Invention Grant
- Patent Title: Inks for 3D printing having low print through depth
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Application No.: US18326535Application Date: 2023-05-31
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Publication No.: US12018165B2Publication Date: 2024-06-25
- Inventor: Khalil Moussa
- Applicant: 3D Systems, Inc.
- Applicant Address: US SC Rock Hill
- Assignee: 3D Systems, Inc.
- Current Assignee: 3D Systems, Inc.
- Current Assignee Address: US SC Rock Hill
- Agency: Maynard Nexsen PC
- Agent John P. Zimmer
- Main IPC: B33Y10/00
- IPC: B33Y10/00 ; B29C64/112 ; B29C64/124 ; B33Y70/00 ; C09D11/037 ; C09D11/101 ; C09D11/107 ; C09D11/328 ; C09D11/38 ; B29K33/00 ; B29K105/00

Abstract:
In one aspect, inks for use with a three-dimensional (3D) printing system are described herein. In some embodiments, an ink described herein comprises up to 80 wt. % oligomeric curable material; up to 80 wt. % monomeric curable material; up to 10 wt. % photoinitiator; up to 1 wt. % non-curable absorber material; and up to 10 wt. % one or more additional components, based on the total weight of the ink, and wherein the total amount of the foregoing components is equal to 100 wt. %. Additionally, the photoinitiator is operable to initiate curing of the oligomeric curable material and/or the monomeric curable material when the photoinitiator is exposed to incident curing radiation having a peak wavelength λ. Moreover, the ink has a penetration depth (Dp), a critical energy (Ec), and a print through depth (DPT) at the wavelength λ of less than or equal to 2×Dp.
Public/Granted literature
- US20230303876A1 INKS FOR 3D PRINTING HAVING LOW PRINT THROUGH DEPTH Public/Granted day:2023-09-28
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