Method of forming porous three-dimensional (3D) article

US11267193B2 · kind B2 · utility

Assignees

• Dow Silicones Corporation · US
• THE REGENTS OF THE UNIVERSITY OF MICHIGAN · US

Inventors

• Jeffrey Stephen Plott · Ferguson Road, US
• Herschel Henry Reese · Midland, US
• Albert Shih · Columbus, US
• Xiaoqing Tian · Ann Arbor, US
• Hongjun Wang · Ningbo City, CN
• Bizhong Zhu · Midland, US

Key dates

• Filing date: Mar 30, 2018
• Grant date: Mar 8, 2022
• Expiry date: Aug 26, 2038

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B29C67/04
• WIPO field: Other special machines
• WIPO sector: Mechanical engineering

Abstract

A method of forming a porous three-dimensional (3D) is disclosed. The method comprises (I) printing a first composition on a substrate (16) with the nozzle (12) of the apparatus (10) to form at least one first filament (14) comprising the first composition, (II) selectively controlling the distance and/or the speed such that the at least one first filament coils on the substrate to give a first layer on the substrate, the first layer comprising a coiled filament, optionally repeating steps I) and II) with independently selected composition(s) for any additional layer(s), and (III) exposing the layer(s) to a solidification condition. A porous three-dimensional (3D) article formed in accordance with the method is also disclosed.