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公开(公告)号：US12122908B2
公开(公告)日：2024-10-22
申请号：US17288230
申请日：2019-10-23
发明人： Timo Lehtonen , Mika Laakkonen
CPC分类号： C08L67/02 , C08J5/043 , C08L67/04 , C08J2367/02 , C08J2367/04 , C08J2467/02 , C08J2467/04 , C08L2201/06
摘要： The present disclosure relates to a composite material comprising glass fiber and a polymer blend comprising polylactic acid (PLA) and polybutylene succinate (PBS), wherein the composite material comprises about 10 wt-% to about 80 wt-% of glass fibre, and wherein the polymer blend comprises about 20 wt-% to about 60 wt-% of PLA and about 40 wt-% to about 80 wt-% of PBS. The disclosure also relates to an article comprising the reinforced composite material.
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公开(公告)号：US20210388201A1
公开(公告)日：2021-12-16
申请号：US17288230
申请日：2019-10-23
发明人： Timo LEHTONEN , Mika LAAKKONEN
摘要： The present disclosure relates to a composite material comprising glass fiber and a polymer blend comprising polylactic acid (PLA) and polybutylene succinate (PBS), wherein the composite material comprises about 10 wt-% to about 80 wt-% of glass fibre, and wherein the polymer blend comprises about 20 wt-% to about 60 wt-% of PLA and about 40 wt-% to about 80 wt-% of PBS. The disclosure also relates to an article comprising the reinforced composite material.
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公开(公告)号：US20210046704A1
公开(公告)日：2021-02-18
申请号：US16964060
申请日：2018-01-23
发明人： Mikko HUTTUNEN , Janne PIHLAJAMÄKI
IPC分类号： B29C64/245 , B29C64/232 , B29C64/393 , B29C64/118 , B33Y10/00 , B33Y30/00
摘要： According to an aspect, there is provided a pin board tool for facilitating three-dimensional (3D) scanning and printing, comprising: an array (301) of parallel pins, wherein the parallel pins in the array are aligned in the longitudinal direction when the pin board tool is empty; a fixture (303) holding the array; and locking means (302) configured to lock the array of parallel pins in place when activated to provide a print bed for 3D printing an object having a surface corresponding to a pattern formed by the array locked in place, wherein the parallel pins are configured to be able to move freely in a longitudinal direction of the parallel pins independent of each other within a movement range when the locking means are inactive and an object is pushed against the parallel pins, the movement range being equal to or smaller than a length of each parallel pin. The application further relates to a 3D scanning and printing system (300) and also to a method for three dimensional (3D) scanning and printing.
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公开(公告)号：US20230355285A1
公开(公告)日：2023-11-09
申请号：US17920653
申请日：2020-04-22
发明人： Mikko HUTTUNEN , Harri HEINO , Miika LEHTOLA , Ville ELLÄ , Mika LAAKKONEN
CPC分类号： A61B17/866 , A61L31/128 , A61B17/846
摘要： A method is disclosed for manufacturing a fiber-reinforced implant structure. A fiber-reinforced rigid insert is provided, comprising continuous fibers impregnated with a first thermoplastic polymer. A molding cycle is performed by overmolding. The insert is placed into a mold cavity; and a second thermoplastic polymer in melted form is injection or compression molded into the mold cavity. The insert is thus at least partly covered by the second thermoplastic polymer. The second thermoplastic polymer injection or compression in the mold cavity is cooled, thereby obtaining a molded fiber-reinforced implant structure containing the at least partly covered insert. The insert is in a predefined location in the mold cavity during said injection or compression molding and during said cooling. The first thermoplastic polymer and the second thermoplastic polymer are the same or different. Also disclosed is an implant structure, and an implant comprising said implant structure.
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公开(公告)号：US20220396697A1
公开(公告)日：2022-12-15
申请号：US17774353
申请日：2020-11-04
发明人： Ari ROSLING , Marjo KETONEN
摘要： The invention relates to a method for producing a polymer master batch and a polymer composition, wherein the method comprises providing at least one monomer capable of forming a poly(hydroxy carboxylic acid), providing a graphene nano-filler, mixing the monomer and the graphene nano-filler and letting the monomer polymerize in the presence of the graphene nano-filler. The polymer together with the graphene nano-filler is further blended with another polymer to form a polymer composite. The invention also relates to a polymer composition with graphene nano-filler and a composite material comprising a polymer composite with graphene nano-fillers.
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公开(公告)号：US20200346399A1
公开(公告)日：2020-11-05
申请号：US16963090
申请日：2018-01-18
发明人： Mikko HUTTUNEN , Janne PIHLAJAMÄKI
IPC分类号： B29C64/118 , B33Y30/00 , B33Y10/00 , B29C64/209 , B29C64/295 , B29C70/38 , B33Y70/10 , B29C64/393 , B29C64/165
摘要： A 3D printer comprises a print head (500) for supplying pre-impregnated fiber composite filament (800) including inelastic axial fiber strands within thermoplastic matrix material. A first heating zone (1) between the filament supply and a heated nozzle (2) is heatable above the melting temperature of the matrix. A consolidation element (9) after the nozzle applies a consolidation force to the filament to attach the filament to the part. The nozzle is heatable to at least the melting temperature of the matrix. The filament is driven through the first heating zone into the nozzle. A cold zone (6) before the first heating zone maintains the temperature of the filament below the melting temperature of the matrix. A heat break (7) between the first heating zone and the nozzle creates a temperature gap between the first heating zone and the nozzle. The print head/consolidation element is movable in three degrees of freedom. The application further relates to a method for additive manufacturing of a part.
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公开(公告)号：US11813007B2
公开(公告)日：2023-11-14
申请号：US16756271
申请日：2018-10-15
发明人： Harri Heino , Timo Lehtonen , Mikko Huttunen , Miika Lehtola
CPC分类号： A61B17/8061 , A61L31/026 , A61L31/124 , A61L31/148 , A61B2017/00004 , A61B2017/00526 , A61B2017/564
摘要： The present invention provides an orthopedic implant comprising a continuous reinforced composite filament in a freely predetermined fiber orientation in multiple continuous successive layers, wherein the continuous reinforced composite filament comprises a bioabsorbable polymer matrix and a continuous bioabsorbable reinforcing fiber or fiber bundle, and whereby the continuous bioabsorbable reinforcing fiber or fiber bundle of consecutive layers at least partly intermingles and/or intertwines forming a three dimensionally interlocked continuous fiber structure.
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公开(公告)号：US20240001630A1
公开(公告)日：2024-01-04
申请号：US18255091
申请日：2020-11-30
发明人： Mikko HUTTUNEN , Vesa VUORISALO , Harri HEINO
CPC分类号： B29C70/46 , B29C43/3607 , B29C43/361 , B29C43/52 , B29C35/02 , B29C70/14 , B29C2043/3602 , B29K2105/253
摘要： A method of forming a fiber reinforced article comprising following steps: 101) providing a composite preform comprising of thermoplastic polymer matrix and reinforcing fibers, wherein the preform comprises an initial volume and initial fiber orientation, 102) loading the preform inside a radial molding apparatus comprising of at least three adjacent die segments next to each other forming a mold cavity in an initial position having an initial volume, 103) molding the preform by moving the die segments, which are in direct contact with each other during the initial position and movement and a compressed position, and which are perpendicular to a common longitudinal axis of the preform, wherein the initial volume of the mold cavity decreases and the die segments compress the preform to a form defined by the mold cavity in the compressed position having a final volume, which is smaller or equal to the initial volume of the preform, 104) opening the mold cavity, and 105) removing the obtained fiber reinforced article, which comprises a tailored fiber orientation, from the mold cavity, wherein the continuous reinforcing fibers follow to a surface contour of said article.
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公开(公告)号：US20210395136A1
公开(公告)日：2021-12-23
申请号：US17288215
申请日：2019-10-23
发明人： Timo LEHTONEN , Ville ELLÄ
摘要： The invention relates to a biodegradable, bioactive and bio-compatible glass composition comprising: SiO2 65-75 wt-%, Na2O 12-17 wt-%, CaO 8-11 wt-%, MgO 3-7 wt-%, P2O5 0.5-2.5 wt-%, B2O3 1-4 wt-%, K2O>0.5 wt-%-4 wt-%, SrO 0-4 wt-%, and at most 0.3 wt-% in total of Al2O3 and Fe2O3. The invention also relates to glass fiber comprising the glass composition and use of the glass fiber in medical and nonmedical applications.
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公开(公告)号：US20200323573A1
公开(公告)日：2020-10-15
申请号：US16756271
申请日：2018-10-15
发明人： Harri HEINO , Timo LEHTONEN , Mikko HUTTUNEN , Miika LEHTOLA
摘要： The present invention provides an orthopedic implant comprising a continuous reinforced composite filament in a freely predetermined fiber orientation in multiple continuous successive layers, wherein the continuous reinforced composite filament comprises a bioabsorbable polymer matrix and a continuous bioabsorbable reinforcing fiber or fiber bundle, and whereby the continuous bioabsorbable reinforcing fiber or fiber bundle of consecutive layers at least partly intermingles and/or intertwines forming a three dimensionally interlocked continuous fiber structure.
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