TREA

Rubber composition and pneumatic tire using the same

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Information

  • Patent Application
  • 20070149648
  • Publication Number
    20070149648
  • Date Filed
    November 15, 2006
    18 years ago
  • Date Published
    June 28, 2007
    17 years ago
Information
Abstract
A rubber composition capable of improving all of processability, abrasion resistance, rolling resistance property and wet skid performance and a pneumatic tire using the same are provided.
Description
Claims
  • 1. A rubber composition comprising 25 to 100 parts by weight of a surface-treated silica based on 100 parts by weight of a rubber component comprising a natural rubber and/or a diene synthetic rubber, said surface-treated silica being obtainable by mixing a silica and a sulfur-containing organic silicon compound represented by the general formula (1):
  • 2. The rubber composition of claim 1, wherein when said surface-treated silica is extracted by a solvent, an amount of an unreacted sulfur-containing organic silicon compound contained in an extracted solution is at most 50% by weight.
  • 3. The rubber composition of claim 1, wherein the surface-treated silica is prepared by reacting the sulfur-containing organic silicon compound with said silica in the presence of 0.1 to 10 parts by weight of an acidic compound on the basis of 100 parts by weight of said silica.
  • 4. The rubber composition of claim 1, wherein the surface-treated silica is prepared by reacting the sulfur-containing organic silicon compound with said silica in the presence of 0.1 to 10 parts by weight of a basic compound on the basis of 100 parts by weight of said silica.
  • 5. The rubber composition of claim 1, wherein the surface-treated silica is prepared by reacting a portion of the sulfur-containing organic silicon compound with said silica in the presence of 0.1 to 10 parts by weight of an acidic compound on the basis of 100 parts by weight of said silica, and then, by reacting the residual sulfur-containing organic silicon compound with said silica in the presence of 0.1 to 10 parts by weight of a basic compound on the basis of 100 parts by weight of said silica.
  • 6. The rubber composition of claim 3, wherein the acidic compound is a sodium salt and/or a potassium salt.
  • 7. The rubber composition of claim 4, wherein the basic compound is a sodium salt and/or a potassium salt.
  • 8. The rubber composition of claim 5, wherein the acidic compound and/or the basic compound is a sodium salt and/or a potassium salt.
  • 9. A pneumatic tire which comprises the rubber composition of claim 1.
  • 10. A pneumatic tire which comprises the rubber composition of claim 3.
  • 11. A pneumatic tire which comprises the rubber composition of claim 4.
Priority Claims (1)
Number Date Country Kind
2005-372392 Dec 2005 JP national