公开(公告)号：US20210146612A1

公开(公告)日：2021-05-20

申请号：US17248456

申请日：2021-01-26

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Malte Korten ,  Helmar Mayr ,  Gioacchino Raia ,  Bernhard Hofmann ,  Adrian Eckert

IPC: B29C64/135 ,  B33Y10/00 ,  B33Y30/00 ,  B29C64/336 ,  B29C64/124 ,  B33Y50/02 ,  B29C64/393

Abstract: An additive manufacturing system has a light permeable base, a build carrier for holding a workpiece and a light source which is arranged to emit light through the light permeable base. The light permeable base and the build carrier are positionable relative to each other in a build dimension in which the workpiece is built up. The system further has a resin vat in which the light permeable base forms a wall portion thereof. The system further comprises a plurality of resin supplies for supplying different light hardenable resins in direct contact with each other in said vat. The system facilitates the rapid manufacturing of a dental restoration having a color gradation.

公开(公告)号：US20180361659A1

公开(公告)日：2018-12-20

申请号：US16060046

申请日：2016-12-12

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Malte Korten ,  Helmar Mayr ,  Gioacchino Raia ,  Bernhard Hofmann ,  Adrian Eckert

IPC: B29C64/135 ,  B29C64/393 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02

Abstract: An additive manufacturing system has a light permeable base (2), a build carrier (4) for holding a workpiece (100) and a light source (5) which is arranged to emit light through the light permeable base (2). The light permeable base (2) and the build carrier (4) are positionable relative to each other in a build dimension in which the workpiece (100) is built up. The system further has a resin vat (3) in which the light permeable base (2) forms a wall portion thereof. The system further comprises a plurality of resin supplies (13, 15) for supplying different light hardenable resins in direct contact with each other in said vat (3). The system facilitates the rapid manufacturing of a dental restoration having a color gradation.

公开(公告)号：US20230320942A1

公开(公告)日：2023-10-12

申请号：US18333956

申请日：2023-06-13

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Andreas HERRMANN ,  Gioacchino Raia ,  Malte Korten ,  Oliver Kappler ,  Bernhard Hofmann ,  Adrian Eckert ,  Helmar Mayr ,  Reinhold Hecht ,  Gallus Schechner ,  Rainer Guggenberger

IPC: A61K6/887 ,  A61C5/73 ,  A61K6/77 ,  A61K6/65 ,  A61K6/76 ,  A61K6/62 ,  A61K6/17 ,  C08L33/08 ,  C08L33/10 ,  C08L75/06

CPC classification number: A61K6/887 ,  A61C5/73 ,  A61K6/77 ,  A61K6/65 ,  A61K6/76 ,  A61K6/62 ,  A61K6/17 ,  C08L33/08 ,  C08L33/10 ,  C08L75/06

Abstract: The invention relates to A curable composition for producing dental composite crowns, the composition comprising a resin matrix comprising polymerizable (meth)acrylate(s) not comprising a urethane moiety, polymerizable urethane(meth)acrylate(s), wherein the polymerizable (meth)acrylate(s) not comprising an urethane moiety are used in excess over the polymerizable urethane(meth)acrylate(s), a filler matrix comprising nanocluster(s), fumed silica in an amount below 8 wt. % with respect to the weight of the whole composition, an initiator system comprising photoinitiator(s), organic dye(s), the curable composition not comprising softener in an amount of more than 5 wt. % with respect to the weight of the whole composition, the curable composition having a viscosity below 150 Pa*s at 23° C. and a shear rate of 1 s−1.
The invention also relates to a cured article obtained by radiation curing this curable composition by use of an additive-manufacturing method.

公开(公告)号：US11696875B2

公开(公告)日：2023-07-11

申请号：US16622530

申请日：2018-06-05

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Andreas Herrmann ,  Gioacchino Raia ,  Malte Korten ,  Oliver Kappler ,  Bernhard Hofmann ,  Adrian Eckert ,  Helmar Mayr ,  Reinhold Hecht ,  Gallus Schechner ,  Rainer Guggenberger

IPC: A61K6/887 ,  A61C5/73 ,  A61K6/77 ,  A61K6/65 ,  A61K6/76 ,  A61K6/62 ,  A61K6/17 ,  C08L33/08 ,  C08L33/10 ,  C08L75/06

CPC classification number: A61K6/887 ,  A61C5/73 ,  A61K6/17 ,  A61K6/62 ,  A61K6/65 ,  A61K6/76 ,  A61K6/77 ,  C08L33/08 ,  C08L33/10 ,  C08L75/06

Abstract: The invention relates to A curable composition for producing dental composite crowns, the composition comprising a resin matrix comprising polymerizable (meth)acrylate(s) not comprising a urethane moiety, polymerizable urethane(meth)acrylate(s), wherein the polymerizable (meth)acrylate(s) not comprising an urethane moiety are used in excess over the polymerizable urethane(meth)acrylate(s), a filler matrix comprising nanocluster(s), fumed silica in an amount below 8 wt. % with respect to the weight of the whole composition, an initiator system comprising photoinitiator(s), organic dye(s), the curable composition not comprising softener in an amount of more than 5 wt. % with respect to the weight of the whole composition, the curable composition having a viscosity below 150 Pa*s at 23° C. and a shear rate of 1 s−1. The invention also relates to a cured article obtained by radiation curing this curable composition by use of an additive-manufacturing method.

公开(公告)号：US11577453B2

公开(公告)日：2023-02-14

申请号：US17248456

申请日：2021-01-26

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Malte Korten ,  Helmar Mayr ,  Gioacchino Raia ,  Bernhard Hofmann ,  Adrian Eckert

IPC: B29C67/00 ,  B29C64/135 ,  B33Y10/00 ,  B33Y30/00 ,  B29C64/336 ,  B29C64/124 ,  B33Y50/02 ,  B29C64/393

Abstract: An additive manufacturing system has a light permeable base, a build carrier for holding a workpiece and a light source which is arranged to emit light through the light permeable base. The light permeable base and the build carrier are positionable relative to each other in a build dimension in which the workpiece is built up. The system further has a resin vat in which the light permeable base forms a wall portion thereof. The system further comprises a plurality of resin supplies for supplying different light hardenable resins in direct contact with each other in said vat. The system facilitates the rapid manufacturing of a dental restoration having a color gradation.

公开(公告)号：US20220243102A1

公开(公告)日：2022-08-04

申请号：US17607279

申请日：2020-04-22

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Ahmad Shaaban ,  Adrian Jung ,  Manfred Ludsteck ,  Adrian Eckert ,  Li Yao ,  Simon Plugge ,  Lingjie Tong

IPC: C09J133/08 ,  C09J133/10 ,  C08K3/22 ,  C08F220/18 ,  C08F220/06 ,  C08F220/28 ,  C08F222/10 ,  C08F230/02

Abstract: The present disclosure relates to a curable precursor of an adhesive composition, comprising: a) a (meth)acrylate-based (co)polymer base component comprising the free-radical (co)polymerization reaction product of a (co)polymerizable material comprising: i. C1-C32 acrylic acid ester monomer units; ii. optionally, C1-C18 methacrylic acid ester monomer units; and iii. optionally, ethylenically unsaturated monomer units having a functional group and which are copolymerizable with monomer units (i) and/or (ii); b) a crosslinker for the (meth)acrylate-based (co)polymer base component, which comprises at least one acid-functional group derived from phosphoric acid and at least one free-radical (co)polymerizable reactive group; c) a polyether oligomer having a number average molecular weight of at least 2000 g/mol and which comprises at least one free-radical (co)polymerizable reactive group; and d) a thermally conductive particulate material. According to another aspect, the present disclosure is directed to a curing system suitable for such curable precursor. According to still another aspect, the present disclosure relates to a method of manufacturing such curable precursor. In yet another aspect, the disclosure relates to the use of such curable precursor for industrial applications, in particular for thermal management applications in the automotive industry.

公开(公告)号：US10953596B2

公开(公告)日：2021-03-23

申请号：US16060046

申请日：2016-12-12

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Malte Korten ,  Helmar Mayr ,  Gioacchino Raia ,  Bernhard Hofmann ,  Adrian Eckert

IPC: B29C67/00 ,  B29C64/135 ,  B33Y10/00 ,  B33Y30/00 ,  B29C64/336 ,  B29C64/124 ,  B33Y50/02 ,  B29C64/393

Abstract: An additive manufacturing system has a light permeable base (2), a build carrier (4) for holding a workpiece (100) and a light source (5) which is arranged to emit light through the light permeable base (2). The light permeable base (2) and the build carrier (4) are positionable relative to each other in a build dimension in which the workpiece (100) is built up. The system further has a resin vat (3) in which the light permeable base (2) forms a wall portion thereof. The system further comprises a plurality of resin supplies (13, 15) for supplying different light hardenable resins in direct contact with each other in said vat (3). The system facilitates the rapid manufacturing of a dental restoration having a color gradation.

公开(公告)号：US20200206092A1

公开(公告)日：2020-07-02

申请号：US16622530

申请日：2018-06-05

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Andreas Herrmann ,  Gioacchino Raia ,  Malte Korten ,  Oliver Kappler ,  Bernhard Hofmann ,  Adrian Eckert ,  Helmar Mayr ,  Reinhold Hecht ,  Gallus Schechner ,  Rainer Guggenberger

IPC: A61K6/887 ,  A61K6/17 ,  A61K6/62 ,  A61K6/65 ,  A61C5/73 ,  A61K6/76 ,  A61K6/77 ,  C08L33/08 ,  C08L33/10 ,  C08L75/06

Abstract: The invention relates to A curable composition for producing dental composite crowns, the composition comprising a resin matrix comprising polymerizable (meth)acrylate(s) not comprising a urethane moiety, polymerizable urethane(meth)acrylate(s), wherein the polymerizable (meth)acrylate(s) not comprising an urethane moiety are used in excess over the polymerizable urethane(meth)acrylate(s), a filler matrix comprising nanocluster(s), fumed silica in an amount below 8 wt. % with respect to the weight of the whole composition, an initiator system comprising photoinitiator(s), organic dye(s), the curable composition not comprising softener in an amount of more than 5 wt. % with respect to the weight of the whole composition, the curable composition having a viscosity below 150 Pa*s at 23° C. and a shear rate of 1 s−1. The invention also relates to a cured article obtained by radiation curing this curable composition by use of an additive-manufacturing method.