18571874. SINTER POWDER (SP) COMPRISING A THERMOPLASTIC POLYURETHANE simplified abstract (BASF SE)

SINTER POWDER (SP) COMPRISING A THERMOPLASTIC POLYURETHANE

Organization Name

BASF SE

Inventor(s)

Stephan Dohmen of Lemfoerde (DE)

Elmar Poeselt of Lemfoerde (DE)

Claus Gabriel of Ludwigshafen am Rhein (DE)

Leander Verbelen of Heidelberg (DE)

Florian A. Deme of Frontonas (FR)

Jocelyn Salas Lazo of Frontonas (FR)

Jean Rochette of Frontonas (FR)

SINTER POWDER (SP) COMPRISING A THERMOPLASTIC POLYURETHANE - A simplified explanation of the abstract

This abstract first appeared for US patent application 18571874 titled 'SINTER POWDER (SP) COMPRISING A THERMOPLASTIC POLYURETHANE

The present invention pertains to a sinter powder (SP) containing thermoplastic polyurethane, flow agent, organic additives, further additives, and reinforcers, with the thermoplastic polyurethane being prepared from specific components with limited aromatic moieties. The invention also includes a method for producing the sinter powder and its use in 3D printing processes, as well as the production of three-dimensional shaped articles to enhance energy return.

• Thermoplastic polyurethane-based sinter powder for 3D printing
• Method of producing the sinter powder and its use in 3D printing processes
• Improved energy return in three-dimensional shaped articles
• Specific components with limited aromatic moieties for thermoplastic polyurethane
• Inclusion of flow agents, organic additives, further additives, and reinforcers in the sinter powder

Potential Applications: - Additive manufacturing - Prototyping - Customized manufacturing processes

Problems Solved: - Enhancing energy return in 3D printed objects - Improving the properties of thermoplastic polyurethane-based materials - Increasing the efficiency of 3D printing processes

Benefits: - Enhanced performance of 3D printed objects - Increased durability and strength of printed parts - Customizable material properties for specific applications

Commercial Applications: Title: Thermoplastic Polyurethane Sinter Powder for Advanced 3D Printing Applications Description: The technology can be utilized in industries such as aerospace, automotive, healthcare, and consumer goods for the production of high-performance, customized parts with improved energy return and durability.

Questions about Thermoplastic Polyurethane Sinter Powder: 1. How does the inclusion of specific components with limited aromatic moieties impact the properties of thermoplastic polyurethane? 2. What are the potential applications of this sinter powder technology in additive manufacturing beyond 3D printing processes?

Original Abstract Submitted

The present invention relates to a sinter powder (SP) comprising 58.5% to 99.95% by weight of at least one thermoplastic polyurethane (A), 0.05% to 1.5% by weight of at least one flow agent (B), 0% to 5% by weight of at least one organic additive (C), 0% to 5% by weight of at least one further additive (D) and 0% to 30% by weight of at least one reinforcer (E), based in each case on the sum total of the percentages by weight (A), (B), (C), (D) and (E), wherein the thermoplastic polyurethane (A) is prepared by reacting at least one isocyanate (a), at least one isocyanate-reactive compound (b), and at least one chain extender (c), and wherein components (a), (b) and (c) each comprise not more than 15 mol-% of aromatic moieties, based on the total amount of the respective component (a), (b) and (c). The present invention further relates to a method of producing the sinter powder (SP) and to the use of the sinter powder (SP) in a three-dimensional (3D) printing process. The present invention further relates to a three-dimensional shaped article comprising the thermoplastic polyurethane (A), to a method of producing a three-dimensional shaped article and to the use of the at least one thermoplastic polyurethane (A) in a three-dimensional (3D) printing process for producing a three-dimensional shaped article to improve the energy return of the three-dimensional shaped article.