Patent ID: 11926748
Assignee: STRATASYS, INC.
Field: Basic materials chemistry (Chemistry)
Classification: CPC C  B  G | IPC B  C  G

Claim 0:
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.