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    MICROFIBRILLATED CELLULOSE FOR CONTROLLING VISCOSITY AND GEL TEMPERATURE IN STARCH-BASED ADHESIVES
    2.
    发明申请
    MICROFIBRILLATED CELLULOSE FOR CONTROLLING VISCOSITY AND GEL TEMPERATURE IN STARCH-BASED ADHESIVES 有权

    公开(公告)号：US20210261831A1

    公开(公告)日：2021-08-26

    申请号：US17255874

    申请日：2019-07-05

    申请人： Borregaard AS

    发明人： Synnøve Holtan ,  Katérina Liapis ,  Jan Berg

    IPC分类号： C09J11/08 ,  C09J103/02 ,  C08K3/38 ,  C08K5/00

    摘要： The present invention relates to starch-based adhesive compositions comprising microfibrillated cellulose (“MFC”). In addition to microfibrillated cellulose, these adhesive compositions comprise at least one starch and/or at least one starch derivative. The adhesive compositions have a reduced amount of caustic soda vis-a-vis adhesive compositions that do not comprise MFC as an additive. Borax or boric acid (or any derivative thereof) may be partially or fully replaced with microfibrillated cellulose, wherein MFC (contrary to borax) surprisingly does not significantly affect the gel temperature of the overall adhesive.

    MICROFIBRILLATED CELLULOSE AS A CROSSLINKING AGENT
    6.
    发明申请
    MICROFIBRILLATED CELLULOSE AS A CROSSLINKING AGENT 审中-公开

    公开(公告)号：US20200270428A1

    公开(公告)日：2020-08-27

    申请号：US16637205

    申请日：2018-08-14

    申请人： Borregaard AS

    发明人： Synnøve Holtan ,  Katérina Liapis ,  Tom Stylo ,  Jan Berg

    IPC分类号： C08L1/02 ,  C09J129/04 ,  C09J101/02 ,  C09D101/02 ,  C09D129/04 ,  C08L29/04

    摘要： The present invention relates to a composition for use as an adhesive, paint, coating, resin, (surface) size, composite, gel or hydrogel, said composition comprising microfibrillated cellulose (“MFC”). In addition to microfibrillated cellulose, these compositions comprise at least one solvent, said solvent preferably comprising or consisting of water, and at least one compound that is (a) capable of polymerizing, or has already partly or fully, polymerized, and that (b) has at least two groups available for hydrogen bonding, preferably OH groups, that are capable of crosslinking with at least one functional group of the microfibrillated cellulose. In these compositions, the microfibrillated cellulose primarily functions as a crosslinking agent (while it is by no means excluded that the microfibrillated cellulose additionally has other functionalities, such as acting as viscosity modifier and/or thixotropic additive), integrating the compound that (a) is capable of polymerizing or that has already partly or fully, polymerized, and that (b) has at least two groups available for hydrogen bonding, into a gel-like three-dimensional network.