公开(公告)号：US6147175A

公开(公告)日：2000-11-14

申请号：US194384

申请日：1998-11-19

申请人： Jean-Paul Bonhoure ,  Jacques Doumeizel ,  Denis Thery

发明人： Jean-Paul Bonhoure ,  Jacques Doumeizel ,  Denis Thery

IPC分类号： B24C11/00 ,  C08B31/00 ,  C09K3/14 ,  C08B33/00

CPC分类号： B24C11/005 ,  B24C11/00 ,  C08B31/003 ,  C09K3/1409

摘要： The invention relates to the field of biological chemistry, and to polysaccharides in particular. Specifically, it concerns biological products obtained as a result of the polymerization and crosslinking in an alkaline medium of a gel, comprised of wheat or spelt wheat flour, in the presence of a dual-function crosslinking reagent. The invention further relates to a process for obtaining said biological products, consisting in forming an aqueous dispersion of flour, rendering this dispersion alkaline by adding an alkaline metal hydroxide, performing polymerization and crosslinking in the presence of a dual-function crosslinking reagent, and drying the resultant gel to obtain a vitreous, lightly colored product with a solid substance content of between 75% and 85% which is then ground into hard particles of a predetermined size. The application of the invention is abrasive particles.

摘要翻译： PCT No.PCT / FR98 / 00658 Sec。 371日期：1998年11月19日 102（e）1998年11月19日日期PCT提交1998年4月1日PCT公布。 WO98 / 44004 PCT出版物 日期1998年10月8日本发明涉及生物化学领域，特别涉及多糖。 具体而言，涉及在双功能交联试剂的存在下，在由小麦或拼小麦粉组成的凝胶的碱性介质中聚合和交联而获得的生物产物。 本发明还涉及一种获得所述生物制品的方法，其包括形成面粉水分散体，通过加入碱金属氢氧化物使该分散体呈碱性，在双功能交联剂存在下进行聚合和交联，并干燥 得到的凝胶以获得固体物质含量为75％至85％的玻璃状，浅色产品，然后将其研磨成预定尺寸的硬颗粒。 本发明的应用是磨料颗粒。

公开(公告)号：US4678519A

公开(公告)日：1987-07-07

申请号：US793346

申请日：1985-10-31

申请人： Joseph Schapira ,  Victor Ken ,  Denis Thery ,  Stephane Jelodin

发明人： Joseph Schapira ,  Victor Ken ,  Denis Thery ,  Stephane Jelodin

IPC分类号： C23C22/78 ,  C23C22/80 ,  C23C22/82

CPC分类号： C23C22/80

摘要： Method of zinc phosphatization of substrates essentially based on iron, zinc or their alloys, comprising successively:(1) one or several alkaline degreasing steps,(2) one or several rinsing steps with running city water,(3) an activating and refining step,(4) the zinc phosphatization step proper,(5) one or several rinsing steps with water,(6) preferably, a passivating final rinsing step, particularly by means of salts of hexavalent chromium or mixtures of hexavalent chromium and trivalent chromiumcharacterized by the fact that, to carry out the activating and refining step, recourse is had to a bath comprising, besides the conventional constituents among which are particularly at least one Jernstedt salt in a proportion corresponding to about 1 to 100 ppm of titanium, a proportion of 10 to 700 ppm, preferably from 50 to 200 ppm, of at least one alkane-phosphonic acid of formula ##STR1## or at least one of the alkali or ammonium salts corresponding to the abovesaid alkane-phosphonic acids, the pH of the bath being from 7 to 9.5, preferably from 7.5 to 9.

摘要翻译： 基本上基于铁，锌或其合金的基底的锌磷化的方法，包括：（1）一个或几个碱性脱脂步骤，（2）一个或多个漂洗步骤，其中有一个或几个漂洗步骤，（3）活化和精炼步骤 ，（4）适当的锌磷化步骤，（5）用水进行一次或几次漂洗步骤，（6）优选钝化最终漂洗步骤，特别是通过六价铬的盐或六价铬和三价铬的混合物，其特征在于 为了进行活化和精炼步骤，除了其中特别是至少一种与约1至100ppm钛的比例相对应的杰恩斯特德盐的常规成分之外，还要进行洗涤，其比例为 10至700ppm，优选50至200ppm的至少一种式（I）的烷烃 - 膦酸或至少一种对应于上述烷烃磷的碱金属盐或铵盐 皂酸，浴的pH为7至9.5，优选7.5至9。