Temperature stable thermotropic poly(ester carbonate) derived from
t-butylhydroquinone
    1.
    发明授权
    Temperature stable thermotropic poly(ester carbonate) derived from t-butylhydroquinone 失效
    衍生自叔丁基氢醌的温度稳定的热致聚(碳酸酯)

    公开(公告)号:US4398018A

    公开(公告)日:1983-08-09

    申请号:US333228

    申请日:1981-12-21

    IPC分类号: C08G63/64

    CPC分类号: C08G63/64

    摘要: A thermotropic poly(ester carbonate) containing diacyl moieties such as terephthalate and carbonate moieties as well as dihydroxy-derived moieties is useful for forming fibers or films. The dihydroxy-derived moieties are at least 40% derived from t-butylhydroquinone, with hydroquinone and methylhydroquinone being exemplary second components. The polymers can be prepared by melt, solution or interfacial polymerization, are liquid crystalline in the melt and have glass transition temperatures above 100.degree. C.

    摘要翻译: 含有二酰基部分如对苯二甲酸酯和碳酸酯部分的热致聚(酯碳酸酯)以及二羟基衍生的部分可用于形成纤维或膜。 二羟基衍生的部分至少40%来自叔丁基氢醌,其中氢醌和甲基氢醌是示例性的第二组分。 聚合物可以通过熔融,溶液或界面聚合制备,在熔体中为液晶,玻璃化转变温度高于100℃。

    Biomedical devices
    4.
    发明授权
    Biomedical devices 失效
    生物医学装置

    公开(公告)号:US08071661B2

    公开(公告)日:2011-12-06

    申请号:US12329700

    申请日:2008-12-08

    IPC分类号: G02C7/04 G02B1/04 C08F18/20

    摘要: Biomedical devices are provided herein which are formed from a polymerization product of a mixture comprising (a) a copolymer which is the reaction product of one or more polymerizable polyhydric alcohols and one or more polymerizable fluorine-containing monomers; and (b) a biomedical device-forming comonomer.

    摘要翻译: 本文提供了由混合物的聚合产物形成的生物医学装置,所述混合物包含(a)作为一种或多种可聚合多元醇与一种或多种可聚合含氟单体的反应产物的共聚物; 和(b)生物医学装置形成共聚单体。

    Polysiloxanes and polysiloxane prepolymers with vinyl or epoxy functionality
    5.
    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。

    Packaging Solutions
    6.
    发明申请
    Packaging Solutions 审中-公开
    包装解决方案

    公开(公告)号:US20090173045A1

    公开(公告)日:2009-07-09

    申请号:US12248222

    申请日:2008-10-09

    IPC分类号: A45C11/04 B65B55/22

    摘要: Packaging systems for storing ophthalmic devices such as contact lenses and to methods for packaging such ophthalmic devices with solutions to improve the comfort of the lenses during wear are disclosed. A packaging system includes an ophthalmic device stored in an aqueous packaging solution comprising a hydrophilic polymer having one or more non-ethylenically-unsaturated carboxylic acid terminal groups.

    摘要翻译: 公开了用于存储诸如隐形眼镜的眼科装置的包装系统,以及用于包装这些眼科装置的方法以提供穿戴期间镜片的舒适度的解决方案。 包装系统包括存储在包含具有一个或多个非烯键式不饱和羧酸端基的亲水性聚合物的水性包装溶液中的眼科装置。

    Process for Making Biomedical Devices
    7.
    发明申请
    Process for Making Biomedical Devices 审中-公开
    制造生物医学设备的过程

    公开(公告)号:US20090142485A1

    公开(公告)日:2009-06-04

    申请号:US12273192

    申请日:2008-11-18

    IPC分类号: B05D5/06

    摘要: A process for treating a silicone hydrogel biomedical device, especially an ophthalmic lens such as a contact lens, involves: immersing the silicone hydrogel biomedical device with a mixture of an organic solvent and a hydrophilic, polymeric material, for a sufficient time that the device is swollen in volume by at least 30%; and removing the organic solvent from the device while retaining at least a portion of the hydrophilic polymeric material therein.

    摘要翻译: 用于处理硅酮水凝胶生物医学装置,特别是诸如隐形眼镜的眼用透镜的方法包括:将硅酮水凝胶生物医学装置与有机溶剂和亲水性聚合物材料的混合物浸渍足够的时间,使该装置为 体积膨胀至少30%; 并从装置中除去有机溶剂,同时将至少一部分亲水性聚合物材料保持在其中。