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)] | 7 Claims |
1. A method comprising:
employing 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;
casting in the empty volume between the first and second pattern layers a second polymeric material to cast a complex-shaped 3D object identical in shape to the empty volume between the first and second pattern layers;
applying radiation to cure the first and second polymeric materials; and
wherein 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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