Title:
特異な混合物で覆われたトレッドパターン要素を有するトレッド
Document Type and Number:
Japanese Patent JP4685791
Kind Code:
B2
Abstract:
A tire tread comprising a plurality of elements in relief (1) comprising a contact face (2) intended to come into contact with the roadway during travel and lateral faces (13, 14, 15, 16), the intersection of each lateral face with the contact face forming a ridge (23, 24, 25, 26). The tire tread also comprises a plurality of cutouts (3, 4) in the form of grooves and/or incisions, said cutouts being defined by facing main faces. Each tread pattern element (1) is formed with at least one rubber mix (referred to as “base mix”). This tread, viewed in section in a plane containing the thickness of this tread, has at least one face defining at least one cutout covered at least in part with a second rubber mix, referred to as “covering mix”, this part having covering mix extending when new over a height Hr at least equal to 30% of the height H of the face, and wherein at least one first base mix opens on to the contact face when new or at the latest after wear at most equal to 10% of the height Hr. The covering mix comprises a butyl rubber and the covering mix comprises a plasticiser of the type unsaturated C12-C22 fatty acid ester.
Inventors:
Shazanyon Robert
Vasour Didiere
Vasour Didiere
Application Number:
JP2006537200A
Publication Date:
May 18, 2011
Filing Date:
October 29, 2004
Export Citation:
Assignee:
Society Technology Michelin
Michelin Le Cherche et Technic Anonym
Michelin Le Cherche et Technic Anonym
International Classes:
B60C11/00; B60C1/00; B60C11/02; C08K5/103; C08L23/22
Domestic Patent References:
| JP1269601A | ||||
| JP58033504A | ||||
| JP2045202A | ||||
| JP62236840A |
Foreign References:
| WO2002088238A1 |
Attorney, Agent or Firm:
Sadao Kumakura
Fumiaki Otsuka
Shishido Kaichi
Disciple Maru Ken
Ino Sato
Fumiaki Otsuka
Shishido Kaichi
Disciple Maru Ken
Ino Sato