Aldehydes RFCH2CHO (R(F) is a linear perfluoroalkyl chain) have been obtained in the addition reaction of R(F)I to vinyl acetate in the presence of zinc. RFCH2CHIOAc is formed as an intermediate in the course of the reaction. Under appropriate conditions, RFCH2CHO and its acylal or acetal derivatives are obtained in good yields.
COATING COMPOSITION AND PRODUCTION METHOD FOR SAME, AND FORMATION METHOD FOR COATING FILM USING SAME
申请人:Asahi Glass Company, Limited
公开号:EP2559742A1
公开(公告)日:2013-02-20
To provide a coating composition containing a fluorinated copolymer having repeating units derived from ethylene and tetrafluoroethylene, which can be formed into a coating film by coating and which can be produced at a relatively low temperature, and a process for its production, and a process for forming a coating film of the fluorinated copolymer by using this composition, which can be carried out at a relatively low temperature. A coating composition comprising microparticles of a fluorinated copolymer (ETFE) having repeating units derived from ethylene and repeating units derived from tetrafluoroethylene, and a solvent capable of dissolving ETFE at a temperature of not higher than the melting point of ETFE, wherein the microparticles of ETFE are microparticles precipitated from a solution having ETFE dissolved in the solvent, and are dispersed in the solvent.
To provide a charge retention medium having a surface potential at a practical level, although it is obtained from a composition containing a fluorinated copolymer having repeating units based on tetrafluoroethylene and repeating units based on ethylene.
A charge retention medium (electret 30) which is obtained from a composition containing a fluorinated copolymer (A) having repeating units based on tetrafluoroethylene and repeating units based on ethylene; and at least one charge aid (B) selected from the group consisting of a compound having at least one amino group and at least one reactive functional group (excluding an amino group) and a compound having at least two amino groups and having no reactive functional group (excluding an amino group).
To provide a process for producing a charge retention medium, with which a coating film (precursor of a charge retention medium) containing a fluorinated copolymer having repeating units based on tetrafluoroethylene and repeating units based on ethylene can easily be formed on the surface of a substrate, even in a case where the surface of the substrate has a complicated shape.
A process for producing a charge retention medium (electret 30), which comprises a step of applying a coating composition containing a fluorinated copolymer (A) having repeating units based on tetrafluoroethylene and repeating units based on ethylene, and an organic solvent (C), to a substrate (first substrate 10) to form a coating film.
COATING COMPOSITION AND PROCESS FOR ITS PRODUCTION, AND PROCESS FOR FORMING COATING FILM BY USING THE COMPOSITION
申请人:NAKANO Takashi
公开号:US20130017334A1
公开(公告)日:2013-01-17
To provide a coating composition containing a fluorinated copolymer having repeating units derived from ethylene and tetrafluoroethylene, which can be formed into a coating film by coating and which can be produced at a relatively low temperature, and a process for its production, and a process for forming a coating film of the fluorinated copolymer by using this composition, which can be carried out at a relatively low temperature. A coating composition comprising microparticles of a fluorinated copolymer (ETFE) having repeating units derived from ethylene and repeating units derived from tetrafluoroethylene, and a solvent capable of dissolving ETFE at a temperature of not higher than the melting point of ETFE, wherein the microparticles of ETFE are microparticles precipitated from a solution having ETFE dissolved in the solvent, and are dispersed in the solvent.
METHOD FOR PRODUCING FLUORINATED COPOLYMER COMPOSITION, COATING COMPOSITION, ARTICLE HAVING COATING FILM, AND MOLDED PRODUCT
申请人:Nakano Takashi
公开号:US20130053493A1
公开(公告)日:2013-02-28
This invention relates to a method for producing a fluorinated copolymer composition, capable of uniformly mixing a fluorinated copolymer (A) having repeating units derived from ethylene and repeating units derived from tetrafluoroethylene, and a thermoplastic resin (B), at a relatively low temperature. The invention also relates to a method for producing a fluorinated copolymer composition comprising a fluorinated copolymer (A), a thermoplastic resin (B) which excludes the fluorinated copolymer (A), and a medium (C) capable of dissolving at least the fluorinated copolymer (A). The invention also relates to a coating composition capable of forming a coating film provided with characteristics of the fluorinated copolymer (A) and the thermoplastic resin (B), an article having such a coating film, and a molded product.