Title:
低騒音性に優れたウレアグリースの製造方法
Document Type and Number:
Japanese Patent JP4327929
Kind Code:
B2
Abstract:
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.
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Inventors:
Yoshinari Teru
Yuji Onuki
Yoichi Suzuki
Hiroshi Kimura
Yuji Onuki
Yoichi Suzuki
Hiroshi Kimura
Application Number:
JP5573099A
Publication Date:
September 09, 2009
Filing Date:
March 03, 1999
Export Citation:
Assignee:
Kyodo Yushi Co., Ltd.
International Classes:
C10M121/04; C10M177/00; C07C273/18; C08G18/28; C10M115/08; C10M119/24; C07C275/40; C10N30/00; C10N40/02; C10N50/10; C10N70/00
Domestic Patent References:
| JP3190996A | ||||
| JP63162790A | ||||
| JP2004895A | ||||
| JP36022012B1 | ||||
| JP6184577A | ||||
| JP3231993A | ||||
| JP11021580A | ||||
| JP2077494A |
Attorney, Agent or Firm:
Minoru Nakamura
Fumiaki Otsuka
Shishido Kaichi
Hideto Takeuchi
Toshio Imajo
Nobuo Ogawa
Village shrine Atsuo
Fumiaki Otsuka
Shishido Kaichi
Hideto Takeuchi
Toshio Imajo
Nobuo Ogawa
Village shrine Atsuo