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公开(公告)号：US20190169389A1
公开(公告)日：2019-06-06
申请号：US16273075
申请日：2019-02-11
Applicant: AGENCY FOR SCIENCE, TECHNOLOGY AND RESEARCH
Inventor： Xu LI , Yu Yuan CHIENG , Siew Yee WONG , Xikui ZHANG
IPC: C08J7/04 , C09D133/02 , C08F2/44 , C08F20/06 , C09D4/06
Abstract: This invention relates to a a one-step process for making a polymer composite suspension for coating plastic films characterized in that a first polymer is synthesized in-situ optionally in the presence of other polymers and in the presence of clay. Preferably the polymer composite suspension comprises a) 1.0 to 11.0 wt % of clay or silane modified clay, b) 0.1 to 10.0 wt % of poly (acrylic acid), which is a copolymer of acrylic acid (AA) with at least one other monomer selected from 2-ethylhexyl acrylate (EHA), β-carboxyethyl acrylate (β-CEA), methacrylamidoethyl ethylene urea (WAM II) and ethoxylated behenyl methacrylate (β-FM), c) 1.0 to 15.0 wt % of other polymers, preferably poly (vinyl alcohol) and d) 70 to 97 wt % of water or mixture of water with 2-propanol. The coating films made from the suspensions show good barrier capabilities against water vapor and oxygen can be used to make barrier layers on or within plastic films for packaging applications. The invention also relates to methods for making silane modified clay usable in the process for making the suspensions.
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公开(公告)号：US20230103047A1
公开(公告)日：2023-03-30
申请号：US18076186
申请日：2022-12-06
Applicant: AGENCY FOR SCIENCE, TECHNOLOGY AND RESEARCH
Inventor： Xu LI , Yu Yuan CHIENG , Siew Yee WONG , Xikui ZHANG
Abstract: This invention relates to a a one-step process for making a polymer composite suspension for coating plastic films characterized in that a first polymer is synthesized in-situ optionally in the presence of other polymers and in the presence of clay. Preferably the polymer composite suspension comprises a) 1.0 to 11.0 wt % of clay or silane modified clay, b) 0.1 to 10.0 wt % of poly (acrylic acid), which is a copolymer of acrylic acid (AA) with at least one other monomer selected from 2-ethylhexyl acrylate (ERA), β-carboxyethyl acrylate (β-CEA), methacrylamidoethyl ethylene urea (WAM II) and ethoxylated behenyl methacrylate (β-EHA), c) 1.0 to 15.0 wt % of other polymers, preferably poly (vinyl alcohol) and d) 70 to 97 wt % of water or mixture of water with 2-propanol. The coating films made from the suspensions show good barrier capabilities against water vapor and oxygen can be used to make barrier layers on or within plastic films for packaging applications. The invention also relates to methods for making silane modified clay usable in the process for making the suspensions.
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Patent Agency Ranking
公开(公告)号：US20180132509A1
公开(公告)日：2018-05-17
申请号：US15576696
申请日：2016-05-23
Inventor： Xu LI , Yu Yuan CHIENG , Siew Yee WONG , Suxi WANG , Jen-Yi HUANG , Weibiao ZHOU
CPC classification number: A23L3/3436 , A23B7/148 , A23V2002/00 , B01J20/0229 , B01J20/20 , B01J20/28059 , B01J20/28061 , B01J20/28064 , B01J20/28066 , B01J20/28083 , B01J20/28085 , B01J20/3085 , B01J20/3204 , B01J20/3236 , B65D81/266
Abstract: The invention is directed to a nanostructured composite material comprising a mixture of at least one metal particle such as iron and a carbon material from biomass such as D-glucose, D-glucosamine hydrochloride or a-cyclodextrin. The invention is also directed to a composition comprising the composite material comprising the composite material and an inorganic salt, and a method for synthesizing the composite material comprising immersing the carbon material into a solution of metal ions, drying the impregnated carbon particle and subjecting the impregnated carbon particle to a carbothermal reduction process. The nanostructured composite material is useful as an oxygen scavenging layer in a multi-layer film which comprises the oxygen scavenging layer and an oxygen barrier layer that retards the permeation of oxygen from an external environment.
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公开(公告)号：US20160194515A1
公开(公告)日：2016-07-07
申请号：US14910628
申请日：2014-08-07
Applicant: AGENCY FOR SCIENCE, TECHNOLOGY AND RESEARCH
Inventor： Xu LI , Yu Yuan CHIENG , Siew Yee WONG , Shilin CHEN , Changliang REN
IPC: C09D133/02 , C09D129/04
CPC classification number: C09D133/02 , C01P2004/84 , C08K9/02 , C08K9/06 , C09C1/42 , C09C1/48 , C09C3/063 , C09C3/12 , C09D5/32 , C09D129/04
Abstract: There is provided an aqueous composite coating solution comprising a polymer matrix, a metal oxide immobilized onto an inorganic filler and optionally an additional UV absorber. The coating solution can be used to prepare barrier coatings shielding the substrate from UV radiation, moisture and oxygen. There is also provided a process for making such aqueous using titanium dioxide immobilized on clay in the composite materials. Protective layers obtained from coating using the composite polymer solutions are also provided.
Abstract translation: 提供了包含聚合物基质，固定在无机填料上的金属氧化物和任选的另外的UV吸收剂的水性复合涂层溶液。 涂层溶液可用于制备屏蔽涂层，以防止紫外线辐射，水分和氧气侵蚀基材。 还提供了使复合材料中固定在粘土上的二氧化钛的这种水溶液的制备方法。 还提供了使用复合聚合物溶液从涂覆获得的保护层。
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公开(公告)号：US20180207912A1
公开(公告)日：2018-07-26
申请号：US15737745
申请日：2016-06-20
Inventor： Xu LI , Yu Yuan CHIENG , Waibiao ZHOU
CPC classification number: B32B27/08 , A23B4/10 , A23L3/34 , B32B7/12 , B32B27/32 , B32B27/34 , B32B27/36 , B32B27/365 , B32B2250/03 , B32B2264/10 , B32B2264/105 , B32B2307/50 , B32B2307/546 , B32B2307/7163 , B32B2307/7244 , B32B2307/732 , B32B2439/70 , B32B2553/00 , C08J7/047 , C08J2367/02 , C08J2405/08 , C08J2489/00 , C08K3/08 , C08K3/22 , C08K9/06 , C08L89/00 , C09D189/00 , C08L5/08
Abstract: A polymer composite comprising a clay modified with a coupling agent such as an organosilane; and a plant protein matrix, wherein the coupling agent couples the modified clay to the plant protein polymeric matrix. An antimicrobial agent can also be coupled to the coupling agent. Suitable antimicrobial agents include chitosan and its derivatives, transition metals and inorganic oxides. A method of forming the polymer composite coating on a substrate, a multi-layered structure comprising said composite and a composition comprising the composite is also defined. The composite is useful in food packaging.
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公开(公告)号：US20170183468A1
公开(公告)日：2017-06-29
申请号：US15313091
申请日：2015-05-21
Applicant: AGENCY FOR SCIENCE, TECHNOLOGY AND RESEARCH
Inventor： Xu LI , Yu Yuan CHIENG , Siew Yee WONG , Xikui ZHANG
IPC: C08J7/04 , C08F2/44 , C09D133/02 , C09D4/06 , C08F20/06
CPC classification number: C08J7/047 , C08F2/44 , C08F20/06 , C08J2429/04 , C08J2433/02 , C09D4/06 , C09D133/02 , C09D129/04 , C08L33/02 , C08K3/346 , C08K9/06
Abstract: This invention relates to a a one-step process for making a polymer composite suspension for coating plastic films characterized in that a first polymer is synthesized in-situ optionally in the presence of other polymers and in the presence of clay. Preferably the polymer composite suspension comprises a) 1.0 to 11.0 wt % of clay or silane modified clay, b) 0.1 to 10.0 wt % of poly (acrylic acid), which is a copolymer of acrylic acid (AA) with at least one other monomer selected from 2-ethylhexyl acrylate (EHA), β-carboxyethyl acrylate (β-CEA), methacrylamidoethyl ethylene urea (WAM II) and ethoxylated behenyl methacrylate (β-EM), c) 1.0 to 15.0 wt % of other polymers, preferably poly (vinyl alcohol) and d) 70 to 97 wt % of water or mixture of water with 2-propanol. The coating films made from the suspensions show good barrier capabilities against water vapor and oxygen can be used to make barrier layers on or within plastic films for packaging applications. The invention also relates to methods for making silane modified clay usable in the process for making the suspensions.
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公开(公告)号：US20170130077A1
公开(公告)日：2017-05-11
申请号：US15317807
申请日：2015-06-09
Applicant: Agency for Science, Technology and Research
Inventor： Yun ZONG , Xu LI , T.S. Andy HOR , Regina LUM , Yu Yuan CHIENG
IPC: C09D7/12 , C09D129/04 , B05D3/00 , C09D5/32
CPC classification number: C09D7/48 , B05D3/007 , C08K5/0091 , C09D5/32 , C09D129/04
Abstract: The present invention provides a coating composition comprising a) a metal complex comprising an organic acid or anion thereof coordinated to a metal ion; and b) a polymer, wherein there is no covalent bond between said metal complex and the polymer.
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