公开(公告)号：US09475934B2

公开(公告)日：2016-10-25

申请号：US14419414

申请日：2013-07-11

Applicant: KANEKA CORPORATION ,  RIKEN

Inventor： Hideki Abe ,  Noriyuki Suzuki ,  Tetsuya Minami ,  Nobuo Nakamura

IPC: C08L67/04 ,  C08K5/053 ,  C08G63/06 ,  C08G63/08

CPC classification number: C08L67/04 ,  C08G63/06 ,  C08G63/08 ,  C08K5/053

Abstract: An object is to increase crystallization speed, which is a drawback of polyhydroxyalkanoate, to improve processability in processing such as injection molding or blow molding and increase the speed of processing and is, in addition, to refine the crystal of polyhydroxyalkanoate to suppress a change of mechanical properties with passage of time of a resulting molded article. Disclosed herein is a polyester resin composition containing polyhydroxyalkanoate and pentaerythritol.

Abstract translation: 目的是提高结晶速度，这是聚羟基链烷酸酯的缺点，以提高加工中的加工性能，例如注射成型或吹塑成型，并提高加工速度，此外，为了改善聚羟基链烷酸酯的结晶以抑制 机械性能随着所得模塑制品的时间流逝。 本文公开了含有聚羟基链烷酸酯和季戊四醇的聚酯树脂组合物。

公开(公告)号：US20150210801A1

公开(公告)日：2015-07-30

申请号：US14419414

申请日：2013-07-11

Applicant: KANEKA CORPORATION ,  RIKEN

Inventor： Hideki Abe ,  Noriyuki Suzuki ,  Tetsuya Minami ,  Nobuo Nakamura

IPC: C08G63/06

CPC classification number: C08L67/04 ,  C08G63/06 ,  C08G63/08 ,  C08K5/053

Abstract: An object is to increase crystallization speed, which is a drawback of polyhydroxyalkanoate, to improve processability in processing such as injection molding or blow molding and increase the speed of processing and is, in addition, to refine the crystal of polyhydroxyalkanoate to suppress a change of mechanical properties with passage of time of a resulting molded article. Disclosed herein is a polyester resin composition containing polyhydroxyalkanoate and pentaerythritol.

Abstract translation: 目的是提高结晶速度，这是聚羟基链烷酸酯的缺点，以提高加工中的加工性能，例如注射成型或吹塑成型，并提高加工速度，此外，为了改善聚羟基链烷酸酯的结晶以抑制 机械性能随着所得模塑制品的时间流逝。 本文公开了含有聚羟基链烷酸酯和季戊四醇的聚酯树脂组合物。

公开(公告)号：US10351667B2

公开(公告)日：2019-07-16

申请号：US15573202

申请日：2016-05-11

Applicant: RIKEN

Inventor： Koichiro Tachibana ,  Hideki Abe

IPC: C08G63/06 ,  C08G63/86 ,  C08G63/85

Abstract: Provided is a method for producing a non-colored polyester with a high molecular weight. The method is to produce a polyester represented by a general formula (2). This method comprises: a first step of heating, under the presence of an antimony catalyst, a compound represented by the general formula (1) at a heating temperature in a range of from a melting point of the compound to a temperature that is 10° C. higher than the melting point; and a second step of heating a solid product or viscous product obtained after the first step at a heating temperature in a range of from the melting point of the compound represented by the general formula (1) to 270° C.