Method of Preparing Polymeric Compositions for Oxygen Permeable Contact Lenses
申请人:POLYMER TECHNOLOGY CORPORATION
公开号:EP0424099A2
公开(公告)日:1991-04-24
Carboxylic acid esters devoid of beta hydrogens are homopolymerized or copolymerized with contact lens organic materials to form desirable contact lens materials and contact lenses. These materials have good contact lens properties, including desirable DK values, hardness, machineability and a desirable refractive index of at least 1.
[EN] PREPARATION METHOD FOR HIGH-MOISTURE-PERMEABILITY FLUORINE-CONTAINING SUPER-OLEOPHOBIC MICROPOROUS MEMBRANE<br/>[FR] PROCÉDÉ DE PRÉPARATION D'UNE MEMBRANE MICROPOREUSE SUPER-OLÉOPHOBE CONTENANT DU FLUOR À HAUTE PERMÉABILITÉ À L'HUMIDITÉ<br/>[ZH] 高透湿含氟超疏油微孔膜的制备方法
Fluorine-containing Mixture Material and Fluorine-containing Super-oleophobic Microporous Membrane Using Same as Raw Material, and Preparation Method therefor and Use thereof
申请人:Zhejiang Hyproof Technology Co., Ltd
公开号:US20210403696A1
公开(公告)日:2021-12-30
This disclosure provides a fluorine-containing mixture and a fluorine-containing super-oleophobic microporous membrane using the fluorine-containing mixture as a raw material, as well as preparation methods and applications for the fluorine-containing mixture and the fluorine-containing super-oleophobic microporous membrane. The fluorine-containing mixture of the present disclosure comprises, by weight percentage, the following components: Component A: 50%˜90%; Component B: 3%˜25%; Component C: 0%˜35%; Component D: 0%˜3%; wherein Component A comprises high molecular weight polytetrafluoroethylene homopolymer or copolymer dispersion resin; Component B comprises one or more fluorine-containing alkyl acrylate monomers; Component C comprises one or more fluorine-free acrylates; Component D comprises high temperature free radical initiator. There's no need to add inflammable or explosive lubricating oil, making the process highly safe; and the obtained fluorine-containing super-oleophobic microporous membrane has high waterproof, air-permeable, oil-resistant and washable performance, in line with the needs of a new generation of waterproof and air-permeable protective clothing.