公开(公告)号：US20230212417A1

公开(公告)日：2023-07-06

申请号：US18114458

申请日：2023-02-27

申请人： Agency for Science, Technology and Research

发明人： Xu Li ,  Yu Zhang ,  Ming Yan Tan ,  Siew Yee Wong ,  Xi Kui Zhang

IPC分类号： C09D133/14 ,  C08F2/18 ,  C08F2/44 ,  C08F292/00 ,  C08K3/34 ,  C08K5/14 ,  C08K5/5425 ,  C08K9/04 ,  C08F220/18

CPC分类号： C09D133/14 ,  C08F2/18 ,  C08F2/44 ,  C08F292/00 ,  C08K3/346 ,  C08K5/14 ,  C08K5/5425 ,  C08K9/04 ,  C08F220/1808 ,  C08F220/1806

摘要： A method of synthesizing a clay-polyacrylate composite. An aqueous solution including clay is mixed with at least one organosilane coupling agent including an acrylate moiety to form a silanized-clay suspension. The silanized-clay suspension is contacted with a first acrylate monomer and a second acrylate monomer in an inert environment, where the first acrylate monomer and the second acrylate monomer have different solubility. A polymerization initiator is added to the silanized-clay suspension before or during the contacting of the silanized-clay suspension with the first acrylate monomer and the second acrylate monomer in the inert environment to form the clay-polyacrylate composite including the first and second acrylate monomer, where the first acrylate monomer is a hydrophilic acrylate monomer including a hydroxyl (—OH) group and the second acrylate monomer is a hydrophobic acrylate monomer which repels water.

公开(公告)号：US11597852B2

公开(公告)日：2023-03-07

申请号：US16493555

申请日：2018-03-14

申请人： Agency for Science, Technology and Research

发明人： Xu Li ,  Yu Zhang ,  Ming Yan Tan ,  Siew Yee Wong ,  Xi Kui Zhang

IPC分类号： C09D133/14 ,  C08F292/00 ,  C08F2/44 ,  C08F2/18 ,  C08K5/14 ,  C08K5/5425 ,  C08K9/04 ,  C08K3/34 ,  C08F220/18

摘要： The present disclosure relates to a clay-polyacrylate composite comprising layers of clay intercalated with polyacrylate, wherein the layers of clay comprises at least one organosilane coupling agent comprising an acrylate moiety; and wherein the polyacrylate comprises a first acrylate monomer and a second acrylate monomer having different solubility. A surfactant-free method of synthesizing the said clay-polyacrylate composite and a method for coating are also provided. In a preferred embodiment, the first acrylate monomer is a hydrophilic acrylate monomer, e.g. 2-hydroxyethyl acrylate, and the second acrylate monomer is a hydrophobic acrylate monomer, e.g. 2-ethylhexyl acrylate. The clay-acrylate composite can be used for forming a barrier coating, which exhibits low water and low oxygen permeability.

公开(公告)号：US12018160B2

公开(公告)日：2024-06-25

申请号：US17420262

申请日：2020-01-21

申请人： AGENCY FOR SCIENCE, TECHNOLOGY AND RESEARCH

发明人： Xu Li ,  Yu Zhang ,  Ming Yan Tan

IPC分类号： C09C3/00 ,  A01N25/12 ,  A01N59/00 ,  A01P1/00 ,  B01J21/06 ,  B01J21/08 ,  B01J35/39 ,  C03C12/02 ,  C03C17/25 ,  C09C1/00 ,  C09C3/06 ,  C09D5/32 ,  C09D5/33 ,  C09D7/40 ,  C09D7/62

CPC分类号： C09C3/063 ,  A01N25/12 ,  A01N59/00 ,  A01P1/00 ,  B01J21/063 ,  B01J21/08 ,  B01J35/39 ,  C03C12/02 ,  C03C17/256 ,  C09C1/0078 ,  C09D5/004 ,  C09D5/32 ,  C09D7/62 ,  C09D7/70 ,  C01P2002/82 ,  C01P2002/84 ,  C01P2004/03 ,  C01P2004/04 ,  C01P2004/20 ,  C01P2004/84 ,  C03C2217/71 ,  C03C2217/74 ,  C03C2218/111 ,  C03C2218/32

摘要： A method of forming a titania-coated inorganic particle comprising the steps of: (a) agitating a mixture of inorganic particle and organic solvent; (b) adding titania precursor dropwise into the mixture of step (a) under agitation; and (c) adding catalyst to the mixture of step (b) thereby converting said titania precursor to titania which then forms a coating on said inorganic particle; wherein steps (a) to (c) are performed at neutral pH and ambient temperature.

公开(公告)号：US20230227688A1

公开(公告)日：2023-07-20

申请号：US18114947

申请日：2023-02-27

申请人： Agency for Science, Technology and Research

发明人： Xu Li ,  Yu Zhang ,  Ming Yan Tan ,  Siew Yee Wong ,  Xi Kui Zhang

IPC分类号： C09D133/14 ,  C08F2/18 ,  C08F292/00 ,  C08F2/44 ,  C08K3/34 ,  C08K9/04 ,  C08K5/5425 ,  C08F220/18 ,  C08K5/14

CPC分类号： C09D133/14 ,  C08F2/18 ,  C08F292/00 ,  C08F2/44 ,  C08K3/346 ,  C08K9/04 ,  C08K5/5425 ,  C08F220/1808 ,  C08K5/14 ,  C08F220/1806

摘要： A method of synthesizing a polymeric clay composition for coating. A clay-polyacrylate composite is produced, where the clay-polyacrylate composite includes one or more layers of clay intercalated with polyacrylate, where the one or more layers of clay include at least one organosilane coupling agent including an acrylate moiety, where the at least one organosilane coupling agent is attached to a surface of the one or more layers of clay and the polyacrylate is covalently attached to the organosilane coupling agent, and where the polyacrylate consists of a first acrylate monomer and a second acrylate monomer having different solubility, where the first acrylate monomer is a hydrophilic acrylate monomer including a hydroxyl (—OH) group and the second acrylate monomer is a hydrophobic acrylate monomer which repels water. Furthermore, the clay-polyacrylate composite is mixed with a solution including a polymer to form the polymeric clay composition.

公开(公告)号：US11814534B2

公开(公告)日：2023-11-14

申请号：US18114458

申请日：2023-02-27

申请人： Agency for Science, Technology and Research

发明人： Xu Li ,  Yu Zhang ,  Ming Yan Tan ,  Siew Yee Wong ,  Xi Kui Zhang

IPC分类号： C09D133/14 ,  C08F292/00 ,  C08F2/44 ,  C08F2/18 ,  C08K5/14 ,  C08K5/5425 ,  C08K9/04 ,  C08K3/34 ,  C08F220/18

CPC分类号： C09D133/14 ,  C08F2/18 ,  C08F2/44 ,  C08F220/1808 ,  C08F292/00 ,  C08K3/346 ,  C08K5/14 ,  C08K5/5425 ,  C08K9/04 ,  C08F220/1806

摘要： A method of synthesizing a clay-polyacrylate composite. An aqueous solution including clay is mixed with at least one organosilane coupling agent including an acrylate moiety to form a silanized-clay suspension. The silanized-clay suspension is contacted with a first acrylate monomer and a second acrylate monomer in an inert environment, where the first acrylate monomer and the second acrylate monomer have different solubility. A polymerization initiator is added to the silanized-clay suspension before or during the contacting of the silanized-clay suspension with the first acrylate monomer and the second acrylate monomer in the inert environment to form the clay-polyacrylate composite including the first and second acrylate monomer, where the first acrylate monomer is a hydrophilic acrylate monomer including a hydroxyl (—OH) group and the second acrylate monomer is a hydrophobic acrylate monomer which repels water.

公开(公告)号：US20200002453A1

公开(公告)日：2020-01-02

申请号：US16493555

申请日：2018-03-14

申请人： Agency for Science, Technology and Research

发明人： Xu Li ,  Yu Zhang ,  Ming Yan Tan ,  Siew Yee Wong ,  Xi Kui Zhang

IPC分类号： C08F220/28 ,  C08F2/18 ,  C08F292/00 ,  C08F2/44 ,  C08K3/34 ,  C08K5/5425 ,  C08K5/14 ,  C08K9/04

摘要： The present disclosure relates to a clay-polyacrylate composite comprising layers of clay intercalated with polyacrylate, wherein the layers of clay comprises at least one organosilane coupling agent comprising an acrylate moiety; and wherein the polyacrylate comprises a first acrylate monomer and a second acrylate monomer having different solubility. A surfactant-free method of synthesizing the said clay-polyacrylate composite and a method for coating are also provided. In a preferred embodiment, the first acrylate monomer is a hydrophilic acrylate monomer, e.g. 2-hydroxyethyl acrylate, and the second acrylate monomer is a hydrophobic acrylate monomer, e.g. 2-ethylhexyl acrylate. The clay-acrylate composite can be used for forming a barrier coating, which exhibits low water and low oxygen permeability.

公开(公告)号：US20240301212A1

公开(公告)日：2024-09-12

申请号：US18663173

申请日：2024-05-14

申请人： AGENCY FOR SCIENCE, TECHNOLOGY AND RESEARCH

发明人： Xu Li ,  Yu Zhang ,  Ming Yan Tan

IPC分类号： C09C3/06 ,  A01N25/12 ,  A01N59/00 ,  A01P1/00 ,  B01J21/06 ,  B01J21/08 ,  B01J35/39 ,  C03C12/02 ,  C03C17/25 ,  C09C1/00 ,  C09D5/32 ,  C09D5/33 ,  C09D7/40 ,  C09D7/62

CPC分类号： C09C3/063 ,  A01N25/12 ,  A01N59/00 ,  A01P1/00 ,  B01J21/063 ,  B01J21/08 ,  B01J35/39 ,  C03C12/02 ,  C03C17/256 ,  C09C1/0078 ,  C09D5/004 ,  C09D5/32 ,  C09D7/62 ,  C09D7/70 ,  C01P2002/82 ,  C01P2002/84 ,  C01P2004/03 ,  C01P2004/04 ,  C01P2004/20 ,  C01P2004/84 ,  C03C2217/71 ,  C03C2217/74 ,  C03C2218/111 ,  C03C2218/32

摘要： A method of forming a titania-coated inorganic particle comprising the steps of: (a) agitating a mixture of inorganic particle and organic solvent; (b) adding titania precursor dropwise into the mixture of step (a) under agitation; and (c) adding catalyst to the mixture of step (b) thereby converting said titania precursor to titania which then forms a coating on said inorganic particle; wherein steps (a) to (c) are performed at neutral pH and ambient temperature.

公开(公告)号：US11814535B2

公开(公告)日：2023-11-14

申请号：US18114947

申请日：2023-02-27

申请人： Agency for Science, Technology and Research

发明人： Xu Li ,  Yu Zhang ,  Ming Yan Tan ,  Siew Yee Wong ,  Xi Kui Zhang

IPC分类号： C09D133/14 ,  C08F292/00 ,  C08F2/44 ,  C08F2/18 ,  C08K5/14 ,  C08K5/5425 ,  C08K9/04 ,  C08K3/34 ,  C08F220/18

CPC分类号： C09D133/14 ,  C08F2/18 ,  C08F2/44 ,  C08F220/1808 ,  C08F292/00 ,  C08K3/346 ,  C08K5/14 ,  C08K5/5425 ,  C08K9/04 ,  C08F220/1806

摘要： A method of synthesizing a polymeric clay composition for coating. A clay-polyacrylate composite is produced, where the clay-polyacrylate composite includes one or more layers of clay intercalated with polyacrylate, where the one or more layers of clay include at least one organosilane coupling agent including an acrylate moiety, where the at least one organosilane coupling agent is attached to a surface of the one or more layers of clay and the polyacrylate is covalently attached to the organosilane coupling agent, and where the polyacrylate consists of a first acrylate monomer and a second acrylate monomer having different solubility, where the first acrylate monomer is a hydrophilic acrylate monomer including a hydroxyl (—OH) group and the second acrylate monomer is a hydrophobic acrylate monomer which repels water. Furthermore, the clay-polyacrylate composite is mixed with a solution including a polymer to form the polymeric clay composition.

公开(公告)号：US20220089881A1

公开(公告)日：2022-03-24

申请号：US17420262

申请日：2020-01-21

申请人： AGENCY FOR SCIENCE, TECHNOLOGY AND RESEARCH

发明人： Xu Li ,  Yu Zhang ,  Ming Yan Tan

IPC分类号： C09C3/06 ,  C09C1/00 ,  C03C12/02 ,  C09D7/62 ,  C09D7/40 ,  C09D5/32 ,  C09D5/33 ,  B01J35/00 ,  B01J21/06 ,  B01J21/08 ,  A01N59/00 ,  A01N25/12 ,  A01P1/00 ,  C03C17/25

摘要： A method of forming a titania-coated inorganic particle comprising the steps of: (a) agitating a mixture of inorganic particle and organic solvent; (b) adding titania precursor dropwise into the mixture of step (a) under agitation; and (c) adding catalyst to the mixture of step (b) thereby converting said titania precursor to titania which then forms a coating on said inorganic particle; wherein steps (a) to (c) are performed at neutral pH and ambient temperature.