POLYESTER RESIN COMPOSITION

PURPOSE:To obtain a polyester resin composition formable to arbitrary form and markable with laser light in high contrast by adding a crystalline graphite compound to a thermoplastic polyester polymer. CONSTITUTION:The objective polyester resin composition markable with laser light is produced by co...

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Bibliographische Detailangaben
Hauptverfasser:	SHIMOMA AKIRA, SUZUOKA AKIHIRO, SHIOZAKI TETSUYA, SASAKI MITSUE
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMISTRY COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-UP USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS
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Beschreibung
Zusammenfassung:	PURPOSE:To obtain a polyester resin composition formable to arbitrary form and markable with laser light in high contrast by adding a crystalline graphite compound to a thermoplastic polyester polymer. CONSTITUTION:The objective polyester resin composition markable with laser light is produced by compounding (A) a thermoplastic polyester polymer (e.g. polybutylene terephthalate, polyethylene terephthalate, polybutylene naphthalenedicarboxylate and polyethylene naphthalenedicarboxylate) having an intrinsic viscosity of a moldable level with (B) 0.001-2wt.% (based on whole composition) of granular, flaky, earthy or block graphite compound having an average particle diameter of 0.1-150mum and, as necessary, (C) 0-70wt.% (based on whole composition) of an inorganic filler (e.g. glass fiber or talc) and heat- stabilizer, pigment, flame-retardant, etc.