Process and apparatus for blending viscous polymers in solvent

• Main Author: JOHNSTON; RAY L
• Format: Patent
• Language: English
• Published: 24.11.1992
• Subjects: APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBONFILAMENTS; CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS,THREADS, FIBRES, BRISTLES OR RIBBONS; MAKING GRANULES OR PREFORMS; MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OFARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES ORRIBBONS; NATURAL OR ARTIFICIAL THREADS OR FIBRES; PERFORMING OPERATIONS; PREPARATION OR PRETREATMENT OF THE MATERIAL TO BESHAPED; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIALCONTAINING PLASTICS; SPINNING; TEXTILES; TRANSPORTING; WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

A viscous polymer is passed through a filament or thread forming apparatus (2) and introduced into a flowing solvent. The polymer containing solvent is then passed through a shear strain apparatus (18) where the polymer not formed into filaments or threads is formed into long fibers and the solvent and polymer are thoroughly blended. The polymer and solvent leaving the shear strain apparatus (18) may be introduced into a holding apparatus (30) wherein the polymer and solvent are retained until the polymer has gelled.