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公开(公告)号：US20140228513A1
公开(公告)日：2014-08-14
申请号：US14346093
申请日：2012-09-18
Applicant: RHODIA OPERATIONS
Inventor： Stephane Jeol , Vincent Mollet , Benjamin Paci
CPC classification number: C08G73/1028 , C08G73/10 , C08G73/1007 , C08G73/101 , C08G73/1075 , C08G73/1082 , C08K3/00 , C08K7/06 , C08L79/08 , Y10T428/2982
Abstract: The present invention relates to thermoplastic polyimides and to the synthesis thereof. The invention relates in particular to a method for manufacturing semi-aromatic thermoplastic polyimides by means of the solid-state polymerization of a solid ammonium carboxylate salt formed from an aliphatic diamine and an aromatic tetracarboxylic acid, thereby enabling powders having controlled particle sizes to be produced.
Abstract translation: 本发明涉及热塑性聚酰亚胺及其合成。 本发明特别涉及通过由脂族二胺和芳族四羧酸形成的固体羧酸铵盐的固态聚合制备半芳族热塑性聚酰亚胺的方法，从而使得能够生产具有受控粒度的粉末 。
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公开(公告)号：US10745520B2
公开(公告)日：2020-08-18
申请号：US15535884
申请日：2015-12-17
Applicant: RHODIA OPERATIONS , INSTITUT NATIONAL DES SCIENCES APPLIQUES DE LYON , CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE , UNIVERSITE CLAUDE BERNARD LYON 1 , UNIVERSITE JEAN MONNET SAINT-ETIENNE
Inventor： Stéphane Jeol , René Rossin , Vincent Mollet , Benjamin Paci , Françoise Fenouillot-Rimlinger , Alain Rousseau
IPC: C08G73/10
Abstract: The invention relates to a process for producing aromatic polyimides, comprising the following steps: (a) preparation of one or more solid salt(s) by reacting one or more aromatic tetracarboxylic acid(s) and one or more diamine(s) according to a mole ratio ranging from 0.95 to 1.05; (b) drying of the solid salt(s), (c) addition, to the dry salt resulting from step (b), of one or more compound(s) (C) comprising one or more group(s) chosen from a carboxylic acid group, an anhydride group, an ester group and an acyl chloride group; (d) solid-state polymerization of said solid salt(s) in the presence of the compound(s) (C).
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公开(公告)号：US09902809B2
公开(公告)日：2018-02-27
申请号：US14346093
申请日：2012-09-18
Applicant: RHODIA OPERATIONS
Inventor： Stephane Jeol , Vincent Mollet , Benjamin Paci
CPC classification number: C08G73/1028 , C08G73/10 , C08G73/1007 , C08G73/101 , C08G73/1075 , C08G73/1082 , C08K3/00 , C08K7/06 , C08L79/08 , Y10T428/2982
Abstract: The present invention relates to thermoplastic polyimides and to the synthesis thereof. The invention relates in particular to a method for manufacturing semi-aromatic thermoplastic polyimides by means of the solid-state polymerization of a solid ammonium carboxylate salt formed from an aliphatic diamine and an aromatic tetracarboxylic acid, thereby enabling powders having controlled particle sizes to be produced.
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