摘要:
PROBLEM TO BE SOLVED: To provide a process for easily preparing an ocular lens material having high oxygen permeability and excellent in surface wettability to water, surface lubricity, water retention, contamination resistance and biocompatibility at the same time. SOLUTION: The process for preparing an ocular lens material having a hydrophilic surface is characterized by comprising the steps of: (1) irradiating the surface of an ocular lens material with high-frequency plasma or excimer light; (2) contacting the surface of the ocular lens material, which is treated in accordance with the step (1), with a hydrophilic monomer-mixture solution containing at least one zwitterionic group-containing compound, water, an organic solvent and at least one kind of specified chain transferring agent; and (3) irradiating the surface of the ocular lens material, which is in the state of contacting with the hydrophilic monomer-mixture solution in the step (2), with ultraviolet rays having a wavelength of 250 to 500 nm and then, graft polymerizing the zwitterionic group-containing compound to the surface of the ocular lens material and then, forming a surface layer. An ocular lens material having a hydrophilic surface prepared by the process is also provided. COPYRIGHT: (C)2011,JPO&INPIT
摘要:
PROBLEM TO BE SOLVED: To provide a transparent conductive film which shows a low resistance value in case a film thickness of a ZnO transparent conductive thin film is thin (especially, in case the film thickness is around 100 nm or below) and has a small change rate of the resistance value under a high humidity and temperature environment, and its manufacturing method. SOLUTION: The transparent conductive film including an organic polymer film base material (1) includes a first oxide thin film (2) formed on the organic polymer film base material (1) and having a high visible light penetration rate, and the ZnO transparent conductive thin film (3) formed on the first oxide thin film (2). The first oxide thin film (2) is a transparent conductive film wherein the amount of oxygen is 60-90% of a stoichiometric value before the ZnO transparent conductive thin film (3) is formed. COPYRIGHT: (C)2010,JPO&INPIT
摘要:
A method for preparing a cyclic olefin addition polymer of high gas permeability, which method including subjecting a specific type of cyclic olefin-functional siloxane and a mixture thereof with a specific type of cyclic olefin compound to addition polymerization in the presence of a multi-component catalyst containing (A) a zero-valent palladium compound, (B) an ionic boron compound, and (C) a phosphine compound having a substituent group selected from an alkyl group having 3 to 6 carbon atoms, a cycloalkyl group and an aryl group, to obtain a cyclic olefin addition polymer of high gas permeability wherein a ratio of the structural units derived from the cyclic olefin-functional siloxane is at 10 to 100 mole% of the addition polymer and a number average molecular weight (Mn) ranges from 100,000 to 2,000,000.