Process for producing a modified thermoplastic resin composition

• Main Authors: TAKASE, TORU, NAKAO, TAKUO, MAEKAWA, TATSUJI, KURIHARA, HIDESHI
• Format: Patent
• Language: English; French; German
• Published: 27.10.1999
• 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 process for preparing a modified thermoplastic resin composition by incorporating a modifier-containing thermoplastic resin into a transport line of a thermoplastic resin, comprising subjecting the resin to static mixing and to dynamic mixing by passing the resin through a dynamic mixing apparatus having a mixing blade unit and a power unit for driving the mixing blade unit and provided in the same transport line, as well as a modified thermoplastic resin composition prepared by the process and having a filtration pressure increase rate of no greater than 10 kg/cm /hr when filtration is performed using a double layer of 2400 mesh wire filters with an inner diameter of 64 mm DIAMETER , at a melting point of the modified thermoplastic resin or a temperature of from 20 DEG C to 100 DEG C higher than the plasticizing point of the resin and at a filtration rate of 33.3 g/min.