公开(公告)号：WO2021133161A1

公开(公告)日：2021-07-01

申请号：PCT/MY2020/050142

申请日：2020-11-10

Applicant: MIMOS BERHAD

Inventor： ABDUL RASHID, Nora'zah ,  ABD AZIZ, Aiman Sajidah ,  SULAIMAN, Suraya ,  SYED MOHD JAAFAR, Syed Muhammad Hafiz ,  LEE, Hing Wah

IPC: C09D11/38 ,  C01B32/198 ,  C08K3/04

Abstract: The present invention relates to a method for preparing a graphene-based inkjet ink characterised by the steps of: exfoliating graphene oxide (GO) in deionised water at 25 - 30°C (100); reducing the GO and silver nitrate (AgNOs) at 25°C to 30°C to form a reduced GO (rGO) and silver (Ag) mixture (200); reacting the rGO and Ag mixture to form a rGO/Ag nanoparticles (rGO/Ag-NPs) mixture (300) without agitation at 25°C to 30°C; sonicating the rGO/Ag-NPs mixture (400) at 65°C to 68°C; centrifuging the rGO/Ag-NPs mixture to produce the graphene- based colloidal solution (500); and dispersing the graphene-based colloidal solution in a dispersant solution to produce the graphene-based inkjet ink (600).

公开(公告)号：WO2021246859A1

公开(公告)日：2021-12-09

申请号：PCT/MY2020/050182

申请日：2020-11-30

Applicant: MIMOS BERHAD

Inventor： SYED MOHD JAAFAR, Syed Muhammad Hafiz ,  LEE, Hing Wah ,  SULAIMAN, Suraya ,  ABD AZIZ, Aiman Sajidah ,  ABDUL RASHID, Nora'zah

IPC: C01B32/194

Abstract: The present invention discloses a method of preparing functionalized graphene using a biodegradable solvent. Graphene nanoplatelets and organic peroxide are mixed in dihydrolevoglucosenone solution, at room temperature to 60°C. Dihydrilevoglucosenone solution, also known as Cyrene trademark, is a biodegradable solution. Alkoxysilane is added to the solution at 60 to 90°C. The solution is sonicated with ultrasonic waves. The mixture is washed with polar solvent. The solution is dried to obtain alkoxysilane functionalized graphene. The overall process involves minimal heat.

公开(公告)号：WO2021246858A1

公开(公告)日：2021-12-09

申请号：PCT/MY2020/050181

申请日：2020-11-30

Applicant: MIMOS BERHAD

Inventor： ABD AZIZ, Aiman Sajidah ,  ABDUL RASHID, Nora'zah ,  SYED MOHD JAAFAR, Syed Muhammad Hafiz ,  SULAIMAN, Suraya ,  LEE, Hing Wah

IPC: B22F9/24 ,  C09D11/30 ,  C09D11/52 ,  B22F1/054 ,  B22F7/04 ,  C09D11/322

Abstract: The present invention discloses a method of preparing silver nanoparticles colloidal solution to be used as conductive ink. The solution is prepared by mixing silver, water, surface coating agent and silver reducing agent into a silver colloidal mixture. The silver mixture is sonicated with ultrasonic waves using low temperature heating. Polar solvent is added to the mixture. The silver mixture is centrifuged which forms precipitate. The precipitate is grinded to obtain coated silver nanoparticles. The silver nanoparticles is processed into ink and inserted in an inkjet cartridge. The inkjet cartridge can be operated with a printer below 50°C. The overall process involves minimal heat. The surface coating agent is selected from the group consisting of carboxyl, carbonyl, carboxylate and acrylic-based polymer. A single layer of printed conductive pattern can be obtained by using the prepared ink.

公开(公告)号：WO2009066983A3

公开(公告)日：2009-05-28

申请号：PCT/MY2008/000148

申请日：2008-11-21

Applicant: MIMOS BERHAD ,  MOHD ZAINI, Khairil Mazwan ,  MOHD SAMAN, Rahimah ,  ABDUL RASHID, Nora'zah

Inventor： MOHD ZAINI, Khairil Mazwan ,  MOHD SAMAN, Rahimah ,  ABDUL RASHID, Nora'zah

IPC: H01L21/208 ,  H01L21/31

Abstract: The present invention relates to a method of curing defects in a spin-on-glass more particularly bubble defects on the spin-on-glass. The advantage of the present invention is eliminate o reduce bubble effects on all the layers of SOG i.e. the first layer of SOG and the second and subsequent layers of SOG.