US 11,981,825 B2
Three-dimensional inkjet printing using ring-opening metathesis polymerization
Yuval Vidavsky, Moshav Sitriya (IL); and Lev Kuno, Tzur-Hadassah (IL)
Assigned to Stratasys Ltd., Rehovot (IL)
Filed by Stratasys Ltd., Rehovot (IL)
Filed on Jan. 5, 2023, as Appl. No. 18/093,403.
Application 18/093,403 is a continuation of application No. 17/241,169, filed on Apr. 27, 2021, granted, now 11,655,386.
Application 17/241,169 is a continuation of application No. 16/075,652, granted, now 11,001,725, issued on May 11, 2021, previously published as PCT/IL2017/050138, filed on Feb. 5, 2017.
Claims priority of provisional application 62/327,474, filed on Apr. 26, 2016.
Claims priority of provisional application 62/291,625, filed on Feb. 5, 2016.
Prior Publication US 2023/0151239 A1, May 18, 2023
Int. Cl. C09D 11/38 (2014.01); B29C 64/112 (2017.01); B29C 64/209 (2017.01); B29C 64/393 (2017.01); B33Y 10/00 (2015.01); B33Y 30/00 (2015.01); B33Y 70/00 (2020.01); C08G 61/08 (2006.01); C08K 3/013 (2018.01); C09D 11/101 (2014.01); C09D 11/102 (2014.01); B33Y 50/02 (2015.01)
CPC C09D 11/38 (2013.01) [B29C 64/112 (2017.08); B29C 64/209 (2017.08); B29C 64/393 (2017.08); B33Y 10/00 (2014.12); B33Y 30/00 (2014.12); B33Y 70/00 (2014.12); C08G 61/08 (2013.01); C08K 3/013 (2018.01); C09D 11/101 (2013.01); C09D 11/102 (2013.01); B33Y 50/02 (2014.12); C08G 2261/418 (2013.01)] 7 Claims
OG exemplary drawing
 
1. A kit comprising at least two modeling material formulations, each being individually packaged within the kit, wherein at least one of said at least two modeling material formulations comprises an unsaturated cyclic monomer polymerizable by ring opening metathesis polymerization (ROMP), at least one of said at least two modeling material formulations comprises a catalyst for initiating ROMP of said monomer, the kit further comprising at least one toughening agent packaged therewithin,
wherein said at least one toughening agent is or comprises an elastomeric material characterized by at least one of:
a molecular weight lower than 30,000 Daltons;
being non-reactive towards ROMP;
being dissolvable or dispersible in said at least one modeling material formulation that comprises said toughening agent; and
being capable of forming a multiphase structure when blended with said cured modeling material,
wherein said at least one toughening agent is either comprised by at least one of said at least two modeling material formulations or is packaged separately from said at least two modeling material formulations,
and wherein at least one of said at least two of said modeling material formulations comprises at least one material polymerizable or curable via a non-ROMP reaction and at least one of said at least two modeling material formulations further comprises an initiator of said non-ROMP reaction,
wherein:
at least one of said at least two modeling material formulations comprises said monomer polymerizable by ROMP and said initiator of said non-ROMP reaction and at least one another modeling material formulation of said at least two modeling material formulations comprises said at least one material polymerizable or curable via a non-ROMP reaction and said catalyst for initiating said ROMP; or
at least one of said at least two modeling material formulations comprises said monomer polymerizable by ROMP, said initiator of said non-ROMP reaction, and an activator for chemically activating said catalyst for initiating ROMP towards initiating ROMP of said monomer polymerizable by ROMP, and at least one another modeling material formulation of said at least two modeling material formulations comprises said at least one material polymerizable or curable via a non-ROMP reaction and said catalyst for initiating said ROMP; or
at least one of said at least two modeling material formulations comprises said monomer polymerizable by ROMP, said initiator of said non-ROMP reaction, and said catalyst for initiating said ROMP, and at least one another modeling material formulation of said at least two modeling material formulations comprises said at least one material polymerizable or curable via a non-ROMP reaction and an activator for chemically activating said catalyst for initiating ROMP towards initiating ROMP of said monomer polymerizable by ROMP.