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.

公开(公告)号：US20210147690A1

公开(公告)日：2021-05-20

申请号：US17161647

申请日：2021-01-28

Applicant: AGENCY FOR SCIENCE, TECHNOLOGY AND RESEARCH

Inventor： Chao CHEN ,  Xu LI ,  Suxi WANG ,  Xikui ZHANG ,  Siew Yee WONG

IPC: C09C3/06 ,  C09D7/62 ,  C09D7/40 ,  C09D5/33 ,  C09C1/28

Abstract: A method of forming a titania-coated inorganic particle comprising the steps of (a) stirring a mixture of a titania precursor such as a titanium alkoxide and an inorganic particle such as a hollow glass particles in an organic solvent such as an alcohol for more than 1 h to cause adsorption of the titania precursor on the surface of the inorganic particle; and (b) adding water dropwise to the mixture under stirring to convert the titania precursor to titania which then forms a coating on the inorganic particle. A method for forming a paint formulation, a titania-coated inorganic particle, a paint formulation comprising a titania-coated inorganic particle and use of a titania-coated inorganic particle in a paint formulation is also described.

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

IPC: C08F20/06 ,  C09D133/02 ,  C08J7/04 ,  C08J7/043 ,  C08F2/44 ,  C09D4/06 ,  C08J7/048

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.

公开(公告)号：US20190185677A1

公开(公告)日：2019-06-20

申请号：US16326691

申请日：2017-08-16

Applicant: AGENCY FOR SCIENCE, TECHNOLOGY AND RESEARCH

Inventor： Chao CHEN ,  Xu LI ,  Suxi WANG ,  Xikui ZHANG ,  Siew Yee WONG

IPC: C09C3/06 ,  C09C1/28 ,  C09D7/40 ,  C09D7/62

CPC classification number: C09C3/063 ,  C01P2002/72 ,  C01P2004/02 ,  C01P2004/03 ,  C01P2004/32 ,  C01P2004/61 ,  C01P2004/84 ,  C01P2006/10 ,  C08K3/34 ,  C08K3/36 ,  C08K3/40 ,  C08K7/20 ,  C08K7/26 ,  C08K7/28 ,  C08K9/02 ,  C08K2003/2241 ,  C08K2201/005 ,  C09C1/28 ,  C09D5/004 ,  C09D7/62 ,  C09D7/70

Abstract: A method of forming a titania-coated inorganic particle comprising the steps of (a) stirring a mixture of a titania precursor such as a titanium alkoxide and an inorganic particle such as a hollow glass particles in an organic solvent such as an alcohol for more than 1 h to cause adsorption of the titania precursor on the surface of the inorganic particle; and (b) adding water dropwise to the mixture under stirring to convert the titania precursor to titania which then forms a coating on the inorganic particle. A method for forming a paint formulation, a titania-coated inorganic particle, a paint formulation comprising a titania-coated inorganic particle and use of a titania-coated inorganic particle in a paint formulation is also described.

公开(公告)号：US20230383125A1

公开(公告)日：2023-11-30

申请号：US18230131

申请日：2023-08-03

Applicant: AGENCY FOR SCIENCE, TECHNOLOGY AND RESEARCH

Inventor： Chao CHEN ,  Xu LI ,  Suxi WANG ,  Xikui ZHANG ,  Siew Yee WONG

IPC: C09C3/06 ,  C09D7/62 ,  C09D7/40 ,  C09D5/33 ,  C09C1/28

CPC classification number: C09C3/063 ,  C09D7/62 ,  C08K9/02 ,  C09D5/004 ,  C09C1/28 ,  C09D7/70

Abstract: A method of forming a titania-coated inorganic particle comprising the steps of (a) stirring a mixture of a titania precursor such as a titanium alkoxide and an inorganic particle such as a hollow glass particles in an organic solvent such as an alcohol for more than 1 h to cause adsorption of the titania precursor on the surface of the inorganic particle; and (b) adding water dropwise to the mixture under stirring to convert the titania precursor to titania which then forms a coating on the inorganic particle. A method for forming a paint formulation, a titania-coated inorganic particle, a paint formulation comprising a titania-coated inorganic particle and use of a titania-coated inorganic particle in a paint formulation is also described.

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.

公开(公告)号：US20170217125A1

公开(公告)日：2017-08-03

申请号：US15510681

申请日：2015-09-10

Applicant: AGENCY FOR SCIENCE, TECHNOLOGY AND RESEARCH

Inventor： Xu LI ,  Suxi WANG ,  Chaobin HE ,  Xikui ZHANG

IPC: B32B5/02 ,  D01D5/00 ,  H01B1/04 ,  D06N3/12

CPC classification number: B32B5/028 ,  B32B5/02 ,  B32B5/24 ,  B32B25/04 ,  B32B25/10 ,  B32B25/14 ,  B32B25/20 ,  B32B2260/021 ,  B32B2260/048 ,  B32B2262/106 ,  B32B2264/105 ,  B32B2270/00 ,  B32B2307/202 ,  B32B2307/51 ,  B32B2307/546 ,  B32B2437/00 ,  B32B2457/00 ,  B32B2457/20 ,  B32B2535/00 ,  B82Y30/00 ,  D01D5/0007 ,  D01F9/14 ,  D01F9/17 ,  D06N3/0015 ,  D06N3/128 ,  D06N2201/087 ,  D06N2203/022 ,  D06N2203/066 ,  H01B1/04

Abstract: A conductive carbonaceous fiber is provided, comprising a carbonaceous material obtained from carbonizing an electrospun fiber wherein said fiber comprises at least one conductive metal precursor. The electrospun fibers can be formed into fibrous mats during spinning, stabilization and carbonization that are conductive materials which can be used to make stretchable conductors for flexible electronic devices. The invention relates also to the process for making the fibers, corresponding elastomeric fibrous mesh/polymer composites as well as use of these composites for making stretchable electrical conductors. The obtainable elastomeric composite films (with a thickness in the range of 0.8 to 1.5 mm) exhibit good electrical conductivity and excellent electromechanical stability under mechanical deformations (e.g. elongating, twisting and bending). The scalable fabrication process and low-cost precursors make the elastic electrospun carbon fibers/polymer composite conductors promising materials for applications in flexible electronic devices, displays, sensors, wearable conducting clothes, implantable medical devices, etc.