David Shin-Ren Liu

Title: David Shin-Ren Liu: Innovator in 3D Printing Technologies

Introduction

David Shin-Ren Liu is a prominent inventor based in Bala Cynwyd, PA (US). He has made significant contributions to the field of 3D printing, holding a total of 9 patents. His work focuses on developing advanced materials and processes that enhance the capabilities of additive manufacturing.

Latest Patents

Among his latest innovations is a patent for a dimensionally stable acrylic alloy for 3D printing. This acrylic alloy composition can be 3D printed using a material extrusion additive manufacturing process. It features an acrylic filament with a very uniform diameter, which is essential for the extrusion process. The alloy is a combination of an acrylic polymer and a low melt viscosity polymer, such as polylactic acid. Additionally, the alloy may be impact modified with hard core core-shell impact modifiers. Another notable patent involves 3D printed semi-crystalline and amorphous polymer articles. This invention relates to parts made with thermoplastic polymers that have a low stiffening temperature. The resulting printed parts exhibit excellent Z layer adhesion and high elongation at break in the Z direction, making them robust and nearly isotropic in mechanical properties.

Career Highlights

David has worked with notable companies such as Arkema Inc. and Arkema France. His experience in these organizations has contributed to his expertise in polymer science and additive manufacturing technologies.

Collaborations

Throughout his career, David has collaborated with talented individuals, including Mark A. Aubart and Gregory Scott O'Brien. These collaborations have further enriched his work and innovations in the field.

Conclusion

David Shin-Ren Liu is a key figure in the advancement of 3D printing technologies, with a focus on developing innovative materials that improve the performance of printed parts. His contributions continue to shape the future of additive manufacturing.