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公开(公告)号：US11525014B2
公开(公告)日：2022-12-13
申请号：US17056468
申请日：2019-06-12
申请人： NATIONAL UNIVERSITY CORPORATION HOKKAIDO UNIVERSITY , NIPPON PAPER INDUSTRIES CO., LTD. , DAICEL CORPORATION
发明人： Yasumitsu Uraki , Haruo Konno , Shu Shimamoto
摘要： An object of the present invention is to provide cellulose acetate that has excellent compatibility with a resin, can reinforce a resin, and has excellent thermal stability. An embodiment of the present invention is cellulose acetate having a cellulose triacetate I crystal structure, wherein a temperature at which a weight loss relative to weight at 100° C. reaches 5% is 200° C. or higher when the cellulose acetate is heated at a heating rate of 10° C./min under a nitrogen atmosphere.
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公开(公告)号：US11220763B2
公开(公告)日：2022-01-11
申请号：US16083699
申请日：2017-03-09
申请人： NATIONAL UNIVERSITY CORPORATION HOKKAIDO UNIVERSITY , NIPPON PAPER INDUSTRIES CO., LTD. , DAICEL CORPORATION
发明人： Yasumitsu Uraki , Haruo Konno , Shu Shimamoto
摘要： Disclosed herein is cellulose acetate fibers that have an excellent affinity for resins and is capable of reinforcing resins. The cellulose acetate fibers have a cellulose triacetate I crystal structure and a number-average fiber diameter of 2 nm or more but 400 nm or less.
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公开(公告)号：US11802166B2
公开(公告)日：2023-10-31
申请号：US17434230
申请日：2020-02-26
发明人： Yasumitsu Uraki , Haruo Konno , Shu Shimamoto
摘要： An object of the present disclosure is to provide a cellulose acetate film having excellent bending properties and high transparency. The subject cellulose acetate film contains cellulose acetate having a cellulose triacetate I crystal structure, the cellulose acetate film having a light transmittance of 70% or higher at 660 nm.
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