CLEAR POLYCARBONATE POLYESTER BLEND

• Main Authors: KANNAN GANESH, CHAKRABORTY MANATESH, JUIKAR VISHVAJIT C, JAYAKANNAN MANICKAM, SHAIKH ABBAS-ALLI GHUDUBHAI, TOTAD RAJASHEKHAR S
• Format: Patent
• Language: English
• Published: 18.08.2005
• Edition: 7
• Subjects: ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS,e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES,DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; CONVEYING; HANDLING THIN OR FILAMENTARY MATERIAL; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; PACKAGES; PACKAGING ELEMENTS; PACKING; PERFORMING OPERATIONS; STORING; THEIR PREPARATION OR CHEMICAL WORKING-UP; TRANSPORTING

PROBLEM TO BE SOLVED: To provide a polycarbonate polyester blend having a balanced clearness, processability, solvent resistance and environmental stress cracking resistance together with excellent mechanical and thermal properties. SOLUTION: The invention relates to the optically clear thermoplastic resin composition comprising structural units derived from substituted or unsubstituted polycarbonate and substituted or unsubstituted polyester, wherein said polyester comprises structural units derived from terephthalic acid and a mixture of 1, 4-cyclohexanedimethanol and ethylene glycol, wherein said ethylene glycol is greater than about 60 mole percent based on total moles of 1,4-cyclohexanedimethanol and ethylene glycol. In addition the composition possesses good environmental stress cracking resistance, and flow and thermal properties. COPYRIGHT: (C)2005,JPO&NCIPI