Resin composition for laser welding and molded article

A polybutylene terephthalate (PBT) resin composition for laser welding which can be evenly welded to attain high weld strength although it contains PBT as the base. The laser-weldable resin composition comprises 100 parts by weight of a polybutylene terephthalate resin (homopolyester or copolyester)...

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Bibliographische Detailangaben
1. Verfasser:	SAKATA KOUICHI,TAKAYAMA KATSUNORI
Format:	Patent
Sprache:	eng
Schlagworte:	AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING CHEMISTRY CLADDING OR PLATING BY SOLDERING OR WELDING COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS PERFORMING OPERATIONS SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS SOLDERING OR UNSOLDERING THEIR PREPARATION OR CHEMICAL WORKING-UP TRANSPORTING USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS WELDING WORKING BY LASER BEAM WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Beschreibung
Zusammenfassung:	A polybutylene terephthalate (PBT) resin composition for laser welding which can be evenly welded to attain high weld strength although it contains PBT as the base. The laser-weldable resin composition comprises 100 parts by weight of a polybutylene terephthalate resin (homopolyester or copolyester) (A), 1 to 50 parts by weight of an elastomer (B) such as a thermoplastic polystyrene elastomer or thermoplastic polyester elastomer, 5 to 100 parts by weight of a polycarbonate resin (C), 1 to 10 parts by weight of a plasticizer (D) (e.g., an aromatic polycarboxylic ester or acrylic plasticizer), and 0 to 100 parts by weight of a filler or reinforcement (E) such as glass fibers. This resin composition gives a molded article in which the light transmittance fluctuates little from part to part. This molded article can hence be evenly laser-welded to a mating material.