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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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Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

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Применить Всего найдено 66. Отображено 66.
14-05-2018 дата публикации

METHOD FOR PRODUCING THERMOPLASTIC RESIN

Номер: KR1020180050064A
Принадлежит:

The present invention relates to a method for producing a thermoplastic resin, and to a method for producing a thermoplastic resin composition comprising the thermoplastic resin obtained from the method. More particularly, provided is the method for producing a thermoplastic resin composition, which comprises a step for performing graft-polymerization by adding a styrene-based monomer and an acrylonitrile-based monomer to a rubbery polymer, and when polymerizing the rubbery polymer comprising a conjugated diene monomer, a crosslinking agent, a molecular weight modifier and an emulsifier, the content of the crosslinking agent, the emulsifier and the molecular weight modifier, input time and kinds are controlled to have excellent surface properties, thermal stability and coloring properties while maintaining superior mechanical properties, heat-fusion properties. COPYRIGHT KIPO 2018 ...

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24-08-2017 дата публикации

RUBBER POLYMER AND PREPARATION METHOD THEREFOR, GRAFT COPOLYMER, AND THERMOPLASTIC RESIN COMPOSITION

Номер: WO2017142172A1
Принадлежит:

Disclosed are: a method for preparing a rubber polymer; a rubber polymer; a graft copolymer and a thermoplastic resin composition, comprising the rubber polymer. According to the present disclosure, there is an effect of providing: a rubber polymer having a large-diameter rubber polymer and a small-diameter rubber polymer, which are formed in a desired ratio by controlling the content of the cross-linking agent, the emulsifier and the molecular weight controller, injection time and the type thereof, when a conjugated diene monomer, a cross-linking agent, a molecular weight controller and an emulsifier are polymerized; a graft copolymer having excellent surface gloss and mechanical properties; and a thermoplastic resin composition.

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17-05-2016 дата публикации

METHOD FOR PREPARING ABS GRAFT COPOLYMER

Номер: KR1020160054742A
Принадлежит:

The present disclosure relates to a method for preparing an ABS graft copolymer. The present invention is to provide a method for preparing an ABS graft copolymer and an ABS copolymer obtained through the same. In order to overcome a problem that, when emulsion polymerization is performed by using a radical initiator in the prior art, impregnation of the initiator to monomer in rubber particles is not easily conducted to make 6 to 7% of non-reacting monomer remain, provided are the method for preparing an ABS graft copolymer which includes a step of securing an initial rapid reaction time by using an oil-soluble initiator having a predetermined half-life and a step of heating the initiator to a temperature higher than a initiator decomposition temperature in a later reaction stage (in which a monomer conversion ratio is 80% or more) to perform additional reaction of the residual monomer, thereby achieving 95% or more of a conversion ratio of the monomer within a time that is the same as ...

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23-06-2016 дата публикации

METHOD FOR PREPARING DIENE-BASED RUBBER POLYMER, DIENE-BASED RUBBER POLYMER PREPARED THEREBY, CORE-SHELL STRUCTURED ACRYLONITRILE-BUTADIENE-STYRENE GRAFT COPOLYMER COMPRISING SAME

Номер: WO2016099129A1
Принадлежит:

The present invention relates to a method for preparing a diene-based rubber polymer having a relatively low gel content and a high swelling index while having a high polymerization conversion ratio, to a diene-based rubber polymer prepared thereby, and to a core-shell structured acrylonitrile-butadiene-styrene graft copolymer comprising the diene-based rubber polymer as a core. The method for preparing a diene-based rubber polymer and the core-shell structured acrylonitrile-butadiene-styrene graft copolymer comprising the diene-based rubber polymer prepared by the method can be easily applied in an industry in need thereof, especially, an industry of an impact modifier.

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09-01-2019 дата публикации

그라프트 공중합체의 제조방법 및 그라프트 공중합체

Номер: KR1020190003341A
Принадлежит:

... 본 발명은 실리카 나노 분말, 공액 디엔계 중합체, 방향족 비닐계 단량체 및 비닐 시안계 단량체를 투입하고 중합하는 그라프트 공중합체의 제조방법에 관한 것으로서, 열팽창 계수가 현저하게 낮은 그라프트 공중합체를 제조할 수 있으면서, 제조방법은 단순해질 수 있다.

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10-05-2018 дата публикации

METHOD FOR PRODUCING LARGE-DIAMETER RUBBERY LATEX, ABS-BASED GRAFT COPOLYMER COMPRISING SAME, AND METHOD FOR PRODUCING ABS-BASED INJECTION-MOLDED ARTICLE

Номер: KR1020180047748A
Принадлежит:

The present invention relates to a method for producing large-diameter rubbery latex, a method for producing an acrylonitrile-butadiene-styrene (ABS)-based graft copolymer comprising the same, and a method for producing an ABS-based injection-molded article. More specifically, by adding a polymer acid of unsaturated fatty acid or a metal salt thereof as an emulsifier in the production of the large-diameter rubbery latex, it is possible to improve stability of latex and polymerization reactions. Further, by reducing an amount of gas generated in an injection process at a high temperature, it is also possible to improve surface roughness, gloss, and definition of the ABS-based injection-molded article. COPYRIGHT KIPO 2018 ...

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10-05-2018 дата публикации

METHOD FOR PREPARING DIENE RUBBER LATEX, METHOD FOR PREPARING ABS-BASED GRAFT COPOLYMER COMPRISING SAME, AND METHOD FOR PREPARING ABS-BASED INJECTION MOLDED ARTICLE

Номер: KR1020180048277A
Принадлежит:

The present invention relates to a method for preparing diene rubber latex, a method for preparing ABS-based graft copolymer comprising the same, and a method for manufacturing an ABS-based injection molded article. More specifically, the present invention relates to a method for preparing in-situ bimodal rubber latex in which a small-diameter polymer and a large-diameter polymer are formed in a desired ratio, by controlling the contents, addition time points, and types of the reactants in polymerization of a conjugated diene monomer, a crosslinking agent having a long linear chain terminal, an emulsifier containing a multimer acid of unsaturated fatty acids or a metal salt thereof, and a molecular weight regulator; to a method for preparing an ABS-based graft copolymer comprising the same; and to a method for manufacturing an ABS-based injection molded article. According to the present invention, it is possible to improve polymerization stability and productivity, and by incorporating ...

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08-05-2015 дата публикации

ACRYLONITRILE-BUTADIEN-STYLENE BASED COPOLYMER AND THERMOPLASTIC RESIN INCLUDING SAME

Номер: KR1020150049891A
Принадлежит:

The present invention relates to a manufacturing method of an acrylonitrile-butadien-stylene based graft copolymer, comprising an adding step when a linear fatty alcohol is polymerized and accordingly hardly decreasing other properties of acrylonitrile-butadien-stylene based thermoplastic resin while improving impact strength of the resin, a acrylonitrile-butadien-stylene based graft copolymer manufactured by the method and a thermoplastic resin including the same. The acrylonitrile-butadien-stylene based graft copolymer in the present invention is made by adding fatty alcohol before polymerization reaction is made, thereby permeating the surface of diene-based rubber latex which is rubber seeds and producing grafts having a high rate of monomers on the surface. In addition, the acrylonitrile-butadien-stylene based graft copolymer is allowed to increase reaction speed and to decrease cross reaction or branches, thereby increasing impact strength of the acrylonitrile-butadien-stylene based ...

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18-10-2018 дата публикации

BEDDING DRYING AND STERILIZING APPARATUS

Номер: KR1020180114322A
Автор: SEOK, JAE MIN
Принадлежит:

The present invention relates to a bedding drying and sterilizing apparatus. More particularly, the present invention relates to a bedding drying and sterilizing apparatus using air which enables sterilization, drying, and dust removal of bedding to be performed more easily at home using compressed air and a UV lamp. An air jetting unit (21) having a plurality of air jetting nozzles (211) formed on a surface thereof is bent in a horizontal direction perpendicular to a vertical body (20) and an upper end of the body (20) is fixed to the ceiling of a cabinet (10), and the air jetting unit (21) is configured to include a bedding rest (212) integrally formed to be spaced apart from the air jetting nozzle (211). Thus, bedding or the like can be used more conveniently and hygienically. COPYRIGHT KIPO 2018 ...

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10-01-2017 дата публикации

디엔계 고무 중합체의 제조방법 및 이를 포함하는 아크릴로니트릴-부타디엔-스티렌 그라프트 공중합체

Номер: KR0101695070B1
Принадлежит: 주식회사 엘지화학

... 본 발명은 높은 중합 전환율을 가지면서 상대적으로 겔 함량은 낮고 팽윤지수는 높은 디엔계 고무 중합체의 제조방법, 이로부터 제조된 디엔계 고무 중합체 및 이를 코어로 포함하는 코어-쉘 구조의 아크릴로니트릴-부타디엔-스티렌 그라프트 공중합체에 관한 것이다. 이에 따른 디엔계 고무 중합체의 제조방법 및 이로부터 제조된 디엔계 고무 중합체를 포함하는 코어-쉘 구조의 아크릴로니트릴-부타디엔-스티렌 그라프트 공중합체는 이를 필요로 하는 산업, 특히 충격 보강제 산업에 용이하게 적용할 수 있다.

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08-06-2015 дата публикации

METHOD FOR PRODUCING ABS GRAFT COPOLYMER AND THERMOPLASTIC RESIN COMPOSITION

Номер: KR1020150062629A
Принадлежит:

The present invention relates to a method for producing an ABS graft copolymer and a thermoplastic resin composition. According to the present invention, a heating process is effectively controlled during graft polymerization by separately using a particular polymerization initiator. When a thermoplastic resin composition including the obtained ABS graft copolymer is provided, mechanical properties that are the same as or similar to conventional ones are provided. COPYRIGHT KIPO 2015 (AA) Total conversion rate (%) (BB) Elapsed time (min) (CC) Experimental example 1 (DD) Experimental example 2 (EE) Comparison example 1 (FF) Comparison example 2 (GG) Comparison example 3 ...

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25-07-2016 дата публикации

아크릴로니트릴-부타디엔-스티렌계 공중합체 및 이를 포함하는 열가소성 수지

Номер: KR0101642554B1
Принадлежит: 주식회사 엘지화학

... 본 발명은 아크릴로니트릴-부타디엔-스티렌계 열가소성 수지의 다른 물성을 저하시키지 않으면서 상기 수지의 충격 강도를 향상시킬 수 있는, 선형 지방 알코올을 중합 반응시 첨가하는 단계를 포함하는 아크릴로니트릴-부타디엔-스티렌계 그라프트 공중합체의 제조방법, 이를 통해 제조된 아크릴로니트릴-부타디엔 스티렌계 그라프트 공중합체 및 이를 포함하는 열가소성 수지에 관한 것이다. 이에 따른 아크릴로니트릴-부타디엔-스티렌계 그라프트 공중합체는 중합반응 개시 전에 지방 알코올을 첨가함으로써 고무질 시드인 디엔계 고무 라텍스 표면에 침투하여 상기 표면의 단량체 비율이 높은 그라프트를 생성시킬 수 있으며, 이에 반응 속도를 증가시키고 교차반응이나 분지화를 감소시켜 결과적으로, 상기 공중합체를 포함하는 아크릴로니트릴-부타디엔-스티렌계 열가소성 수지의 충격 강도를 증가시키는 효과가 있다.

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10-05-2018 дата публикации

METHOD FOR PREPARING ABS GRAFT COPOLYMER HAVING ENHANCED IMPACT STRENGTH AND METHOD FOR PREPARING ABS INJECTION-MOLDED PRODUCT COMPRISING SAME

Номер: KR1020180047751A
Принадлежит:

The present invention relates to a method for preparing an ABS graft copolymer having enhanced impact strength, and to an ABS injection-molded product comprising the same. More specifically, the present invention enables optimization of a matrix structure between ABS copolymer particles and a SAN resin and a large-diameter diene-based rubber latex particle structure by means of introducing a polymer acid of unsaturated fatty acid or metal salts of the same as an emulsifier to a large-diameter diene-based rubber latex polymerization step and an ABS graft polymerization step, and thus can provide the ABS copolymer resin having enhanced impact strength. COPYRIGHT KIPO 2018 ...

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29-05-2017 дата публикации

ABS 그라프트 공중합체의 제조방법

Номер: KR0101737183B1
Принадлежит: 주식회사 엘지화학

... 본 기재는 ABS 그라프트 공중합체의 제조방법에 관한 것으로, 본 발명에 따르면 종래 라디칼 개시제를 사용하여 유화중합시 고무입자 내부에 위치한 단량체로 개시제의 침투가 용이하지 않아 결과적으로 6 내지 7% 정도의 미반응 모노머가 잔류하던 발생하던 문제점을 개선하도록, 특정 반감기를 갖는 유용성 라디칼 개시제를 사용하여 초기 신속한 반응속도를 확보하고, 나아가 반응 후반(모노머의 중합전환율80% 이상 지점)에 개시제의 분해 온도보다 높은 온도로 승온시킴으로써 잔류 모노머를 추가 반응시켜 95% 이상의 전환율을 종래와 동등 범위의 반응 시간 내에 달성가능한 ABS 공중합체 제조방법, 및 이로부터 수득된 ABS 공중합체를 제공하는 효과가 있다.

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21-06-2016 дата публикации

METHOD FOR PREPARING ACRYLONITRILE-BUTADIENE-STYRENE GRAFT COPOLYMER AND ACRYLONITRILE-BUTADIENE-STYRENE THERMOPLASTIC RESIN COMPRISING SAME

Номер: KR1020160071250A
Принадлежит:

The present invention relates to a method for preparing acrylonitrile-butadiene-styrene graft copolymer having enhanced impact strength, an acrylonitrile-butadiene-styrene graft copolymer prepared by the method, and an acrylonitrile-butadiene-styrene thermoplastic resin including the acrylonitrile-butadiene-styrene graft copolymer, wherein the method comprising the following steps of: adding an acrylated-based cross-linking agent to prepare diene-based rubber latex (step 1); and pouring, to the diene-based rubber latex, an acrylated-based cross-linking agent, an aromatic vinyl-based compound and a vinyl cyan-based compound and performing graft copolymerization (step 2). COPYRIGHT KIPO 2016 ...

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24-06-2016 дата публикации

METHOD FOR PREPARING DIENE-BASED RUBBER POLYMER AND ACRYLONITRILE-BUTADIENE-STYRENE GRAFT COPOLYMER INCLUDING SAME

Номер: KR1020160073005A
Принадлежит:

The present invention relates to a method for preparing a diene-based rubber polymer having high polymerization transition rate, relatively low gel content, and high swelling index, a diene-based rubber polymer prepared therefrom, and a core-shell structured acrylnitril-butadien-styrene graft copolymer. According to the present invention, the method for preparing diene-based rubber polymer and the core-shell structured acrylnitril-butadien-styrene graft copolymer may be easily applied to the industry requiring thecopolymer, in particular impact modifier industry. COPYRIGHT KIPO 2016 ...

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03-02-2016 дата публикации

Liquid Crystal Display Device and method for manufacturing the same

Номер: KR0101590759B1
Автор: 석재민, 김진환
Принадлежит: 엘지디스플레이 주식회사

... 본 발명은 제1 기판 및 제2 기판; 상기 제1 기판 및 제2 기판 사이에 형성된 액정층; 및 상기 제1 기판 및 제2 기판의 외곽부에 형성된 씨일재를 포함하여 이루어지고, 상기 씨일재의 형성 영역에 대응하는 상기 제1 기판의 소정 영역에는 UV가 투과될 수 있는 적어도 하나의 제1 슬릿을 구비한 금속층이 형성되어 있고, 상기 씨일재의 형성 영역에 대응하는 상기 제2 기판의 소정 영역에는 UV가 투과될 수 있는 적어도 하나의 제2 슬릿을 구비한 차광층이 형성되어 있는 것을 특징으로 하는 액정표시장치, 및 그 제조방법에 관한 것으로서, 본 발명에 따르면, 하부 기판의 게이트 라인 및 데이터 라인과 같은 금속층에 제1 슬릿을 형성하고 상부 기판의 차광층에 제2 슬릿을 형성함으로써, 상기 제1 슬릿과 상기 제2 슬릿을 통해 UV가 씨일재로 전달될 수 있어 상기 씨일재의 미경화문제가 해소될 수 있다.

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19-02-2019 дата публикации

열가소성 수지, 이의 제조방법 및 이를 포함하는 열가소성 수지 조성물

Номер: KR0101949866B1
Принадлежит: 주식회사 엘지화학

... 본 발명은 열가소성 수지, 이의 제조방법 및 이를 포함하는 열가소성 수지 조성물에 관한 것으로, 보다 상세하게는 코어-쉘 구조를 포함하는 열가소성 수지에 있어서, 상기 쉘은 분지 사슬 지방산(branched chain fatty acid), 관능기(functional group)를 포함하는 사슬 지방산 및 이들의 염으로 이루어진 군으로부터 선택된 1종 이상을 포함하여 중합된 것을 특징으로 하는 열가소성 수지, 이의 제조방법 및 이를 포함하는 열가소성 수지 조성물에 관한 것이다. 본 발명에 따르면, 코어-쉘 구조를 포함하는 열가소성 수지의 쉘 중합 시, 유화제로 특정 분지 또는 관능기를 갖는 사슬 지방산 또는 이들의 염을 포함할 경우, 고온의 압출 및 사출 과정에서 발생하는 가스 발생량을 줄여 수지의 표면 광택 및 선명도가 개선되고, 더불어 라텍스 안정성이 우수한 열가소성 수지, 이의 제조방법 및 이를 포함하는 열가소성 수지 조성물을 제공하는 효과가 있다.

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10-05-2018 дата публикации

METHOD FOR PRODUCING ABS-BASED GRAFT COPOLYMER, AND METHOD FOR PRODUCING ABS-BASED INJECTION-MOLDED ARTICLE INCLUDING SAME

Номер: KR1020180047752A
Принадлежит:

The present invention relates to a method for producing an acrylonitrile-butadiene-styrene (ABS)-based graft copolymer, and a method for producing an ABS-based injection-molded article including the same. More specifically, provided are a method for producing an ABS-based graft copolymer, and a method for producing an ABS-based injection-molded article including the same. When copolymerizing a vinyl cyan monomer and an aromatic vinyl monomer on a large-diameter diene-based rubbery latex, an amount of gas produced on a surface of a resin during a high temperature injection process can be reduced through introduction of polymer acid of unsaturated fatty acid or a metal salt thereof as an emulsifier, thereby improving definition and surface gloss of finally injected articles. COPYRIGHT KIPO 2018 ...

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28-03-2019 дата публикации

METHOD FOR PREPARING GRAFT COPOLYMER, GRAFT COPOLYMER, AND THERMOPLASTIC RESIN MOLDED PRODUCT

Номер: WO2019059664A1
Принадлежит:

The present invention relates to a method for preparing a graft copolymer, the method comprising the steps of: 1) introducing a conjugated diene-based monomer, followed by polymerization, to prepare a conjugated diene-based polymer; and 2) introducing the conjugated diene-based polymer, an aromatic vinyl-based monomer, and a vinyl cyanide-based monomer, followed by polymerization, to prepare a graft copolymer, wherein an emulsifier having an APHA color of 50 or less and a critical micelle concentration of 1-50 g/ℓ is introduced, to a graft copolymer, and a thermoplastic resin molded product, and specifically, to a method for preparing a graft copolymer having excellent polymerization stability, color, light resistance, and surface clearness, to a graft copolymer, and to a thermoplastic resin molded product.

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16-12-2016 дата публикации

씨오지 타입 어레이 기판

Номер: KR0101687227B1
Автор: 석재민, 정훈
Принадлежит: 엘지디스플레이 주식회사

... 본 발명은, 다수의 화소영역을 갖는 표시영역과 이의 주변에 게이트 구동 회로부를 갖는 비표시영역이 정의된 기판과; 상기 기판 상의 표시영역에 서로 교차하여 상기 화소영역을 정의하며 형성된 게이트 배선 및 데이터 배선과; 상기 각 화소영역에 상기 게이트 및 데이터 배선과 연결되며 형성된 스위칭 박막트랜지스터와; 상기 게이트 구동 회로부에 상기 스위칭 박막트랜지스터와 동일한 구조를 갖는 다수의 구동 박막트랜지스터와; 상기 각 화소영역에 상기 스위칭 박막트랜지스터의 드레인 전극과 접촉하며 형성된 화소전극과; 상기 화소전극 위로 상기 기판 전면에 형성되며 제 1 두께를 가지며 형성된 제 1 보호층과; 상기 제 1 보호층 위로 상기 표시영역 전면에 상기 각 화소영역에 대응하여 일정간격 이격하는 다수의 바(bar) 형태의 제 1 개구를 갖는 공통전극과; 상기 스위칭 영역에 상기 다수의 구동 박막트랜지스터와 연결되며 형성된 다수의 구동 스토리지 커패시터를 포함하며, 상기 다수의 구동 스토리지 커패시터 각각은 상기 화소전극이 형성된 동일한 층에 동일한 물질로 이루어진 제 1 전극과 상기 제 1 보호층과 상기 공통전극이 형성된 동일한 층에 동일한 물질로 이루어진 제 2 전극으로 구성된 것이 특징인 어레이 기판을 제공한다.

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16-06-2016 дата публикации

METHOD FOR PREPARING LARGE-DIAMETER DIENE-BASED RUBBER LATEX AND ACRYLONITRILE-BUTADIENE-STYRENE GRAFT COPOLYMER INCLUDING LARGE-DIAMETER DIENE-BASED RUBBER LATEX

Номер: WO2016093649A1
Принадлежит:

The present invention relates to: a method for preparing diene-based rubber latex having improved impact strength, gloss, and mobility; the diene-based rubber latex prepared from the method; and an acrylonitrile-butadiene-styrene graft copolymer having, by including the diene-based rubber latex, a reduced rubbery solid content ratio but also having improved impact strength and production yield.

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17-01-2017 дата публикации

대구경의 디엔계 고무 라텍스 제조 방법 및 이를 포함하는 아크릴로니트릴-부타디엔-스티렌 그라프트 공중합체

Номер: KR0101692117B1
Принадлежит: 주식회사 엘지화학

... 본 발명은 충격강도, 광택도 및 유동성이 향상된 디엔계 고무 라텍스의 제조 방법과 이로부터 제조된 디엔계 고무 라텍스 및 이를 포함함으로써 고무질 고형분 함량 비율은 감소된 반면에, 충격 강도 및 생산 수율이 향상된 아크릴로니트릴-부타디엔-스티렌 그라프트 공중합체에 관한 것이다.

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22-03-2017 дата публикации

SEED POLYMER, THERMOPLASTIC RESIN INCLUDING SAME, AND METHOD FOR PRODUCING SAME

Номер: KR1020170031937A
Принадлежит:

The present invention relates to a thermoplastic resin and a thermoplastic resin composition including the same. More specifically, the present invention relates to a seed polymer including a conjugated diene-based compound and an aliphatic emulsifier having an average chain carbon number of 16.8 or higher which are emulsified and polymerized; a thermoplastic resin including the same; a thermoplastic resin composition; and a method for producing the same. According to the present invention, if an aliphatic emulsifier having a predetermined or higher carbon number is included when a seed of a thermoplastic resin including a seed-shell structure is polymerized, a generation amount of gas generated in a high temperature extruding and injecting step is reduced, so the surface gloss and definition of the resin composition are improved. Moreover, the seed polymer can have excellent latex stability and sample color. COPYRIGHT KIPO 2017 ...

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11-05-2018 дата публикации

METHOD FOR PREPARING ABS GRAFT COPOLYMER HAVING ENHANCED IMPACT STRENGTH AND METHOD FOR PREPARING ABS INJECTION-MOLDED PRODUCT COMPRISING SAME

Номер: WO2018084436A1
Принадлежит:

The present invention relates to a method for preparing an ABS graft copolymer having enhanced impact strength, and an ABS injection-molded product comprising same. More specifically, the present invention enables optimization of a matrix structure between ABS copolymer particles and a SAN resin and a large-diameter diene-based rubber latex particle structure by means of introducing a polymer acid of unsaturated fatty acid or metal salts of same as an emulsifier to a large-diameter diene-based rubber latex polymerization step and an ABS graft polymerization step, and thus can provide an ABS copolymer resin having enhanced impact strength.

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22-03-2017 дата публикации

THERMOPLASTIC RESIN, METHOD FOR PRODUCING SAME, AND THERMOPLASTIC RESIN COMPOSITION INCLUDING SAME

Номер: KR1020170031936A
Принадлежит:

The present invention relates to a thermoplastic resin. More specifically, the present invention relates to a seed-shell structure thermoplastic resin, a method for producing the same, and a thermoplastic resin composition including the same, wherein the seed-shell structure thermoplastic resin comprises a shell emulsified and polymerized by including a fatty acid-based emulsifier in which an average carbon number of a chain is 16.8 or higher. According to the present invention, if a fatty acid-based emulsifier having a predetermined or higher carbon number is included in an emulsifier when the shell of the thermoplastic resin including a seed-shell structure is polymerized, the quantity of gas generated in a high temperature extruding and ejecting step is reduced, and the surface gloss and definition of a resin composition are improved. Also, the thermoplastic resin has excellent latex stability and excellent specimen colors. COPYRIGHT KIPO 2017 ...

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20-04-2017 дата публикации

IN SITU TRI-MODAL RUBBER LATEX AND METHOD FOR PREPARING SAME

Номер: KR1020170042941A
Принадлежит:

The present invention relates to an in-situ tri-modal rubber latex and a method for preparing the same. More particularly, the in-situ tri-modal rubber latex comprises: 5-25 wt% of rubber having an average particle diameter of 800-1500Å; 60-89 wt% of rubber having an average particle diameter of 2500-3500Å; 5-30 wt% of rubber having an average particle diameter of 3500-6000Å; and 0.05-3 wt% of a polymer coagulant having an average particle diameter of 800-3000Å. According to the present invention, the tri-modal latex is produced in-situ and thus is cost-efficient. In addition, the in-situ tri-modal rubber latex shows excellent mechanical properties and surface properties when applied to a thermoplastic copolymer resin. The present invention also relates to a method for preparing the in-situ tri-modal rubber latex and a thermoplastic copolymer resin comprising the same. COPYRIGHT KIPO 2017 ...

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25-04-2017 дата публикации

IN SITU TRIMODAL ABS- BASED GRAFT RESIN AND METHOD FOR PREPARING SAME

Номер: KR1020170044484A
Принадлежит:

The present invention relates to an in situ trimodal ABS-based graft resin composition and a method for preparing the same. More particularly, the in situ trimodal ABS-based graft resin composition according to the present invention is obtained by polymerization of: (a) 100 parts by weight of an aromatic vinyl compound-conjugated diene based rubber-vinyl cyanide compound graft resin; and (b) 2.5-4.5 parts by weight of a polymer coagulant having an average particle diameter of 800-3000Å, wherein the graft resin comprises 40-70 parts by weight of the conjugated diene based rubber, 20-40 parts by weight of the aromatic vinyl compound and 1-20 parts by weight of the vinyl cyanide compound, and the conjugated diene based rubber comprises 30-45 wt% of conjugated diene based rubber having an average particle diameter of 500-2000Å, 45-55 wt% of conjugated diene based rubber having an average particle diameter of 2500-4500Åand 5-15 wt% of conjugated diene based rubber having an average particle ...

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18-03-2025 дата публикации

- - A METHODS FOR PREPARING VINYLCYAN COMPOUND-CONJUGATED DIENE RUBBER-AROMATIC VINYL COMPOUND GRAFT COPOLYMER METHODS FOR THERMOPLASTIC RESIN COMPOSITIN COMPRISING THE SAME AND THERMOPLASTIC RESIN COMPOSITION

Номер: KR102781981B1
Автор: 정영환, 석재민, 김영민
Принадлежит: 주식회사 엘지화학

The present invention relates to a preparation method of a vinyl cyan compound-conjugated diene rubber-aromatic vinyl compound graft copolymer, a preparation method of a thermoplastic resin composition comprising the same, and a thermoplastic resin composition. More specifically, during the polymerization of a conjugated diene rubber, a conjugated diene compound and a molecular weight regulator are added in portions and the content of an emulsifier is reduced to lower the content of gel, and the enlarged conjugated diene-based rubber latex, which is enlarged with an organic acid thickening agent has the effect of improving gloss, reflection haze, induction and impact resistance and reducing residues during injection molding as the full width at half maximum of particle diameter is widened.

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16-06-2016 дата публикации

METHOD FOR PREPARING ACRYLONITRILE-BUTADIENE-STYRENE GRAFT COPOLYMER, AND ACRYLONITRILE-BUTADIENE-STYRENE THERMOPLASTIC RESIN CONTAINING SAME

Номер: WO2016093616A1
Принадлежит:

The present invention relates to a method for preparing an acrylonitrile-butadiene-styrene graft copolymer with improved impact strength, an acrylonitrile-butadiene-styrene graft copolymer prepared by the method, and an acrylonitrile-butadiene-styrene thermoplastic resin containing the same, the method comprising the steps of: (step 1) preparing a diene-based rubber latex by adding an acrylate-based cross-linking agent; and (step 2) carrying out graft copolymerization by injecting a cross-linking agent, which is identical with the acrylate-based cross-linking agent, an aromatic vinyl-based compound and a cyanovinyl-based compound into the diene-based rubber latex.

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18-07-2016 дата публикации

대구경 고무강화 열가소성 수지의 제조방법 및 열가소성 수지 조성물

Номер: KR0101640678B1
Принадлежит: 주식회사 엘지화학

... 본 발명은 대구경 고무강화 열가소성 수지의 제조방법 및 대구경 고무강화 열가소성 수지를 포함하는 열가소성 수지 조성물에 관한 것으로, 본 발명에 따르면 대구경 고무강화 열가소성 수지 제조시 대구경 고무 라텍스만을 사용하고 나아가 유화제를 특정함으로써 대구경 고무강화 열가소성 수지 중합시 라텍스 안정성이 탁월하고 상기 대구경 고무강화 열가소성 수지를 포함하는 열가소성 수지 조성물의 표면특성과 열 안정성이 우수하고, 금형 침전 또한 저감된 열가소성 수지 조성물을 제공하는 효과가 있다.

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21-06-2017 дата публикации

디엔계 고무 라텍스의 제조방법 및 이를 포함하는 아크릴로니트릴-부타디엔-스티렌 그라프트 공중합체

Номер: KR0101749431B1
Принадлежит: 주식회사 엘지화학

... 본 발명은 본 발명은 대구경의 디엔계 고무 라텍스 제조 방법과 이를 포함하는 아크릴로니트릴-부타디엔-스티렌 그라프트 공중합체에 관한 것으로, 대구경 고무 라텍스 제조 시에 가교제와 임계미셀농도(critical micelle concentration, CMC)가 150 mg/L 이하인 유화제의 함량 및 투입 시점을 조절함으로써 충격 강도가 향상된 대구경의 디엔계 고무 라텍스를 제조하는 방법과, 이로부터 제조된 대구경의 디엔계 고무 라텍스 및 이를 포함하는 아크릴로니트릴-부타디엔-스티렌 그라프트 공중합체와 이를 포함하는 열가소성 수지에 관한 것이다.

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29-09-2016 дата публикации

디엔계 고무질 중합체 및 제조방법, 이를 포함하는 열가소성 수지 조성물

Номер: KR0101661399B1
Принадлежит: 주식회사 엘지화학

... 본 발명은 디엔계 고무질 중합체 및 제조방법, 이를 포함하는 열가소성 수지에 관한 것으로서, 본 발명에 따르면 아크릴로니트릴-부타디엔-스티렌계 수지에 포함되는 고무질 중합체로서, 알코올 개질된 디엔계 고무질 중합체를 제공함으로써 종래 내충격성을 부여하기 위한 고무 라텍스의 대구경화 혹은 겔 함량 저감과 무관하게 내충격성을 부여한 열가소성 수지를 제공할 수 있다.

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02-04-2015 дата публикации

METHOD FOR PREPARING ABS GRAFT COPOLYMER

Номер: WO2015047038A1
Принадлежит:

The present invention relates to a method for preparing an ABS graft copolymer. According to the present invention, provided is a method for preparing an ABS graft copolymer capable of improving surface gloss by inducing the formation of bimodal particles through the formation of existing ABS resin particles and ABS resin particles having a relatively small diameter.

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14-12-2017 дата публикации

METHOD FOR MANUFACTURING FOAMED POLYSTYRENE FOAM

Номер: KR101808736B1
Автор: SEOK JAE MIN
Принадлежит: SUNPOLY FOAM

The present invention relates to a method for manufacturing a foamed polystyrene foam, which comprises the following steps: adding 85 to 105 wt% of a polystyrene powder, 3 to 7 wt% of a flame retardant, 1 to 5 wt% of an expanded graphite powder or a loess powder, and 0.5 to 2 wt% of a nucleating agent to an extruder and melting the mixture to manufacture a molten material; and adding a foaming agent to the molten material and extruding the mixture, wherein the foaming agent is a mixed foaming agent in which a liquid foaming agent and a gas foaming agent are mixed. It is an object of the present invention to provide the method for manufacturing a foamed polystyrene foam having uniform size and shape by foaming to improve a heat insulating property and the strain rate by applying the mixed foaming agent to the foaming process. COPYRIGHT KIPO 2018 (AA) Insertion of a raw ingredient (BB) Mix · melting (CC) Foam (DD) Forming (EE) Cooling (FF) Cutting (GG) Packing · release (HH) Gas foaming agent ...

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17-03-2023 дата публикации

비닐시안 화합물-공액디엔 화합물-방향족 비닐 화합물 그라프트 공중합체의 제조방법

Номер: KR102511537B1
Принадлежит: 주식회사 엘지화학

... 본 발명은 비닐시안 화합물-공액디엔 화합물-방향족 비닐 화합물 그라프트 공중합체의 제조방법에 관한 것으로, 보다 상세하게는 a) 공액 디엔 단량체 100 중량부, 유화제로 불포화 지방산의 다량체(multimer acid) 또는 이의 금속염 0.1 내지 1.4 중량부 및 수용성 중합개시제 0.02 내지 6 중량부를 포함하여 중합 반응시켜 공액디엔 고무 라텍스를 제조하는 단계, b) 제조된 공액디엔 고무 라텍스 50 내지 70 중량%(고형분 기준)에, 방향족 비닐 화합물 20 내지 40 중량% 및 비닐시안 화합물 1 내지 20 중량%를 그라프트 중합시켜 그라프트 공중합체 라텍스를 제조하는 단계, 및 c) 제조된 그라프트 공중합체 라텍스 100 중량부(고형분 기준)에, 고분자 응집제 0.1 내지 1.0 중량부와 산 응집제 0.5 내지 1.6 중량부를 투입하여 응집시키는 단계를 포함하는 비닐시안 화합물-공액디엔 화합물-방향족 비닐 화합물 그라프트 공중합체의 제조방법에 관한 것이다. 본 발명에 따르면, 사출성형 시 가스 발생량이 적어 작업이 쉽고 사출물의 외관 품질이 우수하며, 열 안정성 및 표면 선명성이 뛰어난 비닐시안 화합물-공액디엔 화합물-방향족 비닐 화합물 그라프트 공중합체의 제조방법을 제공하는 효과가 있다.

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21-06-2016 дата публикации

PREPARATION METHOD OF DIENE-BASED RUBBER LATEX HAVING LARGE DIAMETER AND ACRYLONITRILE-BUTADIENE-STYRENE GRAFT COPOLYMER COMPRISING SAME

Номер: KR1020160071249A
Принадлежит:

The present invention relates to a preparation method of a diene-based rubber latex having enhanced impact strength, glossiness, and flowability; a diene-based rubber latex manufactured therefrom; and an acrylonitrile-butadiene-styrene grafted copolymer having enhanced impact strength and production yield while having reduced percentage of rubbery solid contents. COPYRIGHT KIPO 2016 ...

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04-07-2016 дата публикации

METHOD OF PRODUCING DIENE-BASED RUBBER LATEX AND ACRYLONITRILE-BUTADIENE-STYRENE GRAFT COPOLYMER COMPRISING SAME

Номер: KR1020160078288A
Принадлежит:

The present invention relates to a method for producing diene-based rubber latex having the large caliber. The present invention further relates to an acrylonitrile-butadiene-styrene graft copolymer comprising the same. More specifically, the present invention relates to a method for producing diene-based rubber latex having the large caliber, diene-based rubber latex having the large caliber produced therefrom, an acrylonitrile-butadiene-styrene graft copolymer comprising the same, and a thermoplastic resin comprising the same. According to the present invention, the diene-based rubber latex shows improved impact strength by regulating the content and the insertion timing of a crosslinking agent and an emulsifying agent of which the critical micelle concentration (CMC) is less than or equal to 150 mg/L in the production of rubber latex having the large caliber. COPYRIGHT KIPO 2016 ...

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10-05-2018 дата публикации

STYRENE BASED RESIN WITH IMPROVED SURFACE PROPERTIES, METHOD FOR PREPARING SAME, AND STYRENE BASED RESIN COMPOSITION COMPRISING SAME

Номер: KR1020180047754A
Принадлежит:

The present invention relates to a styrene based resin with improved surface properties, a method for preparing the same, and a styrene based resin composition comprising the same. More particularly, the present invention relates to a styrene based resin which includes conjugated diene rubber, and multimer acid of unsaturated fatty acid or metal salt thereof to reduce the amount of gas generated during high temperature extrusion and injection processes, thereby improving the surface gloss and sharpness of the resin, and the stability of the resin. COPYRIGHT KIPO 2018 ...

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29-07-2016 дата публикации

액정 표시장치의 구동장치

Номер: KR0101641366B1
Автор: 석재민, 정 훈
Принадлежит: 엘지디스플레이 주식회사

... 본 발명은 스플릿 인버젼 방식을 적용하여 소비 전력 감소 및 화질 향상을 위한 액정 표시장치의 구동장치에 관한 것으로, 홀수번째 라인들의 화소들이 공통 접속된 1 공통전압 라인과, 짝수번째 라인들의 화소들이 공통 접속된 제 2 공통전압 라인을 포함하는 액정패널; 액정패널의 홀수번째 게이트 라인들과 짝수번째 게이트 라인들을 각각 구동하는 제 1 및 제 2 게이트 드라이버; 제 1 및 제2 공통전압 라인으로 서로 다른 레벨의 제 1 및 제2 공통전압을 각각 공급하고, 매 프레임 단위로 제 1 및 제 2 공통 전압의 레벨을 서로 반전시키는 공통전압 공급부; 및 매 프레임 기간을 제 1 및 제 2 기간으로 시분할하여, 제 1 기간동안 제 1 및 제 2 게이트 드라이버 중 어느 하나의 게이트 드라이버를 구동하고, 제 2 기간동안 나머지 하나의 게이트 드라이버를 구동하며, 제 1 및 제 2 게이트 드라이버의 구동 순서에 따라 외부로부터 입력된 영상 데이터를 정렬하여 데이터 드라이버에 공급하는 타이밍 컨트롤러를 구비하고, 데이터 드라이버는 제 1 기간동안 데이터 라인들에 제1 극성의 영상신호들을 공급하고, 제 2 기간동안 데이터 라인들에 제1 극성과 다른 제2 극성의 영상신호들을 공급한다.

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21-06-2016 дата публикации

METHOD FOR PRODUCING ACRYLONITRILE-BUTADIENE-STYRENE GRAFT COPOLYMER

Номер: KR1020160071247A
Принадлежит:

The present invention relates to a method for producing an acrylonitrile-butadiene-styrene graft copolymer with improved material properties such as impact strength. The present invention further relates to an acrylonitrile-butadiene-styrene graft copolymer produced thereby. COPYRIGHT KIPO 2016 ...

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26-03-2020 дата публикации

METHOD OF PREPARING CONJUGATED DIENE-BASED POLYMER AND METHOD OF PREPARING GRAFT COPOLYMER COMPRISING SAME

Номер: WO2020060147A1
Принадлежит:

The present invention relates to a method of preparing a conjugated diene-based polymer, the method comprising the step of initiating and conducting polymerization while continuously introducing conjugated diene-based monomers into a reactor, thereby producing a conjugated diene-based polymer, wherein an emulsifier is added before the initiation of polymerization, and also at a time when the degree of polymerization conversion is 31% to 80%. More specifically, the present invention relates to a method of preparing a conjugated diene-based polymer, capable of reducing the total amount of an emulsifier, and to a method of preparing a graft copolymer comprising same.

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18-06-2020 дата публикации

METHOD FOR PREPARING VINYL CYAN COMPOUND-CONJUGATED DIENE COMPOUND-AROMATIC VINYL COMPOUND GRAFT COPOLYMER AND THERMOPLASTIC RESIN COMPOSITION COMPRISING GRAFT COPOLYMER

Номер: WO2020122407A1
Принадлежит:

The present description relates to a method for preparing a graft copolymer and a thermoplastic resin composition comprising the graft copolymer and, more specifically, to a method for preparing a graft copolymer, comprising the step of adding an acid coagulant with respect to 100 parts by weight (based on the solid content) of a graft copolymer latex in which an aromatic vinyl compound and a vinyl cyan compound are graft polymerized with a conjugated diene rubber latex to cause coagulation, and then adding again a salt coagulant thereto to cause coagulation. According to the present description, when preparation is performed according to the above-described method, there are effects of excellent coagulation efficiency, a high degree of gloss, excellent color due to a low b value measured using a HunterLab colorimeter and a low b value measured after a retention time of 15 minutes at 250 °C, and excellent processing properties due to low heating loss and a long scorch time.

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14-04-2022 дата публикации

METHOD FOR PREPARING VINYL CYANIDE COMPOUND-CONJUGATED DIENE RUBBER-AROMATIC VINYL COMPOUND GRAFT COPOLYMER, METHOD FOR PREPARING THERMOPLASTIC RESIN COMPOSITION COMPRISING SAME, AND THERMOPLASTIC RESIN COMPOSITION

Номер: WO2022075578A1
Принадлежит:

The present invention relates to a method for preparing a vinyl cyanide compound-conjugated diene rubber-aromatic vinyl compound graft copolymer, a method for preparing a thermoplastic resin composition comprising same, and a thermoplastic resin composition, and, more specifically, an enlarged conjugated diene-based rubber latex, which has a gel content lowered through the injection of a conjugated diene compound and a molecular weight modifier in divided amounts during polymerization of a conjugated diene rubber and through the reduction in the amount of an emulsifier and which is enlarged using an acid agglomerating agent, has a larger full width at half maximum to improve gloss, reflection haze, flowability and impact resistance and reduce residues during injection molding.

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27-12-2016 дата публикации

아크릴로니트릴-부타디엔-스티렌 그라프트 공중합체 제조 방법 및 이를 포함하는 아크릴로니트릴-부타디엔-스티렌 열가소성 수지

Номер: KR0101690381B1
Принадлежит: 주식회사 엘지화학

... 본 발명은 아크릴레이트계 가교제를 첨가하여 디엔계 고무 라텍스를 제조하는 단계 (단계 1); 및 상기 디엔계 고무 라텍스에 아크릴레이트계 가교제와 방향족 비닐계 화합물 및 비닐시안계 화합물 투입하여 그라프트 공중합하는 단계 (단계 2);를 포함함으로써, 충격 강도가 향상된 아크릴로니트릴-부타디엔-스티렌 그라프트 공중합체 제조 방법과 상기 방법에 의해 제조된 아크릴로니트릴-부타디엔-스티렌 그라프트 공중합체 및 이를 포함하는 아크릴로니트릴-부타디엔-스티렌 열가소성 수지에 관한 것이다.

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10-05-2018 дата публикации

METHOD FOR PRODUCING SMALL-DIAMETER RUBBERY POLYMER LATEX, METHOD FOR PRODUCING ABS-BASED GRAFT COPOLYMER COMPRISING SAME, AND METHOD FOR PRODUCING ABS-BASED INJECTION-MOLDED ARTICLE

Номер: KR1020180047747A
Принадлежит:

The present invention relates to a method for producing small-diameter rubbery polymer latex, a method for producing an acrylonitrile-butadiene-styrene (ABS)-based graft copolymer comprising the same, and a method for producing an ABS-based injection-molded article. More specifically, by adding an emulsifier containing a polymer acid of unsaturated fatty acid or a metal salt thereof in the production of the small-diameter rubbery polymer latex, it is possible to secure stability of latex. Further, by reducing an amount of gas generated in an injection process at a high temperature, it is also possible to improve gloss and definition of the ABS-based injection-molded article. COPYRIGHT KIPO 2018 ...

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18-10-2018 дата публикации

METHOD OF FILLING COTTON INTO BEDDING

Номер: KR1020180114323A
Автор: SEOK, JAE MIN
Принадлежит:

The present invention relates to a method of filling cotton into bedding without a sewing line to prevent allergens, and the bedding having the cotton filled thereinto by the same. More specifically, the present invention relates to the method of filling cotton into bedding without a sewing line to prevent allergens and the bedding having the cotton filled thereinto by the same, which prevents harmful insects such as house dust mites from entering the bedding while preventing movement of the cotton by filling the cotton in spaces between cell units that are divided without the sewing line, and then closing holes of the cell units. The method of the present invention comprises: forming an adhesive layer which is formed in a band shape at both sides of the inner surface of a bedding consisting of two layers; installing a horizontal division member and a vertical division member in the adhesive layer so that the horizontal division member and the vertical division member intersect wherein ...

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18-10-2018 дата публикации

FUNCTIONAL PILLOW

Номер: KR1020180114333A
Автор: SEOK, JAE MIN
Принадлежит:

The present invention relates to a pillow to rest a head on to sleep or to rest. In particular, the present invention relates to a functional pillow configured to emit magnetic waves and far-infrared rays to the outside, thereby alleviating fatigue in the head of a sleeping user and rendering the pillow easy to use hygienically. A pillow body (10) having a predetermined volume, made of a cushion material made of bio ceramics and urethane resin, is provided; a plurality of ball insertion holes (12) are formed on the pillow body (10) to be perpendicular to a length direction thereof; bio ceramic balls (20) emitting far-infrared rays, made of a spherical bio ceramic material having multiple air passage holes (22), are press-fitted in each of the ball insertion holes (12); and a magnet (30) having an hollow air hole (31) is affixed to an upper entrance portion of each of the ball insertion holes (12) by a fixing means; and a water vein-blocking plate (100) made of a copper plate for blocking ...

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31-05-2017 дата публикации

아크릴로니트릴-부타디엔-스티렌 그라프트 공중합체의 제조 방법

Номер: KR0101742361B1
Принадлежит: 주식회사 엘지화학

... 본 발명은 충격강도 등의 물성이 향상된 아크릴로니트릴-부타디엔-스티렌 그라프트 공중합체의 제조 방법과, 이러한 방법에 의해 제조된 아크릴로니트릴-부타디엔-스티렌 그라프트 공중합체에 관한 것이다.

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05-01-2016 дата публикации

MANUFACTURING METHOD OF ABS GRAFT COPOLYMER

Номер: KR0101582422B1
Принадлежит: 주식회사 엘지화학

... 본 발명은 고무 라텍스에 비닐방향족 단량체와 비닐시안 단량체를 그라프트 공중합시켜 ABS 그라프트 공중합체를 제조함에 있어서, 상기 고무 라텍스, 상기 비닐방향족 단량체 및 상기 비닐시안 단량체의 총 중량을 100중량부로 기준하여 (1) 상기 고무 라텍스 50 내지 80중량%(고형분 기준)에 수성 중합개시제 0.0001 내지 0.1중량부를 투입하고, 혼합하여 제1 혼합물을 수득하는 혼합단계; (2) 상기 제1 혼합물에 상기 비닐방향족 단량체와 비닐시안 단량체의 제 2 혼합물 20 내지 50중량%를 유화제 0.01 내지 10중량부로 유화시킨 단량체 유화혼합물 중 5 내지 10중량%를 투입하여 중합을 개시한 후에, 잔여 단량체 유화혼합물을 투입하여 중합시키는 1차 중합단계; 및 (3) 상기 중합단계의 진행 중에, 중합전환율 80 내지 90%에서 보조 중합개시제 0.0001 내지 0.5중량부를 투입하고 중합시키는 2차 중합단계;를 포함하여 중합개시제의 구분 사용하는 것과 고무 라텍스에 그라프트 중합되는 단량체 유화혼합물 중 일부는 일괄투입하고 그 나머지는 연속투입에 의하여 작은 입경의 그라프트 공중합체를 다량 형성시켜 표면광택도가 향상된 ABS 그라프트 공중합체를 제공하는 효과가 있다.

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22-03-2017 дата публикации

THERMOPLASTIC RESIN, METHOD FOR PRODUCING SAME, AND THERMOPLASTIC RESIN COMPOSITION INCLUDING SAME

Номер: KR1020170031938A
Принадлежит:

The present invention relates to a thermoplastic resin, a method for producing the same, and a thermoplastic resin composition including the same. More specifically, the thermoplastic resin includes a seed-shell structure, and a seed and a shell of the seed-shell structure separately include aliphatic emulsifiers having average chain carbon numbers of 16.8 or higher, and are emulsified and polymerized. According to the present invention, if an aliphatic emulsifier having a predetermined or higher carbon number is included when the seed and the shell of the thermoplastic resin including the seed-shell structure are polymerized, a generation amount of gas from in a high temperature extruding and injecting step is reduced, so the surface gloss and definition of the resin composition are improved. Moreover, the thermoplastic resin can have excellent latex stability and sample color. COPYRIGHT KIPO 2017 ...

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10-05-2018 дата публикации

METHOD FOR PRODUCING ABS-BASED GRAFT COPOLYMER, AND METHOD FOR PRODUCING ABS-BASED INJECTION-MOLDED ARTICLE CONTAINING SAME

Номер: KR1020180047753A
Принадлежит:

The present invention relates to a method for producing an acrylonitrile-butadien-styrene (ABS)-based graft copolymer, and a method for producing an ABS-based injection-molded article containing the same. More specifically, the present invention relates to a method for producing an ABS-based graft copolymer, and a method for producing an ABS-based injection-molded article containing the same. By introducing, as an emulsifier, polymeric acid of unsaturated fatty acid or a metal salt thereof during a small-diameter diene-based rubber latex polymerization step, an ABS graft polymerization step, or both, it is possible to improve stability of latex as well as surface properties such as surface roughness, gloss, and sharpness in final molded products by reducing an amount of volatile organic compounds during a high-temperature thermoforming process. COPYRIGHT KIPO 2018 ...

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04-07-2016 дата публикации

METHOD OF PRODUCING DIENE-BASED RUBBER LATEX AND ACRYLONITRILE-BUTADIENE-STYRENE GRAFT COPOLYMER COMPRISING SAME

Номер: KR1020160077627A
Принадлежит:

The present invention relates to a method for producing diene-based rubber latex. The present invention further relates to an acrylonitrile-butadiene-styrene graft copolymer comprising the same. More specifically, the present invention relates to a method for producing diene-based rubber latex, an acrylonitrile-butadiene-styrene graft copolymer comprising the diene-based rubber latex produced therefrom and having improved low-temperature impact strength, and a thermoplastic resin comprising the same. According to the present invention, by regulating the content and the insertion timing of an emulsifying agent having the low critical micelle concentration (CMC) in the production of rubber latex, the ratio of the large caliber rubber latex and small caliber rubber latex is controlled. COPYRIGHT KIPO 2016 ...

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11-05-2018 дата публикации

METHOD FOR PREPARING ABS RESIN COMPOSITION AND METHOD FOR PREPARING ABS INJECTION-MOLDED PRODUCT COMPRISING SAME

Номер: WO2018084408A1
Принадлежит:

The present invention relates to a method for preparing an ABS resin composition and a method for preparing an ABS injection-molded product comprising same and, more specifically, to a method for preparing an ABS resin composition by using a polymer acid of an unsaturated fatty acid or metal salts of same as an emulsifier in a diene-based rubber latex polymerization and ABS graft polymerization step. According to the present invention, an ABS resin composition is prepared by means of introducing a polymer acid of an unsaturated fatty acid or metal salts of same as an emulsifier, and thus polymerization stability is obtained and surface properties of an ABS injected product such as surface glossiness or distinctness are enhanced.

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10-05-2018 дата публикации

LIQUID CRYSTAL DISPLAY PANEL

Номер: KR1020180047375A
Автор: SEOK, JAE MIN, JEOUNG, HUN
Принадлежит:

An embodiment of the present invention relates to a liquid crystal display panel which includes a sealant disposed between first and second substrates facing each other and corresponding to the outline of a display region, a first protective film disposed on the first substrate, a second protective film disposed on the first protective film, and an adhesive groove part composed of a first contact groove which overlaps the sealant and passes through the first and second protective films and a second contact groove which is adjacent to the first contact groove and passes through the second protective film. The sealant is bonded to each of the first and second protective films by the adhesive groove part, thereby improving the adhesion of the liquid crystal display panel. COPYRIGHT KIPO 2018 ...

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10-05-2018 дата публикации

METHOD FOR PREPARING ABS RESIN COMPOSITION AND METHOD FOR PREPARING ABS INJECTION-MOLDED PRODUCT COMPRISING SAME

Номер: KR1020180047750A
Принадлежит:

The present invention relates to a method for preparing an ABS resin composition and a method for preparing an ABS injection-molded product comprising the same and, more specifically, provides a technique related to a method for preparing an ABS resin composition by using a polymer acid of an unsaturated fatty acid or metal salts thereof as an emulsifier in a diene-based rubber latex polymerization and ABS graft polymerization step. According to the present invention, the ABS resin composition is prepared by means of introducing a polymer acid of an unsaturated fatty acid or metal salts thereof as the emulsifier, and thus the polymerization stability is obtained and surface properties of the ABS injection-molded product such as surface glossiness or distinctness and the like are enhanced. COPYRIGHT KIPO 2018 ...

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10-05-2018 дата публикации

ABS-BASED GRAFT RESIN AND PRODUCTION METHOD THEREOF

Номер: KR1020180047749A
Принадлежит:

The present invention relates to an ABS-based graft resin and a production method thereof. More specifically, the present invention relates to an ABS-based graft resin and a production method thereof, wherein the ABS-based graft resin comprises a resin obtained by graft polymerizing an aromatic vinyl monomer and a vinyl cyanide monomer in a conjugated diene rubber, a polymer aggregate, and (c) a multimer acid of an unsaturated fatty acid or a metal salt of the multimer acid. The conjugated diene rubber includes 30 to 45 wt% of a conjugated diene rubber with an average particle diameter of 500 to 2,000 Å, 45 to 55 wt% of a conjugated diene rubber with an average particle diameter of 2,500 to 4,500 Å, and 5 to 15 wt% of a conjugated diene rubber with an average particle diameter of more than 4,500 Å to not more than 6,000 Å. The present invention has an effect of providing an ABS-based resin which has greatly improved impact strength, flowability and surface properties by improving polymerization ...

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18-10-2018 дата публикации

ELECTROTHERMAL BEDDING CONTROL DEVICE

Номер: KR1020180114326A
Автор: SEOK, JAE MIN
Принадлежит:

The present invention relates to an electrothermal bedding control device which has a safety device for blocking a magnetic field and an electric field generated in electrothermal bedding, and for preventing local overheating and overcurrent supply. The present invention comprises: a commercial power supply unit having a fuse to supply commercial power; a DC power supply unit rectifying and smoothing the commercial power to supply DC power to each unit; an AC synchronization signal generating unit half-wave rectifying the commercial power to output an AC power synchronization signal; a non-inductive heater generating heat by receiving the commercial power; a heater driving unit driving the heater by switching the commercial power supplied to the non-inductive heater; a rated current detecting unit detecting a current supplied to the non-inductive heater; a temperature detecting and regulating unit detecting the temperature and an internal temperature of the non-inductive heater and allowing ...

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20-03-2023 дата публикации

디엔계 고무질 중합체의 제조방법 및 이를 포함하는 그라프트 중합체의 제조방법

Номер: KR102511428B1
Принадлежит: 주식회사 엘지화학

... 본 발명은 반응기에 디엔계 단량체, 분자량 조절제, 개시제 및 유화제를 각각 1차 투입하고 중합하는 단계; 중합전환율이 48 내지 72 %인 시점에 도달했을 때 상기 반응기에 분자량 조절제를 2차 투입하고 중합하는 단계; 중합전환율이 63 내지 77 %인 시점에 도달했을 때 상기 반응기에 디엔계 단량체를 2차 투입하고 중합하는 단계; 중합전환율이 68 내지 81 %인 시점에 도달했을 때 상기 반응기에 개시제 및 유화제를 각각 2차 투입하고 중합하는 단계; 및 중합전환율이 85 내지 91 %인 시점에 도달했을 때 상기 반응기에 개시제 및 유화제를 각각 3차 투입하고 중합하는 단계를 포함하는 디엔계 고무질 중합체의 제조방법에 관한 것이다.

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26-01-2017 дата публикации

ABS 그라프트 공중합체의 제조방법 및 열가소성 수지 조성물

Номер: KR0101700475B1
Принадлежит: 주식회사 엘지화학

... 본 발명은 ABS 그라프트 공중합체의 제조방법 및 열가소성 수지 조성물에 관한 것으로서, 본 발명에 따르면 특정 중합개시제를 구분 사용하는 것에 의해 그라프트 중합시 발열 공정을 효율적으로 제어하고, 수득된 ABS 그라프트 공중합체를 포함하는 열가소성 수지 조성물을 제공시 종래와 동등 내지는 유사한 기계적 물성을 제공하는 효과가 있다.

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18-06-2015 дата публикации

METHOD FOR PRODUCING REINFORCED RUBBER THERMOPLASTIC RESIN WITH LARGE DIAMETER AND THERMOPLASTIC RESIN COMPOSITION

Номер: KR1020150067736A
Принадлежит:

The present invention relates to a method for producing a reinforced rubber thermoplastic resin with a large diameter, and to a thermoplastic resin composition including the same. According to an embodiment of the present invention, during a production process, only rubber latex with a large diameter is used; and an emulsifier is specified. Therefore, when the reinforced rubber thermoplastic resin with a large diameter is polymerized, stability of latex is excellent; and surface properties and thermal stability of the thermoplastic resin composition including the reinforced rubber thermoplastic resin with a large diameter are excellent. In addition, the thermoplastic resin composition generates less deposition in a mold. COPYRIGHT KIPO 2015 ...

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18-10-2018 дата публикации

STORAGE CASE FOR ACUPUNCTURE NEEDLES

Номер: KR1020180114328A
Автор: SEOK, JAE MIN
Принадлежит:

The present invention relates to a storage case for acupuncture needles, comprising: a first case (20), wherein an outer storage part (22) to embed an artificial hand therein, and a central storage part (24) to embed acupuncture needs therein and to close an upper surface with a central door (25) rotated by a hinge (26) are partitioned; a first door (30) having a first grip groove (32) closed with respect to the upper surface of the central door (26) of the first case (20) and coupled to the outer upper surface of the first case (20) by a hinge (28) to be able to rotate; a second case (53) connected to the first case (20) by a main hinge (12), receiving a mannequin in a storage part (56), and having a support step (54) formed on one inner side surface; and a second door (40) connected to the outside of the second case (53) by the second hinge (58) to be able to rotate, having an insertion connector (46) formed on an upper surface to be connected to a circuit embedded part (42), and having ...

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11-05-2018 дата публикации

METHOD FOR PREPARING DIENE-BASED RUBBER LATEX, METHOD FOR PREPARING ABS-BASED GRAFT COPOLYMER COMPRISING SAME, AND METHOD FOR MANUFACTURING ABS-BASED INJECTION MOLDED PRODUCT

Номер: WO2018084407A1
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The present invention relates to a method for preparing a diene-based rubber latex, a method for preparing an ABS-based graft copolymer comprising the same, and a method for manufacturing an ABS-based injection molded product and, more specifically, to: a method for manufacturing an in situ bimodal rubber latex, having a small-diameter polymer and a large-diameter polymer, which are formed in a desired ratio, by controlling the content, the time of injection, and the type of reactants during polymerization of a conjugated diene-based monomer, a cross-linking agent having a long linear chain end, an emulsifier comprising a multimer acid of an unsaturated fatty acid or a metal salt thereof, and a molecular weight controller; a method for preparing an ABS-based graft copolymer comprising the same; and a method for manufacturing an ABS-based injection molded product. According to the present invention, the polymerization stability and productivity of a latex can be improved, and when the latex ...

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22-06-2017 дата публикации

THERMOPLASTIC POLYMER, METHOD FOR PREPARING SAME AND THERMOPLASTIC POLYMER COMPOSITION COMPRISING SAME

Номер: WO2017105003A1
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The present invention relates to a thermoplastic polymer, a method for preparing the same, and a thermoplastic polymer composition comprising the same. The present invention has an effect of providing: a thermoplastic polymer having excellent latex stability and being capable of improving the surface gloss and clearance of a resin by reducing the production amount of gas produced in a high-temperature extrusion and injection process upon shell polymerization of a thermoplastic polymer comprising a core-shell structure, wherein a chain fatty acid having a specific branch or functional group or a salt thereof as an emulsifier is included; a method for preparing the same; and a thermoplastic polymer composition comprising the same.

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16-10-2017 дата публикации

디엔계 고무 라텍스의 제조방법 및 이를 포함하는 아크릴로니트릴-부타디엔-스티렌 그라프트 공중합체

Номер: KR0101785768B1
Принадлежит: 주식회사 엘지화학

... 본 발명은 디엔계 고무 라텍스 제조 방법과 이를 포함하는 아크릴로니트릴-부타디엔-스티렌 그라프트 공중합체에 관한 것으로, 고무 라텍스 제조 시에 임계미셀농도(critical micelle concentration, CMC)가 낮은 유화제의 함량 및 투입 시점을 조절함으로써 대구경의 고무 라텍스 및 소구경의 고무 라텍스의 비율이 제어된 디엔계 고무 라텍스 제조 방법과, 이로부터 제조된 디엔계 고무 라텍스를 포함하는 저온 충격 강도가 향상된 아크릴로니트릴-부타디엔-스티렌 그라프트 공중합체와 이를 포함하는 열가소성 수지에 관한 것이다.

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29-08-2017 дата публикации

RUBBER POLYMER AND METHOD OF PRODUCING SAME, GRAFT COPOLYMER, AND THERMOPLASTIC RESIN COMPOSITION

Номер: KR1020170098001A
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The present description relates to a method of producing a rubber polymer; a rubber polymer; a graft copolymer comprising the same; and a thermoplastic resin composition. According to the present description, when polymerization of conjugated diene monomers, a crosslinker, a molecular weight modifier, and an emulsifier is performed, controlling of contents, addition time points, and types of the crosslinker, the emulsifier, and the molecular weight modifier makes it possible to provide a rubber polymer comprising a large-diameter rubber polymer and a small-diameter rubber polymer in a desired ratio; and a graft copolymer and a thermoplastic resin composition having excellent surface gloss and mechanical properties. COPYRIGHT KIPO 2017 ...

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