The objective of the present invention is to provide: a vinylidene-fluoride-based copolymer having adhesiveness to metal foils that is superior to that of conventional vinylidene-fluoride-based copolymers; and an application of the vinylidene-fluoride-based copolymer. The vinylidene-fluoride-based copolymer is obtained by the copolymerization of vinylidene fluoride and the compound represented by formula (A). In formula (A): R 1 , R 2 , and R 3 each independently is a hydrogen atom, a chlorine atom, or an alkyl group; and X is a heteroatom or a group of atoms that has a molecular weight of no greater than 500, contains a heteroatom, and has a primary chain configured from 1-20 atoms.

Vinylidene-fluoride-based copolymer and application of said copolymer

A shell, a method of preparing the shell and an electronic product comprising the shell are provided. The shell may comprise: a metal shell body, a plastic part made of a resin, and an oxide layer formed between the metal body and the plastic part, joining the plastic part to the metal shell body, wherein the oxide layer contains corrosion pores having an average diameter of about 200 nm to about 2000 nm in the surface contacting the plastic part, and nanopores having a diameter of about 10 to 100 nm in the surface contacting the metal shell body, and a part of the resin is filled in the corrosion pore and corrosion pore.

Shell, method of preparing the shell and electronic product comprising the shell

A memory cell is fabricated by forming a first capacitor electrode including silicon. A metal layer is formed in physical contact with the first capacitor electrode. The metal layer is formed from a material having a high affinity for oxygen and a melting point above about 1000° C. A layer of high K dielectric material is formed in physical contact with the metal layer. The high K dielectric material has a dielectric constant greater than about 5. A conductive layer is formed over the high K dielectric material layer. An interface between the high K dielectric layer and the metal layer/silicon body is modified by performing an annealing step. A transistor is also formed to be electrically coupled to one of the conductive layer or the first capacitor electrode.

DRAM with high K dielectric storage capacitor and method of making the same

The invention relates to a process for preparing polyolefin antibacterial permeability membrane, which consists of mixing 10-30 contents of nanocalcium carbonate and 10-65 contents of heavy calcium carbonate first, adding 0.1-10 contents of unsaturated acid monomer, 0.1-20 contents of long fatty chain monomer, 0.001-5 contents of initiating agent, 0.1-10 contents of polyethersulphonate and 0.1-20 contents of macromolecular coupling agent and 5-80 contents of polyolefin resin, first preparing predisperse masterbatch of mixed calcium carbonate in the twin-screw extruder, afterwards, mixing 20-80 contents of predisperse masterbatch of mixed calcium carbonate, 0.1-5 contents of hole leveler, 0.1-0.5 contents of anti-oxidant, 2-20 contents of compound antibacterial mother particle and 20-70 contents of polyolefin resin in high-speed mixer, squeezing the prill by twin-screw extruder, drying and vacuum-packing, obtaining the special material of antibacterial permeability membrane. The invention is characterized in that the interactive condition between the polyolefin and calcium carbonate is strong, the filling material is readily dispersed in the polymeric matrix, the special material of permeability membrane can not only form film using doctor-blading process, but also can form film using blowing process, the pore diameter of the said permeability membrane is uniform, and its antibacterial behavior is excellent.

Materials dedicated for antibacterial and permeable polyolefin film and preparation method thereof

The present invention provides sintered composite polymeric materials and methods of making and using the same. The sintered composite polymeric materials are made by sintering composite particles comprising a polytetrafluoroethylene component and a carbonaceous component, wherein the carbonaceous component is dispersed throughout the polytetrafluoroethylene component.

Composite PTFE Materials and Applications Thereof

The present invention provides a fluoropolymer capable of giving fluorine-containing molded materials and laminates excellent in moldability, productivity, interlaminar bonding and stress cracking resistance, in particular stress cracking resistance upon contacting with various liquid chemicals, without impairing such characteristics intrinsic in fluororesins as chemical resistance, solvent resistance, weathering resistance, antifouling properties, liquid chemical impermeability and nonstickiness. The present invention provides a fluoropolymer which is an oligomer-containing or oligomer-free fluoropolymer, wherein said oligomer has a molecular weight not higher than 10,000 and amounts to not more than 0.05% by mass relative to the fluoropolymer.

Fluoropolymer and composition thereof

Disclosed is a method for producing a purified fluorine-containing polymer which is applicable to high-pressure polymerization using a large-sized polymerization vessel. This method enables to produce a purified fluorine-containing polymer which enables to obtain a pellet or molded article free from appearance defects such as coloration or foaming. Specifically disclosed is a method for producing a purified fluorine-containing polymer, which is characterized by oxidizing a fluorine-containing polymer obtained by a suspension polymerization performed in the presence of a suspension stabilizer.

Method for producing purified fluorine-containing polymer

The present invention provides a laminated article having improved adhesion of the fluorine-containing resin layer to the elastomer layer. The laminated article comprises a fluorine-containing resin layer (a) formed using a fluorine-containing resin having a carbonyl group, an olefin group or an amino group at an end of a polymer trunk chain or an end of a polymer side chain, and an elastomer layer (b) formed using an elastomer composition.

Multilayer body composed of fluororesin layer and elastomer layer

Laminated article comprising fluorine-containing resin layer and elastomer layer

Disclosed is a method for producing a tetrafluoroethylene/hexafluoropropylene copolymer (FEP), which enables to reduce production cost, while improving production efficiency. Also disclosed is a method for producing an FEP which enables to produce an FEP having excellent electrical characteristics by fluorinating an unstable group of an FEP. Specifically disclosed is a method for producing a tetrafluoroethylene/hexafluoropropylene copolymer, which is characterized by comprising a step (1) wherein tetrafluoroethylene and hexafluoropropylene are polymerized in an aqueous medium in the presence of diisopropylperoxydicarbonate, and a step (2) wherein the tetrafluoroethylene/hexafluoropropylene copolymer obtained in the step (1) is fluorinated.

Tomohiro Kino

Papers

Fluoropolymer and composition thereof

Method for producing purified fluorine-containing polymer

Multilayer body composed of fluororesin layer and elastomer layer

Laminated article comprising fluorine-containing resin layer and elastomer layer

Method for producing tetrafluoroethylene/hexafluoropropylene copolymer