Title:
OIL-EXTENDED NATURAL RUBBER, METHOD FOR PRODUCING SAME, RUBBER COMPOSITION USING SAME AND TIRE
Document Type and Number:
WIPO Patent Application WO/2007/088771
Kind Code:
A1
Abstract:
Disclosed is an oil-extended natural rubber which enables to improve fracture strength and wear resistance of a rubber composition. Specifically disclosed is an oil-extended natural rubber which is obtained by adding an emulsified extender oil to a natural rubber latex and then solidifying and drying the resulting material. The addition amount of the extender oil is preferably 5-80% by mass relative to the rubber component in the natural rubber latex. It is also preferable for the oil-extended natural rubber that the rubber component has a weight average molecular weight of not less than 1,500,000 in terms of polystyrene.
Inventors:
KONDO HAJIME (JP)
Application Number:
PCT/JP2007/051177
Publication Date:
August 09, 2007
Filing Date:
January 25, 2007
Export Citation:
Assignee:
BRIDGESTONE CORP (JP)
KONDO HAJIME (JP)
KONDO HAJIME (JP)
International Classes:
C08C1/14; B60C1/00; C08K3/04; C08K3/36; C08L7/00; C08L91/00
Foreign References:
| JP2007051206A | 2007-03-01 | |||
| JP2005120153A | 2005-05-12 | |||
| JPH0489847A | 1992-03-24 |
Other References:
See also references of EP 1980574A4
Attorney, Agent or Firm:
SUGIMURA, Kenji et al. (2-4 Kasumigaseki 3-chome, Chiyoda-k, Tokyo 13, JP)
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