3D Systems. has filed a patent for a build material used in 3D printing systems. The material includes acrylate, photoinitiator, non-curable absorber, and water, with specific parameters for penetration depth and critical energy for optimal curing. This innovation aims to enhance the quality and efficiency of 3D printing processes. GlobalData’s report on 3D Systems gives a 360-degree view of the company including its patenting strategy. Buy the report here.

According to GlobalData’s company profile on 3D Systems, Spacecraft 3D Printing was a key innovation area identified from patents. 3D Systems's grant share as of January 2024 was 58%. Grant share is based on the ratio of number of grants to total number of patents.

The patent application (Publication Number: US20240026183A1) discloses a novel build material for hydrogel article formation, comprising an acrylate component, a photoinitiator component, a non-curable absorber component, and water. The build material is designed to initiate curing of the acrylate component when exposed to incident curing radiation with specific characteristics. The material's penetration depth (Dp) and critical energy (Ec) at a peak wavelength ? are crucial parameters, with Dp ranging from 10 µm to 50 µm and Ec between 5-40 mJ/cm2. Additionally, the ratio of Dp to Ec is specified to be less than 3, ensuring optimal performance.

Furthermore, the build material's composition includes specific percentages of each component, such as 5-80 wt. % of the acrylate component, 0.1-3 wt. % of the photoinitiator component, 0.1-1 wt. % of the non-curable absorber component, and 10-85 wt. % of water. The acrylate component consists of poly(ethylene glycol) diacrylate (PEGDA) species, with varying molecular weights. The method of forming a three-dimensional article by additive manufacturing using this build material involves selectively curing portions of the material based on preselected computer-aided design (CAD) parameters, with a voxel depth of 50 µm or less. The build material's unique properties and composition make it suitable for various applications, including medical implants, showcasing its versatility and potential impact in the field of additive manufacturing.

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