Korea Research Institute of Chemical Technology

In Jun Park

Jong-Wook Ha

Kwang Won Lee

Soo-Bok Lee

Dong-Kwon Kim

Soo Bok Lee

Kwang-Won Lee

Sang Goo Lee

Kwang-Han Kim

Jeong-Hoon Kim

Bong-Jun Chang

Jaewon Kim

Jeong Hoon Kim

Sang-Yun Lee

Eun Young Park

Jong Wook Ha

Kwang Je Kim

Won-Wook So

Dong Kwon Kim

Eun Kyung Kim

Sang-Man Ahn

Seung-Hak Choi

Mi-Sun Cha

The present invention relates to hexafluoropropylene oxide polymer composition and a process of preparing ofhexafluoropropylene oxide polymer by an anionic polymerization, and in particular the hexafluoropropylene oxide polymer composition comprises an anionic initiator, a polar solvent, hexafluoropropylene and hexafluoropropylene oxide. The hexafluoropropylene oxide polymer is prepared under particular reaction conditions by using the composition, hexafluoropropylene oxide poylymer prepared by using the composition according to a preparation process herein has a weight average molecular weight (Mw) of 1,500-4,000 at &#x2212;10 to 20&#xb0; C.

Hexafluoropropylene oxide polymer compositions and a preparing method of hexafluoropropylene oxide polymer using hexafluoropropylene oligomer

The present invention relates to hexafluoropropylene oxide polymer composition and a process of preparing of hexafluoropropylene oxide polymer by an anionic polymerization, and in particular the hexafluoropropylene oxide polymer composition comprises an anionic initiator, a polar solvent, hexafluoropropylene and hexafluoropropylene oxide. The hexafluoropropylene oxide polymer is prepared under particular reaction conditions by using the composition, hexafluoropropylene oxide polymer prepared by using the composition according to a preparation process herein has a weight average molecular weight (Mw) of 1,500-4,000 at &#x2212;10-20&#xb0; C.

Hexafluoropropylene oxide polymer compositions and a method of preparing hexafluoropropylene oxide polymer using hexafluoropropylene oligomer

Disclosed are a perfluoropolyether-modified silane compound, an antifouling coating composition comprising the same, and a film comprising the same. More particularly, the present invention provides a novel perfluoropolyether-modified silane compound of the formula (1) below, an antifouling coating composition comprising the compound and, when coated on the surface of transparent glass or plastic materials, providing superior antifouling property, scratch resistance and durability while maintaining the transparency of the materials, and a film formed by coating the composition and applicable as antireflection film or optical filter of flat panel displays such as lenses, glass windows, liquid crystal displays (LCD), plasma display panels (PDP), organic electro-luminescence (EL) and filed emission displays (FED): 

Per-fluoro polyether compound, antifouling coating composition and film containing same

A novel polyvinyl alcohol-based polymer membrane is disclosed. The novel polyvinyl alcohol-based polymer membrane of the present invention comprises two different compounds which are crosslinked by irradiating light such as UV or electronic beams or heat treatment to form a covalent bond between double bonds thereby providing improved properties such as chemical resistance and durability. This invention also relates to a process its preparation.

Crosslinked polyvinyl alcohol-based polymer membrane and a process of its preparation

The present invention relates to a method for preparing hexafluoropropylene oxide with high yield, and particularly to a method for preparing hexafluoropropylene oxide comprising the step of performing a two-phase interfacial reaction between an organic phase containing hexafluoropropylene and an aqueous phase containing a hypochlorite oxidant in the presence of a phase-transfer catalyst and a non-ionic surfactant to improve the degree of emulsification and dispersion of the organic phase and to increase the contact interfacial area, thereby increasing the efficiency and the yield of the reaction.

Manufacturing method of hexafluoropropylene oxide with high yield

The present invention relates to a fluorine-containing amphoteric polymer for surface coating and preparation method thereof, in particular, to a fluorine-containing amphoteric polymer for surface coating and preparation method thereof in which a hydrocarbon compound with hydrophilic groups serves as a main chain and a macromonomer prepared by copolymerization of an unsaturated hydrocarbon compound and a perfluoro alkyl compound is incorporated into side chains, thereby imparting amphoteric property on the present polymer. Therefore, the present polymer allows self-emulsification and shows soil release, water-repellent and oil-repellent properties with no help of emulsifier, applicable to a variety of industrial fields such as coating, adhesive, fiber, precision chemistry, biological/biochemical industry, electric/electronic, automobile and metal industries.

Fluorine-containing amphoteric polymer for surface coating and preparation method thereof

The present invention relates to preparation of fluorinated core-shell particles with water and oil repellency, and more particularly, to preparation of emulsion-type coating material with good water and oil repellency using only small amount of expensive fluorinated monomers, which comprise a shell wherein a large amount of hydrophobic fluorinated monomers are included and a core wherein no fluorinated monomers are included.

Preparation of fluorinated core-shell particles with water and oil repellency

Fluorine-containing graft copolymer and its manufacturing method

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Daejeon, South Korea

In Jun Park