公开(公告)号：US20230193077A1

公开(公告)日：2023-06-22

申请号：US17998871

申请日：2021-08-10

Applicant: PUSAN NATIONAL UNIVERSITY INDUSTRY-UNIVERSITY COOPERATION FOUNDATION

Inventor： Chang Sik HA ,  Yu Bin JEON ,  Nagappan SARAVANAN ,  Jung Won KONG

IPC: C09D181/02 ,  C09D5/00 ,  C08G75/045

CPC classification number: C09D181/02 ,  C09D5/00 ,  C08G75/045

Abstract: The present invention relates to a method for preparing a transparent metallopolymer-based coating solution having excellent durability as well as excellent antifogging and antibacterial properties. The method for preparing a coating solution of the present invention comprises the steps of: adding an ultraviolet radical initiator, TMSH (trimethylolpropane tris(3-mercaptopropionate), and TESPMA (3-(trimethoxysilyl)propyl methacrylate) into a solvent containing ethyl acetate or acetone; irradiating the solution with ultraviolet rays to cause a polymerization reaction; and adding a metal precursor to the resulting solution, and then stirring same under a nitrogen atmosphere.

公开(公告)号：US20240279156A1

公开(公告)日：2024-08-22

申请号：US18413582

申请日：2024-01-16

Applicant: PUSAN NATIONAL UNIVERSITY INDUSTRY-UNIVERSITY COOPERATION FOUNDATION

Inventor： Chang Sik HA ,  Jun Seok LEE ,  Sung Soo PARK ,  Jadhav Amol MARUTI

IPC: C07C217/84 ,  C07C201/12 ,  C07C213/02 ,  C08G73/10

CPC classification number: C07C217/84 ,  C07C201/12 ,  C07C213/02 ,  C08G73/105

Abstract: Disclosed are a novel diamine compound, a reactive monomer for a polyimide precursor containing the same, and a polyimide film manufactured therefrom. The novel diamine compound is represented by a following Chemical Formula 1:






where in the Chemical Formula 1, Ph represents a substituted or unsubstituted phenyl group.

公开(公告)号：US20240199532A1

公开(公告)日：2024-06-20

申请号：US18477758

申请日：2023-09-29

Applicant: PUSAN NATIONAL UNIVERSITY INDUSTRY-UNIVERSITY COOPERATION FOUNDATION

Inventor： Chang Sik HA ,  Jun Seok LEE ,  Sung Soo PARK ,  Amol Maruti JADHAV ,  Yong Zhu YAN

IPC: C07C229/60 ,  C08G73/10 ,  C08J5/18

CPC classification number: C07C229/60 ,  C08G73/1039 ,  C08G73/1067 ,  C08J5/18 ,  C08J2479/08

Abstract: Disclosed are a novel diamine compound, a polyimide precursor produced using the same, polyimide produced from the polyimide precursor, and a polyimide film manufactured using the polyimide. The novel diamine compound is represented by a following Chemical Formula 1:






where in the Chemical Formula 1, each of R1 and R2 independently represents hydrogen, an alkyl group having 1 to 5 carbon atoms, or a trifluoromethyl group.

公开(公告)号：US20220326095A1

公开(公告)日：2022-10-13

申请号：US17599903

申请日：2021-03-18

Applicant: PUSAN NATIONAL UNIVERSITY INDUSTRY-UNIVERSITY COOPERATION FOUNDATION

Inventor： Kyung Chun KIM ,  Chang Sik HA ,  TAO CAI ,  YONGZHU YAN

IPC: G01K11/14 ,  C08J5/18

Abstract: Disclosed is a temperature measurement system including: a light source unit for receiving excitation light; a target material on which the temperature-sensitive film is attached in order to emit the received excitation light into emission light; a phosphorescence detector for extracting the emission light into a phosphorescence decay signal; and a temperature extraction unit for extracting temperature of the target material using the phosphorescence decay signal.

公开(公告)号：US20250066285A1

公开(公告)日：2025-02-27

申请号：US18778758

申请日：2024-07-19

Applicant: PUSAN NATIONAL UNIVERSITY INDUSTRY-UNIVERSITY COOPERATION FOUNDATION

Inventor： Chang Sik HA ,  Siva Gangi Reddy NAGELLA ,  Ji Yun HAN

IPC: C07C211/54 ,  C08G73/10 ,  C08J5/18

Abstract: A novel diamine compound and a low dielectric constant polyimide film based thereon are disclosed. The novel diamine compound is represented by a Chemical Formula 1 as set forth below: