HYDROGEL COMPOSITIONS BONDED TO POLYMERIC SUBSTRATES

    公开(公告)号:WO2018183098A1

    公开(公告)日:2018-10-04

    申请号:PCT/US2018/023914

    申请日:2018-03-23

    Abstract: Described herein is a hydrogel-containing multilayer article and methods of making, said hydrogel-containing multilayer article comprising: (i) a polymeric substrate comprising an abstractable atom; and (ii) a cured aqueous coating composition thereon wherein the coating composition comprises: (a) a hydrophilic monomer comprising a (meth)acrylamide, (meth)acrylate, and combinations thereof: (b) at least 2 wt% of a water-swellable clay; (c) a water-soluble type I photoinitiator; and (d) an acid or salt wherein a water insoluble type II photoinitiator is localized at the interface between the hydrogel coating and the polymeric substrate.

    HYDROGEL COMPOSITIONS BONDED TO POLYMERIC SUBSTRATES
    6.
    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

    Abstract: 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.

    Abstract translation: 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。

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