METHOD FOR PREPARING POLYETHER KETONE KETONE MIXTURE RESIN COMPOSITION, AND POLYETHER KETONE KETONE PREPARED THEREBY

• Main Authors: JEONG, Kwang Seok, KIM, Jae Heon, CHO, Sang Hyun, KIM, Min Sung, SIM, Yu Jin, AHN, Cho Hee
• Format: Patent
• Language: English; French; Korean
• Published: 25.06.2020
• Subjects: CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS

The present invention relates to a method for preparing a polyether ketone ketone (hereinafter, referred to as PEKK) mixture resin composition, and a PEKK prepared thereby and, specifically, to: a method for preparing a PEKK mixture resin composition, which contains a phosphite-based compound so as to have improved thermal stability, and, simultaneously, comprises diphenyl oxide and 1,4-diphenylbenzene, which are added as reaction monomers, so as to improve crystallization speed during a polymerization reaction and enhance injection moldability; and a PEKK prepared thereby. According to the present invention, provided is a method for preparing a PEKK mixture resin composition, comprising the steps of: (a) putting at least one, selected from among 1,4-diphenoxybenzene and 1,4-bis(4-phenoxybenzoyl)benzene (EKKE), terephthaloyl chloride (TPC) and isophthaloyl chloride (IPC), into a liquid reaction medium in a reactor and, simultaneously, dissolving same, thereby preparing a reaction solution; (b) lowering the temperature of the reaction solution, and then injecting a catalyst; (c) injecting the catalyst, and then directly blowing an inert gas into the reaction solution and stirring same so as to prepare a PEKK neat resin; and (d) injecting a phosphite-based compound into the neat resin and mixing same by means of a mixer. Therefore, thermal stability is improved during PEKK processing and, simultaneously, injection moldability is improved by enhancing crystallization speed during polymerization reaction. La présente invention concerne un procédé de préparation d'une composition de résine de mélange de polyéthercétonecétone (ci-après appelé PEKK), et un PEKK préparé selon ce procédé et, spécifiquement, un procédé de préparation d'une composition de résine de mélange de PEKK, qui contient un composé à base de phosphite de façon à présenter une stabilité thermique améliorée, et, simultanément, comprend de l'oxyde de diphényle et du 1,4-diphénylbenzène, qui sont ajoutés en tant que monomères de réaction, de manière à améliorer la vitesse de cristallisation pendant une réaction de polymérisation et à améliorer l'aptitude au moulage par injection; et un PEKK préparé par ce procédé. Selon la présente invention, l'invention concerne un procédé de préparation d'une composition de résine de mélange de PEKK, comprenant les étapes consistant à : (A) mettre en place au moins un élément, choisi parmi le 1,4-diphénoxybenzène et le 1,4-bis (4-phénoxybenzoyl)benzène (EKKE), du chlorure de téréphtaloyle (TPC) et du chlorure d'isophtaloyle (IPC), dans un milieu de réaction liquide dans un réacteur et, simultanément, à dissoudre celui-ci, ce qui permet de préparer une solution de réaction; (b) abaisser la température de la solution de réaction, puis injecter un catalyseur; (c) injecter le catalyseur, puis souffler directement un gaz inerte dans la solution de réaction et l'agiter de manière à préparer une résine pure de PEKK; et (d) injecter un composé à base de phosphite dans la résine pure et le mélanger au moyen d'un mélangeur. Par conséquent, la stabilité thermique Est améliorée pendant le traitement de PEKK et, simultanément, l'aptitude au moulage par injection est améliorée par l'amélioration de la vitesse de cristallisation pendant la réaction de polymérisation. 본 발명은 폴리에테르케톤케톤(Polyether Ketone Ketone, 이하 PEKK로도 칭한다.) 폴리에테르케톤케톤 혼합수지 조성물의 제조방법 이에 의해 제조된 폴리에테르케톤케톤에 관한 것이다. 특히 포스파이트(phosphite)계 화합물을 포함하여 열안정성을 개선함과 동시에 반응의 모노머로서, 다이페닐 옥사이드 및1,4-다이페닐 벤젠을 첨가하여 중합반응 시, 결정화속도를 향상시키고 사출성형가공성을 개선한 폴리에테르케톤케톤 혼합수지 조성물의 제조방법 및 이에 의해 제조된 폴리에테르케톤케톤에 관한 것이다. 본 발명에 따르면, (a) 반응기에 1,4-다이페녹시 벤젠 및 1,4-비스(4-페녹시벤조일)벤젠(EKKE) 중에서 선택된 적어도 1종 이상을 테레프탈로일 클로라이드(TPC), 아이소프탈로일 클로라이드(IPC)와 액상의 반응 매개체에 넣고 동시에 용해시켜 반응 용액을 제조하는 단계; (b) 상기 반응 용액의 온도를 낮춘 후 촉매를 투입하는 단계;(c) 상기 촉매 투입 후 반응 용액 내부에 비활성 기체를 직접 불어넣고 교반하여 폴리에테르케톤케톤(PEKK)의 순수수지를 제조하는 단계; 및 (d) 상기 순수수지에 포스파이트(phosphite)계 화합물을 투입하여 믹서로 혼합하는 단계를 포함하는 폴리에테르케톤케톤 혼합수지 조성물의 제조방법이 제공된다. 따라서, PEKK 가공시 열안정성을 개선함과 동시에 중합반응 시, 결정화속도를 향상시켜, 사출성형가공성을 개선하는 효과를 제공한다.