公开(公告)号：US06896752B1

公开(公告)日：2005-05-24

申请号：US09914436

申请日：2000-02-23

申请人： Lutz Hoppe ,  Martin Lohrie ,  Lutz Riechardt ,  Holger Tanneberger

发明人： Lutz Hoppe ,  Martin Lohrie ,  Lutz Riechardt ,  Holger Tanneberger

IPC分类号： C08B5/04 ,  C08J3/12 ,  C09D101/18 ,  C06B21/00

CPC分类号： C08B5/04 ,  C08J3/12 ,  C08J2301/18 ,  C09D101/18

摘要： A process for producing compacted free-flowing nitrocellulose based lacquer raw materials is described. The process involves pressing a nitrocellulose based lacquer feed material, which is moistened with alcohol or water, through the holes of a die. The pressing step may be performed by means of at least one circulating breaker. The process optionally comprises shearing off the compacted lacquer raw material into pieces of selected length, below the die. The compacted nitrocellulose based lacquer raw materials prepared by the process of the present invention are free flowing and have a moisture content of at least 25%.

摘要翻译： 描述了一种生产压制的自由流动硝酸纤维素基漆原料的方法。 该方法包括通过模具的孔压制用醇或水润湿的硝基纤维素基漆进料。 压制步骤可以通过至少一个循环断路器来执行。 该方法任选地包括将压实的漆原料在模具下方剪切成选定长度的片段。 通过本发明的方法制备的压实的硝酸纤维素基漆原料是自由流动的，并且水分含量至少为25％。

公开(公告)号：US5360902A

公开(公告)日：1994-11-01

申请号：US990867

申请日：1992-12-15

申请人： Oke Brauer ,  Bernd Haase ,  Dieter Herzog ,  Lutz Riechardt ,  Gerd Sonnenberg ,  Dietrich Tegtmeier

发明人： Oke Brauer ,  Bernd Haase ,  Dieter Herzog ,  Lutz Riechardt ,  Gerd Sonnenberg ,  Dietrich Tegtmeier

IPC分类号： C08B11/193 ,  C08B11/20 ,  C08B11/22 ,  C02F1/44 ,  C08B11/08

CPC分类号： C08B11/20 ,  C08B11/193 ,  C08B11/22

摘要： The present invention relates to a process for producing methyl hydroxyalkyl cellulose ethers by alkalisation and etherification of celluloses, rinsing the methyl hydroxyalkyl cellulose ethers with water at higher temperatures and recovering the short-chain cellulose ethers that are soluble in the wash water, wherein the wash water containing sodium chloride and organic by-products is passed across a first stage of a membrane filtration having a molecular cut size of 200 to 150,000 Dalton, is concentrated during this process and passes across a second stage of a membrane filtration.

摘要翻译： 本发明涉及一种通过纤维素碱化和醚化生产甲基羟烷基纤维素醚的方法，用较高温度的水冲洗甲基羟烷基纤维素醚并回收可溶于洗涤水的短链纤维素醚，其中洗涤 含有氯化钠和有机副产物的水通过分子切割尺寸为200至150,000道尔顿的膜过滤的第一阶段，在该过程中浓缩并通过膜过滤的第二阶段。