JP2002361800A5 - - Google Patents

Description

式（Ｉ）中、Ｒ¹、Ｒ²、Ｒ³およびＲ⁴はそれぞれ独立に水素原子又は炭素数１〜８の炭化水素基を表し、ｍは０、１または２を表し、ｎは１〜８の整数を表す。Ｌは単結合又は有機連結基を表し、Ｙは−ＮＨＣＯＲ⁵、−ＣＯＮＨ₂、−ＣＯＮ（Ｒ⁵）₂、−ＣＯＲ⁵、−ＯＨ、−ＣＯ₂Ｍ又は−ＳＯ₃Ｍを表し、ここで、Ｒ⁵は炭素数１〜８のアルキル基を表し、Ｍは水素原子、アルカリ金属、アルカリ土類金属又はオニウムを表す。
【請求項４】 前記親水性塗布液組成物に、さらに、（Ｂ）下記一般式（II）で表される加水分解性化合物を含有することを特徴とする請求項３に記載の表面親水性部材。
【化２】

式（II）中、Ｒ⁶及びＲ⁷はそれぞれ独立にアルキル基又はアリール基を表し、ＸはＳｉ、Ａｌ、Ｔｉ又はＺｒを表し、ｍは０〜２の整数を表す。 [Claims]
    1. A hydrophilic layer having a hydrophilic graft chain on the surface of a substrate and having a crosslinked structure formed by hydrolysis and condensation polymerization of a metal alkoxide selected from Si, Ti, Zr, and Al. A surface hydrophilic member comprising:
    (2) The surface hydrophilic member according to claim 1, wherein the hydrophilic layer having a crosslinked structure is obtained by combining a hydrophilic polymer having a silane coupling group at a terminal with a crosslinking agent..
    3. The hydrophilic layer having a crosslinked structure is formed by preparing and applying (A) a hydrophilic coating solution composition containing a polymer compound represented by the following general formula (I). 2. The method according to claim 1, whereinOr Claim 23. The surface hydrophilic member according to item 2.
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  In the formula (I), R¹, R^Two, R^ThreeAnd R^FourEach independently represents a hydrogen atom or a hydrocarbon group having 1 to 8 carbon atoms, m represents 0, 1 or 2, and n represents an integer of 1 to 8. L represents a single bond or an organic linking group, and Y represents -NHCOR^Five, -CONH_Two, -CON (R^Five)_Two, -COR^Five, -OH, -CO_TwoM or -SO_ThreeM, where R^FiveRepresents an alkyl group having 1 to 8 carbon atoms, and M represents a hydrogen atom, an alkali metal, an alkaline earth metal or onium.
    4. The hydrophilic coating liquid composition further comprises (B) a hydrolyzable compound represented by the following general formula (II).33. The surface hydrophilic member according to item 2.
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  In the formula (II), R⁶And R⁷Each independently represents an alkyl group or an aryl group, X represents Si, Al, Ti or Zr, and m represents an integer of 0 to 2.

[0006]
[Means for Solving the Problems]
In order to achieve the above object, as a result of conducting research with an emphasis on the properties of the hydrophilic graft polymer, the present inventors have found that a hydrophilic polymer and a metal alkoxide are hydrolyzed and a crosslinked structure formed by polycondensation. The above-mentioned object can be achieved by the surface layer provided with, and the surface layer having such a crosslinked structure can be easily obtained by combining a hydrophilic polymer having a silane coupling group at a terminal with a crosslinking agent. And found that the present invention was completed.
That is, the surface hydrophilic member of the present invention has a hydrophilic graft chain on the surface of the substrate, and a cross-link formed by hydrolysis and polycondensation of a metal alkoxide selected from Si, Ti, Zr, and Al. It is characterized by comprising a hydrophilic layer having a structure.
The hydrophilic layer having such a crosslinked structure can be obtained by combining a hydrophilic polymer having a silane coupling group at a terminal with a crosslinking agent, and (A) represented by the following general formula (I). It is a preferred embodiment that the composition is formed by preparing and applying a hydrophilic coating solution composition containing the polymer compound to be prepared, and more preferably, in addition to this, (B) a compound represented by the following general formula (II) An embodiment includes a hydrophilic layer having a crosslinked structure, which is formed by preparing and applying a hydrophilic coating solution composition containing the hydrolyzable compound represented by the formula.