Foamed rubber compositions for pneumatic tires and method of producing the same

摘要: A foamed rubber composition for pneumatic tires comprises at least one diene polymer as a ingredient and includes closed cells in matrix rubber, each of these being covered with coat layer made from given amount resin or composite having JIS-C hardness not less than 75, particle size 10-200 µm reacted conjugate unit content 10% by weight. In the production composition, melting point glass transition is restricted to 5°C lower vulcanizing temperature.