US 11,655,332 B2
Sealed isocyanates
Benjamin R. Lund, Plano, TX (US); and Walter Voit, Richardson, TX (US)
Assigned to Adaptive 3D Technologies, Plano, TX (US); and Board of Regents, The University of Texas System, Austin, TX (US)
Filed by Adaptive 3D Technologies, Plano, TX (US); and Board of Regents, The University of Texas System, Austin, TX (US)
Filed on Nov. 25, 2020, as Appl. No. 17/104,034.
Application 17/104,034 is a continuation of application No. 17/049,046, previously published as PCT/US2019/028382, filed on Apr. 19, 2019.
Claims priority of provisional application 62/660,894, filed on Apr. 20, 2018.
Prior Publication US 2021/0087328 A1, Mar. 25, 2021
This patent is subject to a terminal disclaimer.
Int. Cl. C08G 18/80 (2006.01); B33Y 10/00 (2015.01); B33Y 70/00 (2020.01); B29C 64/153 (2017.01); C08G 18/38 (2006.01); C08G 18/67 (2006.01); C08F 220/12 (2006.01)
CPC C08G 18/80 (2013.01) [B29C 64/153 (2017.08); B33Y 10/00 (2014.12); B33Y 70/00 (2014.12); C08F 220/12 (2013.01); C08G 18/3855 (2013.01); C08G 18/672 (2013.01)] 17 Claims
 
1. A photopolymerizable resin for additive manufacturing comprising:
a blocked isocyanate;
about 0.01-5% by weight of a stabilized thiol; and
at least about 30% by weight of one or more acrylic monomers,
wherein the resin is configured to react by exposure to light to form a cured material,
wherein a layer of the resin about 100 μm thick is configured to form the cured material in no more than 30 seconds,
wherein the cured material has a toughness in the range of about 3-100 MJ/m3 and a strain at break in the range of about 30-1000%.