RESIN COMPOSITION FOR INJECTION MOLDING AND INJECTION- MOLDED PRODUCT

• Main Authors: SAKAGUCHI TAKAYA, OKADA YOSHITAKA
• Format: Patent
• Language: English
• Published: 31.07.2002
• Edition: 7
• Subjects: AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING; CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; PERFORMING OPERATIONS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR; SHAPING OR JOINING OF PLASTICS; THEIR PREPARATION OR CHEMICAL WORKING-UP; TRANSPORTING; USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS; WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

PROBLEM TO BE SOLVED: To provide a lightweight and flexible resin composition comprising an olefinic thermoplastic resin having injection moldability and an injection- molded product obtained therefrom. SOLUTION: This resin composition for injection molding is characterized by comprising 100 pts.wt. of the olefinic thermoplastic resin composition comprising (a) 5-80 wt.% of amorphous polypropylene containing <=20% of insoluble substances in boiled n-heptane and (b) 95-20 wt.% of an elastomer (wherein, the total of the amorphous polypropylene and the elastomer is 100 wt.%) and (c) 10-200 pts.wt. of a filler.