3m Innovative Properties Company

Krishna B Uibel

Martin Engler

Jens Eichler

Robert M Schädel

Christoph Lesniak

Jan C Zimmer

Stefanie Wildhack

Jürgen Meyer

Sven Schreiner

Ursula Kayser

David W Worthey

Timo Sörgel

The present disclosure relates to a filamentary structure manufactured during 3D printing by liquid deposition modelling, the filamentary structure comprising a continuous strand comprising a matrix material and filler particles, wherein the filler particles comprise hexagonal boron nitride particles comprising hexagonal boron nitride platelets. The present disclosure further relates to a 3D printable ink composition for manufacturing said filamentary structure, to a 3D printed component part formed from said filamentary structure, to a 3D printing method for making said 3D printed component part, and to the use of said component part.

3D printed component part comprising a matrix material-boron nitride composite, method for making a 3D printed component part and use of a 3D printed component part

Provided are materials for a formed body comprising hexagonal boron nitride and such formed bodies. Also provided are heat-treated formed body obtained by heat-treating the formed bodies. The invention further relates to processes for making the formed body and the heat-treated formed body.

Formed hexagonal boron nitride body, heat-treated hexagonal boron nitride body and processes for producing the same

Provided are formed bodies comprising hexagonal boron nitride wherein the formed body has a Brinell hardness of at least 2 HBW 2,5/2, and wherein the formed body is obtainable by a process at temperatures of at most 100&#xb0; C., and wherein the Brinell hardness is measured according to DIN EN ISO 6506-1 (2013). Further provided are processes for making said formed body.

Formed hexagonal boron nitride body, hexagonal boron nitride granulates for making the same, and process for producing the same

The invention relates to boron nitride agglomerates, comprising lamellar, hexagonal boron nitride primary particles, which are agglomerated with one another with a preferred orientation, the agglomerates formed being flake-shaped. The invention also relates to a method for producing said boron nitride agglomerates, characterized in that lamellar, hexagonal boron nitride primary particles are agglomerated in such a way that they line up with one another with a preferred orientation. The flake-shaped agglomerates according to the invention are suitable as filler for polymers for making polymer-boron nitride composites and for hot pressing of boron nitride sintered compacts.

Boron nitride agglomerates, method of production thereof and use thereof

The invention relates to a method for producing a component part having a wall thickness of at most 3 mm on at least one part of the component part, comprising the method step of injection molding by means of an injection mold in an injection molding machine using a polymer/boron nitride compound, wherein the polymer/boron nitride compound comprises a thermoplastically processable polymer material and a heat-conducting filler, wherein the filler comprises platelet-shaped hexagonal boron nitride particles and wherein the injection rate during injection-molding is at most 200 mm/s. The invention further relates to a component part produced using such a method and a polymer/boron nitride compound for producing such a component part. The invention further relates to the use of such a component part for heat dissipation of component parts and assemblies to be cooled.

Component parts produced by thermoplastic processing of polymer/boron nitride compounds, polymer/boron nitride compounds for producing such component parts, method for producing such component parts and use thereof

Boron nitride agglomerates, method of production and use thereof

The invention relates to a shaped body comprising a substrate with a firmly adhering separating layer, wherein the separating layer comprises 92-98 wt. % silicon nitride (SiN) and 2-8 wt. % silicon dioxide (SiO) and wherein the separating layer has a total oxygen content of &#x2266;8 wt. % and a hardness of at least 10 HB 2.5/3 according to DIN EN ISO 6506-1.

Silicon-nitride-containing separating layer having high hardness

The invention relates to boron nitride agglomerates, comprising hexagonal boron nitride primary particles, wherein the hexagonal boron nitride primary particles are connected to one another by means of an inorganic binding phase comprising at least one nitride and/or oxynitride. The invention also relates to a method for producing such boron nitride agglomerates, wherein boron nitride starting powder in the form of boron nitride primary particles is mixed with binding-phase raw materials, processed into granules or molded bodies and these are then subjected to a temperature treatment at a temperature of at least 1000&#xb0; C. in a nitriding atmosphere, and the obtained granules or molded bodies are comminuted and/or fractionated if necessary. The boron nitride agglomerates according to the invention are suitable as a filler for polymers to be used for producing polymer-boron nitride composite materials.

Boron nitride agglomerates, method for the production thereof and use thereof

The invention relates to a suspension for producing a friction-increasing layer on a substrate, which comprises a liquid suspension medium, a predominantly inorganic binder or precursor compounds thereof and suspended hard material particles. The invention further relates to a shaped body comprising a substrate and a friction-increasing layer which has been applied to at least part of the surface of the substrate and comprises a predominantly inorganic binder matrix and hard material particles embedded therein, where the thickness of the binder matrix is less than the average particle size of the hard material particles so that the hard material particles project from the binder matrix and where the friction-increasing layer has been formed from a suspension according to the invention. The invention likewise relates to a process for producing the abovementioned shaped bodies and also their use for producing press or clamp connections and also as securing element.

Suspension for producing a layer increasing the coefficient of friction, molded part having such a layer increasing the coefficient of friction, method for the production thereof, and use thereof

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Waltenhofen, Germany

Krishna B Uibel