Hydrophilic members

A hydrophilic and component technology, applied in the direction of synthetic resin layered products, transportation and packaging, coating, etc., can solve the problems of insufficient flexibility and achieve excellent wear resistance, excellent antifouling, and excellent fast drying Effect

Inactive Publication Date: 2010-12-29
FUJIFILM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] However, the hydrophilic material of the conventional technology has a defect that it is not flexible enough when forming a film on a substrate like a film

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0347] [Hydrophilic Sol-Gel Solution]

[0348] 11.3 g (A) of the specific hydrophilic polymer (I-1) was mixed with 100 g of purified water, and stirred at room temperature for 2 hours to prepare a hydrophilic sol-gel solution.

[0349] [Hydrophilic composition]

[0350] The above-mentioned hydrophilic sol-gel solution was mixed with 2.3 g of a 5% by weight aqueous solution (G) of the following anionic surfactant (1) and 115 g of purified water to prepare a hydrophilic composition.

[0351] [Sol-Gel Solution for Undercoat Formation]

[0352] The tetramethoxysilane (C) of 4.0g and the methyltrimethoxysilane of 4.0g are mixed with 14.2g ethanol and 50g pure water, stir 2h at room temperature, thereby prepare the sol-gel solution that is used to form primer .

[0353] [Composition for forming undercoat layer]

[0354] The above sol-gel solution for forming the undercoat layer was mixed with 2.8 g of a 5% by weight aqueous solution of the following anionic surfactant (1), 240 g...

Embodiment 2

[0360] A hydrophilic member was prepared in the same manner as in Example 1, except that 0.05 g of a 1N aqueous hydrogen chloride solution was added as a catalyst (E) to the hydrophilic sol-gel solution to prepare a hydrophilic member.

Embodiment 3

[0362] The same method as in Example 1 was used to prepare the hydrophilic member, except that 0.1 g of acetylacetone and 0.1 g of tetraethyl orthotitanate were added as catalyst (E) to the hydrophilic sol-gel solution to Preparation of hydrophilic elements.

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Abstract

Hydrophilic members comprising various substrates and surface layers formed on the surfaces thereof, wherein the layers are soft and excellent in stainproofness, quick-drying properties against water and so on, and wear resistance. A hydrophilic member characterized by having, on the substrate, both a top coat formed from (A) a hydrophilic polymer bearing a specific structure and (B) a hydrophilic composition which contains at least one hydrophilic polymer bearing a specific structure and an under coat formed from an undercoating composition which comprises (C) an alkoxide represented by general formula (III): M(OR14)4 (wherein M is an element selected from among Si, Ti, and Zr) and (D) an alkoxysilane represented by general formula (IV): Si(OR15)aR16 4-a (wherein R14 to R16 are each independently hydrogen or a hydrocarbon group; and a is 2 or 3).

Description

technical field [0001] The present invention relates to hydrophilic elements including any kind of substrate whose surface has excellent antifouling properties, excellent abrasion resistance and sufficient flexibility. Background technique [0002] In order to suppress the adhesion of oily stains to the surface of members, various techniques have been proposed. In particular, during people's use, optical components, such as anti-reflection films, optical filters, optical lenses, lenses of glasses and mirrors, will adhere to stains, such as fingerprints, fatty substances, sweat and cosmetics, thereby not only reducing Its function is not guaranteed, and the removal of stains is also very complicated. Therefore, it is desirable to apply an effective antifouling treatment. [0003] In recent years, with the development of mobile phones, mobile phone displays are often used outdoors. When the mobile phone is used in an environment where the external light is incident light, t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F18/22C08F28/02C09D5/00B32B27/30C09D143/04B05D5/00C09D7/12C09D183/04C08F220/54C09D143/02
CPCC08F220/58C08F230/08C08F220/56C08F226/10C09D143/04C09D5/1675C08L2205/02Y10T428/31663C08F230/085C08L2666/04
Inventor 田中智史近藤義顕
Owner FUJIFILM CORP
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