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公开(公告)号：KR1020100045282A
公开(公告)日：2010-05-03
申请号：KR1020080104395
申请日：2008-10-23
Applicant: 한국과학기술연구원
CPC classification number: Y02P20/143 , Y02W30/70 , Y02W30/701 , Y02W30/702
Abstract: PURPOSE: A method of recycling a waste foam agent based on low-density polyethylene is provided is provided to remarkably reduce the amount of buried or burned waste low-density polyethylene. CONSTITUTION: A method of recycling a waste foam agent based on low-density polyethylene comprises the following steps: de-crosslinking the waste foam agent at 350~500 deg C with a reaction condition of the pressure of 5~30 mega pascals for 2~30 minutes using supercritical ethanol; and converting the waste foam agent based on the low-density polyethylene into a recycling low density polyethylene class resin. The waste foam agent based on the low-density polyethylene is the waste foam agent using either an organic peroxide cross-linking method or an electron beam cross-linking method.
Abstract translation: 目的：提供一种回收基于低密度聚乙烯的废发泡剂的方法，以显着减少埋藏或燃烧废弃物低密度聚乙烯的量。 构成：基于低密度聚乙烯的废发泡剂回收方法包括以下步骤：将350〜500℃的废泡沫体与5〜30兆帕的反应条件进行脱交，2〜 30分钟使用超临界乙醇; 并将基于低密度聚乙烯的废发泡剂转化为再循环低密度聚乙烯类树脂。 基于低密度聚乙烯的废发泡剂是使用有机过氧化物交联法或电子束交联法的废泡剂。
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公开(公告)号：KR100830093B1
公开(公告)日：2008-05-19
申请号：KR1020070018569
申请日：2007-02-23
Applicant: 한국과학기술연구원
CPC classification number: C08J9/18 , C08J2203/06 , C08J2203/14 , C08J2323/02
Abstract: A method for preparing a polyolefin-based foamed particle is provided to improve the moldability of a polyolefin-based foamed particle and to reduce the cost for treating wasted water by reusing a dispersion medium. A method for preparing a polyolefin-based foamed particle comprises the steps of dispersing linoleic acid, a vegetable oil containing linoleic acid or an organic compound containing a fatty acid of lecithin in a dispersion medium; injecting a polyolefin-based resin particle and a foaming agent to the obtained one and increasing the temperature to prepare a polyolefin-based foamed particle; withdrawing a dispersion medium from the prepared polyolefin-based foamed particle to obtain a polyolefin-based foamed particle; and reusing the withdrawn dispersion medium to the preparation step of the polyolefin-based foamed particle.
Abstract translation: 提供了一种制备聚烯烃基发泡颗粒的方法以改善聚烯烃基发泡颗粒的成型性，并且通过重新使用分散介质来降低处理废水的成本。 制备聚烯烃基发泡颗粒的方法包括将亚油酸，含有亚油酸的植物油或含有卵磷脂的脂肪酸的有机化合物分散在分散介质中的步骤; 将聚烯烃类树脂颗粒和发泡剂注入到所得聚合物基树脂颗粒和发泡剂中，并提高温度以制备聚烯烃基发泡颗粒; 从制备的聚烯烃基发泡颗粒中取出分散介质以获得聚烯烃基发泡颗粒; 并将取出的分散介质重新用于聚烯烃类发泡颗粒的制备步骤。
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公开(公告)号：KR100341293B1
公开(公告)日：2002-06-22
申请号：KR1019990059282
申请日：1999-12-20
Applicant: 한국과학기술연구원
IPC: B01D71/76
CPC classification number: B01D67/0086 , B01D53/228 , B01D67/002 , B01D69/141 , B01D71/64 , B01D2323/06 , B01D2323/12 , B29C47/0021 , B29C47/0026 , B29C47/24 , B29K2105/0079 , C08L79/08 , Y10S55/05
Abstract: 본발명은기체의선택도를한계치이상으로나타내는액정고분자복합분리막에관한것으로서, 보다구체적으로는 50∼99중량%의열가소성수지와 1∼50%중량%의열방성액정고분자와열방성액정고분자의 0.1∼10중량%의상용화제를용융가공하여얻은액정고분자복합분리막에관한것이다. 본발명은또한상기액정고분자복합기체분리막의제조방법에관한것으로서, 상기제조방법은 50∼99중량%의열가소성수지와 1∼50%중량%의열방성액정고분자와열방성액정고분자의 0.1∼10중량%의상용화제를혼합하고, 필름블로잉장치의압출다이에서이축연신시켜필름을제조하는것으로구성된다. 본발명의액정고분자분리막은액정고분자상이막내에균일하게분산되고변형되어기체들의확산에대하여장애물로작용함으로써기체의통로길이가형태학적으로변형되어, 기체분자의크기에따라다른분산상수를가지게하여기체의선택도를한계치이상으로얻을수 있는특성을나타낸다.
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公开(公告)号：KR1020010057209A
公开(公告)日：2001-07-04
申请号：KR1019990059282
申请日：1999-12-20
Applicant: 한국과학기술연구원
IPC: B01D71/76
CPC classification number: B01D67/0086 , B01D53/228 , B01D67/002 , B01D69/141 , B01D71/64 , B01D2323/06 , B01D2323/12 , B29C47/0021 , B29C47/0026 , B29C47/24 , B29K2105/0079 , C08L79/08 , Y10S55/05
Abstract: PURPOSE: A heat dissipative liquid crystal polymer composite gas separation membrane having selective permeability of high performance using morphological adjustment is provided, which has a merit of high permeability and is manufactured only in an extruder thus eliminating solution casting, solution recovery and treatment and can be produced in a mass production method. The membrane can be applied to all heat dissipating liquid crystal polymer and thermo plastic resin, so that can be used for separating gases having different permeability from mixed gas. CONSTITUTION: The separation membrane is prepared by melting 50-99 wt.% of thermo plastic resin, 1-50 wt.% of heat dissipative liquid crystal polymer that is 5-25 wt.% in concentration and normal diffluence agent of 0.1-10 wt.% of heat dissipative liquid crystal polymer and by processing.
Abstract translation: 目的：提供一种使用形态调整具有高性能选择性渗透性的散热液晶聚合物复合气体分离膜，其具有高渗透性，仅在挤出机中制造，从而消除了溶液流延，溶液回收和处理，并且可以 以批量生产方式生产。 该膜可以应用于所有散热液晶聚合物和热塑性树脂，从而可用于从混合气体中分离具有不同渗透性的气体。 构成：分离膜通过将50-99重量％的热塑性树脂，1-50重量％的热分散液晶聚合物，浓度为5-25重量％，正常分散剂0.1-10重量％ 散热液晶聚合物的重量百分比，并通过加工。
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公开(公告)号：KR1020010053844A
公开(公告)日：2001-07-02
申请号：KR1019990054374
申请日：1999-12-02
Applicant: 한국과학기술연구원
IPC: C08G77/00
Abstract: PURPOSE: Provided is poly aliphatic aromatic silsesquioxane, which is soluble in organic solvents and excellent in heat-resistance, combustion-resistance, and flexibility and can be used as a heatproof coating agent, an optical fiber protection coating agent, an adhesive, a release paper, a protection film of semiconductor, resist material, etc. CONSTITUTION: The high regular poly aliphatic aromatic silsesquioxane (formula 1) is produced by condensing 1,3-organodisiloxane (formula 2) solution in an organic solvent at a temperature of 50-350deg.C in the presence of a catalyst selected from the consisting of an alkali metal hydroxide, an amine, a quaternary ammonium salt, and a fluoride. In the formula, one of R1 and R2 is unsubstituted or substituted monovalent aliphatic hydrocarbon and the other is unsubstituted or substituted monovalent aromatic hydrocarbon, X is H, Cl, OH, NH2, or COOH, R is H, alkyl, acetate, or an alkali metal.
Abstract translation: 目的：提供聚脂肪族芳香族倍半硅氧烷，其可溶于有机溶剂，耐热性，耐燃性和柔软性优异，可用作耐热涂层剂，光纤保护涂层剂，粘合剂，释放 纸，半导体保护膜，抗蚀剂材料等。构成：高规则的聚脂肪族芳族倍半硅氧烷（式1）是通过在有机溶剂中在50℃的温度下将1,3-有机二硅氧烷（式2） 在选自由碱金属氢氧化物，胺，季铵盐和氟化物组成的催化剂存在下进行。 在该式中，R 1和R 2中的一个为未取代或取代的一价脂族烃，另一个为未取代或取代的一价芳族烃，X为H，Cl，OH，NH 2或COOH，R为H，烷基，乙酸酯或 碱金属。
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Patent Agency Ranking76.发明公开폴리이미드화 졸-겔 전구체, 공소화된 졸-겔 단량체 및 이들로부터 제조된 공소화된 유기-무기 혼성 절연 저유전체 재료 有权聚酰亚胺溶胶凝胶前驱体，无声溶胶凝胶单体和无机有机无机绝缘低介电性物质
公开(公告)号：KR1020010026296A
公开(公告)日：2001-04-06
申请号：KR1019990037548
申请日：1999-09-04
Applicant: 한국과학기술연구원
IPC: C08G73/10
Abstract: PURPOSE: Provided are a polyimide sol-gel precursor, a void sol-gel monomer and a void organic-inorganic insulating low-dielectric substance prepared therefrom, which has high mechanic strength and lowered dielectric constant. CONSTITUTION: The polyimide sol-gel precursor having a triethoxysilane for a sol-gel process at a branch of polyimide is represented by the following formula (1). The polyimide sol-gel precursor having a triethoxysilane for a sol-gel process at a branch of adamantyl polyimide is represented by the following chemical formula (2) or (3). In the formulae (1), (2) and (3), X is a triethoxysilane containing an aromatic compound for a sol-gel process. The void sol-gel monomer is selected from compounds described as the formulae (5), (6), (7) and (8) in a description. The void organic-inorganic insulating low-dielectric substance is prepared by easily covalent bond with the void sol-gel monomer and is represented by the following formula (4).
Abstract translation: 目的：提供一种聚酰亚胺溶胶 - 凝胶前体，空穴溶胶 - 凝胶单体和由其制备的空隙有机 - 无机绝缘低介电物质，其机械强度高和介电常数降低。 构成：在聚酰亚胺的分支处具有用于溶胶 - 凝胶法的三乙氧基硅烷的聚酰亚胺溶胶 - 凝胶前体由下式（1）表示。 在金刚烷基聚酰亚胺的支链上具有用于溶胶 - 凝胶法的三乙氧基硅烷的聚酰亚胺溶胶 - 凝胶前体由以下化学式（2）或（3）表示。 在式（1），（2）和（3）中，X是含有用于溶胶 - 凝胶法的芳族化合物的三乙氧基硅烷。 空隙溶胶凝胶单体选自在描述中描述为式（5），（6），（7）和（8）的化合物。 空隙有机 - 无机绝缘性低介电物质通过与空穴溶胶 - 凝胶单体容易共价键合而制备，并由下式（4）表示。
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公开(公告)号：KR102200472B1
公开(公告)日：2021-01-08
申请号：KR1020187033777
申请日：2017-04-21
IPC: H05K9/00 , H01L23/29 , H01L23/552
Abstract: 본개시는전자기차폐를제공하는재료및 그러한전자기차폐를제공하는방법에관한것이다. 특히, 본개시는이러한목적으로 2차원전이금속탄화물, 질화물및 탄질화물재료의사용을기술한다.
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