To provide a curable composition for imprinting whereby a cured product layer for a replica mold, which is excellent in the adhesion to a mold substrate and the release property from a cured product of a transfer object material when used in an imprinting method is formed; a replica mold for imprinting, using the curable composition for imprinting; its production process and a process for producing an article having a fine pattern on its surface by using the replica mold. A curable composition for imprinting, which comprises a fluorinated polymer comprising structural units (a) based on CH.sub.2═C(R.sup.1)C(O)OR.sup.2R.sup.f (R.sup.1: a hydrogen atom, a methyl group or the like, R.sup.2: a bivalent linking group having no fluorine atom and R.sup.f: a C.sub.2-6 fluoroalkyl group or the like) and structural units (b) having a cationic polymerizable reactive group having an oxygen atom, and a photo-acid generator, wherein the proportion of the fluorinated polymer is from 11 to 89 mass % in 100 mass % of the curable composition for imprinting.

An information display system includes a pixelated display including a plurality of pixels, each pixel including a plurality of subpixels, an inter-pixel region defined between two of the subpixels and at least one subpixel zone. Also included is an opti-cally-scattering layer in optical communication with the pixelated display, the optically-scattering layer including: a matrix and phase-separated microdomains, wherein the matrix and the phase separated microdomains have different refractive indices and wherein the phase-separated microdomains are disposed in at least one subpixel zone.

An information display system includes a pixelated display including a plurality of pixels, each pixel including a plurality of subpixels, an inter-pixel region defined between two of the subpixels and at least one subpixel zone. Also included is an opti-cally-scattering layer in optical communication with the pixelated display, the optically-scattering layer including: a matrix and phase-separated microdomains, wherein the matrix and the phase separated microdomains have different refractive indices and wherein the phase-separated microdomains are disposed in at least one subpixel zone.

To provide a fluorinated ether compound, a fluorinated ether composition and a coating liquid that are able to form a surface layer which is excellent in water/oil repellency, abrasion resistance, fingerprint stain removability, lubricity and outer appearance, and an article having such a surface layer. A fluorinated ether compound represented by A.sup.1-O—(R.sup.f1O).sub.m1-Q.sup.1-[C(O)N(R.sup.1)].sub.p1—R.sup.11—C[—R.sup.12—SiR.sup.13.sub.n1X.sup.1.sub.3-n1].sub.3, wherein A.sup.1 is a C.sub.1-20 perfluoroalkyl group; R.sup.f1 is a fluoroalkylene group having no branched structure; m1 is an integer from 2 to 210; Q.sup.1 is a single bond or a fluoroalkylene group having no branched structure; R.sup.1 is a hydrogen atom, etc.; p1 is 0 or 1; R.sup.11 is a single bond, an alkylene group, etc.; R.sup.12 is an alkylene group, etc.; R.sup.13 is a monovalent hydrocarbon group, etc.; X.sup.1 is a hydrolyzable group; and n1 is an integer of from 0 to 2.

To provide a fluorinated ether compound, a fluorinated ether composition and a coating liquid that are able to form a surface layer which is excellent in water/oil repellency, abrasion resistance, fingerprint stain removability, lubricity and outer appearance, and an article having such a surface layer. A fluorinated ether compound represented by A.sup.1-O—(R.sup.f1O).sub.m1-Q.sup.1-[C(O)N(R.sup.1)].sub.p1—R.sup.11—C[—R.sup.12—SiR.sup.13.sub.n1X.sup.1.sub.3-n1].sub.3, wherein A.sup.1 is a C.sub.1-20 perfluoroalkyl group; R.sup.f1 is a fluoroalkylene group having no branched structure; m1 is an integer from 2 to 210; Q.sup.1 is a single bond or a fluoroalkylene group having no branched structure; R.sup.1 is a hydrogen atom, etc.; p1 is 0 or 1; R.sup.11 is a single bond, an alkylene group, etc.; R.sup.12 is an alkylene group, etc.; R.sup.13 is a monovalent hydrocarbon group, etc.; X.sup.1 is a hydrolyzable group; and n1 is an integer of from 0 to 2.

The present invention provides a method for producing a porous base material having a pore with a surface modified, the method being unlikely to limit a material of the porous base material and being suitable for controlling characteristics of the porous base material by introducing a polymer chain into a surface of a pore of the porous base material while inhibiting a change in a structure of the porous base material itself. The production method of the present invention includes: forming a base layer having a polymerization initiating group in such a manner as to cover a surface of a pore of a porous base material; and allowing a monomer group to be in contact with the base layer and thereby polymerizing the monomer group by the polymerization initiating group.

There is provided an ultraviolet curable resin composition for a self-lubricating liner, including: a (meth)acrylate compound having an isocyanuric acid ring; at least one of (meth)acrylate having a phosphoric acid ester group and (meth)acrylate having a silane group: a polythiol compound; and a polytetrafluoroethylene resin as a solid lubricant.

There is provided an ultraviolet curable resin composition for a self-lubricating liner, including: a (meth)acrylate compound having an isocyanuric acid ring; at least one of (meth)acrylate having a phosphoric acid ester group and (meth)acrylate having a silane group: a polythiol compound; and a polytetrafluoroethylene resin as a solid lubricant.

A coating composition which contains a fluorinated polymer having a unit (1) represented by —[CX.sup.1X.sup.2—CY.sup.1(Rf.sup.1—COOM.sup.1)]— and a fluorinated compound represented by CX.sup.3X.sup.4═CY.sup.2(Rf.sup.2—COOM.sup.2), wherein the content of the fluorinated compound is from 0.1 to 8.0 parts by mass per 100 parts by mass of the fluorinated polymer. X.sup.1, X.sup.2, X.sup.3 and X.sup.4 are H, F or Cl, Y.sup.1 and Y.sup.2 are H, F, Cl, a methyl group or a trifluoromethyl group, Rf.sup.1 and Rf.sup.2 are a perfluoroalkylene group which may contain an etheric oxygen atom between carbon-carbon atoms, or an oxyperfluoroalkylene group which may contain an etheric oxygen atom between carbon-carbon atoms, —COOM.sup.1 is —COOH or —COOZ.sup.1, and —COOM.sup.2 is —COOH or —COOZ.sup.2 (wherein Z.sup.1 and Z.sup.2 are an ammonium ion in which the hydrogen atom may be substituted). The coating composition is suitable for forming a thin antireflection coating layer without increasing its refractive index.

A coating composition which contains a fluorinated polymer having a unit (1) represented by —[CX.sup.1X.sup.2—CY.sup.1(Rf.sup.1—COOM.sup.1)]— and a fluorinated compound represented by CX.sup.3X.sup.4═CY.sup.2(Rf.sup.2—COOM.sup.2), wherein the content of the fluorinated compound is from 0.1 to 8.0 parts by mass per 100 parts by mass of the fluorinated polymer. X.sup.1, X.sup.2, X.sup.3 and X.sup.4 are H, F or Cl, Y.sup.1 and Y.sup.2 are H, F, Cl, a methyl group or a trifluoromethyl group, Rf.sup.1 and Rf.sup.2 are a perfluoroalkylene group which may contain an etheric oxygen atom between carbon-carbon atoms, or an oxyperfluoroalkylene group which may contain an etheric oxygen atom between carbon-carbon atoms, —COOM.sup.1 is —COOH or —COOZ.sup.1, and —COOM.sup.2 is —COOH or —COOZ.sup.2 (wherein Z.sup.1 and Z.sup.2 are an ammonium ion in which the hydrogen atom may be substituted). The coating composition is suitable for forming a thin antireflection coating layer without increasing its refractive index.