公开(公告)号：US5130113A

公开(公告)日：1992-07-14

申请号：US566474

申请日：1990-08-22

申请人： Mikito Kitayama ,  Kazuyuki Yokoo ,  Yukio Oda ,  Yasuo Kawai ,  Mitsuhiko Morihira ,  Osamu Morooka ,  Yuji Shibue

发明人： Mikito Kitayama ,  Kazuyuki Yokoo ,  Yukio Oda ,  Yasuo Kawai ,  Mitsuhiko Morihira ,  Osamu Morooka ,  Yuji Shibue

IPC分类号： C01F7/02 ,  C04B14/30 ,  C08K3/22

CPC分类号： C08K3/22 ,  C01F7/023 ,  C04B14/303 ,  C01P2004/03 ,  C01P2004/32 ,  C01P2004/51 ,  C01P2004/61 ,  C01P2006/12 ,  C01P2006/19 ,  C01P2006/22 ,  C01P2006/60 ,  C01P2006/82 ,  C01P2006/90 ,  C04B2111/545

摘要： Aluminum hydroxide having a particle size of 2 to 30 .mu.m and having small specific surface area and low resin filling viscosity can be prepared by using precipitated aluminum hydroxide composed of secondary agglomerated particles having a primary particle size almost equal to the desired average particle size of intended pulverized aluminum hydroxide as the starting material to be pulverized and pulverizing this starting aluminum hydroxide. This aluminum hydroxide has an average particle size of 2 to 30 .mu.m, a surface roughness coefficient Sr/Sc (in which Sr represents the specific surface area of particles measured by the nitrogen adsorption method and Sc represents the specific surface area calculated from the size of particles approximated to spheres while taking the particle size distribution of particles into consideration) smaller than 2.5 and a linseed oil absorption smaller than 30 cc/100 g as determined according to JIS K-5101.

摘要翻译： PCT No.PCT / JP89 / 01123 Sec。 371日期1990年8月22日 102（e）日期1990年8月22日PCT提交1989年10月31日PCT公布。 出版物WO90 / 08737 日期为1990年8月9日。粒径为2〜30μm，比表面积小，树脂填充粘度低的氢氧化铝可以通过使用由初级粒径几乎相等的二次凝集粒子构成的沉淀氢氧化铝 达到期望的粉碎氢氧化铝的平均粒度，作为待粉碎的原料并粉碎该起始氢氧化铝。 该氢氧化铝的平均粒径为2〜30μm，表面粗糙度系数Sr / Sc（Sr表示通过氮吸附法测定的粒子的比表面积，Sc表示从尺寸计算出的比表面积 的颗粒接近球体，同时考虑到颗粒的粒度分布）小于2.5，亚麻子油吸收小于30cc / 100g，根据JIS K-5101测定。

公开(公告)号：US4829103A

公开(公告)日：1989-05-09

申请号：US154419

申请日：1988-02-10

申请人： Yukio Oda ,  Mikito Kitayama

发明人： Yukio Oda ,  Mikito Kitayama

IPC分类号： C08L67/06 ,  C04B14/30 ,  C04B26/18 ,  C08K3/22 ,  C08L101/00

CPC分类号： C04B14/303 ,  C08K3/22 ,  C04B2111/545

摘要： An unsaturated polyester resin composition suitable for an onyx-like artificial marble is obtained by using aluminum hydroxide having an average primary particle size of at least 20 .mu.m or a mixture thereof with aluminum hydroxide pulverized from the above aluminum hydroxide and having an average particle size of at least 15 .mu.m. This composition has an improved transparency, a reduced coloration, and a good productivity.

公开(公告)号：US5164425A

公开(公告)日：1992-11-17

申请号：US637237

申请日：1991-01-03

申请人： Hiroshi Uchida ,  Masato Kaneda ,  Mikito Kitayama

发明人： Hiroshi Uchida ,  Masato Kaneda ,  Mikito Kitayama

IPC分类号： C04B26/10 ,  C04B26/18 ,  C08F299/04

CPC分类号： C04B26/18 ,  C04B26/10 ,  C08F299/0485 ,  C04B2103/0047 ,  C04B2111/545

摘要： A composition for artificial marble comprising (a) 10 to 60% by weight of an allyl-terminated oligomer, (b) 40 to 86% by weight of an inorganic filler and (c) 0 to 30% by weight of a reactive monomer. The composition provides artificial marble having a deep appearance characteristic of marble and having a high strength and high abrasion resistance.

摘要翻译： 一种人造大理石组合物，其包含（a）10至60重量％的烯丙基封端的低聚物，（b）40至86重量％的无机填料和（c）0至30重量％的反应性单体。 该组合物提供具有大理石深层外观特征且具有高强度和高耐磨性的人造大理石。