Rubber wet master batch producing method, rubber wet master batch, and rubber composition containing rubber wet master batch
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United States of America Patent
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Dec 27, 2016
Grant Date -
Sep 3, 2015
app pub date -
Jun 18, 2013
filing date -
Nov 8, 2012
priority date (Note) -
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status (Latency Note)
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Abstract
A method for producing a rubber wet master batch contains a coagulating step of mixing a slurry solution containing the filler and the dispersing solvent with the rubber latex solution, and coagulating the mixture, thereby producing a filler-containing rubber coagulation, and a heating step of using a uniaxial extruder to heat the filler-containing rubber coagulation to a temperature of 180 to 200 C, thereby dehydrating, drying and plasticizing the filler-containing rubber coagulation through a single step. The uniaxial extruder is an extruder having a screw, and an outer cylinder having an inner wall surface in which a slit is formed to be extended along the longitudinal direction of the outer cylinder (screw axial direction); and at least one portion of the inner wall surface of the outer cylinder is subjected to blasting treatment.
First Claim
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International Classification(s)
- C08J:WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTE....
- B29C:SHAPING OR JOINING OF PLASTICS; SHAPING OF SUBSTAN....
- B29B:PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE ....
- C08C:TREATMENT OR CHEMICAL MODIFICATION OF RUBBERS
- B29K:INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, ....
- B01F:MIXING, e.g. DISSOLVING, EMULSIFYING, DISPERSING
- C08L:COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08K:USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUB....
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