公开(公告)号：US20030157697A1

公开(公告)日：2003-08-21

申请号：US10369532

申请日：2003-02-21

申请人： CHISSO CORPORATION

发明人： Naoyuki Yoshida ,  Kunio Ogasawara

IPC分类号： C07C001/00

CPC分类号： C07D307/77 ,  C07B2200/07 ,  C07C29/147 ,  C07C35/37 ,  C07C49/643 ,  C07C69/013 ,  C07C69/16 ,  C07C2603/68 ,  C07D303/32 ,  C07D317/70 ,  C07D473/00 ,  C07D493/08 ,  C07F7/1804 ,  C12P7/62 ,  C12P15/00 ,  C12P41/004 ,  C07C35/26

摘要： Intermediate compounds, including 2-(t-butyldimethylsilyloxymethyl)-3,4-null(dimethylmethylene)dioxynull-5-hydroxy-tricyclonull5.2.1.02,6nulldec-8-ene, which are useful for the synthesis of neplanocin A having strong antitumor activity. Improved processes for the preparation of neplanocin A, starting from optically active 2-hydroxymethyl-5-hydroxy-tricyclonull5.2.1.02,6nulldeca-3,8-diene and via a key step comprising a retro-Diels-Alder reaction of the above intermediate.

摘要翻译： 中间体化合物，包括2-（叔丁基二甲基甲硅烷氧基甲基）-3,4 - [（二甲基亚甲基）二氧基] -5-羟基 - 三环[5.2.1.02,6]癸-8-烯，其可用于合成奈奎菌素A 具有很强的抗肿瘤活性。 从光学活性的2-羟甲基-5-羟基 - 三环[5.2.1.02,6]癸-3,8-二烯开始制备奈奎育素A的改进方法，通过关键步骤，其包括逆 - 狄尔斯 - 阿尔德反应 以上中间体。

公开(公告)号：US20020143171A1

公开(公告)日：2002-10-03

申请号：US10107195

申请日：2002-03-28

申请人： CHISSO CORPORATION

发明人： Nobuhiko Yui ,  Tooru Ooya ,  Ikuo Sato

IPC分类号： C08B037/00

CPC分类号： C08B37/0072

摘要： This invention relates to a chemically modified hyaluronic acid and salts thereof, which are obtained by O-acylating, alkoxylating or crosslinking a complex consisting of hyaluronic acid or a salt thereof and a cationic compound in a nonaqueous solvent, and a process for the production thereof. The nonaqueous solvent used in the invention is preferably one or more solvents selected from the group consisting of chloroform, toluene, methylene chloride and heptane.

摘要翻译： 本发明涉及通过在非水溶剂中由透明质酸或其盐和阳离子化合物组成的络合物O-酰化，烷氧基化或交联而获得的化学修饰的透明质酸及其盐及其制备方法 。 本发明中使用的非水溶剂优选为选自氯仿，甲苯，二氯甲烷和庚烷中的一种或多种溶剂。

公开(公告)号：US20020091191A1

公开(公告)日：2002-07-11

申请号：US09985287

申请日：2001-11-02

申请人： Chisso Corporation

发明人： Koichi Saito ,  Toshimori Nakai ,  Nobukazu Atsumi ,  Hideshi Ishiwa

IPC分类号： C08K003/40

CPC分类号： C08J5/10 ,  C08J2323/12 ,  C08K7/14 ,  C08L23/12 ,  C08L51/06 ,  C08L53/00 ,  C08L2205/08 ,  C08L2666/24

摘要： Provided are a long fiber-reinforced polypropylene resin composition and its moldings which have a high rigidity, impact resistance and durability, and especially have an extremely good repeated impact resistance and creep resistance, and are therefore suitable for various parts including automobile parts and other industrial parts. The long fiber-reinforced polypropylene resin composition comprises from 35 to 75% by weight of a matrix polymer and contains from 25 to 65% by weight of long glass fibers having a length of from 2 to 50 mm, in which the matrix polymer is a modified propylene homopolymer or a modified propylene-ethylene copolymer prepared by modifying a propylene homopolymer having an isotactic pentad fraction (P) of at least 96% and Mw/Mn (Q) of at most 6, or a crystalline propylene-ethylene copolymer composed of homopolymer segments having an isotactic pentad fraction (P) of at least 96% and Mw/Mn (Q) of at most 6 and propylene-ethylene copolymer segments, with an unsaturated carboxylic acid or its anhydride, or a mixture of the modified propylene homopolymer or propylene-ethylene copolymer and the non-modified propylene homopolymer or crystalline propylene-ethylene copolymer, and has a melt flow rate (230null C., 21.18 N) of at least 50 g/10 min. The resin composition is molded into moldings, optionally after diluted with a diluent of an ordinary propylene-based (co)polymer.

摘要翻译： 提供具有高刚性，耐冲击性和耐久性的长纤维增强聚丙烯树脂组合物及其模制品，特别是具有非常好的反复耐冲击性和抗蠕变性，因此适用于各种零件，包括汽车零件和其他工业 部分。 长纤维增强聚丙烯树脂组合物包含35至75重量％的基质聚合物，并且含有25至65重量％的长度为2-50毫米的长玻璃纤维，其中基质聚合物为 改性丙烯均聚物或通过改性具有至少96％的全同立构五单元组分（P）和至多6的Mw / Mn（Q）的丙烯均聚物或由以下组成的结晶丙烯 - 乙烯共聚物制成的改性丙烯 - 具有至少96％的全同立构五单元组分（P）和至多6的Mw / Mn（Q）和至少6个丙烯 - 乙烯共聚物链段的均聚物链段与不饱和羧酸或其酸酐或改性丙烯均聚物 或丙烯 - 乙烯共聚物和非改性丙烯均聚物或结晶丙烯 - 乙烯共聚物，并且具有至少50g / 10min的熔体流动速率（230℃，21.18N）。 将树脂组合物模制成模制品，任选地在用普通丙烯基（共）聚合物的稀释剂稀释后。

公开(公告)号：US20010038891A1

公开(公告)日：2001-11-08

申请号：US09836315

申请日：2001-04-18

申请人： CHISSO CORPORATION

发明人： Tomoyuki Kondou ,  Shuichi Matsui ,  Kazutoshi Miyazawa ,  Hiroyuki Takeuchi ,  Yasuhiro Kubo ,  Fusayuki Takeshita ,  Etsuo Nakagawa

IPC分类号： C09K019/20 ,  C07C025/13 ,  G02F001/13 ,  C09K019/52

CPC分类号： C07C25/18 ,  C07C43/225 ,  C09K19/12 ,  Y10T428/10

摘要： The present invention provides liquid crystalline compounds having a high voltage holding ratio and a low threshold voltage, little variation of these properties with temperature change, high An, and good compatibility with other liquid crystal materials particularly under a low temperature; liquid crystal compositions containing these crystalline compounds; and liquid crystal display devices made using these liquid crystal compositions. The liquid crystalline compounds are terphenyl derivatives represented by general formula (1): 1 wherein R represents a straight or branched alkyl group of 1-20 carbon atoms, and any methylene groups (nullCH2null) not adjacent each other in each alkyl group may be replaced by oxygen atoms; X is a halogen atom, nullOCF3, nullOCF2H, nullCF3, nullCF2H or nullCFH2; Y1, Y2, Y3, Y4, Y5 and Y6 independently represents H or F, but at least two of Y1, Y2, Y3 and Y4 represent F; and any atom constituting these compounds may be substituted by its isotope.

摘要翻译： 本发明提供了具有高电压保持率和低阈值电压的液晶化合物，这些性质与温度变化的变化很小，高的An，以及与其他液晶材料的相容性，特别是在低温下; 含有这些结晶化合物的液晶组合物; 以及使用这些液晶组合物制成的液晶显示装置。 液晶化合物是由通式（1）表示的三联苯衍生物：其中R表示1-20个碳原子的直链或支链烷基，每个烷基中不相邻的任何亚甲基（-CH 2 - ）可以是 被氧原子取代; X是卤素原子，-OCF 3，-OCF 2 H，-CF 3，-CF 2 H或-CFH 2; Y1，Y2，Y3，Y4，Y5和Y6独立地表示H或F，但Y1，Y2，Y3和Y4中的至少两个表示F; 并且构成这些化合物的任何原子可以被其同位素取代。