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公开(公告)号：KR1020140087536A
公开(公告)日：2014-07-09
申请号：KR1020120157953
申请日：2012-12-31
Applicant: 현대자동차주식회사
IPC: C07D319/10 , B01J6/00 , C07B61/00
CPC classification number: C07D319/12
Abstract: The present invention relates to a method for producing lactide using a solvent. In a second step when the lactide is produced, an ionic liquid is used as a solvent so that the mobility of a reactant is ensured. Then, reaction temperature is decreased and moisture generated during the reaction is absorbed from the ionic liquid, so that the lactide which is weak in the presence of moisture is not decomposed. In addition, the lactide can be continuously produced by continuously adding oligomers. The contamination of a reactor caused by a reaction by-product is minimized by means of the ionic liquid, and a solvent for washing the reactor is not needed. Furthermore, by means of the high boiling point of the ionic liquid, the ionic liquid can be easily collected and recycled.
Abstract translation: 本发明涉及使用溶剂制备丙交酯的方法。 在制备丙交酯的第二步中，使用离子液体作为溶剂，从而确保反应物的迁移率。 然后，反应温度降低，反应中产生的水分从离子液体吸收，使得在水分存在下弱的丙交酯不分解。 此外，丙交酯可以通过连续添加低聚物连续制备。 由反应副产物引起的反应器的污染通过离子液体被最小化，并且不需要用于洗涤反应器的溶剂。 此外，通过离子液体的高沸点，可以容易地收集和再循环离子液体。
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公开(公告)号：KR101326524B1
公开(公告)日：2013-11-07
申请号：KR1020120048680
申请日：2012-05-08
Applicant: 현대자동차주식회사
IPC: C08G63/78 , C08G63/08 , C07D319/12 , C08L67/04
Abstract: The present invention relates to a preparing method of lactide from a lactic acid at high yield. A low molecular weight polylactic acid is obtained by a polymerization reaction based on a D type lactic acid as a starting material and is thermally decomposed to manufacture D type lactide to obtain the D type lactide at high yield based on a simple method. The manufacturing costs of polylactic acid resin can be reduced using the D type lactide as the raw material of a D type polylactic acid. The lactide can be used for various uses such as vehicle engine, chassis parts, bioplastic, and display housing as biomass derived materials. [Reference numerals] (AA) Perform fermentation from biomass;(BB) Extract and separate D type lactic acid;(CC) Convert the D type lactic acid into D type lactide;(DD) Polymerize D type polylactic acid;(EE) Pulverize the polymer
Abstract translation: 本发明涉及以高产率从乳酸制备丙交酯的方法。 通过基于D型乳酸作为原料的聚合反应获得低分子量聚乳酸，并且通过简单的方法被热分解以制备D型丙交酯以获得高产率的D型丙交酯。 使用D型丙交酯作为D型聚乳酸的原料，可以降低聚乳酸树脂的制造成本。 丙交酯可用作各种用途，例如车辆发动机，底盘部件，生物塑料和显示器壳体作为生物质衍生材料。 （AA）从生物质进行发酵;（BB）提取和分离D型乳酸;（CC）将D型乳酸转化为D型丙交酯;（DD）聚合D型聚乳酸;（EE）粉碎 聚合物
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公开(公告)号：KR101326521B1
公开(公告)日：2013-11-07
申请号：KR1020110050307
申请日：2011-05-26
Applicant: 현대자동차주식회사
IPC: C07D319/12 , C07C59/08
CPC classification number: C07D319/12
Abstract: 본 발명은 액상의 D타입 유산으로부터 D타입 락타이드를 제조하는 방법 및 제조된 D타입 락타이드로부터 중량평균 분자량 50,000 ~ 20,000g/mol의 D타입 폴리유산을 제조하는 방법에 관한 것이다.
본 발명의 방법은 기존의 제조 방법에 비해 간단한 공법으로 고수율의 D타입락타이드를 얻을 수 있는 장점이 있다. 결국 상기 D타입 락타이드로부터 최종적으로 얻어지는 D타입 폴리유산의 원가를 낮출 수 있는 장점이 있다.Abstract translation: 本发明涉及一种方法，用于生产d型锁定方法用于生产捆和具有d型丙交酯从在d式液体乳酸制备50000〜20000克/ mol的重均分子量d型聚乳酸。
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公开(公告)号：KR1020130099623A
公开(公告)日：2013-09-06
申请号：KR1020120021266
申请日：2012-02-29
Applicant: 현대자동차주식회사 , 서울대학교산학협력단
IPC: C07D319/12 , B01J31/02
Abstract: PURPOSE: A method for preparing lactide from lactic acid is provided to obtain high purity lactide with high yield, thereby lowering cost for producing polylactic acid. CONSTITUTION: A method for preparing lactide comprises the steps of: performing catalytic reaction of a lactic acid solution with water under the presence of a first organic solvent; performing phase separation of the product and forming a mixture of a second organic solvent and water; and extracting and evaporating the isolated organic part to obtain lactide. The lactic acid solution contains 10-98 % lactic acid. [Reference numerals] (AA) Lactic acid solution; (BB) Mixing lactic acid solution with xylene; (CC) Catalyst reacting with the mixture of lactic acid solution and xylene (reaction temperature: around 130°C); (DD) Mixing the reactant of the previous step, ethyl acetate and water; (EE) Separating organic phase part after extracting reaction and evaporating; (FF) Collecting solid phased lactide
Abstract translation: 目的：提供从乳酸制备丙交酯的方法，以高产率获得高纯度丙交酯，从而降低生产聚乳酸的成本。 构成：制备丙交酯的方法包括以下步骤：在第一有机溶剂的存在下进行乳酸溶液与水的催化反应; 进行产物的相分离并形成第二有机溶剂和水的混合物; 并萃取并蒸发分离的有机部分以获得丙交酯。 乳酸溶液含有10-98％的乳酸。 （AA）乳酸溶液; （BB）将乳酸与二甲苯混合; （CC）催化剂与乳酸和二甲苯的混合物反应（反应温度：约130℃）; （DD）混合前一步骤的反应物，乙酸乙酯和水; （EE）萃取反应并蒸发后分离有机相部分; （FF）收集固相化丙交酯
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公开(公告)号：KR1020120131851A
公开(公告)日：2012-12-05
申请号：KR1020110050307
申请日：2011-05-26
Applicant: 현대자동차주식회사
IPC: C07D319/12 , C07C59/08
CPC classification number: C07D319/12
Abstract: PURPOSE: A method for preparing type D lactide from type D lactic acid of a liquid phase is provided to lower cost for preparing type D polylactic acid. CONSTITUTION: A method for preparing type D lactide comprises: a step of converting type D lactic acid into type D polylactic acid at 130-150 Deg. C. and a pressure of 10-200 torr; a step of heating the type D polylactic acid under a zinc oxide catalyst at 230-240 Deg. C. to convert the liquid phase into a gas phase stream; a step of cooling the gas phase stream at -78 Deg. C. to 10 Deg. C. and separating the gas phase stream into unreacted lactic acid and a mixture; a step of mixing the mixture and water and isolating type D lactide. [Reference numerals] (a) Reactor; (b) Mixture; (c) Lactic acid recycle; (d) Water; (e) Pure lactide
Abstract translation: 目的：提供一种从液相D型乳酸制备D型丙交酯的方法，以降低制备D型聚乳酸的成本。 构成：制备D型丙交酯的方法包括：将D型乳酸转化为130-150度的D型聚乳酸的步骤。 C.压力为10-200乇; 在氧化锌催化剂下以230-240度加热D型聚乳酸的步骤。 C.将液相转化成气相物流; 在-78度下冷却气相物流的步骤。 C.到10度 并将气相物流分离成未反应的乳酸和混合物; 将混合物和水混合并分离D型丙交酯的步骤。 （附图标记）（a）反应器; （b）混合物; （c）乳酸回收; （d）水; （e）纯丙交酯
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Patent Agency Ranking
公开(公告)号：KR101826545B1
公开(公告)日：2018-02-07
申请号：KR1020150108916
申请日：2015-07-31
Applicant: 현대자동차주식회사
IPC: F01N13/14 , F01N13/10 , F01N13/16 , C09D5/18 , C09D183/00
CPC classification number: F01N13/14 , F01N13/16 , F01N2510/02
Abstract: 차량용배기시스템이개시된다. 개시된차량용배기시스템은배기가스가통과하는배기가스유동관로의내 벽면에형성되는단열코팅층을포함하되, 단열코팅층은, 2종이상의실리콘계화합물을포함하는무기바인더및 상기무기바인더에분산된에어로겔을포함할수 있다.
Abstract translation: 公开了一种车辆排气系统。 汽车排气系统中公开，包括：形成在所述排气流动管道到所述排气通道的内壁表面上的隔热涂层，所述热绝缘覆盖层包括分布式气凝胶无机粘合剂和包括在所述第二纸用硅氧烷化合物的无机粘合剂 你可以。
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公开(公告)号：KR101755460B1
公开(公告)日：2017-07-07
申请号：KR1020150160338
申请日：2015-11-16
Applicant: 현대자동차주식회사 , 우니베르지테트 추 쾰른
IPC: H01M8/02
CPC classification number: H01M8/0228 , H01M8/0206 , H01M8/0213 , H01M8/0215 , Y02P70/56
Abstract: 본발명의일 구현례에의한연료전지용분리판은분리판의일면또는양면에위치하는제 1 탄화금속코팅층; 상기제 1 탄화금속코팅층의상부에위치하는금속코팅층; 및상기금속코팅층의상부에위치하는제 2 탄화금속코팅층을포함하는것일수 있다.
Abstract translation: 根据本发明实施方式的用于燃料电池的隔板包括：位于隔板的一侧或两侧上的第一碳化金属涂层; 设置在第一碳化金属涂层上的金属涂层; 以及设置在金属涂层上的第二碳化金属涂层。
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公开(公告)号：KR101724456B1
公开(公告)日：2017-04-07
申请号：KR1020150106104
申请日：2015-07-27
Applicant: 현대자동차주식회사
CPC classification number: H01M8/0245 , H01M8/0206 , H01M8/0228 , H01M8/0234 , H01M8/0236 , H01M2250/20 , Y02T90/32
Abstract: 본발명의일 실시예에의한연료전지용분리판의코팅방법은프리커서를기화시켜프리커서가스를제조하는단계; 상기프리커서가스및 반응성가스를반응챔버내로도입시키는단계; 및상기반응챔버에전압을가하여상기프리커서가스및 반응성가스를플라즈마상태로변화시켜모재에코팅층을형성하는단계를포함할수 있다.
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公开(公告)号：KR1020170002756A
公开(公告)日：2017-01-09
申请号：KR1020150092330
申请日：2015-06-29
Applicant: 현대자동차주식회사
Abstract: 본발명은디젤매연여과필터(DPF) 및터보차저의표면에저열전도및 저중량의다공성코팅층을형성시킬수 있는디젤매연여과필터용다공성코팅제에관한것으로서, 본발명의일 실시예에따른디젤매연여과필터용다공성코팅제는디젤매연여과필터및 터보차저의표면에스프레이되어단열코팅층을형성하는코팅제로서, 에어로겔 5 ~ 10wt%와잔부바인더가혼합된것을특징으로한다.
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公开(公告)号：KR101684508B1
公开(公告)日：2016-12-08
申请号：KR1020150108331
申请日：2015-07-30
Applicant: 현대자동차주식회사
Abstract: 본발명은제1 바인더수지 80중량% 내지 99중량% 및에어로겔 1중량% 내지 20중량%;를포함하고 1㎛내지 300㎛의두께를갖는제1열팽창흡수층; 및제2 바인더수지 50중량% 내지 95중량% 및에어로겔 5 중량% 내지 50중량%;를포함하고 1㎛내지 300㎛의두께를갖는제2열팽창흡수층;을포함하고, 상기제1열팽창흡수층및 제2열팽창흡수층서로간의에어로겔함량이상이한, 단열성다층복합체에관한것이다.
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