公开(公告)号：US06441075B2

公开(公告)日：2002-08-27

申请号：US08837874

申请日：1997-04-25

申请人： Tomio Hirata ,  Kazuo Matsuyama ,  Kazuyuki Yamamoto ,  Kazushige Ohnishi ,  Minoru Adachi ,  Tamihiro Ohashi ,  Motoru Komatsu ,  Satoru Ichikawa ,  Masahiro Terada ,  Hirosuke Kamae ,  Akira Kawai

发明人： Tomio Hirata ,  Kazuo Matsuyama ,  Kazuyuki Yamamoto ,  Kazushige Ohnishi ,  Minoru Adachi ,  Tamihiro Ohashi ,  Motoru Komatsu ,  Satoru Ichikawa ,  Masahiro Terada ,  Hirosuke Kamae ,  Akira Kawai

IPC分类号： C08K300

CPC分类号： C08L53/00 ,  C08L2666/04

摘要： The invention relates to a polyolefin-based resin composition that is in an amount of 100 wt % in total. This composition includes (a) 60-66 wt % of a crystalline propylene-ethylene block copolymer, (b) 12-20 wt % of an ethylene-propylene copolymer rubber, and (c) 18-25 wt % of an inorganic filler. The block copolymer contains a first segment of a homopolymer of propylene and a second segment of a copolymer of propylene and ethylene, and has an isotactic pentad tacticity of at least 0.96. The ratio of the weight average molecular weight of the block copolymer to the number average molecular weight thereof is not greater than 6. The copolymer rubber contains therein 50-60 wt % of ethylene, and has a Mooney viscosity of from 45 to 55 at 125° C. The inorganic filler is one selected from the group consisting of a talc, a first combination of the talc and a glass fiber, and a second combination of the talc and a whisker. The talc has an average particle diameter of not greater than 2 &mgr;m. The glass fiber has an average fiber length of from 5 to 10 mm and an average diameter of from 15 to 20 &mgr;m. The whisker has an average fiber length of from 15 to 25 &mgr;m and an average diameter of from 0.5 to 1 &mgr;m. A molded plastic article made from the resin composition is substantially improved in scratch resistance.

摘要翻译： 本发明涉及总量为100重量％的聚烯烃基树脂组合物。 该组合物包括（a）60-66重量％的结晶丙烯 - 乙烯嵌段共聚物，（b）12-20重量％的乙烯 - 丙烯共聚物橡胶，和（c）18-25重量％的无机填料。 嵌段共聚物含有丙烯均聚物的第一段和丙烯与乙烯的共聚物的第二段，并且具有至少0.96的全同立构五单元组立构规整度。 嵌段共聚物的重均分子量与其数均分子量的比例不大于6.共聚物橡胶中含有50-60重量％的乙烯，并且在125℃时门尼粘度为45至55 无机填料是选自滑石，滑石和玻璃纤维的第一组合以及滑石和晶须的第二组合的组。 滑石的平均粒径不大于2μm。 玻璃纤维的平均纤维长度为5〜10mm，平均直径为15〜20μm。 晶须的平均纤维长度为15至25μm，平均直径为0.5至1μm。 由树脂组合物制成的模制塑料制品的耐刮擦性大大提高。

公开(公告)号：US3944622A

公开(公告)日：1976-03-16

申请号：US396660

申请日：1973-09-12

申请人： Takehiko Okamoto ,  Tamihiro Ohashi ,  Isao Koga

发明人： Takehiko Okamoto ,  Tamihiro Ohashi ,  Isao Koga

IPC分类号： C07C45/45 ,  C07C45/48 ,  C07C45/72 ,  C07C45/00

CPC分类号： C07C45/45 ,  C07C45/48 ,  C07C45/72

摘要： Ketones are prepared with a high yield and a prolonged catalyst life, by reacting an aldehyde selected from the group consisting of straight chain or branched chain aliphatic aldehydes having a carbon number of 4-10 (inclusive) and aromatic aldehydes represented by the general formula of ##SPC1##Wherein n is 0-5 with a monocarboxylic acid selected from the group consisting of acetic acid and propionic acid, at a temperature of 200.degree.-600.degree.C, in the presence of a catalyst of zirconium oxide alone or a mixture of zirconium oxide and at least one kind of the metal oxide selected from the group consisting of alkali metal oxides and alkaline earth metal oxides.

摘要翻译： 通过使选自碳数为4-10（含）的直链或支链脂肪族醛的醛与通式 在含有氧化乙烯和丙酸的基团中选择的单羧酸在200℃-600℃的温度下，在单独的氧化锆催化剂或氧化锆和 至少一种选自碱金属氧化物和碱土金属氧化物的金属氧化物。