Thermoplastic moulding materials based on polyethylene terephthalate for use in injection moulding of parts

• Main Authors: MUELLER; NORBERT, EICHER; JOCHEN, SARTOR; KARL-HEINZ
• Format: Patent
• Language: English
• Published: 04.04.2000
• Edition: 7
• Subjects: AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING; CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; GENERAL PROCESSES OF COMPOUNDING; 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; WORKING-UP

PCT No. PCT/EP96/05636 Sec. 371 Date Jun. 16, 1998 Sec. 102(e) Date Jun. 16, 1998 PCT Filed Dec. 16, 1996 PCT Pub. No. WO97/23566 PCT Pub. Date Jul. 3, 1997A thermoplastic molding material based on polyethylene terephthalate contains preferably from 37 to 96% by weight of PET, from 1 to 20% by weight of a polymer material containing preferably polyurethane, and from about 4 to 30% by weight of a pigment-like reinforcing agent comprising metal and/or metal oxide. The molding materials are suitable for processing by injection molding, and the shaped articles produced therefrom have advantageous properties, in particular with regard to a higher density compared with a similar polybutylene terephthalate (PBT) having glass fibers as a filler. The thermoplastic molding material can advantageously be used for small parts and for housing parts for electronic equipment and data devices.