An object of the present disclosure is to provide a method for producing a fluorine-containing polymer and a composition containing the fluorine-containing polymer.

The present disclosure provides a composition comprising (A) a fluorine-containing polymer comprising as a main component a structural unit containing a fluorine-containing aliphatic ring, and (B) an aprotic solvent, wherein the fluorine-containing aliphatic ring of the fluorine-containing polymer (A) contains one, two, or three etheric oxygen atoms as a ring-constituting atom; when the fluorine-containing aliphatic ring contains a plurality of etheric oxygen atoms, the etheric oxygen atoms are not adjacent to each other; and the fluorine-containing polymer (A) is present in an amount of 20 mass % or more based on the mass of the composition.

The present disclosure provides a water-resistant nanofilm, a preparation method and an article thereof, in which fluorocarbon gas is used as a plasma source and is formed on a substrate surface of substrate by a plasma enhanced chemical vapor deposition method, so that the water-resistance performance of the substrate surface is improved.

The present disclosure provides a water-resistant nanofilm, a preparation method and an article thereof, in which fluorocarbon gas is used as a plasma source and is formed on a substrate surface of substrate by a plasma enhanced chemical vapor deposition method, so that the water-resistance performance of the substrate surface is improved.

A water- and oil-repellent composition including a copolymer having a repeating unit derived from a hydrophobic monomer having an ethylenically unsaturated double bond and a hydrocarbon group having from 3 to 40 carbon atoms, and a repeating unit that is derived from a cyclic vinylidene monomer, which is a compound represented by formula (wherein X represents an aliphatic group having from 1 to 10 carbon atoms; and Z represents at least one atom or group that is selected from a hydrogen atom, a hydrocarbon group having from 1 to 6 carbon atoms, and halogen atoms). Also disclosed is method for producing the water- and oil-repellent composition; as well as a textile product to which the copolymer in the water- and oil-repellent composition is attached.

A water- and oil-repellent composition including a copolymer having a repeating unit derived from a hydrophobic monomer having an ethylenically unsaturated double bond and a hydrocarbon group having from 3 to 40 carbon atoms, and a repeating unit that is derived from a cyclic vinylidene monomer, which is a compound represented by formula (wherein X represents an aliphatic group having from 1 to 10 carbon atoms; and Z represents at least one atom or group that is selected from a hydrogen atom, a hydrocarbon group having from 1 to 6 carbon atoms, and halogen atoms). Also disclosed is method for producing the water- and oil-repellent composition; as well as a textile product to which the copolymer in the water- and oil-repellent composition is attached.

A novel copolymer suitable for an optical film which is excellent in optical characteristics and has high retardation even in a thin film state, and an optical film containing the same are provided. A copolymer excellent in optical characteristics and easy to form a composite with a different polymer, and an optical film composed of the same are also provided.

A novel copolymer suitable for an optical film which is excellent in optical characteristics and has high retardation even in a thin film state, and an optical film containing the same are provided. A copolymer excellent in optical characteristics and easy to form a composite with a different polymer, and an optical film composed of the same are also provided.

A composite coating material for passive vibration damping is provided. The composite coating material includes a polymer matrix, and a piezoelectric ceramic filler and an electrically conductive filler dispersed in the polymer matrix. Particles of the piezoelectric ceramic filler have an average particle size of greater than about 100 microns (μm).

A composite coating material for passive vibration damping is provided. The composite coating material includes a polymer matrix, and a piezoelectric ceramic filler and an electrically conductive filler dispersed in the polymer matrix. Particles of the piezoelectric ceramic filler have an average particle size of greater than about 100 microns (μm).

The present invention pertains to a multilayer assembly, to a process for the manufacture of said multilayer assembly, to a pipe comprising said multilayer assembly and to uses of said pipe in various applications.