Global Patent Index - EP 3774388 A1

EP 3774388 A1 20210217 - RUBBER COMPOSITION COMPRISING A REINFORCING FILLER WITH A SMALL SPECIFIC SURFACE AREA

Title (en)

RUBBER COMPOSITION COMPRISING A REINFORCING FILLER WITH A SMALL SPECIFIC SURFACE AREA

Title (de)

KAUTSCHUKMISCHUNG MIT EINEM VERSTÄRKENDEN FÜLLSTOFF MIT EINER KLEINEN SPEZIFISCHEN OBERFLÄCHE

Title (fr)

COMPOSITION DE CAOUTCHOUC COMPRENANT UNE CHARGE RENFORÇANTE A FAIBLE SURFACE SPECIFIQUE

Publication

EP 3774388 A1 20210217 (FR)

Application

EP 19719564 A 20190401

Priority

  • FR 1853079 A 20180409
  • FR 2019050751 W 20190401

Abstract (en)

[origin: WO2019197746A1] The invention relates to a rubber composition on the basis of an elastomer matrix, comprising at least 90 phr of at least one isoprenic elastomer, a reinforcing filler comprising predominantly at least one carbon black, referred to as NC black, having a BET specific surface area not greater than 30 m²/g and an oil absorption number of compressed sample (COAN) of at least 60 ml/100g, and a crosslinking system, said composition not comprising any, or not comprising more than 10 phr, carbon black with a BET specific surface area greater than 30 m²/g and a COAN greater than 40 ml/100g, and not comprising any, or comprising no more than, 10 phr silicon dioxide.

IPC 8 full level

C08K 3/04 (2006.01); B60C 1/00 (2006.01); C08L 7/00 (2006.01)

CPC (source: EP US)

B60C 1/00 (2013.01 - EP); B60C 1/0041 (2013.01 - US); B60C 9/22 (2013.01 - US); C08K 3/04 (2013.01 - EP US); C08K 5/0025 (2013.01 - EP); B60C 2009/2016 (2013.01 - US); B60C 2009/2019 (2013.01 - US); C08K 2201/006 (2013.01 - EP US); C08K 2201/019 (2013.01 - EP)

C-Set (source: EP)

  1. C08K 3/04 + C08L 7/00
  2. C08K 5/0025 + C08L 7/00

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

Designated extension state (EPC)

BA ME

DOCDB simple family (publication)

FR 3079838 A1 20191011; FR 3079838 B1 20201218; BR 112020019114 A2 20210112; BR 112020019114 B1 20240227; CN 111989227 A 20201124; EP 3774388 A1 20210217; US 2021115218 A1 20210422; WO 2019197746 A1 20191017

DOCDB simple family (application)

FR 1853079 A 20180409; BR 112020019114 A 20190401; CN 201980023725 A 20190401; EP 19719564 A 20190401; FR 2019050751 W 20190401; US 201917046338 A 20190401