Polymer film, polymeric compound for forming the same, method of manufacturing such polymeric compound, liquid-repellency treatment solution using such polymeric compound, surface-modifying method using such treatment solution and surface-modified article

A polymer film composed of a single polymeric compound comprising first segments containing fluorine atoms and second segments different from the first segments in terms of affinity for solvents, including aggregates of said polymeric compound formed in the inside and/or on the sum-face thereof by physical crosslink between said first segments.

A polymer film composed of a single polymeric compound comprising first Segments containing fluorine atoms and second segments different from the first segments in terms of affinity for solvents, including an aggregate of said polymeric compound formed by physical crosslink between said first segments, said second segments being mutually chemically crosslinked.

A liquid-repellency treatment solution dissolving a polymeric compound having a polymer chain containing fluorine atoms, wherein the solution contains a physical aggregate of the polymer chain.

A liquid-repellency treatment solution containing a single polymeric compound, dissolved in a solvent, comprising first segments containing fluorine atoms and second segments different from the first segments in terms of affinity for the solvent;

• and an aggregate of said polymeric compound formed by physical crosslink between said first segments.

A surface-modified article having liquid repellency, having a polymer film provided on the surface, said polymer film including a polymer chain containing fluorine atoms, and a physical aggregate of the polymer chain in the inside and/or on the surface thereof.

A surface-modified article having liquid repellency, having a polymer film provided on the surface, said polymer film, being composed of a single polymeric compound comprising first segments containing fluorine atom and second segments different from the first segment in terms of affinity for solvents, including an aggregate of said polymeric compound in the inside and/or on the surface thereof by physical crosslink between said first segments.

A surface-modifying method comprising the steps of applying to the surface of an article a liquid-repellency treatment solution dissolving a polymeric compound having a polymer chain containing fluorine atom and a physical aggregate of the polymer chain;

• and drying the solution.

A surface-modifying method comprising the steps of applying to the surface of an article a liquid-repellency treatment solution of a single polymeric compound, dissolved in a solvent, comprising first segments containing fluorine atoms and second segments different from the first segments in terms of affinity for the solvent, an aggregate of said polymeric compound formed by physical crosslink between said first segments;

• and drying the solution.

A method of manufacturing a macro-monomer containing a perfluoroalkyl group having an ethylenically unsaturated group at the terminal thereof, comprising the step of reacting an oligomer containing a perfluoroalkyl group having a carbooxyl group at the terminal thereof with an epoxy compound containing an ethylenically unsaturated group.

A method of manufacturing a graft polymeric compound comprising the step of copolymerizing a macro-monomer containing a perfluoroalkyl group having an ethylenically unsaturated group at the terminal thereof and a monomer containing an aromatic ring having a functional group capable of radical polymerization.

A method of manufacturing a graft polymeric compound comprising the step of copolymerizing a macro-monomer containing a perfluoroalkyl group having an ethylenically unsaturated group at the terminal thereof and a monomer having a functional group capable of radical polymerization.

A method of manufacturing a macro-monomer containing acromatic rings having an ethylenically unsatrurated group at the terminal thereof comprising the step of reacting an oligomer containing an aromatic ring having a carboxyl group at the terminal thereof with an epoxy compound containing an ethylenically unsaturated group.

A method of manufacturing a graft polymeric compound comprising the step of copolymerizing a macro-monomer containing aromatic rings having an ethylenically unsaturated group at the terminal thereof and a monomer containing perfluoroalkyl group having a functional group capable of radical polymerization.

A method of manufacturing a graft polymeric compound comprising the step of copolymerizing a macro-monomer having an ethylenically unsaturated group at the terminal thereof and an aromatic-ring-containing monomer having a functional group capable of radical polymerization and a perfluoroalkyl group.

A method of manufacturing a crosslinked graft polymeric compound comprising the steps of providing a graft copolymer by copolymerizing a macro-monomer having an ethylenically unsaturated group at the terminal thereof and a crosslinkable functional group in the molecule with a monomer containing a perfluoroalkyl group and a functional group capable of radical polymerization;

• and crosslinking the functional group of the graft copolymer originating from the macro-monomer.

An ink-jet recording head comprising an ink discharge orifice plane having a plurality of ink discharge orifices arranged thereon, including first regions having a predetermined affinity for water and second regions having an affinity for water different from that of the first region, said first regions and said second regions existing alternately along the peripheries of the ink-Jet discharge orifices.

An ink-Jet recording head comprising an ink discharge orifice plane having a plurality of ink discharge orifices arranged thereon, having a polymer film provided thereon including polymer chains containing fluorine atoms, and physical aggregates of the polymer chains in the inside and/or on the surface of the polymer film.

An ink-jet recording head comprising an ink discharge orifice plane having a polymer film provided thereon, compoosed of a single polymeric compound having first segments containing fluorine atom and second segments different from the first segments in terms of affinity for solvents, including an aggregate of said polymeric compound in the inside and/or on the surface of the polymer film by physical crosslink between said first segments.

A method of manufacturing a discharge orifice plate to be used for an ink-jet recording head, comprising the steps of:

• (i) forming on one of the surfaces of a plate member a polymer film which includes a polymer chain containing fluorine atoms, and a physical aggregate of the polymer chain in the inside and/or on the surface thereof, and absorbs light with a predetermined wavelength range;
• and (ii) irradiating the plate member resulting from the step (i) with light of the wavelength range to be absorbed by said polymer film to produce a through-hole in said plate member.

A method of manufacturing a discharge orifice plate to be used for an ink-jet recording, comprising the steps of:

• (i) forming on one of the surfaces of a plate member a polymer film which is composed of a single polymeric compound having first segments containing fluorine atoms and second segments different from the first segments in terms of affinity for solvents, includes an aggregate of said polymeric compound in the inside and/or on the surface thereof by physical crosslink between said first segments, and absorbs light with a predetermined wavelength range;
• and (ii) irradiating the plate member resulting from the step (i) with light of the wavelength range to be absorbed by said polymer film to produce a through-hole in said plate member.