公开(公告)号：US20220025178A1

公开(公告)日：2022-01-27

申请号：US17311042

申请日：2019-12-06

Applicant: BASF SE

Inventor： Adair Rangel de Oliveira, Jr. ,  Fabiana Zanelato Kuwajima ,  Antonio Cesar Da Silva ,  Carolina Teixeira

IPC: C08L77/06 ,  C08K7/14 ,  C08K3/16 ,  C08G69/26

Abstract: Described herein is a polyamide composition including: (a) at least one first semi-crystalline polyamide including repeating units derived from two or more diacids, and one or more diamine(s), (b) at least one second semi-crystalline polyamide including repeating units derived from two or more diacids and one or more diamine(s), (c) at least one glass fibre, and (d) optionally at least one further additive, wherein the at least one first semi-crystalline polyamide and the at least one second semi-crystalline polyamide are different from each other and defined by their molar ratio of repeating units derived from aromatic dicarboxylic acids and aliphatic dicarboxylic acids. As described herein, the polyamide composition provides a superior combination of high thermal stability (i.e. heat distortion temperature) and high flowability (i.e. low melt viscosity).

公开(公告)号：US11965093B2

公开(公告)日：2024-04-23

申请号：US17311042

申请日：2019-12-06

Applicant: BASF SE

Inventor： Adair Rangel de Oliveira, Jr. ,  Fabiana Zanelato Kuwajima ,  Antonio Cesar Da Silva ,  Carolina Teixeira

IPC: C08L77/06 ,  C08G69/26 ,  C08K3/16 ,  C08K7/14

CPC classification number: C08L77/06 ,  C08G69/26 ,  C08K3/16 ,  C08K7/14 ,  C08L2201/08 ,  C08L2203/30 ,  C08L2205/025

Abstract: Described herein is a polyamide composition including:



(a) at least one first semi-crystalline polyamide including repeating units derived from two or more diacids, and one or more diamine(s),
(b) at least one second semi-crystalline polyamide including repeating units derived from two or more diacids and one or more diamine(s),
(c) at least one glass fibre, and
(d) optionally at least one further additive,
wherein the at least one first semi-crystalline polyamide and the at least one second semi-crystalline polyamide are different from each other and defined by their molar ratio of repeating units derived from aromatic dicarboxylic acids and aliphatic dicarboxylic acids. As described herein, the polyamide composition provides a superior combination of high thermal stability (i.e. heat distortion temperature) and high flowability (i.e. low melt viscosity).