公开(公告)号：US20190329491A1

公开(公告)日：2019-10-31

申请号：US16462050

申请日：2017-11-17

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Phillip P. Yu ,  Stephen E. Amos ,  Mark J. Williams ,  Andrea C. Charif Rodriguez ,  Troy K. Ista ,  Joseph C. Dingeldein ,  Adam C. Schendel ,  Jeffrey N. Bartow ,  Michael C. Dadalas ,  Carsten Franke ,  Gabriele H. Gottschalk-Gaudig ,  Klaus Hintzer ,  Malte Korten ,  Gallus Schechner ,  Sebastian F. Zehentmaier ,  Fee Zentis

IPC: B29C64/165 ,  B33Y10/00 ,  B33Y70/00 ,  B29C64/209 ,  C09D11/322 ,  C09D11/037 ,  C09D11/108

Abstract: The method of making a three-dimensional article includes heating a composition comprising a polymer and hollow ceramic microspheres, extruding the composition in molten form from an extrusion head to provide at least a portion of a first layer of the three-dimensional article, and extruding at least a second layer of the composition in molten form from the extrusion head onto at least the portion of the first layer to make at least a portion of the three-dimensional article. Three-dimensional articles are also described. A composition including a polymer and hollow ceramic microspheres is also described. The composition may be a filament. The polymer is at least one of a low-surface-energy polymer or polyolefin. The composition can be useful, for example, in melt extrusion additive manufacturing, for example, fused filament fabrication.

公开(公告)号：US20150330623A1

公开(公告)日：2015-11-19

申请号：US14651543

申请日：2013-11-21

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Aaron R. Beaber ,  Thomas E. Wood ,  Adam C. Schendel ,  Badri Veeraraghavan ,  Evan Koon Lun Yuuji Hajime

IPC: F23D14/18 ,  F23C13/00

CPC classification number: F23D14/18 ,  F23C13/00 ,  F23D2203/1012 ,  F23D2212/105

Abstract: A catalytic burner includes a porous diffuser member and a porous distributor member. At least one seal extends between the porous diffuser member and the porous distributor member thereby defining an oxidation chamber. Catalyst media particles for catalyzing an oxidation reaction of a fuel stream to produce heat and an exhaust stream is disposed within the oxidation chamber. The catalyst media particles comprise carrier particles. The carrier particles comprise refractory material, and at least some of the carrier particles have thereon an outer coating comprising an oxidation catalyst. The catalyst media particles have a void fraction of at least 0.6.

Abstract translation: 催化燃烧器包括多孔扩散器部件和多孔分配器部件。 至少一个密封件在多孔扩散器构件和多孔分配器构件之间延伸，从而限定氧化室。 用于催化燃料流的氧化反应以产生热和排气流的催化剂介质颗粒设置在氧化室内。 催化剂介质颗粒包含载体颗粒。 载体颗粒包括耐火材料，并且至少一些载体颗粒上具有包含氧化催化剂的外涂层。 催化剂介质颗粒的空隙率至少为0.6。