HYDROPHILIC SUBSTRATE AND METHOD FOR PREPARING HYDROPHILIC SUBSTRATE

    公开(公告)号:EP3915957A1

    公开(公告)日:2021-12-01

    申请号:EP21160217.2

    申请日:2021-03-02

    摘要: Provided are hydrophilic substrates provided with a hydrophilic polymer layer having controlled surface uniformity and irregularities, and methods for preparing the hydrophilic substrates. Included are hydrophilic substrates including a substrate having a surface containing at least one group represented by -N(R 1 ) 2 or - N(R 2 ) 3 + wherein each R 1 or R 2 is the same or different and represents a hydrogen atom or a substituted or unsubstituted hydrocarbon group optionally containing a hetero atom; and a hydrophilic polymer layer provided on the surface of the substrate.

    ANTIGLARE TOUCH SCREEN DISPLAYS AND OTHER COATED ARTICLES AND METHODS OF FORMING THEM

    公开(公告)号:EP3822236A1

    公开(公告)日:2021-05-19

    申请号:EP21150173.9

    申请日:2015-11-25

    发明人: LU, Songwei

    摘要: Touch screen displays and other coated articles demonstrating antiglare properties are provided. A method of forming an antiglare coating on a substrate is also provided, and may be used to prepare the coated articles. The method comprises: (a) heating the substrate to a temperature of at least 100 °F (37.8 °C) to form a heated substrate; (b) applying a curable film-forming composition on at least one surface of the heated substrate to form a substrate coated with a sol-gel layer; and (c) subjecting the coated substrate to thermal conditions for a time sufficient to effect cure of the sol-gel layer. The curable film-forming composition comprises:
    (i) a silane;
    (ii) a mineral acid; and
    (iii) a solvent;
    wherein the weight ratio of mineral acid to silane is greater than 0.008:1 and the curable film-forming composition has a solids content of less than 10 percent by weight.