Lintec Corporation

National Institute of Advanced Industrial Science and Technology

Maki Hironaga

Yoshitomo Ono

Takashi Sugino

Sou Miyata

Yumiko Amino

Atsushi Hozumi

Chihiro Urata

Yutaka Nanashima

Kazumi Ito

Provided is an antifouling composition including a tetrafunctional silane-based compound (A) having a specified structure, a trifunctional silane-based compound having a specified structure, and at least one metal catalyst (C) selected from the group consisting of a titanium-based catalyst, an aluminum-based catalyst, a tin-based catalyst, and a zinc-based catalyst, the antifouling composition satisfying the following relational expression (1).1.5&#x2264;&#x2264;2+1&#x2003;&#x2003;Expression (1): In the expression, x indicates the carbon number of an alkyl group that is selected for Rin the formula (b) representing the silane-based compound (B) and indicates a number of 4 to 22; and y indicates a blending amount ratio (A)/(B) in a molar ratio of the silane-based compound (A) to the silane-based compound (B).

Anti-fouling composition, and anti-fouling sheet

Provided is an antifouling composition including a polysilazane-based compound (A) and a both terminal carboxy-modified silicone (B), the content of the component (B) being from 0.01 to 10 parts by mass based on 100 parts by mass of the total amount of the component (A), and the antifouling composition serves as a sheet-like antifouling layer-forming material. The antifouling composition is able to form a sheet-like antifouling layer having favorable surface state and curability and also having excellent water repellency such that even when a tilt angle is small, water droplets can be slipped off.

Antifouling composition, antifouling sheet, and method for manufacturing antifouling sheet

Provided is an antifouling sheet having an antifouling layer formed of an antifouling layer-forming composition containing a specific tetrafunctional silane compound (A) and a specific trifunctional silane compound (B) wherein the content of the component (B) is 8 to 90 mol % relative to 100 mol % of the component (A), and the antifouling layer is a layer formed by drying and curing a coating film formed of the antifouling layer-forming composition, in an ammonia atmosphere. Also provided is a method for producing the antifouling sheet. The antifouling sheet is provided with an antifouling layer having good surface state and curability, has a large slip acceleration for water droppings, thereby having excellent water repellency that makes water droplets slip off instantly, and has excellent interlayer adhesiveness.

Antifouling sheet and method for producing same

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Saitama, Japan

Maki Hironaga