Processing

Please wait...

Settings

Settings

Goto Application

1. WO2020110940 - RUBBER COMPOSITION FOR TIRE

Publication Number WO/2020/110940
Publication Date 04.06.2020
International Application No. PCT/JP2019/045802
International Filing Date 22.11.2019
IPC
B60C 1/00 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
CVEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
1Tyres characterised by the chemical composition or the physical arrangement or mixture of the composition
C08L 7/00 2006.01
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
7Compositions of natural rubber
C08L 15/00 2006.01
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
15Compositions of rubber derivatives
C08K 3/04 2006.01
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
KUSE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES AS COMPOUNDING INGREDIENTS
3Use of inorganic substances as compounding ingredients
02Elements
04Carbon
CPC
B60C 1/00
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
CVEHICLE TYRES
1Tyres characterised by the chemical composition or the physical arrangement or mixture of the composition
C08K 3/04
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
KUse of inorganic or non-macromolecular organic substances as compounding ingredients
3Use of inorganic substances as compounding ingredients
02Elements
04Carbon
C08L 15/00
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
15Compositions of rubber derivatives
C08L 7/00
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
7Compositions of natural rubber
Applicants
  • 横浜ゴム株式会社 THE YOKOHAMA RUBBER CO., LTD. [JP]/[JP]
Inventors
  • 清水 克典 SHIMIZU Katsunori
  • 尾崎 誠人 OZAKI Makoto
Agents
  • 清流国際特許業務法人 SEIRYU PATENT PROFESSIONAL CORPORATION
  • 昼間 孝良 HIRUMA, Takayoshi
  • 境澤 正夫 SAKAIZAWA, Masao
Priority Data
2018-22539930.11.2018JP
Publication Language Japanese (JA)
Filing Language Japanese (JA)
Designated States
Title
(EN) RUBBER COMPOSITION FOR TIRE
(FR) COMPOSITION DE CAOUTCHOUC POUR PNEUMATIQUE
(JA) タイヤ用ゴム組成物
Abstract
(EN)
Provided is a rubber composition for tires which is intended mainly for use in producing the undertread part of a pneumatic tire and which gives tires having low rolling resistance and excellent in terms of steering stability and durability. Carbon black having a nitrogen-adsorption specific surface area N2SA of 70 m2/g or smaller is incorporated in an amount of 50 parts by mass or more into 100 parts by mass of a rubber ingredient comprising 50 mass% or more natural rubber and 35-50 mass% terminal-modified butadiene rubber, and the rubber composition is made to have a hardness set at 65 or higher and a 40°C resilience set at 80% or higher.
(FR)
L'invention concerne une composition de caoutchouc pour pneumatiques qui est destinée principalement à être utilisée dans la production de la partie d'épaisseur sous sculpture d'un pneumatique et qui permet d'obtenir des pneumatiques ayant une faible résistance au roulement et d'excellentes propriétés en termes de stabilité de direction et de durabilité. Du noir de carbone ayant une surface spécifique déterminée par adsorption d'azote N2SA égale ou inférieure à 70 m2/g est incorporé dans une quantité d'au moins 50 parties en masse dans 100 parties en masse d'un ingrédient de caoutchouc comprenant au moins 50 % en masse de caoutchouc naturel et 35 à 50 % en masse de caoutchouc de butadiène modifié par un groupe terminal, et la composition de caoutchouc est conçue pour avoir une dureté égale ou supérieure à 65 et une résilience à 40 °C égale ou supérieure à 80 %.
(JA)
主に空気入りタイヤのアンダートレッド部に用いることを意図したタイヤ用ゴム組成物であって、転がり抵抗が低く、且つ、タイヤにした時の操縦安定性や耐久性に優れるタイヤ用ゴム組成物を提供する。天然ゴム50質量%以上と末端変性ブタジエンゴム35質量%~50質量%とを含むゴム成分100質量部に対して、窒素吸着比表面積N2 SAが70m2 /g以下であるカーボンブラックを50質量部以上配合し、ゴム組成物の硬度を65以上、40℃における反発弾性率を80%以上に設定する。
Latest bibliographic data on file with the International Bureau