Polysiloxanes and polysiloxane prepolymers with vinyl or epoxy functionality
    33.
    发明授权
    Polysiloxanes and polysiloxane prepolymers with vinyl or epoxy functionality 有权
    具有乙烯基或环氧官能团的聚硅氧烷和聚硅氧烷预聚物

    公开(公告)号:US07781554B2

    公开(公告)日:2010-08-24

    申请号:US12042378

    申请日:2008-03-05

    IPC分类号: C08G77/00

    摘要: Polysiloxanes having vinyl or epoxy functionality. The polysiloxanes are used to form polymer-based materials having properties particularly suited for biomedical device applications. The polysiloxanes are of general formula I: wherein R is a C2-10 alkenyl, a C2-10 alkyl with an epoxy group or a C5-C7cycloalkyl with an epoxy group; R2, R3 and R4 are each independently selected from the group consisting of hydrogen, C1-4 alkyl, C1-4 fluoroalkyl, optionally substituted phenyl and optionally substituted benzyl; A is —OH or —NHR5, wherein R5 is hydrogen or a C1-3 alkyl; and B is —R1-A or —R6, wherein R1 is a linking group having an alkylene group with 2 to 8 carbon atoms wherein the alkylene group optionally includes ether, urethane or ureido linkages; and R6 is selected from the group consisting of C1-4 alkyl, optionally substituted phenyl or optionally substituted benzyl; and m and n are integers with an m:n ratio from 30:1 to 3:1.

    摘要翻译: 具有乙烯基或环氧官能团的聚硅氧烷。 聚硅氧烷用于形成具有特别适用于生物医学装置应用的特性的聚合物基材料。 聚硅氧烷具有通式I:其中R是C2-10烯基,具有环氧基的C2-10烷基或具有环氧基的C5-C7环烷基; R 2,R 3和R 4各自独立地选自氢,C 1-4烷基,C 1-4氟烷基,任选取代的苯基和任选取代的苄基; A是-OH或-NHR 5,其中R 5是氢或C 1-3烷基; 并且B是-R1-A或-R6,其中R1是具有2至8个碳原子的亚烷基的连接基团,其中亚烷基任选地包括醚,氨基甲酸酯或脲基键; 并且R 6选自C 1-4烷基,任选取代的苯基或任选取代的苄基; m和n为30:1〜3:1的m:n比的整数。

    Method of testing inert, displaceable diluents used in forming shaped
hydrogel articles
    37.
    发明授权
    Method of testing inert, displaceable diluents used in forming shaped hydrogel articles 失效
    用于形成成形水凝胶制品的惰性可置换稀释剂的测试方法

    公开(公告)号:US5736409A

    公开(公告)日:1998-04-07

    申请号:US645999

    申请日:1996-05-14

    摘要: Method of testing inert displaceable diluents used in forming shaped hydrogel articles such as soft contact lenses prepared by the steps of: (1) molding or casting a polymerization mixture including: (a) a monomer mixture having a major proportion of one or more hydrophilic monomers such as 2-hydroxyethyl methacrylate, and one or more cross-linking monomers; and (b) an inert, displaceable diluent chosen from: (i) ethoxylated alkyl glucoside; (ii) ethoxylated bisphenol A; (iii) polyethylene glycol; (iv) mixture of propoxylated and ethoxylated alkyl glucoside; (v) single phase mixture of ethoxylated or propoxylated alkyl gtucoside and C.sub.2-12 dihydric alcohol; (vi) adduct of .epsilon.-caprolactone and C.sub.2-6 alkanediols and triols;(vii) ethoxylated C.sub.3-6 alkanetriol; and (viii) mixtures of one or more of (i) through (vii), under conditions to polymerize the monomer mixture to produce a shaped gel of a copolymer of the monomers and the diluent; and (2) thereafter replacing the diluent with water.

    摘要翻译: 测试用于形成成形水凝胶制品(例如由以下步骤制备的软性隐形眼镜)的惰性可置换稀释剂的方法:(1)模制或浇铸聚合混合物,其包括:(a)主要比例的一种或多种亲水单体的单体混合物 如甲基丙烯酸2-羟乙酯和一种或多种交联单体; 和(b)惰性的可置换的稀释剂,其选自:(i)乙氧基化烷基葡糖苷; (ii)乙氧基化双酚A; (iii)聚乙二醇; (iv)丙氧基化和乙氧基化烷基葡糖苷的混合物; (v)乙氧基化或丙氧基化烷基葡糖苷和C2-12二元醇的单相混合物; (vi)ε-己内酯和C 2-6烷二醇和三醇的加合物; (vii)乙氧基化C3-6烷醇三醇; 和(viii)(i)至(vii)中的一种或多种的混合物,在使单体混合物聚合以产生单体和稀释剂的共聚物的成形凝胶的条件下; 和(2)此后用水代替稀释剂。