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    Hydrophilic macromers and hydrogels comprising the same
    72.
    发明授权
    Hydrophilic macromers and hydrogels comprising the same 有权

    公开(公告)号：US10101499B2

    公开(公告)日：2018-10-16

    申请号：US14492722

    申请日：2014-09-22

    申请人： Anubhav Saxena ,  Monjit Phukan ,  Shreedhar Bhat ,  Kenrick M. Lewis ,  Senthilkumar Umapathy

    发明人： Anubhav Saxena ,  Monjit Phukan ,  Shreedhar Bhat ,  Kenrick M. Lewis ,  Senthilkumar Umapathy

    IPC分类号： C08G77/20 ,  G02B1/04 ,  C08G77/46 ,  C08L83/04 ,  C08L83/08

    摘要： A composition, suitable for use in producing hydrogel polymer films from which biomedical devices such as contact lenses can be made, comprising at least one hydrophilic silicone macromer. In one aspect, a hydrophilic silicone macromer is of the Formula 1: X—Si(R1)(R2)O—(Si(R3)(R4)O)a—Si(R5)(R6)—Y  (1) wherein R1, R2, R3 R4, R5 and R6 are independently selected from a monovalent linear, branched, or cyclic radical with 1 to 50 carbon atoms, that can optionally contain a heteroatom or I; I is RL—RP; Y is a free radical polymerization-effective hydrophilic group with the general structure: RL—RP—Z; RL is a linking residue from a non-isomerizable hydrosilylation effective terminal olefin comprising the general structure —CH2—C(RbR7)—(CR8R9)n, the subscript n is selected from integers from 1 to 10; R7, R8, and R9 can be selected from hydrogen and a mono-valent hydrocarbon radical with 1 to 10 carbon atoms that optionally contain a heteroatom; Rb is selected from a monovalent hydrocarbon radical with 1 to 6 carbon atoms; RP is a spacer group comprising a diavelant hydrophilic organic radical with 0 to 100 carbon atoms and optionally contains heteroatoms, and X is a free radical polymerizable group. The said composition can be polymers and films suitable for use in making contact lenses.