HYDROPHILIC GELS DERIVED FROM GRAFTED PHOTOINITIATORS
    7.
    发明申请
    HYDROPHILIC GELS DERIVED FROM GRAFTED PHOTOINITIATORS 有权
    从吸收光敏剂衍生的亲水凝胶

    公开(公告)号:US20130096221A1

    公开(公告)日:2013-04-18

    申请号:US13805087

    申请日:2011-06-22

    IPC分类号: C08J3/28

    摘要: The invention provides a method for the manufacture of a gel, said method comprising the steps of: providing a matrix composition comprising a polymeric photoinitiator of the general formula (I): Polymer-[CR2—CHR-Spacer(PI)n]m (I) curing the matrix composition by exposing it to UV radiation and exposing the matrix composition to a swelling medium. The invention also relates to gels obtainable via the above method. The invention provides a hydrophilic gel precursor manufactured from the polymeric photoinitiator of Formula (I). Medical devices comprising the gels and hydrophilic gel precursors of the invention are provided. The invention also provides the use of a polymeric photoinitiator in the manufacture of a gel.

    摘要翻译: 本发明提供一种制造凝胶的方​​法,所述方法包括以下步骤:提供包含通式(I)的聚合物光引发剂的基质组合物:聚合物 - [CR 2 -CHR-间隔物(PI)n] m( I)通过将基质组合物暴露于UV辐射并使基质组合物暴露于溶胀介质来固化基质组合物。 本发明还涉及通过上述方法可获得的凝胶。 本发明提供由式(I)的聚合物光引发剂制备的亲水凝胶前体。 提供包含本发明的凝胶和亲水凝胶前体的医疗装置。 本发明还提供聚合物光引发剂在制造凝胶中的用途。

    HYDROPHILIC GELS FROM POLYALKYLETHER-BASED PHOTOINITIATORS
    8.
    发明申请
    HYDROPHILIC GELS FROM POLYALKYLETHER-BASED PHOTOINITIATORS 有权
    基于聚氯乙烯的光敏剂的亲水凝胶

    公开(公告)号:US20130090406A1

    公开(公告)日:2013-04-11

    申请号:US13805104

    申请日:2011-06-22

    IPC分类号: C08J3/28

    摘要: The invention provides a method for the manufacture of a catheter comprising a hydrophilic gel. The method comprising the steps of combining a polymeric photoinitiator of the general formula (I): R1(A1)r-(R2(A2)m-O)o—(R3(A3)n-O)p—R4(A4)s  (I) with one or more gel-forming polymers and/or gel-forming monomers to form a matrix composition, curing the matrix composition by exposing it to UV radiation, exposing the matrix composition to a swelling medium and incorporating the hydrophilic gel into a catheter. The invention also provides autocuring of the polymeric photoinitiator (I) to provide a gel precursor, a hydrophilic gel and a catheter comprising or coated with the hydrophilic gel of the invention.

    摘要翻译: 本发明提供一种制造包含亲水凝胶的导管的方法。 该方法包括以下步骤:将通式(I)的聚合物光引发剂:R1(A1)r-(R2(A2)mO)o-(R3(A3)nO)p-R4(A4)s(I) 与一种或多种凝胶形成聚合物和/或凝胶形成单体形成基质组合物,通过将基质组合物暴露于紫外线辐射来固化基质组合物,将基质组合物暴露于溶胀介质并将亲水凝胶并入导管中。 本发明还提供聚合物光引发剂(I)的自动固化以提供凝胶前体,亲水凝胶和包含本发明的亲水性凝胶的导管。

    Hydrogel
    10.
    发明授权
    Hydrogel 有权
    水凝胶

    公开(公告)号:US07511083B2

    公开(公告)日:2009-03-31

    申请号:US10529555

    申请日:2003-10-02

    IPC分类号: C08J3/28 C08F2/46

    摘要: A method of preparation of a cross-linked hydrogel by graft copolymerisation, said method comprises the steps of preparing an aqueous solution comprising one or more hydrophilic polymers, a cross-linking agent and a photoinitiator comprising a water-soluble peroxydisulphate, subjecting said solution to irradation and obtaining the cross-linked hydrogel, wherein the hydrophilic polymers are saturated and the cross-linking agent acts as a co-catalyst of cross-linking. The hydrogel is fast to produce and has low toxicity. The hydrogel may be suitable for use in medical devices such as dressings and the like.

    摘要翻译: 一种通过接枝共聚制备交联水凝胶的方法,所述方法包括以下步骤:制备包含一种或多种亲水性聚合物的水溶液,交联剂和包含水溶性过氧化二硫酸盐的光引发剂,将所述溶液 辐照并获得交联的水凝胶,其中亲水性聚合物是饱和的,并且交联剂起交联剂的辅助催化剂的作用。 水凝胶生产快,毒性低。 水凝胶可适用于医疗装置如敷料等。