公开(公告)号：US11440973B2

公开(公告)日：2022-09-13

申请号：US16480515

申请日：2018-01-17

Applicant: DAICEL CORPORATION

Inventor： Yuya Ashida ,  Ikuhiro Suzuki ,  Akihiro Higuchi

IPC: C08B3/06 ,  C08J5/18

Abstract: The purpose of the present invention is to provide cellulose acetate with which it is possible to obtain a molded article containing cellulose acetate having a small amount of lumps. The cellulose acetate has an acetylation degree of 52% or more and 59% or less, and an acetone-insoluble substance content of 0.04 wt % or less.

公开(公告)号：US11773239B2

公开(公告)日：2023-10-03

申请号：US16480618

申请日：2018-01-17

Applicant: DAICEL CORPORATION

Inventor： Ikuhiro Suzuki ,  Yuya Ashida ,  Akihiro Higuchi

IPC: C08L1/12 ,  C08B3/06

CPC classification number: C08L1/12 ,  C08B3/06

Abstract: The purpose of the present invention is to provide a cellulose acetate excellent in transparency, and a molded article of the cellulose acetate.
In the cellulose acetate, an acetylation degree is 52% or more and 59% or less, and a content of low-molecular-weight components having a molecular weight of not more than ¼ of a peak top molecular weight in a molecular weight distribution measured by gel permeation chromatography of cellulose acetate is 12% or less.