US 12,378,425 B2
Thermosetting compositions and forming three-dimensional objects therefrom
Paulus Antonius Maria Steeman, Geleen (NL); and Marco Marcus Matheus Driessen, Geleen (NL)
Assigned to Stratasys, Inc., Minnetonka, MN (US)
Filed by Stratasys, Inc., Eden Prairie, MN (US)
Filed on May 15, 2024, as Appl. No. 18/664,800.
Application 18/664,800 is a division of application No. 17/881,097, filed on Aug. 4, 2022, granted, now 11,999,861.
Application 17/881,097 is a continuation of application No. 16/344,488, granted, now 11,485,865, issued on Nov. 1, 2022, previously published as PCT/EP2017/077782, filed on Oct. 30, 2017.
Prior Publication US 2025/0002735 A1, Jan. 2, 2025
Int. Cl. C09D 11/101 (2014.01); B29C 64/124 (2017.01); B33Y 10/00 (2015.01); B33Y 70/00 (2020.01); C08F 290/06 (2006.01); 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)] 23 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 network forming component comprising:
i) from 19.95 to 80 wt. %, based on the total weight of the first network-forming component, of a TPA-based polyester comprising a backbone and having a number average of at least 2 polymerizable groups, wherein the backbone comprises the reaction product of a terephthalic acid and a polyol, wherein the polymerizable groups comprise acrylate, methacrylate, epoxy, oxetane, hydroxyl, itaconate, vinyl ether, allyl ether, maleate, or fumarate, and wherein the TPA-based polyester has a number average molecular weight of from 800 to 10,000 g/mol and a Tg of at least 25° C.;
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 TPA-based polyester, wherein a linear polymer formed from the one or more first network monomers has a Tg of at least 25° C.;
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 TPA-based polyester 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 TPA-based polyester or the one or more first-network monomers;
b) a non-particulate impact modifier.