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Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Применить Всего найдено 39. Отображено 39.
30-05-2013 дата публикации

DIRECT CH ARYLATION METHOD USING PALLADIUM-BASED CATALYST

Номер: WO2013077615A1
Автор: LEE, Jae-Suk, EL-SHEHAWY, Ashraf A, MIN, Joon-Keun, MOHAMED, Abdo Nabiha Ibrahim Mahmoud
Принадлежит:

Under 'Heck-type' experimental conditions using Pd(OAc)2/n-Bu4NBr as a catalyst system, aryl-substituted thienopyrazine providing various value increments is explained as a first example of effective and direct regioselective C-H arylation on thieno[3,4-b]pyrazine derivatives and various hetero aryl bromides. The present synthetic method is simpler than a facial method and is used for preparing π-conjugated oligomeric and/or polymer material based on hexylthiophene and thienopyrazine portions, which attracts interest from the electronics industry for making novel synthetic organic materials by using a potential application program. The arylation is more regioselective for a thiophene C-H bond than a pyrazine C-H bond. The optical and electric properties of the synthetic copolymer were examined.

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Номер записи: 1
16-05-2019 дата публикации

METHOD FOR PREPARING HIGH-MELT-STRENGTH POLYPROPYLENE RESIN

Номер: WO2019093630A1
Автор: WOO, Hyun Yul, LEE, Rai Ha, JEONG, Su Jeong, MIN, Joon Keun, SHIN, Eun Hye, CHAE, Byung Hun
Принадлежит:

Disclosed is a method using a metallocene catalyst system so as to control the polymer structure of a diene-modified polypropylene through process simplification, thereby being capable of preparing a hyperbranched polypropylene resin having a low gel content and improved melt strength. The present invention provides a method using a catalyst so as to polymerize propylene and a diene compound, thereby preparing a diene-modified polypropylene resin having a branching index of 0.95 or less, a gel content of 3 wt% or less and an advanced rheometric expansion system (ARES) melt strength of 5 g or more.

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Номер записи: 2
22-05-2020 дата публикации

SUPPORTED CATALYST FOR OLEFIN POLYMERIZATION, AND METHOD FOR PREPARING POLYOLEFIN BY USING SAME

Номер: WO2020101372A1
Автор: MIN, Joon Keun, LEE, Hae In, LEE, Rai Ha, SHIN, Eun Hye, JEONG, Su Jeong, CHAE, Byung Hun
Принадлежит:

The present invention relates to a supported catalyst for olefin polymerization, and a method for preparing a polyolefin by using same, the supported catalyst comprising: a main catalyst comprising a metallocene-based compound; a cocatalyst comprising an organoaluminum-based compound; an aromatic compound in which two or more polar groups selected from a hydroxyl group (-OH), an amine group (-NH2), a thiol group (-SH), a carboxyl group (-COOH) and an amide group (-CONH2) are bonded, and one or more halogen groups are bonded; and a support for supporting the main catalyst, the cocatalyst and the aromatic compound. When olefins are polymerized by using the supported catalyst of the present invention, the catalyst exhibits excellent activity and fouling can be reduced by inhibiting the generation of polyolefin fine powder.

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Номер записи: 3
22-05-2017 дата публикации

내열성이 개선된 폴리카보네이트 공중합체

Номер: KR0101738763B1
Автор: 강소영, 민준근, 황용택, 박관휘
Принадлежит: 롯데케미칼 주식회사

... 비스페놀 A 및 디페닐카보네이트를 용융중합시켜 제조되는 폴리카보네이트 공중합체에 있어서 경제성 있는 단량체로 비스페놀 A를 일부 대체함으로써 개선된 내열성과 함께 투명성 및 우수한 가공성을 지니는 폴리카보네이트 공중합체가 개시된다. 본 발명은 비스페놀 A 및 디페닐카보네이트를 용융중합시켜 제조되는 폴리카보네이트 공중합체에 있어서, 상기 비스페놀 A의 일부가 4,4'-시클로헥실리덴비스페놀(4,4'-Cyclohexylidenebisphenol), 2,2'-비페놀(2,2'-Biphenol) 및 1,5-디히드록시나프탈렌(1,5-Dihydroxynaphthalene)로 대체된 것을 특징으로 하는 폴리카보네이트 공중합체를 제공한다.

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Номер записи: 4
22-12-2017 дата публикации

PRODUCTION METHOD OF POLYPROPYLENE RANDOM COPOLYMER RESIN USING METALLOCENE CATALYST

Номер: KR101811141B1
Автор: MIN, JOON KEUN, JUNG, SUNG WON, WOO, HYUN YUL, LEE, RAI HA, HONG, YOUN JIN, SHIN, EUN HYE, CHAE, BYUNG HUN
Принадлежит: LOTTE CHEMICAL CORPORATION

Disclosed is a production method of a polypropylene random copolymer resin using a metallocene catalyst, the production method which is capable of obtaining a polypropylene random copolymer that reduces a process catalytic activity deteriorating phenomenon and a fouling phenomenon due to the content of ethylene and has improved transparency by producing a random copolymer of propylene and ethylene using the metallocene catalyst. To achieve the purpose, the production method of the present invention comprises the steps of: (a) supplying the metallocene catalyst, propylene and ethylene to a reactor; (b) heating the reactor to perform a polymerization process, and discharging an unreacted gas; and (c) drying a polypropylene random copolymer resin of a solid phase obtained in the reactor. COPYRIGHT KIPO 2018 ...

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Номер записи: 5
04-06-2020 дата публикации

POLYPROPYLENE RESIN HAVING EXCELLENT MELT CHARACTERISTICS, AND PREPARATION METHOD THEREFOR

Номер: WO2020111777A1
Автор: JEONG, Su-Jeong, WOO, Hyun-Yul, MIN, Joon-Keun, LEE, Rai-Ha, SHIN, Eun-Hye, CHAE, Byung-Hun
Принадлежит:

The present invention relates to a high-melt-strength polypropylene resin, and a preparation method therefor. A method for preparing the high-melt-strength polypropylene resin, according to the present invention, comprises the steps of: creating a polypropylene by polymerizing propylene monomers in the presence of a metallocene catalyst; and putting a diene compound and a comonomer into the created polypropylene and unreacted propylene monomers and reacting same, thereby forming a C40 or greater long-chain branch on the main chain of the polypropylene.

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Номер записи: 6
17-10-2017 дата публикации

POLYPROPYLENE RESIN HAVING EXCELLENT MELT STRENGTH

Номер: KR1020170115199A
Автор: CHAE, BYUNG HUN, WOO, HYUN YUL, LEE, RAI HA, MIN, JOON KEUN, JUNG, SUNG WON, HONG, YOUN JIN, SHIN, EUN HYE
Принадлежит:

Disclosed is a polypropylene resin having excellent melt strength, wherein the polypropylene resin has improved melt strength, high molecular weight and wide molecular weight distribution by using a specific metallocene catalyst. The present invention relates to the polypropylene resin prepared by polymerizing propylene and a C4-C20 diene compound using the metallocene catalyst, and provides the polypropylene resin having melting index of 0.1-100 g/10min at the temperature of 230°C and 2.16 kg weight, melt strength in an advanced rheometric expansion system (ARES) of 5-100 g, and a gel content of 10 wt% or less. COPYRIGHT KIPO 2017 ...

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Номер записи: 7
19-12-2017 дата публикации

용융 장력이 우수한 폴리프로필렌 수지

Номер: KR0101810317B1
Автор: 채병훈, 우현율, 이래하, 민준근, 정성원, 홍연진, 신은혜
Принадлежит: 롯데케미칼 주식회사

... 특정 메탈로센 촉매를 이용하여 개선된 용융 강도, 고분자량 및 넓은 분자량 분포를 갖는 용융 장력이 우수한 폴리프로필렌 수지가 개시된다. 본 발명은 메탈로센 촉매를 이용하여 프로필렌 및 C4-C20의 디엔 화합물을 중합시켜 제조되는 폴리프로필렌 수지로서, 용융지수(230℃, 2.16kg 하중)가 0.1~100g/10min이고, 용융 장력(ARES(Advanced Rheometric Expansion System) Melt Strength)이 5~100g이고, 겔 함량이 10중량% 이하인 것을 특징으로 하는 폴리프로필렌 수지를 제공한다.

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Номер записи: 8
07-02-2018 дата публикации

PREPARATION METHOD OF POLYMER COMPOUND WITH BRUSH STRUCTURE

Номер: KR1020180012907A
Автор: JUNG, SUNG WON, SHIN, EUN HYE, HONG, YOUN JIN, MIN, JOON KEUN, WOO, HYUN YUL, LEE, RAI HA, CHAE, BYUNG HUN
Принадлежит:

Disclosed is a preparation method of a polymer compound with a brush structure, which can control a molecular weight, a chemical composition, physical characteristics and structure of the polymer by designing a polymer at a molecule level, and can design characteristics of each material in accordance with requests of a user accordingly. The preparation method of the present invention comprises the steps of: (a) injecting one or more monomers selected from ethylene, olefin and diene into a first reactor; (b) injecting a first catalyst into the first reactor to perform a main chain polymerization reaction process; (c) injecting an olefin monomer and a second catalyst into a second reactor to perform a polymerization reaction process; and (d) injecting a main chain polymerization reacted polymer of the step (b) and a polymerized olefin polymer of the step (c) into a third reactor to perform a side chain polymerization reaction process. COPYRIGHT KIPO 2018 (AA) Monomer, Comonomer, Grafting ...

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Номер записи: 9
19-03-2025 дата публикации

METALLOCENE COMPOUND AND CATALYST FOR POLYMERIZATION OF POLYOLEFIN COMPRISING SAME

Номер: KR102784732B1
Автор: 이해인, 민준근, 이래하, 신은혜, 정수정, 김호석, 채병훈
Принадлежит: 롯데케미칼 주식회사

The present invention provides a metallocene compound that can be firmly supported on a carrier by improving binding force with the carrier, and a catalyst for polymerization of polyolefin comprising the metallocene compound. According to the present invention, provided is the metallocene compound into which a silane group is introduced.

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Номер записи: 10
03-01-2013 дата публикации

POLYMERIZATION METHOD FOR AMPHIPHILIC BLOCK COPOLYMERS AND METHOD FOR PREPARING TITANIUM OXIDE NANOSTRUCTURES USING BLOCK COPOLYMER MICELLES

Номер: WO2013002462A1
Автор: LEE, Jae-Suk, KUMAR, Santosh, MIN, Joon Keun
Принадлежит:

Disclosed are a polymerization method for amphiphilic block copolymers and a method for preparing nanostructures using block copolymer micelles. The polymerization method for amphiphilic block copolymers enables high-yield synthesis of a polystyrene-b-poly(2-vinylpiridine) (PS-b-P2VP) and (P2VP-b-PS), which are low-molecular amphiphilic diblock copolymers having different block ratios, using a living radical polymerization using organotellurium (TERP). The method for preparing nanostructures using block copolymer micelles enables preparation of a highly dense titanium dioxide nanoparticle (TiO2) array by using the site-selective reaction of titanium tetra isopropoxide in P2VP domains of a P2VP-b-PS micellar film in toluene through a sol-gel process.

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Номер записи: 11
13-10-2017 дата публикации

METHOD FOR PRODUCING POLYPROPYLENE RESIN HAVING HIGH MELT TENSION

Номер: KR1020170114064A
Автор: MIN, JOON KEUN, JUNG, SUNG WON, WOO, HYUN YUL, LEE, RAI HA, HONG, YOUN JIN, SHIN, EUN HYE, CHAE, BYUNG HUN
Принадлежит:

Disclosed is a method for producing a hyperbranched polypropylene resin having improved melt tension by controlling a polymer structure of a diene-modified polypropylene through a process simplification using a metallocene catalyst system. The present invention provides a method for producing a diene-modified polypropylene resin having a branching index of 0.95 or less, a graft density of 0.005 or more, a gel content of 5 wt% or less, and melt strength in an advanced rheometric expansion system (ARES) of 5 g or more by direct contact of propylene and a diene compound using a metallocene catalyst. COPYRIGHT KIPO 2017 ...

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Номер записи: 12
28-12-2017 дата публикации

METHOD OF MANUFACTURING HIGH-ABSORPTIVE RESIN

Номер: KR101812895B1
Автор: MIN, JOON KEUN, WOO, HYUN YUL, LEE, RAI HA, HONG, YOUN JIN, SHIN, EUN HYE, JUNG, SUNG WON, CHAE, BYUNG HUN
Принадлежит: LOTTE CHEMICAL CORPORATION

Disclosed is a method of manufacturing high-absorptive resin by polymerizing a monomer composition including an acrylic acid monomer composition, a polymerization initiator, a foaming agent, and a nonionic surfactant, and then, making the composition go through smashing, drying, and cross-linking procedures. The present invention includes: a step (a) of forming a function gel-phase polymer by thermally or optically polymerizing a monomer composition including an acrylic acid monomer composition, which has partially neutralized acidity, a first cross-linking agent, a polymerization initiator, a foaming agent, and a nonionic surfactant; a step (b) of smashing the function gel-phase polymer; a step (c) of drying the smashed polymer at 150-250°C; a step (d) of drying the dried polymer; and a step (e) of making a surface cross-linking reaction to the smashed polymer under the existence of a second cross-linking agent. COPYRIGHT KIPO 2018 ...

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Номер записи: 13
08-08-2018 дата публикации

브러쉬 구조를 가지는 고분자 화합물의 제조방법

Номер: KR0101878046B1
Автор: 정성원, 신은혜, 홍연진, 민준근, 우현율, 이래하, 채병훈
Принадлежит: 롯데케미칼 주식회사

... 브러쉬 구조를 가지는 고분자 화합물의 제조방법에 있어, 분자 레벨에서 고분자를 설계함으로써 고분자의 분자량, 화학적 조성, 물리적 특성, 구조를 제어할 수 있으며, 이에 따라, 각각의 소재가 갖추어야 할 특성을 사용자의 요구에 맞게 설계가 가능한 브러쉬 구조를 가지는 고분자 화합물의 제조방법이 개시된다. 본 발명은 (a) 에틸렌, 올레핀 및 디엔에서 선택된 1종 이상의 모노머를 제1반응기에 투입하는 단계; (b) 상기 반응기에 제1촉매를 투입하여 주쇄중합을 수행하는 단계; (c) 제2반응기에 올레핀 모노머와 제2촉매를 투입하여 중합을 수행하는 단계; 및 (d) 제3반응기에 (b) 단계의 주쇄중합된 폴리머 및 (c)단계의 중합된 올레핀 폴리머를 투입하여 측쇄중합하는 단계를 포함하는 브러쉬 구조를 가지는 고분자 화합물의 제조방법을 제공한다.

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Номер записи: 14
07-02-2019 дата публикации

내스크래치 특성을 갖는 수지 조성물

Номер: KR1020190011382A
Автор: 신은혜, 채병훈, 이해인, 민준근
Принадлежит:

... 본 발명은 내스크래치 특성을 갖는 수지 조성물에 관한 것으로, 보다 상세하게는 분자 레벨에서 고분자를 설계함으로써 고분자의 분자량, 화학적 조성, 물리적 특성 또는 구조가 제어된 브러쉬 구조를 가지는 에틸렌-올레핀-디엔 공중합체 및 폴리올레핀을 포함하여 내스크래치 특성이 향상된 수지 조성물에 관한 것이다. 이러한 본 발명의 수지 조성물에 포함되는 원료 성분은 고분자로서 중합 시 유해 잔재 성분이 포함되지 않음과 더불어, 폴리머 자체의 구조가 제어되어서 연질 및 기타 성능이 부여되는 바, 본 발명에 따른 수지 조성물은 내스크래치 특성이 향상되어 스크래치가 발생하기 쉬운 차량용 내장재, 인조 가죽 등에 유용하게 적용할 수 있다.

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Номер записи: 15
08-08-2018 дата публикации

브러쉬 구조를 가지는 고분자 화합물의 제조방법

Номер: KR0101878047B1
Автор: 신은혜, 정성원, 홍연진, 민준근, 우현율, 이래하, 채병훈
Принадлежит: 롯데케미칼 주식회사

... 브러쉬 구조를 가지는 고분자 화합물의 제조방법에 있어, 분자 레벨에서 고분자를 설계함으로써 고분자의 분자량, 화학적 조성, 물리적 특성, 구조를 제어할 수 있으며, 이에 따라, 각각의 소재가 갖추어야 할 특성을 사용자의 요구에 맞게 설계가 가능한 브러쉬 구조를 가지는 고분자 화합물의 제조방법이 개시된다. 본 발명은 (a) 에틸렌, 올레핀 및 디엔에서 선택된 1종 이상의 모노머를 제1반응기에 투입하는 단계; (b) 상기 반응기에 제1촉매를 투입하여 주쇄중합을 수행하는 단계; (c) 제2반응기에 올레핀 모노머와 제2촉매를 투입하여 중합을 수행하는 단계; 및 (d) 제3반응기에 (b) 단계의 주쇄중합된 폴리머 및 (c)단계의 중합된 올레핀 폴리머를 투입하여 측쇄중합하는 단계를 포함하는 고분자 화합물의 제조방법에 있어서 상기 (c)단계의 중합반응 시, 하기의 식 1에 의하여 생성되는 올레핀 폴리머의 분자량을 조절하여 상기 (d)단계의 제3반응기에 공급하는 것을 특징으로 하는 브러쉬 구조를 가지는 고분자 화합물의 제조방법을 제공한다. (식 1) ...

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Номер записи: 16
08-02-2019 дата публикации

넓은 분자량 분포를 갖는 폴리올레핀 제조용 다핵 메탈로센계 촉매 및 상기 촉매를 이용한 폴리올레핀의 제조방법

Номер: KR1020190011845A
Автор: 신은혜, 민준근, 채병훈, 이해인, 임진묵, 박성훈
Принадлежит:

... 본 발명은 하기 화학식 1로 나타내는 다핵 메탈로센계 촉매를 개시한다. 또한, 본 발명은 상기 다핵 메탈로센계 촉매의 주촉매와 알킬알루미늄옥산 등의 조촉매를 포함하는 촉매 시스템 하에서 올레핀계 단량체를 단독중합 또는 스티렌 또는 스티렌 유도체와 공중합함으로써 분자량 분포가 넓은 폴리올레핀을 제조하는 폴리올레핀의 제조방법을 개시한다. (1) (상기 식에서, 각각의 치환기는 청구항 1에서의 정의와 같다).

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Номер записи: 17
21-03-2017 дата публикации

TRANSPARENT PMMA RESIN COMPOSITION WITH IMPROVED CHEMICAL RESISTANCE

Номер: KR1020170031335A
Автор: BAEK, WOON SEON, KIM, KYUNG TAE, MIN, JOON KEUN, KIM, MYUNG WOOK
Принадлежит:

Disclosed is a chemical resistant poly(methyl methacrylate) (PMMA) resin composition without loss of turbidity and transmissivity by using a specific compatibilizing agent to a PMMA resin. The PMMA resin composition with improved chemical resistance comprises 90-99.9 wt% of a PMMA copolymer and 0.1-10 wt% of polyethylene glycol. COPYRIGHT KIPO 2017 ...

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Номер записи: 18
23-11-2018 дата публикации

METHOD FOR MANUFACTURING ETHYLENE-PROPYLENE RANDOM COPOLYMER USING POLYOLEFIN CATALYST

Номер: KR101903892B1
Автор: MIN, JOON KEUN, WOO, HYUN YUL, JEONG, SU JEONG, LEE, RAI HA, SHIN, EUN HYE, CHAE, BYUNG HUN
Принадлежит: LOTTE CHEMICAL CORPORATION

The present invention provides a method for manufacturing an ethylene-propylene random copolymer having high molecular weight and altering arrangement index of ethylene using a novel metallocene catalyst represented by chemical formula 1 and having a small crystal size to have enhanced transparency upon injection. The manufacturing method comprises a step of polymerizing ethylene and propylene using a transition metal catalyst composition comprising a transition metal compound represented by chemical formula 1 and at least one promoter compound. In chemical formula 1, M is a Group 4 transition metal; Q^1 and Q^2 are each independently a halogen, a (C_1-C_20)alkyl, a (C_2-C_20)alkenyl, a (C_2-C_20)alkynyl, a (C_6-C_20)aryl, a (C_1-C-20)alkyl, a (C_6-C_20)aryl, a (C_6-C_20)aryl(C_1-C_20)alkyl, a (C_1-C_20)alkylamido, a (C_6-C_20)arylamido or a (C_1-C_20)alkylidene. COPYRIGHT KIPO 2019 ...

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Номер записи: 19
07-02-2018 дата публикации

PREPARATION METHOD OF POLYMER COMPOUND WITH BRUSH STRUCTURE

Номер: KR1020180012908A
Автор: SHIN, EUN HYE, JUNG, SUNG WON, HONG, YOUN JIN, MIN, JOON KEUN, WOO, HYUN YUL, LEE, RAI HA, CHAE, BYUNG HUN
Принадлежит:

Disclosed is a preparation method of a polymer compound with a brush structure, the preparation method which can control a molecular weight, a chemical composition, physical characteristics and structure of the polymer by designing a polymer at a molecule level, and can design characteristics of each material in accordance with requests of a user accordingly. The preparation method of the present invention comprises the steps of: (a) injecting one or more monomers selected from ethylene, olefin and diene into a first reactor; (b) injecting a first catalyst into the first reactor to perform a main chain polymerization reaction process; (c) injecting an olefin monomer and a second catalyst into a second reactor to perform a polymerization reaction process; and (d) injecting a main chain polymerization reacted polymer of the step (b) and a polymerized olefin polymer of the step (c) into a third reactor to perform a side chain polymerization reaction process, wherein, when performing the polymerization ...

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Номер записи: 20
22-05-2020 дата публикации

SUPPORTED CATALYST FOR PROPYLENE POLYMERIZATION AND METHOD FOR PRODUCING POLYPROPYLENE RESIN USING SAME

Номер: WO2020101373A1
Автор: MIN, Joon Keun, SHIN, Eun Hye, LEE, Rai Ha, LEE, Hae In, JEONG, Su Jeong, CHAE, Byung Hun
Принадлежит:

The present invention relates to a supported catalyst for propylene polymerization in which a first transition metal compound contributing to the production of crystalline polypropylene and a second transition metal compound contributing to the production of rubbery polypropylene are co-supported, and a method for producing a polypropylene resin using same. By using the supported catalyst, according to the present invention, it is possible to produce, by a single step of propylene polymerization, a polypropylene resin in which crystalline polypropylene and rubbery polypropylene are simultaneously formed .

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Номер записи: 21
12-10-2017 дата публикации

PROPYLENE-DIENE COPOLYMER RESIN HAVING EXCELLENT MELT TENSION

Номер: WO2017176074A1
Автор: CHAE, Byung Hun, WOO, Hyun Yul, LEE, Rai Ha, MIN, Joon Keun, JUNG, Sung Won, HONG, Youn Jin, SHIN, Eun Hye
Принадлежит:

Disclosed is a propylene-diene copolymer resin having excellent melt tension, with improved melt strength, high molecular weight and broad molecular weight distribution by using a specific metallocene catalyst system. The present invention provides a propylene-diene copolymer resin produced by polymerizing propylene and a diene compound of C4-C20 by using a metallocene catalyst system, wherein the propylene-diene copolymer resin has a melt index (2.16 kg load at 230℃) of 0.1-100 g/10 min and a melt tension (advanced rheometric expansion system (ARES)) of 5-100 g.

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Номер записи: 22
01-06-2018 дата публикации

POLYOLEFIN CATALYST AND METHOD FOR MANUFACTURING POLYOLEFIN USING SAME

Номер: KR1020180058249A
Автор: CHAE, BYUNG HUN, MIN, JOON KEUN, JUNG, SUNG WON, HONG, YOUN JIN, WOO, HYUN YUL
Принадлежит:

Disclosed are a catalyst having a high molecular weight by using a novel metallocene catalyst and a method for manufacturing a polyolefin using the same. The present invention provides a transition metal compound represented by chemical formula 1. COPYRIGHT KIPO 2018 ...

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Номер записи: 23
03-11-2017 дата публикации

METHOD FOR MANUFACTURING ETHYLENE-ALPHA-OLEFIN COPOLYMER USING NEW TRANSITION METAL

Номер: KR101793388B1
Автор: HONG, YOUN JIN, SHIN, EUN HYE, JUNG, SUNG WON, WOO, HYUN YUL, LEE, RAI HA, MIN, JOON KEUN, CHAE, BYUNG HUN
Принадлежит: LOTTE CHEMICAL CORPORATION

A method for manufacturing ethylene-alpha-olefin copolymer having a high conversion ratio of a comonomer by using a new transition metal with excellent catalytic activity and having a wide molecular weight distribution is disclosed. The present invention provides a method for manufacturing ethylene-alpha-olefin, which comprises a step for polymerizing a monomer containing ethylene-alpha-olefin copolymer under a catalyst containing a transition metal compound represented by chemical formula 1. COPYRIGHT KIPO 2017 ...

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Номер записи: 24
02-04-2018 дата публикации

새로운 전이금속을 사용한 에틸렌-알파-올레핀-디엔 삼중합체 제조방법

Номер: KR0101844152B1
Автор: 홍연진, 신은혜, 정성원, 우현율, 이래하, 민준근, 채병훈
Принадлежит: 롯데케미칼 주식회사

... 기존의 에틸렌/1-옥텐 등 에틸렌/α-올레핀 공중합체에 1,5-헥사디엔 등 올레핀 형태의 디엔을 첨가함으로써 중합과 동시에 일부 가교체가 형성이 되어 인장 신율 및 인장 강도가 향상된 중합체의 제조가 가능하도록 하는 방법이 개시된다. 본 발명은 하기 화학식 1로 표시되는 전이금속 화합물을 포함하는 촉매 하에 에틸렌, α-올레핀 및 디엔을 포함하는 단량체를 중합시키는 단계를 포함하는 에틸렌-α-올레핀-디엔 삼중합체 제조방법을 제공한다. [화학식 1] ...

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Номер записи: 25
30-05-2013 дата публикации

LOW BAND GAP COPOLYMER AND METHOD FOR MANUFACTURING SAME

Номер: WO2013077613A1
Автор: LEE, Jae-Suk, EL-SHEHAWY, Ashraf A, MIN, Joon-Keun, MOHAMED, Abdo Nabiha Ibrahim Mahmoud
Принадлежит:

The present invention relates to a low band gap copolymer and to a method for manufacturing same. Particularly, the present invention provides a copolymer having a low band gap and having various other good physical properties that are required. In addition, the present invention provides a method for manufacturing the copolymer.

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Номер записи: 26
03-04-2017 дата публикации

HIGH HEAT-RESISTANT POLYCARBONATE BLOCK COPOLYMER USING SOLID-STATE POLYMERIZATION

Номер: KR1020170036286A
Автор: PARK, KWAN HWI, HWANG, YONG TAEK, MIN, JOON KEUN, KANG, SO YOUNG
Принадлежит:

Disclosed is a high heat-resistant polycarbonate block copolymer having improved thermal stability, while maintaining conventional polycarbonate properties. The high heat-resistant polycarbonate block copolymer comprises: (a) an amorphous polycarbonate prepolymer including a monomer represented by chemical formula 1 and a repetitive unit represented by chemical formula 2 by polymerizing an aryl carbonate; and (b) an amorphous high heat-resistant polycarbonate prepolymer including a monomer represented by chemical formula 3 and a repetitive unit represented by chemical formula 4 by polymerizing the aryl carbonate. COPYRIGHT KIPO 2017 ...

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Номер записи: 27
13-10-2017 дата публикации

SUPPORTED CATALYST FOR PROPYLENE POLYMERIZATION

Номер: KR1020170114063A
Автор: WOO, HYUN YUL, LEE, RAI HA, MIN, JOON KEUN, JUNG, SUNG WON, HONG, YOUN JIN, SHIN, EUN HYE, CHAE, BYUNG HUN
Принадлежит:

Disclosed is a method for manufacturing a polypropylene resin having improved melting tension by comprising a long chain branch (LCB) through an in-situ polymerization process using a specific metallocene catalyst system. The present invention is to provide a catalyst used for manufacturing a diene-modified polypropylene resin through a contact of propylene and diene compounds. The catalyst comprises: a transition compound represented by chemical formula 1; and one or more promoter compounds selected from the group consisting of compounds represented by chemical formula 2, -[Al(R17)-O]_n-, chemical formula 3, A(R18)_3 and chemical formula 4, [L-H]+[Z(B)_4]- or [L]+[Z(B)_4]-. COPYRIGHT KIPO 2017 ...

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Номер записи: 28
15-03-2018 дата публикации

METHOD FOR MANUFACTURING ETHYLENE/ALPHA OLEFIN/DIENE TERPOLYMER USING NOVEL TRANSITION METAL COMPOUND

Номер: KR1020180027695A
Автор: HONG, YOUN JIN, SHIN, EUN HYE, JUNG, SUNG WON, WOO, HYUN YUL, LEE, RAI HA, MIN, JOON KEUN, CHAE, BYUNG HUN
Принадлежит:

Disclosed is a method for manufacturing a polymer having enhanced tensile elongation and tensile strength by adding olefin-shaped diene such as 1,5-hexadiene to a conventional ethylene/α-olefin copolymer such as ethylene/1-octene to polymerize and at the same time form some cross-linkers. The present invention provides a method for manufacturing an ethylene/α-olefin/diene terpolymer, comprising a step of polymerizing monomers including ethylene, α-olefin and diene with a catalyst containing a transition metal compound, which is represented by chemical formula 1. COPYRIGHT KIPO 2018 ...

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Номер записи: 29
06-03-2017 дата публикации

POLYCARBONATE COPOLYMER HAVING IMPROVED HEAT RESISTANCE

Номер: KR1020170023616A
Автор: KANG, SO YOUNG, MIN, JOON KEUN, HWANG, YONG TAEK, PARK, KWAN HWI
Принадлежит:

Disclosed in the present invention is a polycarbonate copolymer which possesses improved heat resistance, transparency and excellent processability by replacing bisphenol A with an economical monomer when producing the polycarbonate copolymer through melt polymerization of the bisphenol A and diphenyl carbonate. According to the present invention, the polycarbonate copolymer, produced through melt polymerization of bisphenol A and diphenyl carbonate, is characterized in that part of the bisphenol A is replaced with 4,4′-cyclohexylidenebisphenol, 2,2′-biphenol, and 1,5-dihydroxynaphthalene. COPYRIGHT KIPO 2017 ...

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Номер записи: 30
19-12-2017 дата публикации

프로필렌 중합용 담지 촉매

Номер: KR0101810316B1
Автор: 우현율, 이래하, 민준근, 정성원, 홍연진, 신은혜, 채병훈
Принадлежит: 롯데케미칼 주식회사

... 특정 메탈로센 촉매 시스템을 이용한 1-스텝 인-시츄(in-situ) 중합반응 공정으로 긴 곁가지(LCB)를 포함하여 용융장력이 개선된 폴리프로필렌 수지를 제조할 수 있는 방법이 개시된다. 본 발명은 프로필렌 및 디엔 화합물을 접촉시켜 디엔 개질된 폴리프로필렌 수지를 제조하기 위해 사용되는 촉매로서, 화학식 1로 표시되는 전이금속 화합물; 및 화학식 2 내지 4로 표시되는 화합물로 이루어진 군에서 선택되는 하나 이상의 조촉매 화합물;이 담지된 촉매를 제공한다.

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Номер записи: 31
18-04-2019 дата публикации

POLYOLEFIN CATALYST AND METHOD FOR PREPARING POLYOLEFIN USING SAME

Номер: WO2019074302A1
Автор: MIN, Joon Keun, JEONG, Su Jeong, WOO, Hyun Yul, LEE, Rai Ha, SHIN, Eun Hye, CHAE, Byung Hun
Принадлежит:

Disclosed are a novel metallocene catalyst and a method for preparing a polyolefin having a high molecular weight and a low melt index by using the same. The present invention provides a transition metal compound represented by formula 1.

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Номер записи: 32
31-05-2018 дата публикации

POLYOLEFIN CATALYST AND METHOD FOR PREPARING POLYOLEFIN BY USING SAME

Номер: WO2018097468A1
Автор: CHAE, Byung Hun, MIN, Joon Keun, JUNG, Sung Won, HONG, Youn Jin, WOO, Hyun Yul
Принадлежит:

Disclosed are: a catalyst having a high molecular weight by using a novel metallocene catalyst; a method for preparing a polyolefin by using the same; and a method for preparing an ethylene-propylene random copolymer having a high molecular weight and ethylene syndiotactic index and having a small crystal size, thereby having improved transparency during injection. The present invention provides a transition metal compound represented by chemical formula 1.

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Номер записи: 33
14-11-2017 дата публикации

SUPER ABSORBENT POLYMER AND MANUFACTURING THEREOF

Номер: KR101797391B1
Автор: MIN, JOON KEUN, HONG, YOUN JIN, SHIN, EUN HYE, JUNG, SUNG WON, WOO, HYUN YUL, LEE, RAI HA, CHAE, BYUNG HUN
Принадлежит: LOTTE CHEMICAL CORPORATION

Disclosed are a super absorbent resin manufactured by polymerizing a monomer composition comprising an acrylic acid monomer and a lactone-based monomer, grinding and drying the same and performing surface cross-linking; and a manufacturing method thereof. To this end, provided is a cross-linking polymer which polymerizes and internally cross-links a composition comprising an acrylic acid monomer which has an acid group and in which at least part of the acid group is polymerized, and a monomer represented by chemical formula 1 or 2, and a super absorbent resin comprising a surface cross-linking layer formed on the surface of the cross-linking polymer. COPYRIGHT KIPO 2017 ...

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Номер записи: 34
03-11-2017 дата публикации

METHOD FOR MANUFACTURING ETHYLENE/PROPYLENE/DIENE TERPOLYMER USING NEW TRANSITION METAL

Номер: KR101792956B1
Автор: HONG, YOUN JIN, SHIN, EUN HYE, JUNG, SUNG WON, WOO, HYUN YUL, LEE, RAI HA, MIN, JOON KEUN, CHAE, BYUNG HUN
Принадлежит: LOTTE CHEMICAL CORPORATION

A method for manufacturing ethylene/propylene/diene terpolymer having a high conversion ratio of a comonomer by using a new transition metal with excellent catalytic activity and having a wide molecular weight distribution is disclosed. The present invention provides a method for manufacturing ethylene/propylene/diene, which comprises a step for polymerizing a monomer containing ethylene/propylene/diene terpolymer under a catalyst containing a transition metal compound represented by chemical formula 1. COPYRIGHT KIPO 2017 ...

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Номер записи: 35
30-01-2018 дата публикации

고상중합을 이용한 고내열 폴리카보네이트 블록 공중합체

Номер: KR0101813327B1
Автор: 박관휘, 황용택, 민준근, 강소영
Принадлежит: 롯데케미칼 주식회사

... 기존의 폴리카보네이트 특성을 유지하면서, 향상된 열적 안정성을 갖는 고내열 폴리카보네이트 블록 공중합체가 개시된다. 본 발명은 (a) 화학식 1로 표현되는 단량체와 아릴 카보네이트가 중합되어 화학식 2로 표현되는 반복단위체를 포함하는 비결정성 폴리카보네이트 프리폴리머; 및 (b) 화학식 3으로 표현되는 단량체와 아릴 카보네이트가 중합되어 화학식 4로 표현되는 반복단위체를 포함하는 비결정성 고내열 폴리카보네이트 프리폴리머;로 구성된 고내열 폴리카보네이트 블록 공중합체를 제공한다.

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Номер записи: 36
29-06-2018 дата публикации

고용융장력 폴리프로필렌 수지 제조방법

Номер: KR0101859286B1
Автор: 이래하, 우현율, 민준근, 정수정, 홍연진, 신은혜, 채병훈, 정성원
Принадлежит: 롯데케미칼 주식회사

... 메탈로센 촉매를 이용하여 균일한 장쇄분지를 포함하는 디엔 개질된 폴리프로필렌 구조를 연속 공정으로 제조하는 방법이 개시된다. 본 발명은 반응기에 프로필렌 단량체를 포함하는 반응물을 투입하여 메탈로센 촉매 하에서 폴리프로필렌 주쇄를 예비중합하고, 상기 반응기를 승온시킨 후 디엔 화합물을 분할 주입 및 반응시켜 상기 폴리프로필렌 주쇄에 장쇄분지를 형성하여 디엔 개질된 폴리프로필렌 수지를 제조하는 방법을 제공한다.

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Номер записи: 37
06-11-2017 дата публикации

고용융장력 폴리프로필렌 수지 제조방법

Номер: KR0101793823B1
Автор: 민준근, 정성원, 우현율, 이래하, 홍연진, 신은혜, 채병훈
Принадлежит: 롯데케미칼 주식회사

... 메탈로센 촉매 시스템을 이용하여 공정 단순화를 통해 디엔 개질된 폴리프로필렌의 고분자 구조를 제어함으로써 용융장력이 개선된 하이퍼 브렌치 폴리프로필렌 수지를 제조할 수 있는 방법이 개시된다. 본 발명은 메탈로센 촉매를 이용하여 프로필렌 및 디엔 화합물을 직접 접촉시켜 분지 지수(Branching index)가 0.95 이하, 그래프트 밀도(graft density)가 0.005 이상, 겔 함량이 5중량% 이하 및 용융장력(ARES(Advanced Rheometric Expansion System) Melt Strength)이 5g 이상인 디엔 개질된 폴리프로필렌 수지를 제조하는 방법을 제공한다.

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Номер записи: 38
02-10-2018 дата публикации

폴리올레핀 촉매 및 이를 이용한 폴리올레핀 제조방법

Номер: KR0101903245B1
Автор: 채병훈, 민준근, 정성원, 홍연진, 우현율
Принадлежит: 롯데케미칼 주식회사

... 신규 메탈로센 촉매를 이용하여 고분자량을 갖도록 하는 촉매와 이를 이용한 폴리올레핀 제조방법이 개시된다. 본 발명은 하기 화학식 1로 표시되는 전이금속 화합물을 제공한다. [화학식 1] ...

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Номер записи: 39