公开(公告)号：US20170210031A1

公开(公告)日：2017-07-27

申请号：US15329793

申请日：2015-07-23

申请人： Mitsubishi Gas Chemical Company, Inc.

发明人： Tatsuya TOCHIHARA ,  Katsumi SHINOHARA ,  Kaname SATO ,  Tomonori KATO ,  Jun MITADERA

IPC分类号： B29B9/10 ,  B29C45/00 ,  C08G69/26 ,  B29B7/42 ,  C08G69/30 ,  B29B9/06 ,  B29C45/47

摘要： The polyamide pellet of the present invention includes a polyamide including diamine units and dicarboxylic acid units, 50% by mole or more of the diamine units being derived from m-xylylenediamine, wherein a spherulite density of a skin portion of the pellet is 40,000 to 250,000/mm2.

公开(公告)号：US20210102065A1

公开(公告)日：2021-04-08

申请号：US16635445

申请日：2018-06-29

申请人： Mitsubishi Gas Chemical Company, Inc.

发明人： Kosuke OTSUKA ,  Kaname SATO ,  Takafumi ODA

IPC分类号： C08L77/06 ,  B32B27/08 ,  B32B27/34 ,  B32B27/36 ,  B32B27/32 ,  B32B7/12 ,  C08L77/02

摘要： An easily tearable film with excellent linear cuttability, as well as a multilayer film, a packaging material, and a container are provided. The easily tearable film is a polyamide resin film including polyamide resin components including more than 20 parts by mass and 70 parts by mass or less of a semi-aromatic polyamide resin A and less than 80 parts by mass and 30 parts by mass or more of an aliphatic polyamide resin B; wherein the semi-aromatic polyamide resin A is constituted of a diamine-derived constituent unit and a dicarboxylic acid-derived constituent unit; 60 mol % or more of the diamine-derived constituent units are derived from metaxylylenediamine; 60 mol % or more of the dicarboxylic acid-derived constituent units are derived from an α,ω-linear aliphatic dicarboxylic acid having from 4 to 10 carbons; and the polyamide resin film is stretched, the polyamide resin film having an area fraction corresponding to the semi-aromatic polyamide resin A, as observed in secondary electron image observation, of 9.8% or more after plane ion milling of a cross section of the polyamide resin film in the TD direction.