Global patent index - EP 1034215 A1

EP 1034215 A1 2000-09-13 - RUBBER COMPOSITION FOR TYRES, REINFORCED WITH A CARBON BLACK COATED WITH AN ALUMINOUS LAYER

Title (en)

RUBBER COMPOSITION FOR TYRES, REINFORCED WITH A CARBON BLACK COATED WITH AN ALUMINOUS LAYER

Title (de)

KAUTSCHUKZUSAMMENSETZUNG FÜR REIFEN, DIE MIT ALUMINIUMBESCHICHTETEM RUSS VERSTÄRKT IST

Title (fr)

COMPOSITION DE CAOUTCHOUC POUR PNEUMATIQUES, RENFORCEE D'UN NOIR DE CARBONE REVETU D'UNE COUCHE ALUMINEUSE

Publication

EP 1034215 A1 (FR)

Application

EP 98963524 A

Priority

  • EP 9807679 W
  • FR 9715130 A

Abstract (en)

[origin: WO9928380A1] The invention concerns a sulphur-vulcanisable rubber composition, capable of being used for making tyres, comprising at least a diene elastomer, a reinforcing filler and a coupling agent ensuring the bond between the reinforcing filler and the elastomer. The invention is characterised in that said reinforcing filler consists wholly or partly of a modified carbon black having the following characteristics: (i) it is coated at least partly with an aluminium oxide and/or hydroxide layer; (ii) its specific BET surface ranges between 30 and 400 m<2>/g; (iii) its average particle size (in volume), marked dw, ranges between 20 and 400 nm; (iv) its deagglomeration rate, marked alpha , measured by the so-called ultrasound-deagglomeration test, at 10 % of the power of an ultrasound probe of 600 watts, is greater than 1.10<-3> mu m<-1>/s.

IPC 1-7 (main, further and additional classification)

C08K 9/02; C08L 21/00

IPC 8 full level (invention and additional information)

B60C 1/00 (2006.01); B60C 5/14 (2006.01); C08K 9/02 (2006.01); C08K 9/04 (2006.01); C08L 21/00 (2006.01)

CPC (invention and additional information)

C08K 9/02 (2013.01); B60C 1/00 (2013.01); B60C 1/0016 (2013.01); C08K 9/04 (2013.01)

Combination set (CPC)

  1. C08K 9/02 + C08L 21/00
  2. C08K 9/04 + C08L 21/00

Citation (search report)

See references of WO 9928380A1

Designated contracting state (EPC)

BE DE ES FR GB IT NL

EPO simple patent family

WO 9928380 A1 19990610; AU 1876199 A 19990616; BR 9814910 A 20001003; CA 2310131 A1 19990610; CN 1284099 A 20010214; EP 1034215 A1 20000913; JP 2001525436 A 20011211

INPADOC legal status

2004-04-28 [18D] DEEMED TO BE WITHDRAWN

- Ref Legal Event Code: 18D

- Effective date: 20031019

2001-05-02 [17Q] FIRST EXAMINATION REPORT

- Ref Legal Event Code: 17Q

- Effective date: 20010319

2000-09-13 [17P] REQUEST FOR EXAMINATION FILED

- Ref Legal Event Code: 17P

- Effective date: 20000628

2000-09-13 [AK] DESIGNATED CONTRACTING STATES:

- Ref Legal Event Code: AK

- Designated State(s): BE DE ES FR GB IT NL