TONER, DEVELOPER USING THE TONER, IMAGE FORMING APPARATUS
申请人:Ricoh Company, Ltd.
公开号:EP2769266B1
公开(公告)日:2017-01-11
METHACRYLATE-BASED BULKY SIDE-CHAIN SILOXANE CROSS LINKERS FOR OPTICAL MEDICAL DEVICES
申请人:McGee Joseph A.
公开号:US20100118261A1
公开(公告)日:2010-05-13
Novel polymers for biomedical use, especially rigid gas permeable contact lenses that are based on bulky side-chain siloxane cross linkers. The siloxanes, either alone, or as copolymers with bulky and non-bulky mono-functional polymerizable siloxanes, fluoro monomers, such as hexafluoroisopropyl methacrylate, and hydrophilic monomers, result in transparent, high oxygen permeable polymers possessing excellent lathing and milling characteristics.