EP 2493964 A1 20120905 - METHOD FOR PREPARING A MASTERBATCH OF NATURAL RUBBER AND SILICA

Title (en)

METHOD FOR PREPARING A MASTERBATCH OF NATURAL RUBBER AND SILICA

Title (de)

VERFAHREN ZUR MASTERBATCH-HERSTELLUNG AUS NATURKAUTSCHUK UND SILICA

Title (fr)

METHODE DE PREPARATION D'UN MELANGE MAITRE DE CAOUTCHOUC NATUREL ET DE SILICE

Publication

EP 2493964 A1 20120905 (FR)

Application

EP 10768498 A 20101025

Priority

FR 0957694 A 20091030
EP 2010066044 W 20101025

Abstract (en)

[origin: WO2011051215A1] The invention relates to a method for preparing a masterbatch of natural rubber and silica, including the following consecutive steps: doping the silica with an at least divalent metal element; preparing at least one dispersion of the thus-doped silica in water; contacting and mixing natural field-rubber latex and the aqueous dispersion of doped silica in order to obtain a coagulum; recovering the coagulum; and drying the recovered coagulum in order to obtain the masterbatch.

IPC 8 full level

C08J 3/22 (2006.01); B60C 1/00 (2006.01); C08K 3/36 (2006.01); C08K 9/06 (2006.01); C08L 9/10 (2006.01)

CPC (source: EP US)

B60C 1/0016 (2013.01 - EP US); C08J 3/215 (2013.01 - EP US); C08J 3/226 (2013.01 - EP US); C08K 3/36 (2013.01 - EP US); C08K 9/02 (2013.01 - EP US); C08J 2307/02 (2013.01 - EP US); C08J 2407/00 (2013.01 - EP US); C08J 2409/00 (2013.01 - EP US)

C-Set (source: EP US)

C08K 3/36 + C08L 7/02
C08K 9/02 + C08L 7/00

Citation (search report)

See references of WO 2011051215A1

Designated contracting state (EPC)

AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

DOCDB simple family (publication)

WO 2011051215 A1 20110505; CN 102725332 A 20121010; CN 102725332 B 20141105; EP 2493964 A1 20120905; FR 2954774 A1 20110701; FR 2954774 B1 20120106; JP 2013509470 A 20130314; RU 2012122214 A 20131210; RU 2559497 C2 20150810; US 2012264875 A1 20121018; US 9175144 B2 20151103

DOCDB simple family (application)

EP 2010066044 W 20101025; CN 201080049171 A 20101025; EP 10768498 A 20101025; FR 0957694 A 20091030; JP 2012535765 A 20101025; RU 2012122214 A 20101025; US 201013503593 A 20101025