公开(公告)号：US20210054191A1

公开(公告)日：2021-02-25

申请号：US16500306

申请日：2018-03-29

Applicant: KANEKA CORPORATION

Inventor： Kazuki NISHIYAMA ,  Tomoaki ASHIDA

IPC: C08L67/04

Abstract: Provided are PHA particles which are excellent in dispersibility in an aqueous dispersion and have excellent film formation capability, in which odor of a molded body obtained from the PHA particles or an aqueous dispersion of the PHA particles is suppressed, and whose color tone is good, and an aqueous dispersion of the PHA particles. Polyhydroxyalkanoate particles including polyhydroxyalkanoate having a particle shape and peptidoglycan covering a portion of or an entire surface of the polyhydroxyalkanoate. In this polyhydroxyalkanoate particle, a content of polyhydroxyalkanoate is 98.0% by weight or more, and a content of peptidoglycan is 0.1% by weight or more and 1.0% by weight or less.

公开(公告)号：US20250109290A1

公开(公告)日：2025-04-03

申请号：US18833409

申请日：2023-02-02

Applicant: KANEKA CORPORATION

Inventor： Masaru HIRANO ,  Tomoaki ASHIDA ,  Morio ISHIHARA ,  Hiroaki SUGIYAMA

IPC: C08L67/00 ,  C08G63/00 ,  C08J3/05 ,  C08J3/12

Abstract: An object is to provide (I) a PHA powder which has (i) good redispersibility when the PHA powder is formed into a slurry and (ii) good film forming properties when the PHA powder is applied to slurry coating and (II) a method for producing the PHA powder. The object is attained by providing a PHA powder in which a composition ratio of a 3-hydroxybutyrate unit to a 3-hydroxyhexanoate unit is 80/20 to 91/9 (mol/mol), a moisture content is not more than 20%, and a circularity of a primary particle present at a surface of the PHA powder is not less than 0.92.