Crosslinked polyolefin foam

• Main Authors: MIKAMI, HIROKI, UNO, TAKUMEI
• Format: Patent
• Language: Chinese; English
• Published: 01.06.2016
• Subjects: AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G; CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; GENERAL PROCESSES OF COMPOUNDING; MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; WORKING-UP

This crosslinked polyolefin foam is obtained by crosslinking and foaming a polyolefin resin composition containing: a polyolefin resin (A); and a rubber (B) with a Mooney viscosity (ML1+4, 100 DEG C) of 15 to 85. This crosslinked polyolefin foam contains 10 to 150 parts by mass of the rubber (B) per 100 parts by mass of the polyolefin resin (A); the thickness of the foam is 1.5mm or more and has a 25% compressive hardness of 60kPa or less; the degree of crosslinking of at least one of the surface layer parts from either face to a depth of 500[mu]m is at least 5% greater than the degree of crosslinking of the intermediate layer part excluding the surface layer parts on both surfaces.