公开(公告)号：US11613464B2

公开(公告)日：2023-03-28

申请号：US16758487

申请日：2018-10-04

Applicant: NATIONAL RESEARCH COUNCIL OF CANADA

Inventor： Jingwen Guan ,  Benoit Simard

IPC: C01B21/00 ,  C01B21/064

Abstract: A modified boron nitride nanotube (BNNT) comprising pendant hydroxyl (OH) and amino (NH2) functional groups covalently bonded to a surface of the BNNT. Aqueous and organic solutions of these modified BNNTs are disclosed, along with methods of producing the same. The modified BNNTs and their solutions can be used to coat substrates and to make nanocomposites.

公开(公告)号：US09643944B2

公开(公告)日：2017-05-09

申请号：US13753396

申请日：2013-01-29

Applicant: NATIONAL RESEARCH COUNCIL OF CANADA

Inventor： Benoit Simard ,  Jingwen Guan

IPC: C07D301/27 ,  B82Y30/00 ,  B82Y40/00 ,  C01B31/02 ,  C08F8/02 ,  C08F257/02 ,  C08F265/04 ,  C08F281/00 ,  C08F291/00 ,  C08F293/00 ,  C08F297/00 ,  C09C1/44 ,  C07C29/132

CPC classification number: C07D301/27 ,  B82Y30/00 ,  B82Y40/00 ,  C01B32/174 ,  C01B2202/02 ,  C01B2202/28 ,  C01P2004/13 ,  C07C29/132 ,  C08F8/02 ,  C08F257/02 ,  C08F265/04 ,  C08F281/00 ,  C08F291/00 ,  C08F293/005 ,  C08F297/00 ,  C09C1/44 ,  Y10S977/847 ,  C08F220/18 ,  C08F212/08

Abstract: Compounds are attached to carbon nanotubes (CNT) by a process which comprises: subjecting surface treated CNTs which have been treated to induce negatively charged surface groups thereon, to nucleophilic substitution reaction with a compound carrying a functional group capable of reacting with the negatively charged groups on the CNT surface, whereby the compound chemically bonds to the CNT. The surface CNT treatment may be reduction. The compounds which are bonded to the CNT may be epoxy resins, bonded directly or through a spacer group. Bi-functional CNTs, grafted to both epoxy resins and other polymers such as polystyrene, are also made by this process.

公开(公告)号：US12172889B2

公开(公告)日：2024-12-24

申请号：US17253749

申请日：2019-07-11

Applicant: National Research Council of Canada

Inventor： Benoit Simard ,  Keith Ingold ,  Steven Kendrick Walker ,  Robyn Iannitto ,  Hyunjin Cho ,  Yadienka Martinez-Rubi ,  Keun Su Kim ,  Christopher Kingston ,  Jingwen Guan ,  Stephane Denommee ,  Dean Ruth ,  Mark Plunkett

IPC: C01B21/064 ,  C01B35/14 ,  B82Y40/00

Abstract: Provided is a process and an apparatus for purifying boron nitride nanotube (BNNT) materials. The process involves the use of a halogen gas to remove halogen-reactive impurities from boron nitride nanotube (BNNT) materials in a single step with minimal interactions to produce structurally pristine BNNT. Gaseous byproducts are produced that 5 can be removed without the need for solution phase treatments. Yield efficiencies and purity of recovered BNNT are high compared to the other known methods of purification for BNNT material.

公开(公告)号：US11993719B2

公开(公告)日：2024-05-28

申请号：US16759227

申请日：2018-10-26

Applicant: NATIONAL RESEARCH COUNCIL OF CANADA

Inventor： Chantal Paquet ,  Jacques Lefebvre ,  Jingwen Guan ,  Patrick Roland Lucien Malenfant ,  Benoit Simard ,  Yadienka Martinez-Rubi ,  Arnold Kell ,  Xiangyang Liu

IPC: C09C3/10 ,  B41M3/00 ,  B41M7/00 ,  C09D11/037 ,  C09D11/322 ,  C09D11/52 ,  H05K1/03 ,  H05K1/09 ,  H05K3/12

CPC classification number: C09C3/10 ,  B41M3/006 ,  B41M7/0081 ,  C09D11/037 ,  C09D11/322 ,  C09D11/52 ,  H05K1/0353 ,  H05K1/097 ,  H05K3/1283 ,  C01P2004/13 ,  H05K2201/0145 ,  H05K2201/0154 ,  H05K2201/0158 ,  H05K2201/0257 ,  H05K2201/026 ,  H05K2203/1131

Abstract: A composite includes a plastic substrate and an electrical insulator layer formed on the plastic substrate. The electrical insulator layer contains boron nitride nanotubes (BNNTs), which may be unmodified or modified BNNTS. The composite is suitable for use in making printed electronic devices. A process includes providing a plastic substrate and forming on at least a portion of a surface of the plastic substrate a layer that contains the BNNTs. A metallic ink trace is formed on a portion of the layer, such that the metallic ink trace is spaced-apart from the substrate. Using photonic or thermal sintering techniques, the metallic ink trace is then sintered.

公开(公告)号：US11703636B2

公开(公告)日：2023-07-18

申请号：US17607086

申请日：2020-04-30

Applicant: National Research Council of Canada

Inventor： Jingwen Guan ,  Huimin Ding ,  Ping Lu ,  Stephen Mihailov ,  Benoit Simard

IPC: G02B6/02 ,  C03C25/1065 ,  C03C25/106 ,  C01B21/064 ,  C03C25/16 ,  G01N21/41

CPC classification number: G02B6/02395 ,  C01B21/0648 ,  C03C25/1061 ,  C03C25/1068 ,  C03C25/16 ,  G01N21/41 ,  G02B6/02076 ,  C01P2004/03 ,  C01P2004/13 ,  G01N2021/4166 ,  G01N2201/088

Abstract: A solution is provided comprising boron nitride nanotubes (BNNTs) in a liquid solvent. An optical waveguide, such as an optical fiber, is contacted with the solution so as to form a layer of the solution supported on at least a portion of the optical waveguide. The liquid solvent is then removed from the layer of the solution supported on the optical waveguide in order to form a coating of the BNNTs on the optical waveguide. Further provided is a BNNT coated optical waveguide for use as a sensor.