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公开(公告)号：US11248106B2
公开(公告)日：2022-02-15
申请号：US16499028
申请日：2018-03-28
Applicant: Agency for Science, Technology and Research
Inventor： Warintron Thitsartarn , Chaobin He , Jayven Chee Chuan Yeo
Abstract: According to the present disclosure, a method of forming an exfoliated or intercalated filler material is provided, wherein the said method comprises the steps of mixing particles of filler material such as montmorillonite (MMT), mica, layered double hydroxide (LDH), and attapulgite (AT) dispersed in an aqueous medium with cationic acrylate monomers to form modified particles comprising positively charged ions, dispersing the modified particles in organic medium to form a dispersion, contacting said dispersion with an organo-silicate such as tetraethyl orthosilicate (TEOS) and a functionalizing agent comprising an organo-silane such as aminopropyltrimethoxysilane (APTMS), in the presence of a basic catalyst to form a layer of silica on the modified particles. The present disclosure also relates to an exfoliated or intercalated filler material obtained by the said method as well as a method of forming a resin/clay nanocomposite.
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公开(公告)号：US20210139684A1
公开(公告)日：2021-05-13
申请号：US17043179
申请日：2019-03-29
Inventor： Warintorn Thitsartarn , Chaobin He , Chee Chuan Jayven Yeo , Nopphawan Phonthammachai , Supakitt Treethammakul , Tanapon Sukachonmakul
Abstract: A reinforced polyolefin composite is provided. The reinforced polyolefin composite comprises a polyolefin such as polyethylene or polypropylene, a rigid fibre micro filler such as glass fiber, carbon or cellulosic fibers, and at least one nano filler such as clay. The reinforced polyolefin composite may also comprise a modified polyolefin, which has a polar functional group such as maleate monoester, an acid anhydride or an acrylate grafted thereon. The clay nano filler may also be modified with an organosilane. The reinforced polyolefin composite may also comprise a stabilizer or other additives. A method of producing the reinforced polyolefin composite is also provided, comprising mixing a polyolefin, a rigid micro filler and at least one nano filler to form a mixture, melting the mixture and kneading the melted mixture. The obtained reinforced polyolefin composite is used in transportation, infrastructure, consumer goods and construction.
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公开(公告)号：US20210108050A1
公开(公告)日：2021-04-15
申请号：US16499028
申请日：2018-03-28
Applicant: Agency for Science, Technology and Research
Inventor： Warintron Thitsartarn , Chaobin He , Jayven Chee Chuan Yeo
Abstract: According to the present disclosure, a method of forming an exfoliated or intercalated filler material is provided, wherein the said method comprises the steps of mixing particles of filler material such as montmorillonite (MMT), mica, layered double hydroxide (LDH), and attapulgite (AT) dispersed in an aqueous medium with cationic acrylate monomers to form modified particles comprising positively charged ions, dispersing the modified particles in organic medium to form a dispersion, contacting said dispersion with an organo-silicate such as tetraethyl orthosilicate (TEOS) and a functionalizing agent comprising an organo-silane such as aminopropyltrimethoxysilane (APTMS), in the presence of a basic catalyst to form a layer of silica on the modified particles. The present disclosure also relates to an exfoliated or intercalated filler material obtained by the said method as well as a method of forming a resin/clay nanocomposite.
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Patent Agency Ranking
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：US10647860B2
公开(公告)日：2020-05-12
申请号：US14350057
申请日：2012-10-04
Applicant: Agency for Science, Technology and Research
Inventor： Xu Li , Chaobin He , Siew Yee Wong
Abstract: The present invention relates to a method for forming a layered silicate/polymer composite, the composite comprising individual exfoliated silicate layers separated in a continuous polymer matrix, wherein the polymer is a hydrophobic polymer, the method comprising: exfoliating sheet silicate in water to form a silicate suspension; replacing the water in the silicate suspension by an organic solvent to form a silicate/organic solvent suspension; contacting the silicate/organic solvent suspension with a solution of a hydrophobic polymer precursor in an organic solvent to form a silicate/polymer precursor suspension; coating the silicate/polymer precursor suspension on a substrate; removing the organic solvents; curing the hydrophobic polymer precursor of the coating of the silicate/polymer precursor; and annealing the cured coating to form the layered silicate/polymer composite on the substrate.
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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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公开(公告)号：US08853330B2
公开(公告)日：2014-10-07
申请号：US13757955
申请日：2013-02-04
Applicant: Agency for Science, Technology and Research
Inventor： Yew Wei Leong , Beng Hoon Maureen Tan , Ting Ting Lin , Yang Choo Chua , Weng Weei Tjiu , Chaobin He , Pui Kwan Wong
IPC: C08G63/91 , C08G63/08 , C08F230/08 , C08L67/04
CPC classification number: C08L67/04 , C08G63/6952 , C08G63/91 , C08G63/912 , Y10S525/932
Abstract: Described herein are polymers comprising a polyester and at least one polyhedral oligomeric silsesquioxane, wherein the polyester is capable of forming a stereocomplex with a polymer comprising a complimentary polyester and composites thereof.
Abstract translation: 本文描述的是包含聚酯和至少一种多面体低聚倍半硅氧烷的聚合物，其中聚酯能够与包含互补聚酯及其复合材料的聚合物形成立体络合物。
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