A method for producing a carboxy group-containing hydrogenated nitrile rubber includes a step of preparing a latex of a carboxy group-containing nitrile rubber by polymerizing a monomer mixture in a dispersive medium, the monomer mixture containing at least an α,β-ethylenically unsaturated nitrile monomer and a carboxy group-containing monomer; a step of heating the latex of the carboxy group-containing nitrile rubber at 50 to 85° C. in the state where the pH is adjusted in the range of 8.5 to 12; and a step of subjecting the latex of the carboxy group-containing nitrile rubber after the heating to a hydrogenation reaction in the presence of a hydrogenation catalyst in the state where the pH is adjusted in the range of 5 to 8.

The invention relates to an one pack ambient cure crosslinkable modified vinyl branched ester polymer with vinyl silane and a water scavanger. The copolymer composition can be formulated to the desired viscosity that allows the application by standard technics, and the curing is optimized in the presence of an appropriated catalyst as one pack system to be cure at room temperature.

The invention relates to an one pack ambient cure crosslinkable modified vinyl branched ester polymer with vinyl silane and a water scavanger. The copolymer composition can be formulated to the desired viscosity that allows the application by standard technics, and the curing is optimized in the presence of an appropriated catalyst as one pack system to be cure at room temperature.

The invention relates to an one pack ambient cure crosslinkable modified vinyl branched ester polymer with vinyl silane and a water scavanger. The copolymer composition can be formulated to the desired viscosity that allows the application by standard technics, and the curing is optimized in the presence of an appropriated catalyst as one pack system to be cure at room temperature.

The present invention relates to copolymers, to a method for the preparation of these copolymers, to the use of these copolymers for reducing wear in a lubricant composition, to lubricant compositions comprising these copolymers, and to the use of these lubricant compositions as an automatic transmission fluid, a continuously variable transmission fluid, an engine oil, a gear oil, or a hydraulic oil.

The present invention relates to copolymers, to a method for the preparation of these copolymers, to the use of these copolymers for reducing wear in a lubricant composition, to lubricant compositions comprising these copolymers, and to the use of these lubricant compositions as an automatic transmission fluid, a continuously variable transmission fluid, an engine oil, a gear oil, or a hydraulic oil.

A fluorine-containing polymer for a metal-clad laminated sheet, containing: a polymerized unit based on a fluorine-containing vinyl monomer; and a polymerized unit based on a vinyl ester monomer other than the fluorine-containing vinyl monomer. The fluorine-containing polymer contains not more than 1 mol % in total of a polymerized unit based on a monomer containing a hydroxy group and a polymerized unit based on a monomer containing a carboxy group, of all polymerized units. Also disclosed is a composition containing the fluorine-containing polymer, a curable composition containing the fluorine-containing polymer and an epoxy resin, a metal-clad laminated sheet including a metal foil and a resin layer provided on the metal foil and being formed of the curable composition, and a printed substrate including a patterned circuit formed by etching the metal foil of the metal-clad laminated sheet.

A fluorine-containing polymer for a metal-clad laminated sheet, containing: a polymerized unit based on a fluorine-containing vinyl monomer; and a polymerized unit based on a vinyl ester monomer other than the fluorine-containing vinyl monomer. The fluorine-containing polymer contains not more than 1 mol % in total of a polymerized unit based on a monomer containing a hydroxy group and a polymerized unit based on a monomer containing a carboxy group, of all polymerized units. Also disclosed is a composition containing the fluorine-containing polymer, a curable composition containing the fluorine-containing polymer and an epoxy resin, a metal-clad laminated sheet including a metal foil and a resin layer provided on the metal foil and being formed of the curable composition, and a printed substrate including a patterned circuit formed by etching the metal foil of the metal-clad laminated sheet.

A water/oil repellent composition which can provide an article with high and durable water repellency is provided. A water/oil repellent composition comprising units based on a fluoroolefin represented by the formula (1): CH.sub.2═CH—R.sup.f (wherein R.sup.f is a C.sub.1-8 perfluoroalkyl group), units based on a vinyl carboxylate (b1) having a C.sub.12 or higher alkyl group and units based on a vinyl carboxylate (b2) having a C.sub.1-6 alkyl group, wherein the ratio of units based on the fluoroolefin is from 20 to 35 mol %, the ratio of units based on the vinyl carboxylate (b1) is from 30 to 70 mol %, and the ratio of units based on the vinyl carboxylate (b2) is from 5 to 50 mol %, relative to all the units in the fluorinated polymer.

A water/oil repellent composition which can provide an article with high and durable water repellency is provided. A water/oil repellent composition comprising units based on a fluoroolefin represented by the formula (1): CH.sub.2═CH—R.sup.f (wherein R.sup.f is a C.sub.1-8 perfluoroalkyl group), units based on a vinyl carboxylate (b1) having a C.sub.12 or higher alkyl group and units based on a vinyl carboxylate (b2) having a C.sub.1-6 alkyl group, wherein the ratio of units based on the fluoroolefin is from 20 to 35 mol %, the ratio of units based on the vinyl carboxylate (b1) is from 30 to 70 mol %, and the ratio of units based on the vinyl carboxylate (b2) is from 5 to 50 mol %, relative to all the units in the fluorinated polymer.