US 11,926,748 B2
Thermosetting compositions and forming three-dimensional objects therefrom
Paulus Antonius Maria Steeman, Munstergeleen (NL); Marco Marcus Matheus Driessen, Maastricht (NL); and Guido Joseph Elisabeth Hensen, Oirsbeek (NL)
Assigned to STRATASYS, INC., Eden Prairie, MN (US)
Filed by STRATASYS, INC., Eden Prairie, MN (US)
Filed on Oct. 4, 2022, as Appl. No. 17/937,868.
Application 17/937,868 is a continuation of application No. 16/344,510, granted, now 11,492,505, previously published as PCT/EP2017/077779, filed on Oct. 30, 2017.
Claims priority of application No. 16196334 (EP), filed on Oct. 28, 2016; and application No. 16196338 (EP), filed on Oct. 28, 2016.
Prior Publication US 2023/0106589 A1, Apr. 6, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. C08F 2/46 (2006.01); B29C 64/124 (2017.01); B33Y 10/00 (2015.01); B33Y 70/00 (2020.01); C08F 2/50 (2006.01); C08F 290/06 (2006.01); C08G 61/04 (2006.01); C09D 11/101 (2014.01); C09D 11/102 (2014.01); C09D 11/104 (2014.01); C09D 11/107 (2014.01); C09D 11/30 (2014.01); B29C 64/153 (2017.01); B33Y 70/10 (2020.01); G03F 7/038 (2006.01)
CPC C09D 11/101 (2013.01) [B29C 64/124 (2017.08); B33Y 10/00 (2014.12); B33Y 70/00 (2014.12); C08F 290/061 (2013.01); C08F 290/064 (2013.01); C09D 11/102 (2013.01); C09D 11/104 (2013.01); C09D 11/107 (2013.01); C09D 11/30 (2013.01); B29C 64/153 (2017.08); B33Y 70/10 (2020.01); G03F 7/0388 (2013.01)] 15 Claims
 
1. A composition for forming a three-dimensional object via an additive fabrication process comprising:
a. from 30 to 100 wt %, based on the total weight of the composition, of a first network-forming component comprising:
i. from 19.95 to 80 wt %, based on the total weight of the first network-forming component, of a first oligomer comprising a backbone comprising a polyepoxide based on Bisphenol A, F, or S, a polyepoxide based on hydrogenated Bisphenol A, F, or S, a polycarbonate, or a polyimide, and having a number average of at least 2 polymerizable groups, wherein the polymerizable groups comprise acrylate, methacrylate, itaconate, vinyl ether, allyl ether, maleate, or fumarate, and wherein the first oligomer has a number average molecular weight of from 800 to 10000 g/mol and a Tg of 25° C. or more;
ii. from 19.95 to 80 wt %, based on the total weight of the network-forming component, of one or more first network monomers having a number average of 0.95 to 1.1 polymerizable groups that are able to (co)polymerize with the polymerizable groups of the first oligomer, wherein a linear polymer formed from the one or more first network monomers has a Tg of 25° C. or more;
iii. from 0.05 to 5 wt %, based on the total weight of the first network-forming component, of one or more first network initiators capable of initiating the polymerization of the first oligomer and the first network monomer; and
iv. optionally, up to 15 wt % of one or more further first network monomers, oligomers, or polymers having a number average of 2 or more polymerizable groups that are able to (co)polymerize with the polymerizable groups of the first oligomer or the one or more first-network monomers;
b. a second network-forming component comprising one or more second network compounds comprising polymerizable groups that do not (co)polymerize with the polymerizable groups of the first oligomer, and a second network initiator for initiating the polymerization of the one or more second network compounds; and
c. optionally, a particulate filler comprising a polymerizable group that is able to (co)polymerize with the polymerizable groups of the first oligomer.