公开(公告)号：US5707910A

公开(公告)日：1998-01-13

申请号：US623165

申请日：1996-03-28

申请人： Tokio Kamiyanagi ,  Takayuki Fujita ,  Noriho Harumiya

发明人： Tokio Kamiyanagi ,  Takayuki Fujita ,  Noriho Harumiya

IPC分类号： B01J2/04 ,  C01F7/16 ,  C04B35/443 ,  C04B35/626 ,  C04B38/00 ,  C04B35/04 ,  C04B35/10

CPC分类号： C01F7/162 ,  C01P2002/70 ,  C01P2004/34 ,  C01P2004/61 ,  C01P2006/10

摘要： An object of the present invention is to provide an alumina-magnesia oxide which can be fine pulverulent bodies by pulverizing. In the alumina-magnesia oxide of the present invention includes: 70-73 WT % of alumina component, which is converted into alumina (Al.sub.2 O.sub.3); and 27-30 WT % of magnesia component, which is converted into magnesia (MgO). The alumina-magnesia oxide is formed into a pulverulent body, which is a hollow grain having loosed bulk density of 0.15 g/cm.sup.3 or less and average grain diameter of 10 .mu.m or more.

摘要翻译： 本发明的目的是提供氧化铝 - 氧化镁，其可以通过粉碎而成为细粉碎体。 在本发明的氧化铝 - 氧化镁中，包括70-73WW％的氧化铝组分，其转化为氧化铝（Al 2 O 3）; 和27-30％WT的氧化镁组分，其转化为氧化镁（MgO）。 氧化铝 - 氧化镁形成为粉状体，其是松散体积密度为0.15g / cm 3以下，平均粒径为10μm以上的中空粒子。

公开(公告)号：US5486497A

公开(公告)日：1996-01-23

申请号：US191933

申请日：1994-02-04

申请人： Kyuji Katsuoka ,  Noriho Harumiya ,  Tadahiro Hashizume ,  Tadashi Kitahara

发明人： Kyuji Katsuoka ,  Noriho Harumiya ,  Tadahiro Hashizume ,  Tadashi Kitahara

IPC分类号： C04B35/18 ,  C04B35/622 ,  D02G3/06 ,  C04B35/10

CPC分类号： C04B35/62227 ,  C04B35/18 ,  Y10T428/2913 ,  Y10T428/298

摘要： The present invention relates to a ceramic fiber yarn, which has higher weaving and knitting performance. The ceramic fiber yarn comprises a group of filaments, the filaments being made by the steps of spinning mother liquid, which comprises colloidal silica and basic aluminum chloride, and firing, the filaments comprising 67-75 wt % of alumina and 25-33 wt % of silica and mainly having polycrystalline transition alumina, and is characterized in that: the loop strength of each the filament, which is measured by a wire having diameter of 0.5 mm, is at or greater than 2.5.times.10.sup.-2 N (N: Newton); and the crystal structure of the filament substantially changes to polycrystalline mullite after heating for 30 minutes at the temperature of 1,400.degree. C.

摘要翻译： 本发明涉及一种具有较高织造和针织性能的陶瓷纤维纱线。 陶瓷纤维纱线由一组长丝组成，长丝由以下步骤制成：母体液体，其包括胶体二氧化硅和碱性氯化铝，并焙烧，所述长丝包含67-75重量％的氧化铝和25-33重量％ 的二氧化硅并且主要具有多晶转变氧化铝，其特征在于：通过直径为0.5mm的线测量的每根细丝的环路强度为或大于2.5×10 -2 N（N：牛顿） ; 并且在1400℃的温度下加热30分钟后，丝的晶体结构基本上变为多晶莫来石。

公开(公告)号：US4478717A

公开(公告)日：1984-10-23

申请号：US382566

申请日：1982-05-27

申请人： Masaru Kurihara ,  Noriho Harumiya ,  Tadahiro Uemura

发明人： Masaru Kurihara ,  Noriho Harumiya ,  Tadahiro Uemura

IPC分类号： B01D67/00 ,  B01D31/00

CPC分类号： B01D67/0088

摘要： A membrane treating agent for rejuvenating and improving a rejection performance of a semipermeable membrane, which contains an effective amount of a modified vinyl polymer having acetoxy groups and at least one group represented by the Formula (I) and/or (II): ##STR1## wherein R is a radical selected from the group consisting of aliphatic, aromatic and heterocyclic radicals having from 1 to 9 carbon atoms, and n is an integer from 1 to 3.Valuable modified vinyl polymers are obtained by reacting a partially saponified vinyl polymer with at least one carboxylic acid such as maleic acid, phthalic acid, succinic acid, butane tetracarboxylic acid and/or acid anhydrides or acid chlorides thereof.

摘要翻译： 一种用于再生和改善半透膜的排斥性能的膜处理剂，其含有有效量的具有乙酰氧基和至少一个由式（I）和/或（II）表示的基团的改性乙烯基聚合物：（I）OR（COOH）n（II）其中R是选自具有1至9个碳原子的脂族，芳族和杂环基团的基团，n是1至3的整数。有价值的改性乙烯基 聚合物通过部分皂化的乙烯基聚合物与至少一种羧酸如马来酸，邻苯二甲酸，琥珀酸，丁烷四羧酸和/或酸酐或其酰氯反应而获得。