Invention Grant
- Patent Title: Process for the preparation of a polyamide
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Application No.: US14763642Application Date: 2014-01-30
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Publication No.: US09850348B2Publication Date: 2017-12-26
- Inventor: Eric Grolman , Rudy Rulkens , Konraad Albert Louise Hector Dullaert , Renier Henricus Maria Kierkels , Geert Adelina Rudolf Vanden Poel
- Applicant: DSM IP ASSETS B.V.
- Applicant Address: NL Heerlen
- Assignee: DSM IP ASSETS B.V.
- Current Assignee: DSM IP ASSETS B.V.
- Current Assignee Address: NL Heerlen
- Agency: Nixon & Vanderhye P.C.
- Priority: WOPCT/EP2013/051811 20130130
- International Application: PCT/EP2014/051804 WO 20140130
- International Announcement: WO2014/118278 WO 20140807
- Main IPC: C08G69/30
- IPC: C08G69/30 ; C08G69/32 ; C07C209/68 ; C07C51/41 ; C08G69/26 ; C08L77/06 ; C08L77/10
Abstract:
The invention relates to a process for preparing a semi-aromatic polyamide from diamine and dicarboxylic acid, comprising steps of •(i) dosing a liquid diamine to an agitated powder comprising an aromatic dicarboxylic acid thereby forming a powder comprising a diamine/dicarboxylic acid salt (DD-salt), and •(ii) solid-state polymerizing the DD-salt to obtain the polyamide.
Public/Granted literature
- US20150361216A1 PROCESS FOR THE PREPARATION OF A POLYAMIDE Public/Granted day:2015-12-17
Information query
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