POLYESTER RESIN FOR BLEND
PROBLEM TO BE SOLVED: To provide a polyester resin for blend capable of providing a polyester blended substance having a moderate crystallization rate and preferably applicable to molding of a heat-resistant container or the like by blending it in a polyester resin having a small crystallization rat...
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| creator | KIKUCHI ATSUSHI HISAJIMA AYUMI YAMAZAKI YU KAI MASAJIRO |
| description | PROBLEM TO BE SOLVED: To provide a polyester resin for blend capable of providing a polyester blended substance having a moderate crystallization rate and preferably applicable to molding of a heat-resistant container or the like by blending it in a polyester resin having a small crystallization rate. SOLUTION: This polyester resin is produced by a method comprising: preparing by a liquid-phase polymerization or a solid-phase polymerization, a polyester resin having an intrinsic viscosity in a range of 0.80 to 1.0 dL/g; and lowering the intrinsic viscosity of the polyester resin to 0.3 to 0.75 dL/g, to prepare a polyester resin having a terminal carboxy group concentration in a range of 20 to 50 eq/ton. COPYRIGHT: (C)2011,JPO&INPIT |
| format | Patent |
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SOLUTION: This polyester resin is produced by a method comprising: preparing by a liquid-phase polymerization or a solid-phase polymerization, a polyester resin having an intrinsic viscosity in a range of 0.80 to 1.0 dL/g; and lowering the intrinsic viscosity of the polyester resin to 0.3 to 0.75 dL/g, to prepare a polyester resin having a terminal carboxy group concentration in a range of 20 to 50 eq/ton. 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| 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 MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS PACKAGES PACKAGING ELEMENTS PACKING PERFORMING OPERATIONS STORING THEIR PREPARATION OR CHEMICAL WORKING-UP TRANSPORTING |
| title | POLYESTER RESIN FOR BLEND |
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