COMPOSITION FOR FORMING HYDROPHIC FIRM, SPRAY COMPOSITION AND HYDROPHILIC MEMBER USING THE SAME

• US 20100159256A1
• Filed: 08/15/2008
• Published: 06/24/2010
• Est. Priority Date: 08/17/2007
• Status: Abandoned Application

• Current Assignee: Fujifilm Corporation (Fujifilm Holdings Corporation)
• Original Assignee: Fujifilm Corporation (Fujifilm Holdings Corporation)
• Inventors: Tanaka, Satoshi, Murayama, Yuichiro, Yamasaki, Sumiaki, Kondo, Yoshiaki
• Application Number:
  US12/733,183
• Publication Number:
  US 20100159256A1
• Time in Patent Office: Days
• US Class Current: 428/447
• CPC Class Codes: C08K 5/0091 Complexes with metal-heteroatom-bonds
• CPC Class Codes: C08K 5/057 Metal alcoholates metal enolates C08K5/0091
• CPC Class Codes: C08L 101/10 containing hydrolysable silane groups
• CPC Class Codes: C09D 143/04 Homopolymers or copolymers of monomers containing silicon
• CPC Class Codes: C09D 183/04 Polysiloxanes
• CPC Class Codes: C09D 5/1637 Macromolecular compounds
• CPC Class Codes: C09D 5/1662 Synthetic film-forming substance
• CPC Class Codes: C09D 5/1675 Polyorganosiloxane-containing compositions
• CPC Class Codes: Y10T 428/31663 As siloxane, silicone or silane

Abstract

A composition for forming a hydrophilic film, comprising (A) a hydrophilic polymer having a silane coupling group at the terminal or on the side chain of the polymer, the polymer having a specific structure, and (B) a metal complex catalyst; a spray composition; and a hydrophilic member provided with the composition by spray coating. A composition for the formation of a hydrophilic film, ensuring that a hydrophilic coating excellent in durability, antifouling property, water resistance and the like can be easily formed while keeping hydrophilicity and the coating workability is excellent, and a hydrophilic member using the composition are provided.

Claims

1. A composition for forming a hydrophilic film, comprising following components (A) and (B):

(A) a hydrophilic polymer having a silane coupling group at a terminal or on a side chain of the polymer; and

(B) a metal complex catalyst.

2. A spray composition, which is the composition for forming a hydrophilic film according to claim 1.

3. The composition according to claim 1, wherein the composition for forming a hydrophilic film further comprises:

(C) at least one of an alkoxide compound containing an element selected from Si, Ti, Zr and Al and a partial hydrolysis condensate thereof.

4. The composition according to claim 3,

wherein a viscosity of the (C) at least one of an alkoxide compound containing an element selected from Si, Ti, Zr and Al and a partial hydrolysis condensate thereof is 2 mPa·

s or more at 20°

C.

5. The composition according to claim 1,

wherein (A) the hydrophilic polymer having a silane coupling group at the terminal or on the side chain of the polymer is at least one of

(A-1) a hydrophilic polymer having a structural unit represented by following formula (ii) and having a partial structure represented by following formula (i) at a terminal of the polymer chain;

and

(A-2) a hydrophilic polymer having a structural unit represented by following formula (iii) and a structural unit represented by following formula (iv);

Hydrophilic Polymer (A-1);

6. The composition according to claim 1,

wherein (B) the metal complex catalyst is composed of a metal element selected from Groups 2A, 3B, 4A and 5A of the Periodic Table and an oxo or hydroxyoxygen compound selected from a β

-diketone, a ketoester, a hydroxycarboxylic acid or an ester thereof, an aminoalcohol and an enolic active hydrogen compound.

7. The composition according to claim 1, further comprising:

(D) a colloidal silica.

8. A hydrophilic member in which the composition according to claim 1 is applied to a substrate by a spray coating.

9. The composition according to claim 5,

wherein the composition for forming a hydrophilic film comprises the hydrophilic polymer (A-1) and the hydrophilic polymer (A-2), and

a mass ratio (hydrophilic polymer (A-1)/hydrophilic polymer (A-2)) between the hydrophilic polymer (A-1) and the hydrophilic polymer (A-2) is from 50/50 to 5/95.

10. A hydrophilic member in which the composition according to claim 9 is applied by a spray coating.

11. A fin material coated with the composition according to claim 1.

12. An aluminum-made fin material, wherein the fin material according to claim 11 is made of aluminum.

13. A heat exchanger using the aluminum-made fin material according to claim 12.

14. An air conditioner using the heat exchanger according to claim 13.