公开(公告)号：US20160145390A1

公开(公告)日：2016-05-26

申请号：US14896945

申请日：2014-06-11

Applicant: BASF SE

Inventor： Christian Schmidt ,  Joachim Clauss ,  Axel Wilms ,  Volker Rauschenberger ,  Gad Kory ,  Stefan Schwiegk ,  Arnold Schneller ,  Achim Stammer ,  Frank Niedermaier ,  Bernd Hackel

IPC: C08G69/28 ,  C08G69/26

CPC classification number: C08G69/28 ,  C08G69/26 ,  C08G69/265

Abstract: The present invention relates to a process for the preparation of an aliphatic or partially aromatic polyamide, in which an aqueous composition of the monomers is subjected to an oligomerization at elevated temperature and increased pressure, the reaction mixture is optionally subjected to a first decompression to reduce the water content, the (optionally decompressed) reaction mixture is heated within a short time to a temperature above the melting temperature of the polyamides and the heated reaction mixture is subjected to a (further) decompression to reduce the water content and to an after-polymerization.

Abstract translation: 本发明涉及一种制备脂族或部分芳族聚酰胺的方法，其中单体的水性组合物在升高的温度下进行低聚和增加的压力，反应混合物任选经历第一减压以减少 将水含量，（任选减压）的反应混合物在短时间内加热到高于聚酰胺的熔融温度的温度，加热的反应混合物经受（进一步）减压以降低含水量， 聚合。

公开(公告)号：US09994678B2

公开(公告)日：2018-06-12

申请号：US14896945

申请日：2014-06-11

Applicant: BASF SE

Inventor： Christian Schmidt ,  Joachim Clauss ,  Axel Wilms ,  Volker Rauschenberger ,  Gad Kory ,  Stefan Schwiegk ,  Arnold Schneller ,  Achim Stammer ,  Frank Niedermaier ,  Bernd Hackel

IPC: C08G69/28 ,  C08G69/26

CPC classification number: C08G69/28 ,  C08G69/26 ,  C08G69/265

Abstract: The present invention relates to a process for the preparation of an aliphatic or partially aromatic polyamide, in which an aqueous composition of the monomers is subjected to an oligomerization at elevated temperature and increased pressure, the reaction mixture is optionally subjected to a first decompression to reduce the water content, the (optionally decompressed) reaction mixture is heated within a short time to a temperature above the melting temperature of the polyamides and the heated reaction mixture is subjected to a (further) decompression to reduce the water content and to an after-polymerization.