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Небесная энциклопедия

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 13. Отображено 13.
08-11-2018 дата публикации

올레핀 중합용 촉매 조성물 및 폴리올레핀 공중합체의 제조방법

Номер: KR0101901016B1
Автор: 박상호, 김화규, 한정은, 양다애, 황혜인, 정재훈, 윤승웅
Принадлежит: 롯데케미칼 주식회사

... 본 발명은 특정 화합물 및 메탈로센 화합물을 포함하는 촉매 조성물의 존재 하에, 1종 이상의 올레핀계 단량체를 중합하는 단계를 포함하는 폴리올레핀 공중합체의 제조방법 및 이로부터 제조된 폴리올레핀 공중합체에 관한 것이다.

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Номер записи: 1
04-01-2018 дата публикации

METHOD FOR PREPARING POLYOLEFIN

Номер: KR101815296B1
Автор: JUNG, JAE HOON, YANG, DA AE, KIM, HWA KYU, HAN, JUNG EUN, PARK, SANG HO, HWANG, HYE IN, YOON, SEUNG WOONG
Принадлежит: LOTTE CHEMICAL CORPORATION

According to a method for manufacturing polyolefin of the present invention, provided is polyolefin having wide molecular weight distribution by using a metallocene catalyst. Also, by adjusting process conditions of each step, provided is polyolefin having wide target molecular weight distribution in a single reactor so economic feasibility is excellent. COPYRIGHT KIPO 2018 (AA) Example 1 (BB) Example 2 (CC) Example 3 (DD) Example 4 (EE) Comparative example 1 (FF) Comparative example 2 ...

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Номер записи: 2
04-04-2017 дата публикации

POLYOLEFIN PRODUCTION METHOD AND POLYOLEFIN PRODUCED THEREBY

Номер: KR1020170037194A
Автор: YANG, DA AE, JUNG, JAE HOON, KIM, HWA KYU, HAN, JUNG EUN, PARK, SANG HO, YOON, SEUNG WOONG
Принадлежит:

The present invention relates to a method for producing polyolefin through application of a catalyst which includes a catalytic compound consisting of a specific component in a first reactor, while differently regulating polymerization condition of the first reactor and a second reactor. COPYRIGHT KIPO 2017 (AA) Example 1 (BB) Example 2 (CC) Comparative example 1 ...

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Номер записи: 3
14-08-2017 дата публикации

폴리에틸렌의 제조방법 및 이로부터 제조된 폴리에틸렌

Номер: KR0101767317B1
Автор: 한정은, 박준성, 김화규, 양다애, 정재훈, 박상호, 윤승웅
Принадлежит: 롯데케미칼 주식회사

... 본 발명은 중합 조건을 조절하고, 특정 성분으로 이루어진 촉매 화합물을 포함하는 촉매를 적용하여 폴리에틸렌을 제조함으로써, 초저밀도를 나타내는 폴리에틸렌을 제공한다.

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Номер записи: 4
03-04-2017 дата публикации

METHOD FOR PREPARING POLYETHYLENE AND POLYETHYLENE PREPARED THEREFROM

Номер: KR1020170036256A
Автор: HAN, JUNG EUN, PARK, JUN SEONG, KIM, HWA KYU, YANG, DA AE, JUNG, JAE HOON, PARK, SANG HO, YOON, SEUNG WOONG
Принадлежит:

The present invention provides a polyethylene, which exhibits very low density by applying a catalyst, which controls polymerization conditions and contains a catalyst compound consisting of a specific component. A method for preparing the polyethylene comprises the following steps: a) injecting and polymerizing a catalyst comprising a catalyst compound and a co-catalyst compound, an activator, and ethylene in a reactor to produce a pre-polymer; and b) injecting and polymerizing a comonomer, hydrogen and ethylene into the reactor, in which the pre-polymer is present, to prepare a polymer. COPYRIGHT KIPO 2017 ...

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Номер записи: 5
18-05-2016 дата публикации

SUPPORTED CATALYST FOR POLYMERIZING OLEFIN AND METHOD FOR PRODUCING OLEFIN POLYMER PRODUCED BY USING SAME

Номер: KR101618460B1
Автор: KIM, HWA KYU, HAN, JUNG EUN, YANG, DA AE, PARK, SANG HO, YOON, SEUNG WOONG
Принадлежит: LOTTE CHEMICAL CORPORATION

The present invention relates to a supported catalyst for polymerizing olefin, and to a method for producing an olefin polymer using the same. According to the present invention, the supported catalyst is produced by supporting, on a carrier, two certain kinds of metallocene catalyst compound along with a co-catalyst compound. More specifically, the purpose of the present invention is to provide a supported catalyst for polymerizing olefin, wherein the supported catalyst has high catalytic activity and is capable of efficiently regulating distribution of molecular weight of the olefin polymer. COPYRIGHT KIPO 2016 ...

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Номер записи: 6
20-12-2017 дата публикации

폴리올레핀의 제조방법 및 이로부터 제조된 폴리올레핀

Номер: KR0101810740B1
Автор: 양다애, 정재훈, 김화규, 한정은, 박상호, 윤승웅
Принадлежит: 롯데케미칼 주식회사

... 본 발명은 제1 반응기와 제2 반응기의 중합 조건을 상이하게 조절함과 동시에, 상기 제1 반응기에 특정 성분으로 이루어진 촉매 화합물을 포함하는 촉매를 적용하여 폴리올레핀을 제조하는 방법에 관한 것이다.

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Номер записи: 7
08-06-2016 дата публикации

MANUFACTURING METHOD OF ETHYLENE POLYMER AND ETHYLENE POLYMER MANUFACTURED THEREBY

Номер: KR1020160064570A
Автор: KIM, HWA KYU, YANG, DA AE, HAN, JUNG EUN, PARK, SANG HO, YOON, SEUNG WOONG
Принадлежит:

Provided is a manufacturing method of an ethylene polymer having particular molecular weight distribution and a high molecular weight. The manufacturing method of the ethylene polymer of the present invention comprises a step of polymerizing ethylene only, or ethylene and a monomer under the presence of a catalyst. The catalyst comprises: (A) a main catalyst compound represented by chemical formula I; and (B) at least one type of a promotor compound selected from the group comprising compounds represented by chemical formula III-1 and chemical formula III-2. COPYRIGHT KIPO 2016 ...

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Номер записи: 8
10-04-2017 дата публикации

에틸렌 중합체의 제조방법 및 이의 제조방법으로 제조된 에틸렌 중합체

Номер: KR0101720843B1
Автор: 김화규, 양다애, 한정은, 박상호, 윤승웅
Принадлежит: 롯데케미칼 주식회사

... 본 발명은 특정 메탈로센계 전이 금속 화합물을 주촉매 화합물로 포함하는 촉매 존재 하에 에틸렌 단독, 또는 에틸렌과 단량체를 중합하여 에틸렌 중합체를 제조하는 방법에 관한 것이다.

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Номер записи: 9
04-04-2018 дата публикации

METHOD FOR PREPARING POLYOLEFIN AND POLYOLEFIN PREPARED THEREFROM

Номер: KR101845626B1
Автор: YANG, DA AE, JUNG, JAE HOON, KIM, HWA KYU, HAN, JUNG EUN, PARK, SANG HO, HWANG, HYE IN, YOON, SEUNG WOONG
Принадлежит: LOTTE CHEMICAL CORPORATION

The present invention relates to a method for preparing a polyolefin, and to a polyolefin prepared therefrom, wherein the method for preparing a polyolefin comprises the following steps: (a) polymerizing a first olefin-based monomer to prepare a first olefin polymer; and (b) polymerizing the second olefin-based monomer to prepare a second olefin polymer, and mixing the first olefin polymer and the second olefin polymer, wherein the second olefin polymer has a weight average molecular weight, a z-average molecular weight, and a comonomer content higher than the same of the first olefin polymer, and the first olefin polymer and the second olefin polymer are prepared in the presence of a specific catalyst. An object of the present invention is to provide the method for preparing the polyolefin having a high molecular weight content and an excellent comonomer distribution, and having excellent mechanical properties and processability. COPYRIGHT KIPO 2018 (AA) Comparative example 1 (BB) Example ...

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Номер записи: 10
17-11-2022 дата публикации

올레핀 중합용 메탈로센 담지 촉매 조성물 및 이의 제조 방법

Номер: KR20220152724A
Автор: 고영수, 클린턴 마니앙룽, 김욱동, 김세환, 윤여권, 김학준, 양다애, 문서현, 정상철
Принадлежит:

... 본 발명의 제1 양태는 메탈로센 화합물, 알루미늄유기금속 화합물, 보론 화합물, 촉매 담지체 및 폴리에틸렌이민(polyethyleneimine; PEI)을 포함하는 올레핀 중합용 메탈로센 담지 촉매 조성물을 제공한다. 본 발명의 제2 양태는 촉매 담지체에 메탈로센 화합물, 알루미늄유기금속 화합물, 보론 화합물 및 폴리에틸렌이민이 담지된 올레핀 중합용 메탈로센 담지 촉매의 제조 방법을 제공한다. 본 발명의 제3 양태는 촉매 담지체에 메탈로센 화합물, 알루미늄유기금속 화합물, 보론 화합물 및 폴리에틸렌이민이 담지된 올레핀 중합용 메탈로센 담지 촉매를 사용하여, 올레핀을 단일중합 또는 공중합시키는 단계를 포함하는 것이 특징인 폴리올레핀의 제조 방법을 제공한다.

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Номер записи: 11
13-01-2017 дата публикации

CATALYST COMPOSITION FOR POLYMERIZING POLYETHYLENE, AND PREPARATION METHOD OF POLYETHYLENE HAVING DEGREE OF CROSSLINKING ADJUSTED BY USING SAME

Номер: KR101696099B1
Автор: KIM, HWA KYU, PARK, SANG HO, YANG, DA AE, JUNG, JAE HOON, HAN, JUNG EUN, YOON, SEUNG WOONG
Принадлежит: LOTTE CHEMICAL CORPORATION

The present invention relates to a catalyst composition for polymerizing polyethylene, and to a preparation method of polyethylene crosslinked by using the same. A catalyst composition prepared by mixing at least two types of particular metallocene catalyst compounds as main catalysts is used to provide a polyethylene resin having excellent moldability in comparison to crosslinked polyethylene without proceeding a crosslinking reaction through a conventional peroxide initiator or irradiated radiation. Also, the polyethylene resin has improved pressure-resistant characteristics in comparison to metallocene PE-RT. COPYRIGHT KIPO 2017 ...

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Номер записи: 12
05-12-2022 дата публикации

응력 저항성이 향상된 폴리올레핀 조성물

Номер: KR102474477B1
Автор: 양다애, 김성학, 김화규, 윤승웅
Принадлежит: 롯데케미칼 주식회사

... 본 발명은 하기 화학식 1 또는 화학식 2로 표시되는 메탈로센 화합물을 포함하는 1종의 메탈로센 촉매 화합물이 담지된 메탈로센 담지 촉매를 이용하여 제조된 2종의 폴리올레핀을 혼합한 폴리올레핀 조성물에 관한 것으로, 상기 폴리올레핀 조성물은 개선된 내환경 응력 균열성(ESCR)을 나타낸다. [화학식 1] [화학식 2] 위의 화학식 1 및 2에서, M1, M2, X1, X2, n, Ar1, Ar2, Ar3, Ar4, B, L 및 m의 정의는 발명의 상세한 설명에 기재한 것과 동일하고, Ar1-M1-Ar2가 이루는 각 α1 및 Ar3-M2-Ar4가 이루는 각 α2는 각각 100° 내지 135° 내에서 선택된다.

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Номер записи: 13