公开(公告)号：US20180346734A1

公开(公告)日：2018-12-06

申请号：US15761583

申请日：2016-09-23

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Gunther Stollwerck ,  Bernd Kuehneweg ,  Christiane Strerath

IPC: C09D5/00 ,  C09D1/04 ,  C09D7/40 ,  C09D7/65 ,  C03C17/00

CPC classification number: C09D7/70 ,  C03C17/006 ,  C03C2217/42 ,  C03C2217/73 ,  C08K3/36 ,  C08K7/00 ,  C08K7/10 ,  C08K2201/003 ,  C08K2201/011 ,  C08K2201/016 ,  C09D1/02 ,  C09D5/006

Abstract: In one aspect of the present disclosure, there is provided an antireflective coating composition comprising (a) hydrophilic spherical silica nanoparticles; (b) hydrophilic elongated silica nanoparticles, wherein the coating composition exhibits a pH-value in the range of from 7 to 12.5 and the ratio between the hydrophilic spherical silica nanoparticles (a) and the hydrophilic nonspherical silica nanoparticles (b) is in the range of from 10:1 to 1:10. In a further aspect of the present disclosure there is provided a method for coating a substrate, comprising the steps (i) providing a substrate having at least one surface; (ii) providing the antireflective coating composition according to the present disclosure; (iii) coating the substrate on at least one surface; (iv) drying the coating, thereby obtaining a coated substrate, wherein step (iv) is carried out at a temperature in the range of from 5° C. to 300° C.