Invention Grant
US09045591B2 Method for producing nylon salt powder, and method for producing nylon
有权
尼龙盐粉的制造方法以及尼龙的制造方法
- Patent Title: Method for producing nylon salt powder, and method for producing nylon
- Patent Title (中): 尼龙盐粉的制造方法以及尼龙的制造方法
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Application No.: US13822749Application Date: 2011-11-17
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Publication No.: US09045591B2Publication Date: 2015-06-02
- Inventor: Makoto Nakai , Mariko Morimoto , Mitsuhiro Kawahara
- Applicant: Makoto Nakai , Mariko Morimoto , Mitsuhiro Kawahara
- Applicant Address: JP Hyogo
- Assignee: UNITIKA LTD.
- Current Assignee: UNITIKA LTD.
- Current Assignee Address: JP Hyogo
- Agency: Fildes & Outland, P.C.
- Priority: JP2010-263031 20101126
- International Application: PCT/JP2011/076474 WO 20111117
- International Announcement: WO2012/070457 WO 20120531
- Main IPC: C08G69/26
- IPC: C08G69/26 ; C08G69/28 ; C07C51/41 ; C08G69/30
Abstract:
Disclosed is a method for producing a nylon salt powder, wherein in the production of a nylon salt powder by allowing a dicarboxylic acid powder to react, the content of water is regulated to be 5% by mass or less in relation to the total amount of the dicarboxylic acid powder and a diamine, the dicarboxylic acid powder is beforehand heated to a temperature equal to or higher than melting point of the diamine and equal to or lower than the melting point of the dicarboxylic acid, and while this heating temperature is being maintained, the diamine is added to the dicarboxylic acid powder in such a way that the dicarboxylic acid powder maintains the condition of being in powder form.
Public/Granted literature
- US20130172521A1 METHOD FOR PRODUCING NYLON SALT POWDER, AND METHOD FOR PRODUCING NYLON Public/Granted day:2013-07-04
Information query
