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Title:
FORMULATION FOR 3D PRINTING AND A 3D PRINTED ARTICLE
Document Type and Number:
WIPO Patent Application WO/2019/043253
Kind Code:
A3
Abstract:
A flowable liquid formulation for 3D printing is described. The formulation comprises from 0.1 to 25wt.% radiopaque particles, wherein at least 50% by weight of the particles have a diameter of at most 100 nm. The formulation further comprises monomeric, oligomeric and/or polymeric precursors adapted for polymerization to form a solidified article. Also described is an article (100) formed by 3D printing, the article (100) comprising a first 3D printed region (110) having a first radiopacity and a second 3D printed region (120) having a second radiopacity, wherein the first radiopacity is greater than the second radiopacity. Also described is a method of forming the article (100).

Inventors:
O'SULLIVAN KEVIN JEREMIAH (IE)
O'SULLIVAN LEONARD WILLIAM (IE)
CLIFFORD SEAMUS (IE)
SHANNON ALICE (IE)
Application Number:
PCT/EP2018/073748
Publication Date:
May 09, 2019
Filing Date:
September 04, 2018
Export Citation:
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Assignee:
UNIV LIMERICK (IE)
International Classes:
C08K3/22; B29C64/106; B33Y10/00; B33Y70/00; G03F7/00
Domestic Patent References:
WO2012064573A22012-05-18
WO2015165363A12015-11-05
WO2014039825A22014-03-13
Foreign References:
EP1508834A22005-02-23
US20100041789A12010-02-18
US20160113846A12016-04-28
EP3162469A12017-05-03
Other References:
HSIN-TA WANG ET AL: "In Vitro Biocompatibility, Radiopacity, and Physical Property Tests of Nano-Fe3O4 Incorporated Poly-l-lactide Bone Screws", POLYMERS, vol. 9, no. 12, 26 May 2017 (2017-05-26), pages 191, XP055531928, DOI: 10.3390/polym9060191
Attorney, Agent or Firm:
APPLEYARD LEES IP LLP (GB)
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