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US 7,407,611 B2Granted
Elastomer mixtures for rubber manufacture
AssigneeBuhler AG
InventorsFederico Innerebner, Erhard Krumpholz, Christoph Näf, Achim-Philipp Sturm, Bernhard Stalder, Roland Halter
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Abstract
A method is disclosed for producing elastomer compounds for use in the production of rubbers. At least one elastomer to be processed for the production of an elastomer mixture can be slowly added to a mixer/extruder and is mixed and plasticized and/or masticated (melted) while it passes through the mixer/extruder. The elastomer, when slowly added to the mixer/extruder, can be present in a fluid medium in an evenly distributed form.
Claims32
A method for manufacturing an elastomer mixture for manufacturing rubber, comprising:
- metering at least one elastomer to be processed for manufacturing the elastomer mixture into a mixing extruder;
- mixing and plasticizing and/or masticating the elastomer as the elastomer passes through the mixing extruder, the elastomer being present in a uniformly distributed form in a first fluid medium while being charged into the mixing extruder;
- introducing a reinforcing material in a second fluid medium to the elastomer;
- removing the first fluid medium and/or second fluid medium in several dewatering steps as the product passes through the mixing extruder;
- and
- incorporating a filler in several incorporation steps as the product passes through the mixing extruder;
- wherein the incorporation steps and dewatering steps alternate in succession.
4 more elements
Dependencies are inferred from the claim text.