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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：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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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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Patent Agency Ranking
公开(公告)号：US12262505B2
公开(公告)日：2025-03-25
申请号：US17912543
申请日：2021-03-22
Applicant: AGENCY FOR SCIENCE, TECHNOLOGY AND RESEARCH
Inventor： Fuke Wang
IPC: H05K7/20 , B29C64/277 , B29C64/393 , B33Y30/00 , B29C64/124
Abstract: There is provided a lighting system comprising a light source, and a cooling system with temperature sensing and responding capability coupled to the light source for maintaining a temperature of the light source within a defined variation from a set temperature. There are also provided a method of adjusting a temperature of a light source and a method of assembling the lighting system. There is further provided an additive manufacturing system for three-dimensional printing comprising the lighting system.
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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：US20230147886A1
公开(公告)日：2023-05-11
申请号：US17912543
申请日：2021-03-22
Applicant: AGENCY FOR SCIENCE, TECHNOLOGY AND RESEARCH
Inventor： Fuke Wang
IPC: H05K7/20 , B29C64/277 , B29C64/393 , B33Y30/00
CPC classification number: H05K7/20209 , B29C64/277 , B29C64/393 , B33Y30/00 , B29C64/124
Abstract: There is provided a lighting system comprising a light source, and a cooling system with temperature sensing and responding capability coupled to the light source for maintaining a temperature of the light source within a defined variation from a set temperature. There are also provided a method of adjusting a temperature of a light source and a method of assembling the lighting system. There is further provided an additive manufacturing system for three-dimensional printing comprising the lighting system.
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公开(公告)号：US20220308553A1
公开(公告)日：2022-09-29
申请号：US17610743
申请日：2020-05-14
Applicant: AGENCY FOR SCIENCE, TECHNOLOGY AND RESEARCH
Inventor： Fuke Wang , Chaobin He , Yi Ting Chong , Evan Laurence Williams
IPC: G05B19/4099 , A61C19/10 , A61C13/00 , A61C13/087 , B33Y50/00 , B29C64/386 , B33Y70/00
Abstract: A method of making an article having a desired color, the method comprising the steps of: (a) providing a color array, said array comprising a plurality of distinct color points, each color point being independently composed of a resin mixture comprising one or more masterbatch resins; (b) comparing the desired color with the color points on the color array and selecting a color point that substantially corresponds to the desired color of the article; (c) identifying the resin mixture corresponding to said selected color point; and (d) making the article using said identified resin mixture.
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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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