Filled polymer component manufacture for polyurethane system, involves dividing one component into two parts with different filler contents

• Main Authors: PAWLIK, WOLFGANG, ALTHAUSEN, FERDINAND, NAPP, REINER
• Format: Patent
• Language: English; German
• Published: 11.07.2002
• Edition: 7
• Subjects: AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING; CHEMISTRY; COMPOSITIONS BASED THEREON; GENERAL PROCESSES OF COMPOUNDING; MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS; MAKING GRANULES OR PREFORMS; METALLURGY; MIXING, e.g. DISSOLVING, EMULSIFYING, DISPERSING; ORGANIC MACROMOLECULAR COMPOUNDS; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; PREPARATION OR PRETREATMENT OF THE MATERIAL TO BESHAPED; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIALCONTAINING PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR; SHAPING OR JOINING OF PLASTICS; THEIR PREPARATION OR CHEMICAL WORKING-UP; TRANSPORTING; WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL; WORKING-UP

Two fluid chemically reactive components are mixed to form a product and at least one of the components is divided into two or more parts, one of which includes a filler. The mixing ratio of the two parts can be varied which enables the filler content of the finished product to be adjusted as required. An Independent claim is also included for the process equipment which comprises two or more storage tanks(2,7) for the reactive components. One of the reactive components is stored in two parts in separate tanks(7,11) and one or both parts of this component contain a filler. Adjustable metering units(3,9,13) are located between the storage tanks for both parts and a mixing head(5) for all components of the mixture. Bei der Herstellung von Füllstoff-haltigen Formteilen aus einem fließfähigen Reaktionsgemisch, z. B. aus Polyol und Isocyanat, lässt sich die Umstellung auf einen anderen Füllstoffgehalt schneller und möglichst ohne Materialverlust vornehmen, indem mindestens eine der Reaktionskomponenten in mindestens zwei Teile aufgeteilt wird und mindestens einer davon mit Füllstoff beladen wird, indem das Mischungsverhältnis dieser Teile und damit der Füllstoffgehalt des fertigen Formteils eingestellt wird, wofür für mindestens eine der Reaktionskomponenten mindestens zwei Vorratsbehälter (7, 11) vorgesehen sind, und indem zwischen diesen beiden Vorratsbehältern (7, 11) und der Mischvorgang (5) einstellbare Dosiervorrichtungen (3, 9, 13) angeordnet sind.