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1. WO2022114375 - POLYIMIDE POWDER HAVING CONTROLLED PARTICLE SIZE AND METHOD FOR PREPARING SAME

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Publication Number WO/2022/114375
Publication Date 02.06.2022
International Application No. PCT/KR2020/019235
International Filing Date 28.12.2020
IPC
C08J 3/12 2006.1
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H142
3Processes of treating or compounding macromolecular substances
12Powdering or granulating
C08G 73/10 2006.1
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
73Macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing nitrogen, with or without oxygen or carbon, not provided for in groups C08G12/-C08G71/238
06Polycondensates having nitrogen-containing heterocyclic rings in the main chain of the macromolecule; Polyhydrazides; Polyamide acids or similar polyimide precursors
10Polyimides; Polyester-imides; Polyamide-imides; Polyamide acids or similar polyimide precursors
CPC
C08G 73/10
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
73Macromolecular compounds obtained by reactions forming a linkage containing nitrogen with or without oxygen or carbon in the main chain of the macromolecule, not provided for in groups C08G12/00 - C08G71/00
06Polycondensates having nitrogen-containing heterocyclic rings in the main chain of the macromolecule
10Polyimides; Polyester-imides; Polyamide-imides; Polyamide acids or similar polyimide precursors
C08J 2379/08
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G
2379Characterised by the use of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing nitrogen with or without oxygen, or carbon only, not provided for in groups C08J2361/00 - C08J2377/00
04Polycondensates having nitrogen-containing heterocyclic rings in the main chain; Polyhydrazides; Polyamide acids or similar polyimide precursors
08Polyimides; Polyester-imides; Polyamide-imides; Polyamide acids or similar polyimide precursors
C08J 3/12
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G
3Processes of treating or compounding macromolecular substances
12Powdering or granulating
Applicants
  • 피아이첨단소재 주식회사 PI ADVANCED MATERIALS CO., LTD. [KR]/[KR]
Inventors
  • 이호성 LEE, Ho Sung
  • 이익상 LEE, Ik Sang
  • 전진석 JEON, Jin Seok
Agents
  • 김보정 KIM, Bo Jung
Priority Data
10-2020-016475030.11.2020KR
Publication Language Korean (ko)
Filing Language Korean (KO)
Designated States
Title
(EN) POLYIMIDE POWDER HAVING CONTROLLED PARTICLE SIZE AND METHOD FOR PREPARING SAME
(FR) POUDRE DE POLYIMIDE AYANT UNE TAILLE DE PARTICULE RÉGULÉE ET SON PROCÉDÉ DE PRODUCTION
(KO) 입도가 제어된 폴리이미드 분말 및 이의 제조방법
Abstract
(EN) The present invention relates to a method for preparing polyimide powder and, more specifically, to a method for preparing polyimide powder, comprising the steps of: a) dispersing dianhydride and diamine in distilled water to prepare a dispersion; and b) introducing the dispersion of step a) into a reactor and reacting at a stirring speed of 300 rpm or more under temperature and pressure conditions. In the present invention, water-based polymerization is used and the stirring speed is controlled during the manufacturing process, thereby improving physical properties, controlling the particle size, and controlling the dispersibility, without an additional process.
(FR) La présente invention concerne un procédé de préparation de poudre de polyimide et, plus spécifiquement, un procédé de préparation de poudre de polyimide comprenant les étapes consistant à : a) disperser du dianhydride et de la diamine dans de l'eau distillée pour préparer une dispersion ; et b) introduire la dispersion de l'étape a) dans un réacteur et faire réagir à une vitesse d'agitation de 300 tours/minute ou plus dans des conditions de température et de pression. Dans la présente invention, la polymérisation à base d'eau est utilisée et la vitesse d'agitation est régulée pendant le processus de fabrication, ce qui permet d'améliorer les propriétés physiques, de réguler la taille des particules et de réguler la dispersibilité, sans processus supplémentaire.
(KO) 본 발명은 폴리이미드 분말의 제조방법에 관한 것으로, 상세하게는 a) 다이안하이드라이드 및 다이아민을 증류수에 분산시켜 분산액을 제조하는 단계; 및 b) 상기 단계 a)의 분산액을 반응기에 투입하고 온도, 압력조건에서 300 rpm 이상의 교반속도로 반응시키는 단계를 포함하는 폴리이미드 분말의 제조방법에 관한 것이다. 본 발명은 수계중합을 이용하고, 제조과정에서 교반속도를 제어함으로써, 부가공정 없이 물성 향상, 입도 제어, 및 분산성 제어가 가능하다.
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