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:
Jun. 13, 2023

Filed:

Jun. 02, 2021
Applicant:

Massivit 3d Printing Technologies Ltd., Lod, IL;

Inventor:

Shai Garty, Rehovot, IL;

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
B29C 64/124 (2017.01); B29C 64/209 (2017.01); B29C 64/245 (2017.01); B33Y 70/00 (2020.01); B29C 64/393 (2017.01); B29C 33/38 (2006.01); B29C 39/02 (2006.01); B29C 39/34 (2006.01); B29C 64/40 (2017.01); B33Y 10/00 (2015.01); B33Y 30/00 (2015.01); B33Y 50/02 (2015.01); B29C 39/00 (2006.01); B29C 64/241 (2017.01);
U.S. Cl.
CPC ...
B29C 64/124 (2017.08); B29C 33/3842 (2013.01); B29C 39/026 (2013.01); B29C 39/34 (2013.01); B29C 64/209 (2017.08); B29C 64/245 (2017.08); B29C 64/393 (2017.08); B29C 64/40 (2017.08); B33Y 70/00 (2014.12); B29C 33/38 (2013.01); B29C 33/3835 (2013.01); B29C 39/003 (2013.01); B29C 39/006 (2013.01); B29C 64/241 (2017.08); B29C 2033/385 (2013.01); B33Y 10/00 (2014.12); B33Y 30/00 (2014.12); B33Y 50/02 (2014.12);
Abstract

A method employs a first polymeric material to deposit first and second pattern layers laterally shifted from each other such that laterally shifted pattern layers form between them an empty volume with a variable cross-section that varies along with the first and second pattern layers. A second polymeric material is cast in the empty volume between the first and second pattern layers to cast a complex-shaped 3D object identical in shape to the empty volume between the first and second pattern layers. Radiation is applied to cure the first and second polymeric materials. The first polymeric material is a water breakable material composition including acrylamide, methacrylamide, acrylate, acrylic acids, and acrylic acid salts, hydroxy(meth)acrylate, carboxy(meth)acrylate, acrylonitrile, carbohydrate monomers, methacrylate and polyfunctional acrylics.


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