发明授权
- 专利标题： Method for preparing urea grease having low noise properties
- 专利标题（中）： 制备低噪音性能的尿素油脂的方法
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申请号： US514293申请日： 2000-02-28
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公开(公告)号： US6136762A公开(公告)日： 2000-10-24
- 发明人: Terasu Yoshinari , Yuji Onuki , Yoichi Suzuki , Hiroshi Kimura
- 申请人： Terasu Yoshinari , Yuji Onuki , Yoichi Suzuki , Hiroshi Kimura
- 申请人地址： JPX Tokyo
- 专利权人： Kyodo Yushi Co., Ltd.
- 当前专利权人： Kyodo Yushi Co., Ltd.
- 当前专利权人地址： JPX Tokyo
- 优先权： JPX11-055730 19990303
- 主分类号： C10M121/04
- IPC分类号： C10M121/04 ; C07C273/18 ; C07C275/40 ; C08G18/28 ; C10M115/08 ; C10M119/24 ; C10M177/00 ; C10N40/02 ; C10N50/10 ; C10N70/00
摘要：
A method for preparing urea grease excellent in low noise properties comprises the step of adding a base oil in which an amine (or an isocyanate) is dissolved or dispersed, to a base oil in which an isocyanate (or an amine) is dissolved or dispersed, in the form of liquid drops having a diameter of not more than 300 .mu.m to react the isocyanate with the amine; or the step of directly contacting liquid drops comprising a base oil in which an isocyanate is dissolved or dispersed and having a diameter of not more than 300 .mu.m with liquid drops comprising a base oil in which an amine is dissolved or dispersed and having a diameter of not more than 300 .mu.m to react the isocyanate with the amine. The method permits the production of urea grease excellent in low noise properties at a low cost.
公开/授权文献
- US5623723A Hard composite and method of making the same 公开/授权日：1997-04-22
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