NOVEL TRANSPARENT RESIN AND TRANSPARENT OPTICAL RESIN HAVING HIGH REFRACTIVE INDEX

• Main Authors: NAKAMICHI TOSHIHIKO, ISHIDOYA MASAHIRO
• Format: Patent
• Language: English
• Published: 20.07.1989
• Subjects: CHEMISTRY; COMPOSITIONS BASED THEREON; MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP

PURPOSE:To obtain the title lightweight resin suitable as optical material, molding material, film, coating compound, especially lens for reforming spectacles, comprising a (co)polymer of a specific (co)monomer. CONSTITUTION:The aimed resin comprising a homopolymer of a monomer (e.g., 4-vinyl-1,2-phenylene carbonate or 3-acryloyloxy-1,2-phenylene carbonate) shown by the formula [R is -CH=CH2, -CH2-CH=CH2, -COOC(CH3)=CH2, -COOCH2-CH=CH2, -OCOO-CH2-CH=CH2, -OCOO-CH2-C(CH3)=CH2, -OCOCH= CH2 or -OCOC(CH3)=CH2; A is O or S] or a copolymer comprising the monomer and a copolymerizable comonomer.