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公开(公告)号：US11859022B2
公开(公告)日：2024-01-02
申请号：US16663830
申请日：2019-10-25
发明人： Rong Guan , Michael D. Gagnon , Nikita Iltchenko , Yefim Brun , Laurie A. Howe
CPC分类号： C08B37/0009 , C12N9/1048 , C12P19/04 , C12P19/18
摘要： Compositions are disclosed herein comprising a graft copolymer that comprises: (i) a backbone comprising an alpha-1,3-glucan ether or ester compound, and (ii) one or more alpha-1,3-glucan side chains comprising at least about 50% alpha-1,3 glycosidic linkages. Further disclosed are reactions for producing such graft copolymers, as well as their use in various applications.
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公开(公告)号：US11098334B2
公开(公告)日：2021-08-24
申请号：US16218518
申请日：2018-12-13
发明人： Rong Guan , James Joshua Ohane , Nikita Iltchenko , Yefim Brun , Brian McCauley , Laurie A. Howe , Yougen Li
摘要： Compositions are disclosed herein comprising a graft copolymer that comprises: (i) a backbone comprising dextran that has been modified with about 1%-25% alpha-1,2 branches, and (ii) one or more alpha-1,3-glucan side chains comprising at least about 50% alpha-1,3 glycosidic linkages. Further disclosed are reactions for producing such graft copolymers, as well as their use in derivatives, films and various other applications.
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公开(公告)号：US11932890B2
公开(公告)日：2024-03-19
申请号：US17406386
申请日：2021-08-19
发明人： Rong Guan , James Joshua Ohane , Nikita Iltchenko , Yefim Brun , Brian McCauley , Laurie A. Howe , Yougen Li
CPC分类号： C12P19/08 , C08B37/0009 , C08B37/0021 , C08J5/18 , C08L5/02 , C11D3/3707 , C12P19/18 , C08J2305/00 , C08J2305/02
摘要： Compositions are disclosed herein comprising a graft copolymer that comprises: (i) a backbone comprising dextran that has been modified with about 1%-25% alpha-1,2 branches, and (ii) one or more alpha-1,3-glucan side chains comprising at least about 50% alpha-1,3 glycosidic linkages. Further disclosed are reactions for producing such graft copolymers, as well as their use in derivatives, films and various other applications.
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公开(公告)号：US11473116B2
公开(公告)日：2022-10-18
申请号：US17073439
申请日：2020-10-19
发明人： Zheyong Yu , Slavko Kralj , Zhenghong Zhang , Laurie A. Howe
摘要： Reaction compositions are disclosed herein comprising at least water, beta-glucose -1-phosphate (beta-G1P), an acceptor molecule, and an alpha-1,3-glucan phosphorylase enzyme. These reactions can synthesize oligosaccharides and polysaccharides with alpha-1,3 glycosidic linkages. Further disclosed are alpha-1,3-glucan phosphorylase enzymes and methods of use thereof.
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