	US 11,878,459 B2
	Compositions and articles for additive fabrication and methods of using the same
Kangtai Ren, Geneva, IL (US); and Robin Papachristopoulos, Elgin, IL (US)
Assigned to STRATASYS, INC., Eden Prairie, MN (US)
Filed by STRATASYS INC., Eden Prairie, MN (US)
Filed on Oct. 15, 2021, as Appl. No. 17/502,631.
Application 17/502,631 is a continuation of application No. 16/957,820, granted, now 11,180,594, previously published as PCT/US2018/066346, filed on Dec. 19, 2018.
Claims priority of provisional application 62/612,157, filed on Dec. 29, 2017.
Claims priority of provisional application 62/619,439, filed on Jan. 19, 2018.
Prior Publication US 2022/0033553 A1, Feb. 3, 2022
Int. Cl. C08F 2/46 (2006.01); C08F 2/50 (2006.01); C08G 61/04 (2006.01); B29C 64/106 (2017.01); C09B 11/24 (2006.01); G01P 5/20 (2006.01); C08F 220/18 (2006.01); B33Y 70/10 (2020.01); B29C 64/135 (2017.01)

CPC B29C 64/106 (2017.08) [B33Y 70/10 (2020.01); C08F 220/18 (2013.01); C09B 11/24 (2013.01); G01P 5/20 (2013.01); B29C 64/135 (2017.08)]

19 Claims

1. A process of performing a particle imaging velocimetry test using an object created via additive fabrication, the method comprising:

providing a test component created via additive fabrication;

immersing the test component in a flow field seeded with tracer particles;

illuminating at least a portion of said seeded flow field proximate to said component with light of a first wavelength;

capturing a plurality of images using an imaging system;

evaluating said images to determine flow vectors proximate to the test component;

wherein the test component is uncoated, unfoiled, and unpainted,

wherein the test component is a cured product of a radiation curable composition comprising a filler,

and wherein the test component is the cured product of a composition comprising a compound defined by the following formula:

wherein R₁, R₂, R₃, R₄, R₅, and R₆each independently represents a hydrogen atom, a substituted methyl or alkyl group, or an un-substituted methyl or alkyl group; and R₇represents an un-substituted phenyl group or a substituted phenyl group.