SOL-GEL COATINGS FOR CONTACT LENSES
    7.
    发明申请
    SOL-GEL COATINGS FOR CONTACT LENSES 审中-公开
    用于隐形眼镜的溶胶 - 凝胶涂层

    公开(公告)号:WO2017147292A1

    公开(公告)日:2017-08-31

    申请号:PCT/US2017/019128

    申请日:2017-02-23

    IPC分类号: G02B1/04 G02C7/04

    摘要: A composition for rendering a hydrophobic surface hydrophilic. A hydrophobic binder, typically a silicone compound such as a siloxane, attaches hydrophilic sol-gel particles to the surface, such as hydrophobic regions of a silicone contact lens. Hydrophilic regions are preferably unmodified. The binder attaches to the particles via functional groups, and can autoadhere to the hydrophobic surface. A coating of the composition can be deposited from solution at ambient or room temperature, allowing coating of temperature sensitive substrates. Such coatings can withstand heating (such as for sterilization) in acidic solutions, retaining their hydrophilic properties.

    摘要翻译: 用于赋予疏水性表面亲水性的组合物。 通常为硅氧烷化合物(例如硅氧烷)的疏水性粘合剂将亲水性溶胶 - 凝胶颗粒附着到表面上,例如硅酮隐形眼镜的疏水区域。 亲水区优选未被修饰。 粘合剂通过官能团附着到颗粒上,并可以自动粘附到疏水表面。 组合物的涂层可以在环境温度或室温下从溶液中沉积,从而允许涂覆温度敏感的基材。 这种涂层可以承受酸性溶液中的加热(如灭菌),保持其亲水性。

    COATINGS AND COATED SUBSTRATES WITH IMPROVED BARRIER AND ADHESION CHARACTERISTICS, AND METHODS OF PRODUCING THE SAME
    8.
    发明申请
    COATINGS AND COATED SUBSTRATES WITH IMPROVED BARRIER AND ADHESION CHARACTERISTICS, AND METHODS OF PRODUCING THE SAME 审中-公开
    具有改进的阻挡层和粘合特性的涂层和涂层基材及其生产方法

    公开(公告)号:WO2017127406A1

    公开(公告)日:2017-07-27

    申请号:PCT/US2017/013895

    申请日:2017-01-18

    申请人: MICHELMAN, INC.

    IPC分类号: C09D129/04

    摘要: Embodiments of the present disclosure are directed to primer coatings, polymeric substrates, and methods of producing thereof, which provide enhanced adhesion and enhanced barrier properties. The primer coatings comprise an aqueous mixture of amorphous polyvinyl alcohol, an adhesion promoter comprising one or more of polyethylene and polyurethane, a crosslinker, and optionally, a catalyst. The coated polymeric substrates comprise a polymeric substrate and a coating dispersed over the polymeric substrate, where the coating dispersed over the polymeric substrate comprises amorphous polyvinyl alcohol, an adhesion promoter, and a crosslinker. The methods for making coated polymeric substrates comprise stretching a polymeric substrate, applying a coating of amorphous polyvinyl alcohol, an adhesion promoter, and a crosslinker to at least one surface of the stretched polymeric substrate, and curing the coating onto at least one surface of the stretched polymeric substrate.

    摘要翻译: 本公开的实施方案涉及底漆涂料,聚合物基底及其制备方法,其提供增强的粘合性和增强的阻隔性。 底漆涂料包含无定形聚乙烯醇,包含聚乙烯和聚氨酯中的一种或多种的粘合促进剂,交联剂和任选的催化剂的含水混合物。 涂覆的聚合物基材包含聚合物基材和分散在聚合物基材上的涂层,其中分散在聚合物基材上的涂层包含无定形聚乙烯醇,粘合促进剂和交联剂。 用于制造涂覆的聚合物基材的方法包括拉伸聚合物基材,将无定形聚乙烯醇涂层,粘合促进剂和交联剂涂覆到拉伸的聚合物基材的至少一个表面上,以及将涂层固化到 拉伸聚合物基材。

    HYDROGEL COMPOSITIONS BONDED TO POLYMERIC SUBSTRATES
    10.
    发明申请
    HYDROGEL COMPOSITIONS BONDED TO POLYMERIC SUBSTRATES 审中-公开
    粘合到聚合物基体上的水凝胶组合物

    公开(公告)号:WO2017058698A1

    公开(公告)日:2017-04-06

    申请号:PCT/US2016/053668

    申请日:2016-09-26

    摘要: Described herein is a multilayer article comprising: a. a polymer substrate comprising an abstractable atom; and b. a hydrogel coating thereon wherein the hydrogel coating has a water content of at least 10 wt% and is covalently bonded to the polymer substrate, and wherein the hydrogel coating is derived from an aqueous composition having a pH less than 9.5, the aqueous composition comprising: (a) a hydrophilic monomer selected from at least one of (meth)acrylate or (meth)acrylamide; (b) at least 0.1 wt% of a water-swellable clay; (c) a first initiator, wherein the first initiator is water-soluble and is a Type I photoinitiator; and (d) a second initiator, wherein the initiator is water-soluble and is a Type II photoinitiator; and (e) an acid.

    摘要翻译: 本文描述的是多层制品,其包括:a。 包含可抽出原子的聚合物基材; 和b。 在其上的水凝胶涂层,其中所述水凝胶涂层具有至少10重量%的水含量并且共价键合到所述聚合物基材上,并且其中所述水凝胶涂层来自pH小于9.5的水性组合物,所述水性组合物包含: (a)选自(甲基)丙烯酸酯或(甲基)丙烯酰胺中的至少一种的亲水性单体; (b)至少0.1重量%的水溶胀性粘土; (c)第一引发剂,其中第一引发剂是水溶性的并且是I型光引发剂; 和(d)第二引发剂,其中引发剂是水溶性的并且是II型光引发剂; 和(e)酸。