RESIN COMPOSITION FOR INJECTION MOLDING OR COMPRESSION MOLDING

• Main Authors: UEMATSU MASAHIRO, YOSHIMOTO KEIICHI, YASUDA KAORU
• Format: Patent
• Language: Chinese; English
• Published: 08.02.2022
• Subjects: CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP

The present invention provides a resin composition for injection molding or compression molding, said resin composition using an ethylene ionomer that has excellent impact strength, heat resistance and long-term durability. The resin composition for injection molding or compression molding, said resin composition being characterized by containing an ionomer that is characterized by being obtained by converting at least some of carboxyl groups and/or dicarboxylic acid anhydride groups in a copolymer (P), which contains, as essential constituent units, a constituent unit (A) derived from ethylene and/or an alpha-olefin having 3 to 20 carbon atoms and a constituent unit (B) derived from a monomer having a carboxyl group and/or a dicarboxylic acid anhydride group, into a metal-containing carboxylic acid salt that contains at least one kind of metal ion selected from among group 1, group 2 and group 12 elements of the periodic table, said ionomer being also characterized in that the phase angle delta at the positi