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公开(公告)号：US12258449B2
公开(公告)日：2025-03-25
申请号：US17610738
申请日：2020-05-15
Applicant: AGENCY FOR SCIENCE, TECHNOLOGY AND RESEARCH
Inventor： Fuke Wang , Chaobin He , Fei Wang , Yi Ting Chong
Abstract: Photocurable compositions comprising 20-90% by weight of a polymerizable core resin; 20-90% by weight of a diluent resin miscible with said core resin; and at least about 1% by weight of at least one rheology modifier which is distinct from said diluent resin. Rheology modifiers of the present disclosure include compounds which may form covalent bonds with the core resin or diluent resin and compounds which have a particle size of 1-200 nm. Rheology modifiers which may form covalent bonds have at least one terminal functional group selected from the group consisting of acrylates, methacrylates, epoxides, oxetanes, nitriles, alkenes and alkynes.
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公开(公告)号：US10961342B2
公开(公告)日：2021-03-30
申请号：US16344840
申请日：2017-10-25
Applicant: AGENCY FOR SCIENCE, TECHNOLOGY AND RESEARCH
Inventor： FuKe Wang , Fei Wang , Chaobin He
IPC: C08F2/46 , C08F2/50 , C08G61/04 , C08G59/22 , C08F20/18 , C08F32/06 , C08F222/10 , C08G59/32 , C08K5/00 , C08K5/23 , C08K5/53 , C08L63/00 , C09K11/06 , C09K11/08 , B33Y70/00 , B33Y80/00
Abstract: There is provided a resin formulation comprising a resin precursor, a crosslinking additive, a photoinitiator, and at least one luminescent dye, wherein the crosslinking additive comprises a functional group selected from the group consisting of hydroxyl, alkoxyl, carboxylic acid, amine, amide, alkylacrylate, acrylate, epoxy, alkyl and heterocycloalkyl. The crosslinking additive of the resin formulation may help to homogeneously disperse the luminescent dye in the resin formulation and decrease the viscosity by improving the miscibility and polarity between the resin precursor and the luminescent dye, leading to an increase of solidification rate of the resin formulation during 3D printing such as stereolithography and digital light processing (DLP). There is also provided a method of preparing the resin formulation and uses of the resin formulation thereof.
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公开(公告)号：US20220267529A1
公开(公告)日：2022-08-25
申请号：US17610738
申请日：2020-05-15
Applicant: AGENCY FOR SCIENCE, TECHNOLOGY AND RESEARCH
Inventor： Fuke Wang , Chaobin He , Fei Wang , Yi Ting Chong
Abstract: Photocurable compositions comprising 20-90% by weight of a polymerizable core resin; 20-90% by weight of a diluent resin miscible with said core resin; and at least about 1% by weight of at least one rheology modifier which is distinct from said diluent resin. Rheology modifiers of the present disclosure include compounds which may form covalent bonds with the core resin or diluent resin and compounds which have a particle size of 1-200 nm. Rheology modifiers which may form covalent bonds have at least one terminal functional group selected from the group consisting of acrylates, methacrylates, epoxides, oxetanes, nitriles, alkenes and alkynes.
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公开(公告)号：US10711019B2
公开(公告)日：2020-07-14
申请号：US15752866
申请日：2016-08-17
Applicant: Agency for Science, Technology and Research
Inventor： Fuke Wang , Fei Wang , Chaobin He
Abstract: This invention relates to a photoinitiator compound comprising: a polyhedral oligomeric silsesquioxane (POSS) moiety and a photoinitiator moiety, wherein the photoinitiator compound having the structure according to formula (I): [R—SiO1.5]n (I), wherein n is 6, 8, 10 or 12 and R is independently selected from the group consisting of H, linear or branched (hetero)alkyl, linear or branched (hetero)alkenyl, (hetero)aryl, (hetero)alkyl aryl, (hetero)aryl alkyl and a photoinitiator moiety, wherein at least one R is a photoinitiator moiety and the photoinitiator compound is a nanoparticle. The present invention also relates to a method for the production of the photoinitiator compound of the invention, a photopolymerizable composition comprising the photoinitiator compound of the invention, the use of the photoinitiator compound of the invention for photopolymerization. The present invention is further related to a coated substrate comprising the photopolymerizable composition of the invention.
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公开(公告)号：US20180273657A1
公开(公告)日：2018-09-27
申请号：US15916133
申请日：2018-03-08
Applicant: AGENCY FOR SCIENCE, TECHNOLOGY AND RESEARCH
Inventor： Fuke Wang , Fei Wang , Chaobin He , Yi Ting Chong
Abstract: There is provided a resin formulation comprising a base acrylate monomer or oligomer, a solubilizing acrylate monomer or oligomer, a photoinitiator compound, a photoabsorber compound, and a photochromic dye, wherein the solubilizing acrylate monomer or oligomer comprises a functional group selected from the group consisting of hydroxyl, alkoxyl, carboxylic acid, amine, alkylamine, amide, alkylamide, alkylacrylate, acrylate, alkyl and heterocycloalkyl. There is also provided a method of preparing the resin formulation and uses of the resin formulation thereof.
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Patent Agency Ranking
公开(公告)号：US20180222929A1
公开(公告)日：2018-08-09
申请号：US15752866
申请日：2016-08-17
Applicant: Agency for Science, Technology and Research
Inventor： Fuke Wang , Fei Wang , Chaobin He
Abstract: This invention relates to a photoinitiator compound comprising: a polyhedral oligomeric silsesquioxane (POSS) moiety and a photoinitiator moiety, wherein the photoinitiator compound having the structure according to formula (I): [R—SiO1.5]n (I), wherein n is 6, 8, 10 or 12 and R is independently selected from the group consisting of H, linear or branched (hetero)alkyl, linear or branched (hetero)alkenyl, (hetero)aryl, (hetero)alkyl aryl, (hetero)aryl alkyl and a photoinitiator moiety, wherein at least one R is a photoinitiator moiety and the photoinitiator compound is a nanoparticle. The present invention also relates to a method for the production of the photoinitiator compound of the invention, a photopolymerizable composition comprising the photoinitiator compound of the invention, the use of the photoinitiator compound of the invention for photopolymerization. The present invention is further related to a coated substrate comprising the photopolymerizable composition of the invention.
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公开(公告)号：US12214545B2
公开(公告)日：2025-02-04
申请号：US17610729
申请日：2020-04-30
Applicant: AGENCY FOR SCIENCE, TECHNOLOGY AND RESEARCH
Abstract: A method of three-dimensional printing an object having a varying degree of transmissivity to light along an axis of the object, the method comprising the steps of (a) providing a liquefied polymer resin having a plurality of particles therein, the particles being distributed in the liquefied polymer resin based on the density of the particles; and (b) polymerizing the liquefied polymer resin under conditions to form the object layer-by-layer. There is also provided a formulation for three-dimensional printing and a three-dimensional printed object.
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公开(公告)号：US20200087443A1
公开(公告)日：2020-03-19
申请号：US16344840
申请日：2017-10-25
Applicant: AGENCY FOR SCIENCE, TECHNOLOGY AND RESEARCH
Inventor： FuKe Wang , Fei Wang , Chaobin He
IPC: C08G59/22 , C08F32/06 , C08L63/00 , C08K5/00 , C08K5/53 , C08K5/23 , C09K11/06 , C09K11/08 , C08F20/18 , C08G59/32 , C08F222/10
Abstract: There is provided a resin formulation comprising a resin precursor, a crosslinking additive, a photoinitiator, and at least one luminescent dye, wherein the crosslinking additive comprises a functional group selected from the group consisting of hydroxyl, alkoxyl, carboxylic acid, amine, amide, alkylacrylate, acrylate, epoxy, alkyl and heterocycloalkyl. The crosslinking additive of the resin formulation may help to homogeneously disperse the luminescent dye in the resin formulation and decrease the viscosity by improving the miscibility and polarity between the resin precursor and the luminescent dye, leading to an increase of solidification rate of the resin formulation during 3D printing such as stereolithography and digital light processing (DLP). There is also provided a method of preparing the resin formulation and uses of the resin formulation thereof.
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公开(公告)号：US20220219385A1
公开(公告)日：2022-07-14
申请号：US17610729
申请日：2020-04-30
Applicant: AGENCY FOR SCIENCE, TECHNOLOGY AND RESEARCH
IPC: B29C64/124 , C08L33/10 , C08L33/08
Abstract: A method of three-dimensional printing an object having a varying degree of transmissivity to light along an axis of the object, the method comprising the steps of (a) providing a liquefied polymer resin having a plurality of particles therein, the particles being distributed in the liquefied polymer resin based on the density of the particles; and (b) polymerizing the liquefied polymer resin under conditions to form the object layer-by-layer. There is also provided a formulation for three-dimensional printing and a three-dimensional printed object.
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公开(公告)号：US10723823B2
公开(公告)日：2020-07-28
申请号：US15916133
申请日：2018-03-08
Applicant: AGENCY FOR SCIENCE, TECHNOLOGY AND RESEARCH
Inventor： Fuke Wang , Fei Wang , Chaobin He , Yi Ting Chong
IPC: C08F2/46 , C08F2/50 , C08G61/04 , C08F20/26 , C08F2/48 , C08K3/16 , C08K5/00 , B33Y10/00 , C08F220/18 , C08F222/10
Abstract: There is provided a resin formulation comprising a base acrylate monomer or oligomer, a solubilizing acrylate monomer or oligomer, a photoinitiator compound, a photoabsorber compound, and a photochromic dye, wherein the solubilizing acrylate monomer or oligomer comprises a functional group selected from the group consisting of hydroxyl, alkoxyl, carboxylic acid, amine, alkylamine, amide, alkylamide, alkylacrylate, acrylate, alkyl and heterocycloalkyl. There is also provided a method of preparing the resin formulation and uses of the resin formulation thereof.
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