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    Transcription factor gene induced by water deficit and abscisic acid isolated from Arabidopsis thaliana
    1.
    发明授权
    Transcription factor gene induced by water deficit and abscisic acid isolated from Arabidopsis thaliana 失效
    由拟南芥分离的缺水和脱落酸诱导的转录因子基因

    公开(公告)号：US5981729A

    公开(公告)日：1999-11-09

    申请号：US141135

    申请日：1998-08-27

    Applicant: Jong-Yoon Chun ,  Yong-Hun Lee

    Inventor： Jong-Yoon Chun ,  Yong-Hun Lee

    IPC: C07K14/415 ,  C12N15/11 ,  C12N15/29

    CPC classification number: C07K14/415

    Abstract: This invention relates a novel gene which is induced by water deficit and abscisic acid. The gene encodes for a transcription factor, particularly homeodomain-leucine zipper transcription factor which contains a transcriptional activation domain in the C-terminal region and a DNA-binding domain in the N-terminal region. The gene can be cloned into an expression vector to produce a recombinant DNA expression system suitable for insertion into cells to form a transgenic plant transformed with this gene. The gene of this invention can be also used to produce transgenic plants which exhibit enhanced resistance to drought.

    Abstract translation: 本发明涉及由缺水和脱落酸诱导的新基因。 该基因编码转录因子，特别是同源结构域 - 亮氨酸拉链转录因子，其在C-末端区域中含有转录激活结构域，在N末端区域含有DNA结合结构域。 该基因可被克隆到表达载体中以产生适于插入细胞以形成用该基因转化的转基因植物的重组DNA表达系统。 本发明的基因也可用于产生显示增强的抗旱性的转基因植物。

    Acrylic copolymer composition, method for preparing acrylic copolymer, and vinyl chloride resin composition containing the acrylic copolymer
    5.
    发明授权
    Acrylic copolymer composition, method for preparing acrylic copolymer, and vinyl chloride resin composition containing the acrylic copolymer 有权
    丙烯酸共聚物组合物，丙烯酸共聚物的制备方法和含丙烯酸共聚物的氯乙烯树脂组合物

    公开(公告)号：US07632892B2

    公开(公告)日：2009-12-15

    申请号：US10564417

    申请日：2004-09-03

    Applicant: Yong-Hun Lee ,  Jung-sup Han ,  Hyung-Jun Son

    Inventor： Yong-Hun Lee ,  Jung-sup Han ,  Hyung-Jun Son

    IPC: C08L33/12 ,  C08L27/06

    CPC classification number: C08F220/18 ,  C08F220/14 ,  C08F265/06 ,  C08L27/06 ,  C08L33/12 ,  C08L51/003 ,  C08L55/02 ,  C08L2666/24 ,  C08L2666/02 ,  C08L2666/04

    Abstract: Provided are an acrylic copolymer composition, a method for preparing an acrylic copolymer, and a vinyl chloride resin composition including the acrylic copolymer. The acrylic copolymer composition includes 5-15 wt % of a crosslinking agent and an alkyl acrylate monomer constituting an alkyl acrylate crosslinked polymer and 85-95 wt % of methyl methacrylate and at least one monomer selected from the group consisting of alkyl acrylate and alkyl methacrylate. Addition of the acrylic copolymer to the vinyl chloride resin composition enhances the foaming property of the vinyl chloride resin. Combination of the acrylic copolymer with an impact modifier further enhances the impact strength of the vinyl chloride resin.

    Abstract translation: 提供丙烯酸共聚物组合物，丙烯酸共聚物的制备方法和包含丙烯酸共聚物的氯乙烯树脂组合物。 丙烯酸共聚物组合物包含5-15重量％的交联剂和构成丙烯酸烷基酯交联聚合物的丙烯酸烷基酯单体和85-95重量％的甲基丙烯酸甲酯和至少一种选自丙烯酸烷基酯和甲基丙烯酸烷基酯的单体 。 向氯乙烯树脂组合物中加入丙烯酸共聚物增强了氯乙烯树脂的发泡性能。 丙烯酸共聚物与抗冲改性剂的组合进一步提高氯乙烯树脂的冲击强度。

    Method for preparing acryl based impact-reinforcement
    6.
    发明授权
    Method for preparing acryl based impact-reinforcement 失效
    制备基于丙烯酸的冲击强化的方法

    公开(公告)号：US06989408B2

    公开(公告)日：2006-01-24

    申请号：US10450338

    申请日：2001-12-13

    Applicant: Dong-Jo Ryu ,  Chang-Sun Han ,  Yong-Hun Lee

    Inventor： Dong-Jo Ryu ,  Chang-Sun Han ,  Yong-Hun Lee

    IPC: C08F285/00

    CPC classification number: C08F285/00 ,  C08F265/06 ,  C08L27/06 ,  C08L51/003 ,  C08F2/22 ,  C08F220/12 ,  C08L2666/24

    Abstract: The present invention relates to a preparation method of an acryl-based impact-reinforcement, and more particularly, to a preparation method of an acryl-based reinforcement prepared by blending latex having large particles and latex having small particles, being capable of enhancing impact-resistance of a polyvinyl chloride (PVC) resin. The present invention provides a method of preparing an acryl-based impact reinforcement comprising a step of blending a) 50 to 90 parts by weight of latex having large particles with a particle size of 200 to 500 nm and a core-shell structure and b) 10 to 50 parts by weight of latex having small particles with a particle size of 60 to 140 nm and a core-shell structure. In addition, the present invention provides an impact-reinforcement prepared by the method of the present invention, and a polyvinyl chloride (PVC) composition comprising the same.

    Abstract translation: 本发明涉及一种丙烯酸类抗冲击增强剂的制备方法，更具体地说，涉及通过将具有大颗粒的胶乳和具有小颗粒的胶乳混合制备的丙烯酸类增强剂的制备方法， 聚氯乙烯（PVC）树脂的电阻。 本发明提供一种制备丙烯酸类抗冲击增强材料的方法，其包括以下步骤：a）将50〜90重量份的粒径为200〜500nm的大粒子和核 - 壳结构的胶乳混合，b） 10〜50重量份的粒径为60〜140nm的小粒子和核 - 壳结构的胶乳。 此外，本发明提供了通过本发明的方法制备的冲击强化剂和包含其的聚氯乙烯（PVC）组合物。

    Acrylic rubber latex having bimodal particle distribution
    7.
    发明授权
    Acrylic rubber latex having bimodal particle distribution 有权
    丙烯酸橡胶胶乳具有双峰颗粒分布

    公开(公告)号：US06864303B2

    公开(公告)日：2005-03-08

    申请号：US10220738

    申请日：2002-01-10

    Applicant: Yong-Hun Lee ,  Chang-Sun Han ,  Dong-Jo Ryu

    Inventor： Yong-Hun Lee ,  Chang-Sun Han ,  Dong-Jo Ryu

    IPC: C08F265/06 ,  C08F2/00 ,  C08F285/00 ,  C08L27/06 ,  C08L51/00

    CPC classification number: C08F285/00 ,  C08L27/06 ,  C08L51/003 ,  C08F220/18 ,  C08L2666/24

    Abstract: This invention provides a method for preparing an acrylic rubber latex having a bimodal particle size distribution, comprising the step of; a) preparing seed rubber latex containing i) alkyl acrylate, ii) saturated or unsaturated C1-C9 organic acid, and iii) an acrylic multi-unsaturated monomer; b) preparing a bimodal rubber latex by adding i) alkyl acrylate and iii) an acrylic multi-unsaturated monomer to the seed rubber latex obtained in step a): and c) preparing rubber latex by grafting iv) alkyl methacrylate to the bimodal rubber latex obtained in step b). According to this invention, an acrylic rubber latex can be provided that satisfies the important factors for the improvement of impact resistance, i.e., the particle size of the impact modifier dispersed in a matrix and the distance between impact modifiers, thereby allowing the impact modifier to improve the impact resistance and weatherability of vinyl chloride resin.

    Abstract translation: 本发明提供一种制备具有双峰粒度分布的丙烯酸橡胶胶乳的方法，包括以下步骤： a）制备含有i）丙烯酸烷基酯，ii）饱和或不饱和C 1 -C 9有机酸的混合物，和iii）丙烯酸多不饱和单体; b）通过将i）丙烯酸烷基酯和iii）丙烯酸多不饱和单体加入到步骤a）中获得的种子胶乳中制备双峰橡胶胶乳;和c）通过将iv）甲基丙烯酸烷基酯接枝到双峰橡胶胶乳上制备橡胶胶乳 在步骤b）中获得。 根据本发明，可以提供满足改善耐冲击性的重要因素的丙烯酸橡胶胶乳，即分散在基质中的抗冲击改性剂的粒度和抗冲改性剂之间的距离，从而使抗冲改性剂 提高氯乙烯树脂的耐冲击性和耐候性。

    Method and apparatus for improving the quality of multimedia streaming service
    10.
    发明授权
    Method and apparatus for improving the quality of multimedia streaming service 有权
    提高多媒体流服务质量的方法和装置

    公开(公告)号：US08694669B2

    公开(公告)日：2014-04-08

    申请号：US13187113

    申请日：2011-07-20

    Applicant: Kyung-Mo Park ,  Doug-Young Suh ,  Yong-Hun Lee ,  Jae-Yeon Song

    Inventor： Kyung-Mo Park ,  Doug-Young Suh ,  Yong-Hun Lee ,  Jae-Yeon Song

    IPC: G06F15/16

    CPC classification number: H04L65/4069 ,  H04L47/2416 ,  H04L47/30 ,  H04L65/4084 ,  H04L65/60 ,  H04L65/602 ,  H04L67/02 ,  H04L67/42 ,  H04L69/16 ,  H04N21/234327 ,  H04N21/472 ,  H04N21/6587 ,  H04N21/8456

    Abstract: In an apparatus for providing a multimedia streaming service, a server transmits a Media Presentation Description (MPD) including information about media data to a client, receives a partial request message requesting a part of media data having a range according to a defined range in the MPD, and transmits to the client a segment having the range in response to the partial request message. The segment includes at least one fragment, segment index information indicating the position of the at least one fragment in the segment, and fragment index information indicating the position of each of a plurality of samples included in the at least one fragment.

    Abstract translation: 在用于提供多媒体流服务的设备中，服务器将包括关于媒体数据的信息的媒体呈现描述（MPD）发送给客户端，接收部分请求消息，该部分请求消息请求具有根据所定义的范围内的范围的一部分媒体数据 MPD，并且向客户端发送具有响应于部分请求消息的范围的段。 片段包括至少一个片段，指示片段中至少一个片段的位置的片段索引信息，以及指示包含在至少一个片段中的多个样本中的每一个的位置的片段索引信息。

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