MODIFIED THERMOPLASTIC RESIN COMPOSITION AND METHOD OF PRODUCING THE SAME

• Main Authors: TAKASE, TORU, NAKAO, TAKUO, MAEKAWA, TATSUJI, KURIHARA, HIDESHI
• Format: Patent
• Language: English; French
• Published: 20.05.1999
• Edition: 6
• Subjects: AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G; CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; GENERAL PROCESSES OF COMPOUNDING; MAKING GRANULES OR PREFORMS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; PERFORMING OPERATIONS; PREPARATION OR PRETREATMENT OF THE MATERIAL TO BESHAPED; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIALCONTAINING 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

A method of producing a modified thermoplastic resin composition comprising the steps of statically mixing a modifier-containing thermoplastic resin when it is added to a conveyor line of a thermoplastic resin, and dynamically mixing the mixture by passing it through agitation blades provided to the same conveyor line and through a dynamic mixer having power for driving them; and a modified thermoplastic resin composition prepared by this method having a filtration pressure rising rate of not greater than 10 kg/cm2/h when the resin is filtrated by two 2,400-mesh metal net filters having an inner diameter of 64 mm and superposed with each other at either a melting point of the resin or a temperature higher by at least 20 ~C than its plasticization point but lower than 100 ~C at a filtration rate of 33.3 g/min.