A sliding agent includes: a graft polymer obtained by copolymerizing an organic solvent-soluble fluoropolymer having radical polymerizability, a one-terminal radical-polymerizable polysiloxane, and a non-reactive radical-polymerizable methacrylate-based monomer; a one-terminal reactive silicone oil; a hardener; and an organic solvent, and the sliding agent can improve transparency of coating film formed from the sliding agent and durability that can withstand a long-term use, while excellent sliding property of the coating film is maintained.

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.

A modified surface with at least one cationic center and at least one compound. The surface can be modified by various methods. The result of these methods is that the cationic center and the compound are connected to the modified surface. The cationic center and the compound are connected to the modified surface so that both of the cationic center and the compound are available upon the modified surface to react with other chemicals or microorganisms that come into contact with or near to the modified surface. The availability of the cationic center and the compound cause the modified surface to have a functionality that it would not otherwise have. The number of molecules of the cationic center relative to the number of molecules of the at least one compound may influence the functionality of the modified surface.

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.m1Q.sup.1-[C(O)N(R.sup.1)].sub.p1R.sup.11C[R.sup.12SiR.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.m1Q.sup.1-[C(O)N(R.sup.1)].sub.p1R.sup.11C[R.sup.12SiR.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.

With a view to simultaneously achieving reduction in sputter adhesion to an electronic article and improvement in durability required for maintenance of a film, the electronic article (10) has a film (3) which is formed on the surface of an underlayer member (1) and which is composed of a calcined and cured product of a film solution of a binder resin comprising a fluorine-based resin and a ceramic filler, wherein the fluorine-based resin is distributed increasingly more in the film (3) toward the surface on the side opposite to the underlayer member (1).

With a view to simultaneously achieving reduction in sputter adhesion to an electronic article and improvement in durability required for maintenance of a film, the electronic article (10) has a film (3) which is formed on the surface of an underlayer member (1) and which is composed of a calcined and cured product of a film solution of a binder resin comprising a fluorine-based resin and a ceramic filler, wherein the fluorine-based resin is distributed increasingly more in the film (3) toward the surface on the side opposite to the underlayer member (1).

Provided is a coating film that is less likely to be deteriorated even after exposure to hydrogen peroxide. The coating film is for use in an environment including exposure to hydrogen peroxide and includes a fluorine atom and a urethane bond.

A polyamideimide resin composition containing a polyamideimide resin (A), 4-morpholine carbaldehyde (B), water (C), and a basic compound (D), wherein the change in viscosity of the composition from before storage to after storage at 60 C. for 7 days is within 30%.