Basf Se Corporation

Marie-Claire Hermant

Stephan Hueffer

Stephan Hüffer

Nikolaus Nestle

Bernd-Steffen Von Bernstorff

Kris Schmidt

Paul Van Der Schaaf

Martina Schoemer

Martin Blömacher

Laurence Pottie

Jordan Thomas Kopping

Bruno Inderbitzin

Martina Schömer

Juergen Demeter

Alexander Koehler

Mixture for use in a fused filament fabrication process

The present invention relates to the use of a filament comprising a core material (CM) comprising a ceramic material precursor (CMP) and the core material (CM) is coated with a layer of shell material (SM) comprising a thermoplastic polymer as a support material in a fused filament fabrication process. Further, the invention relates to three-dimensional objects and a process for the preparation thereof.

Filaments for use as a support material in fused deposition modeling

Poly-1,3-dioxepane, poly-1,3-dioxolane, polytetrahydrofurane or mixtures thereof are used in molding materials comprising polyoxymethylene or a copolymer containing a majority of oxymethylene units, for improving the flexural toughness of moldings formed from the molding materials.

Process for improving the flexural toughness of moldings

A filament containing a core material (CM) coated with a layer of shell material (SM), wherein the (CM) contains the components a) to c):

Filaments based on a coated core material

The present invention relates to an improved process for the production of sintered moldings by molding a mixture of a sinterable ceramic or metallic powder and polyoxymethylene or a copolymer containing a majority of oxymethylene units as binder to give a compact, removing the binder from the compact by treatment with a gaseous acid, and sintering the resulting molding.

Process for the production of sintered moldings

The present invention relates to the use of a polymer comprising polymerized units (A) and (B): (A) at least one first monomer of the formula (I) where n is 3 to 12; m is 0 to 3; Ris C-C-alkyl, C-C-alkenyl, aryl or aralkyl; R, Rand Rare each, independently of one another, hydrogen, C-C-alkyl, C-C-alkenyl, aryl or aralkyl; and (B) at least one second monomer of the formula (II) where R, Rand Rare each, independently of one another, hydrogen, C-C-alkyl, C-C-alkenyl, aryl or aralkyl; Ris C-C-alkyl, C-Calkenyl, aryl or aralkyl; as a support material in a fused filament fabrication process. 

Polymers as support material for use in fused filament fabrication

The patent application relates to a process for preparing polyoxymethylene by polymerization of a reaction mixture (R) which comprises at least one formaldehyde source and at least one initiator mixture (I), wherein the initiator mixture (I) comprises at least one polymerization initiator and at least one solvent of the general formula (I)R&#x2014;O&#x2014;[&#x2014;R&#x2014;O&#x2014;]&#x2014;R&#x2003;&#x2003;(I),

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Mannheim, Germany

Marie-Claire Hermant