RESIN COMPOSITION FOR BLOW MOLDING AND BLOW MOLDED ARTICLE MADE THEREOF

• Main Authors: SHIAKU TOSHIO, HIJIKATA KENJI, SUZUKI MASATO, FURUI KENJI
• Format: Patent
• Language: English
• Published: 24.08.1993
• Subjects: 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; INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS; 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; WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

PURPOSE:To provide the title compsn. which has an improved melt tension, exhibits no drawdown effect in parison during blow molding and a markedly improved blow moldability, retains a stable flowability without gelling even when the viscosity is high, and enables an efficient molding of a relatively large-sized blow molded article having a uniform wall thickness and a good appearance. CONSTITUTION:100 pts.wt. resin compsn. comprising 1-99 pts.wt. thermoplastic polyester resin obtd. from an acid component consisting mainly of an arom. dicarboxylic acid or its ester-forming deriv. and a dihydroxy component consisting mainly of a 2-8C aliph. dihydroxy compd. and 99-1 pt.wt. thermoplastic polyamide resin is compounded and melt mixed with 0.2-10 pts.wt. styrene copolymer consisting of 40-97wt.% styrene, 60-3wt.% glycidyl ester of an alpha,beta-unsatd. acid, and 0-50wt.% another vinyl monomer and 0-100 pts.wt. at least one filler selected from the group consisting of fibrous, powdered, and platelike fillers, thus giving the title compsn.