Shpp Global Technologies B.v.

Sabic Global Technologies B.v.

Brian Gray Price

Bruke Jofore

Hao Gu

Theodorus L Hoeks

Vandita Pai-Paranjape

Johannes Martinus Dina Goossens

Viswanathan Kalyanaraman

Elena Miloskovska

Raul Fernandez Cabello

Bruke Daniel Jofore

Theodorus Lambertus Hoeks

A particulate material useful for additive manufacturing contains a semicrystalline polycarbonate or a semicrystalline polyetherimide. The particles of the particulate material are characterized by a narrow volume-based distribution of equivalent spherical diameters in which the median equivalent spherical diameter (Dv50) M is in the range 35 to 85 micrometers, the equivalent spherical diameter corresponding to 1 percent of the cumulative undersize distribution (DvO1) is greater than 2 micrometers, and the equivalent spherical diameter corresponding to 99 percent of the cumulative undersize distribution (Dv99) is less than 115 micrometers. Also described is a method of additive manufacturing utilizing the particulate material.

Material and method for powder bed fusion

A particulate material for powder bed fusion has specific particle size characteristics and includes a thermoplastic and a sulfonate salt having the structure (A), wherein Z is a phosphorus atom or a nitrogen atom; each occurrence of X is independently halogen or hydrogen provided that at least one X is halogen; b, d, and e are integers from zero to 12; c is 0 or 1 provided that when c is 1, d and e are not both zero; Rare each independently C-Chydrocarbyl; Ris C-Chydrocarbyl; and Y is selected from (B)&#x2014;wherein Ris hydrogen or C-Chydrocarbyl. Also described is a method of powder bed fusion utilizing the particulate material.

Powder bed fusion material and method

Provided are amorphous and at least partially crystalline polyetherimide compositions having a comparatively narrow particle size distribution and are particularly suited for additive manufacturing processes. The compositions comprise a population of polyetherimide particulates are characterized as having a zero-shear viscosity sufficiently low so as to achieve a coalescence of at least 0.5, and preferably of about 1.0, as characterized by the Frenkel model at a temperature less than 450&#xb0; C.

Polyetherimide powders for additive manufacturing

A powder composition includes a plurality of thermoplastic particles and a plurality of flow promoting particles having an optimized flow, coalescence, or both; and methods of preparing three-dimensional articles and methods of preparing a powder coating, and articles prepared by the methods are described herein.

Powder compositions comprising thermoplastic particles and flow promoter particles, method of preparing articles and coatings from the powder compositions, and articles prepared therefrom

A powder composition including a plurality of thermoplastic particles having an optimized particle size and particle size distribution is disclosed. The powder composition includes a plurality of thermoplastic particles having a bimodal particle size distribution or a trimodal particle size distribution. Also disclosed are methods of preparing three-dimensional articles, methods of preparing a powder coating, and articles prepared by the methods.

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Evansville, IN, United States of America

Brian Gray Price