RESIN COMPOSITION, GASKET FOR PLASTIC LENS MOLDING AND PLASTIC LENS

PROBLEM TO BE SOLVED: To obtain a resin composition having moderate flexibility and heat resistance and causing no clouding in the lens in its production therefrom by cast polymerization, to obtain a plastic lens made from the resin composition, and to provide a gasket for plastic lens molding. SOLU...

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Bibliographische Detailangaben
1. Verfasser:	HAMANAKA TATSURO
Format:	Patent
Sprache:	eng
Schlagworte:	AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING CHEMISTRY COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULARARTICLES METALLURGY OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS OPTICS ORGANIC MACROMOLECULAR COMPOUNDS PERFORMING OPERATIONS PHYSICS SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS THEIR PREPARATION OR CHEMICAL WORKING-UP TRANSPORTING WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To obtain a resin composition having moderate flexibility and heat resistance and causing no clouding in the lens in its production therefrom by cast polymerization, to obtain a plastic lens made from the resin composition, and to provide a gasket for plastic lens molding. SOLUTION: This resin composition comprises the following three components A, B, and C: (A) a polyolefin >=130 deg.C in melting point, (B) a hydrogenated block copolymer >=100,000 but =10,000 but