公开(公告)号：US12116466B2

公开(公告)日：2024-10-15

申请号：US17605095

申请日：2020-04-22

Applicant: NIKON-ESSILOR CO., LTD. ,  SUMITOMO CHEMICAL COMPANY, LIMITED

Inventor： Katsuyoshi Takeshita ,  Hideyuki Wakiyasu ,  Tomohiro Ito ,  Tomonori Miyamoto ,  Masayoshi Tokuda

IPC: C08J7/04 ,  B05D1/00 ,  B05D3/10 ,  B05D5/08 ,  C03C17/34 ,  C09D183/04 ,  G02B1/111 ,  G02B1/14 ,  G02B1/18

CPC classification number: C08J7/042 ,  B05D1/60 ,  B05D3/10 ,  B05D5/086 ,  C03C17/3405 ,  C09D183/04 ,  G02B1/111 ,  G02B1/14 ,  G02B1/18 ,  B05D2203/35 ,  B05D2506/10 ,  B05D2518/10 ,  C03C2217/73

Abstract: An object of the present invention is to provide a laminate which has a substrate, an intermediate layer, and a water-repellent layer laminated in this order, and has excellent abrasion resistance. The present invention is a laminate comprising: a substrate (s) having an anti-reflection layer; an intermediate layer (c) placed on the anti-reflection layer side of the substrate; and a water-repellent layer (r), in this order, wherein the intermediate layer (c) is a cured layer of a mixture composition (cc) of an organosilicon compound (C), or a vapor deposition layer of the organosilicon compound (C), the organosilicon compound (C) contains a silicon atom together with an amino group and/or an amine skeleton, the water-repellent layer (r) is a cured layer of a mixture composition (ca) of an organosilicon compound (A) in which a monovalent group having a perfluoropolyether structure is bound to a silicon atom through a linking group or without a linking group located therebetween, and a hydrolyzable group is bound to the silicon atom through a linking group or without a linking group located therebetween, and the laminate satisfies the following requirement (1),



(1) a water sliding angle is not larger than 50° after a abrasion resistance test in which a 200 g load per 1.5 cm×1.5 cm area is applied to a surface on the water-repellent layer (r) side of the laminate and the surface is rubbed 20,000 times.