
Pingfan Wu, Woodbury, MN (US);
Ying-yuh LU, Woodbury, MN (US);
Robin E. Wright, Inver Grove Heights, MN (US);
Robert J. Devoe, Arden Hills, MN (US);
Travis L. Potts, Woodbury, MN (US);
Douglas S. Dunn, Maplewood, MN (US);
Wayne S. Mahoney, St. Paul, MN (US);
Dong-wei Zhu, Shoreview, MN (US);
Pingfan Wu, Woodbury, MN (US);
Ying-Yuh Lu, Woodbury, MN (US);
Robin E. Wright, Inver Grove Heights, MN (US);
Robert J. DeVoe, Arden Hills, MN (US);
Travis L. Potts, Woodbury, MN (US);
Douglas S. Dunn, Maplewood, MN (US);
Wayne S. Mahoney, St. Paul, MN (US);
Dong-Wei Zhu, Shoreview, MN (US);
3M Innovative Properties Company, St. Paul, MN (US);
Abstract
A method for building three-dimensional articles using a thermal polymerization process in provided. The articles are built by using a composition that includes a thermally polymerizable composition, a thermal initiator, and a nonlinear light-to-heat conversion material such as a reverse saturable dye. The article is built by the sequential exposure of adjacent voxels with a laser beam. Microlens arrays can be used to expose more than one voxel at a time.