Amphiphilic branched polydiorganosiloxane macromers

    公开(公告)号:US10527757B2

    公开(公告)日:2020-01-07

    申请号:US15792807

    申请日:2017-10-25

    Applicant: Novartis AG

    Abstract: The invention provides a class of amphiphilic branched polydiorganosiloxane macromers and the uses thereof. Such a macromer comprises a polydiorganosiloxane polymer chain and two terminal groups free of any ethylenically unsaturated group, wherein the polydiorganosiloxane polymer chain comprises (1) at least 5 dimethylsiloxane units in a consecutive sequence, (2) at least two first siloxane units each having methyl as one of the two substituents of each first siloxane unit and one first organic radical having one sole (meth)acryloyl group as the other substituent, (3) at least one second siloxane unit having methyl as one of the two substituents of the second siloxane unit and one second organic radical, which is free of any ethylenically unsaturated group and comprises one or more hydrophilic groups or polymer chains, as the other substituent.

Patent Agency Ranking