公开(公告)号：US20210107044A1

公开(公告)日：2021-04-15

申请号：US16338282

申请日：2017-09-27

Applicant: NITTO DENKO CORPORATION

Inventor： Satoru SUZUKI ,  Tomoya OGAWA ,  Tomonari NAITO ,  Naoki KURATA ,  Satomi YOSHIE ,  Kohei NAGAO

IPC: B08B17/02 ,  C09D5/20 ,  C09D5/16 ,  C09D183/04 ,  C09D153/02 ,  B05D5/00 ,  B05D7/02 ,  B05D7/00 ,  B63B59/04 ,  E02B17/00 ,  E02D29/09

Abstract: A coating film capable of being peeled off in the shape of sheet to facilitate a coating film removal work, and is less likely to peel even after long periods of use on an underwater structure is provided. The coating film comprises an undercoat layer to be bonded to an underwater structure, and an antifouling layer bonded to the undercoat layer, wherein: a 100-gram underwater constant load peeling degree of the coating film is less than 5; a ratio of a tensile breaking strength of the coating film to an adhesive force of the coating film with respect to the underwater structure, as measured after immersing the coating film in pure water at 60° C. for 5 weeks is 1.5 or more; and a 1-mm square cross-cut stretching-caused peeling degree of the antifouling layer with respect to the undercoat layer is 0.05 or less.

公开(公告)号：US20200032109A1

公开(公告)日：2020-01-30

申请号：US16499410

申请日：2018-03-30

Applicant: NITTO DENKO CORPORATION

Inventor： Akie HOSHIKO ,  Satoru SUZUKI ,  Tomonari NAITO ,  Naoki KURATA ,  Yuta TAKENOUCHI ,  Sakura MURAKOSHI ,  Kohei NAGAO

IPC: C09J7/29 ,  C09J11/08 ,  C09J7/38

Abstract: An object of the present invention is to provide a coating film forming composition that can form a coating film stably exhibiting an inhibiting effect on the adhesion of aquatic organisms even in the presence of physical factors, for example, water flow in the water. The present invention relates to a coating film forming composition for forming a coating film, the coating film forming composition containing a silicone resin and a silicone oil, wherein a coating film formed of the coating film forming composition satisfies the following (1) and (2). (1) A water contact angle of the coating film after the elapse of 5 minutes after dropping water on the coating film is 80° or less. (2) A water contact angle of the coating film after the elapse of 5 minutes after bringing the coating film into contact with methanol for 3 hours, followed by dropping water on the coating film is 80° or less.