公开(公告)号：US20220258407A1

公开(公告)日：2022-08-18

申请号：US17622077

申请日：2020-06-26

申请人： Arkema France

发明人： Roderick REBER ,  David LIU ,  Evan FISHER

IPC分类号： B29C64/118 ,  B29C64/314 ,  B29C64/364 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y40/00 ,  B33Y40/20 ,  B33Y70/00 ,  B33Y80/00

摘要： The invention relates to an additive manufacturing process by extrusion for forming a three-dimensional part in an additive manufacturing machine having a build environment, the process comprising: i) providing a composition comprising at least one poly-aryl-ether-ketone (PAEK) having a melt viscosity from about 200 Pa·s to about 1500 Pa·s, according to ASTM D3835-16, measured at a temperature of 320° C. and at a shear rate of 100 s−1, by capillary rheology using a 1 mm diameter, 15 mm long die; ii) extruding the composition in the build environment at an extrusion temperature equal to 330° C. or less, to form an extruded part section; and, iii) cooling the extruded part section in the build environment. The invention also relates to a filament and its use in said additive manufacturing process and the corresponding object obtainable from said additive manufacturing process.

公开(公告)号：US20230150887A1

公开(公告)日：2023-05-18

申请号：US17530970

申请日：2021-11-19

申请人： Arkema France

发明人： Robert J. BARSOTTI ,  Roderick REBER ,  Mary K. CALVIN ,  Stephen G. DIPIETRO

IPC分类号： C04B35/83 ,  C04B35/64 ,  C04B35/628 ,  C04B35/657

CPC分类号： C04B35/83 ,  C04B35/64 ,  C04B35/62886 ,  C04B35/62873 ,  C04B35/657 ,  C04B2235/48 ,  C04B2235/422 ,  C04B2235/5248 ,  C04B2235/5256 ,  C04B2235/616

摘要： A method for making a carbon carbon, carbon ceramic matrix, or carbon silica composite, comprising melt processing a resin comprising a polyaryletherketone (PAEK) and at least one reinforcing additive to make a precursor part, pyrolyzing the precursor part to make a pyrolyzed part, infusing a liquid second resin into the pyrolyzed part to make an infused part, and pyrolyzing the infused part. Other methods comprise processing aligned reinforcing additives and a resin comprising a PAEK to make an aligned reinforcing additives PAEK, aligned 1-2 dimensional flake material, or aligned 1-2 dimensional platelet material, to create a fabric, prepreg or tape comprising the aligned reinforcing additives and impregnated PAEK. Other methods comprise impregnating continuous fiber tape or fabric with a resin comprising PAEK and at least one reinforcing additive or co-weaving a continuous fiber or fabric with a PAEK fiber comprising PAEK and at least one reinforcing additive.

公开(公告)号：US20240076475A1

公开(公告)日：2024-03-07

申请号：US18270081

申请日：2021-12-23

申请人： ARKEMA FRANCE

发明人： Roderick REBER ,  Robert BARSOTTI

IPC分类号： C08K7/06

CPC分类号： C08K7/06 ,  B29K2071/12

摘要： The invention concerns a composite article, such as a mold part or an extrusion die, made of a composition comprising at least one polyarylether ketone and at least one thermally conductive filler, wherein the composite article has a thermal conductivity of at least 0.5 W/mK. The invention also concerns a composition and uses thereof.

公开(公告)号：US20230227369A1

公开(公告)日：2023-07-20

申请号：US18176639

申请日：2023-03-01

申请人： Arkema France

发明人： Robert BARSOTTI ,  Krysten MINNICI ,  Stephen G DIPIETRO ,  Mary CALVIN ,  Roderick REBER

IPC分类号： C04B35/83 ,  C04B35/64 ,  C04B35/628

CPC分类号： C04B35/83 ,  C04B35/64 ,  C04B35/62886 ,  C04B35/62873 ,  C04B2235/48 ,  C04B2235/422 ,  C04B2235/5248 ,  C04B2235/5252 ,  C04B2235/6562 ,  C04B2235/616

摘要： A method for making a high temperature composite, which is a carbon carbon composite, carbon fiber reinforced ceramic matrix composite, ceramic fiber reinforced ceramic matrix composite, or a carbon silica composite, including: a) providing a precursor part including a resin comprising a poly(aryl ether ketone) (PAEK) and at least one reinforcing material, wherein the resin has a degree of crystallinity of 10% or more; b) pyrolyzing the precursor part to a pyrolyzed part; c) infusing a liquid second resin into the pyrolyzed part to make an infused part; and d) pyrolyzing the infused part to make the carbon carbon composite carbon fiber reinforced ceramic matrix composite, ceramic fiber reinforced ceramic matrix composite, or the carbon silica composite, optionally repeating steps c. through d. Also, a carbon carbon composite, carbon fiber reinforced ceramic matrix composite, ceramic fiber reinforced ceramic matrix composite, or carbon silica composite made by the method.

公开(公告)号：US20240124738A1

公开(公告)日：2024-04-18

申请号：US18270257

申请日：2021-12-23

申请人： ARKEMA FRANCE

发明人： Roderick REBER ,  Guillaume LE

IPC分类号： C09D161/16 ,  B33Y70/00 ,  C08G65/40 ,  C09D11/102

CPC分类号： C09D161/16 ,  B33Y70/00 ,  C08G65/4012 ,  C09D11/102 ,  B29K2071/00 ,  C08G2650/48

摘要： The invention concerns an additive manufacturing process by extrusion for forming a three-dimensional part with an additive manufacturing machine comprising a nozzle, the process comprising:



i) providing a pseudo-amorphous composition having a glass temperature Tg;
ii) softening the composition at a softening temperature above Tg and below 300° C. to form a softened composition which is fluid enough to flow and, extruding the softened composition from the nozzle to form an extruded part section; and,
iii) solidifying the extruded part section;


wherein the composition is based on a homopolymer or a copolymer of poly-ether-ketone-ketone, consisting of: at least an isophthalic (I) repeating unit, having the formula:






and, in the case of the copolymer, a terephthalic (T) repeating unit, having the formula:






wherein the molar proportion of T units relative to the sum of the T and I units ranges from 0% to 45% or from 55% to 65%.