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:
Dec. 11, 1990
Filed:
Apr. 13, 1988
Applicant:
Inventors:
Peter Gottschalk, Centerville, OH (US);
Douglas C Neckers, Perrysburg, OH (US);
Gary B Schuster, Champaign, IL (US);
Paul C Adair, Springboro, OH (US);
S Peter Pappas, Fargo, ND (US);
Assignee:
The Mead Corporation, Dayton, OH (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03C / ;
U.S. Cl.
CPC ...
364473 ; 36447408 ; 430170 ; 430270 ; 430927 ;
Abstract
A process for making three dimensional models is disclosed which is characterized in that a photohardenable composition is used which comprises a free radical addition polymerizable or crosslinkable compound and an ionic dye-counter ion compound, said compound being capable of absorbing actinic radiation and producing free radicals which initiate free radical polymerization or crosslinking of said compound.