Title:
瀝青を改質する方法
Document Type and Number:
Japanese Patent JP2008535993
Kind Code:
A
Abstract:
The invention relates to a process for modifying bitumen with waster rubber powder comprising a first step in which rubber powder is mixed with aromatic oil in proportions comprised between 98-60% and 2-40% respectively, and a second step in which the rubber powder resulting from the previous step is mixed with bitumen in proportions comprised between 3-30% and 97-70% respectively, at a temperature comprised between 140-200°C and for a time comprised between 5-40 minutes. The main advantages of the process are that the bitumen is modified in less time than in the known processes and the specifications of the modified bitumen can be controlled, making its use feasible from a commercial point of view, thus contributing to solving the environmental problem due to the tire surpluses.
Inventors:
Dunnert, Dieter
Application Number:
JP2008505910A
Publication Date:
September 04, 2008
Filing Date:
April 12, 2005
Export Citation:
Assignee:
Dunnert, Dieter
International Classes:
C08J3/20; C08L21/00; C08L91/00; C08L95/00
Domestic Patent References:
| JPH06279684A | 1994-10-04 | |||
| JPS4933916A | 1974-03-28 | |||
| JP2000230055A | 2000-08-22 | |||
| JPH08503252A | 1996-04-09 |
Foreign References:
| US5385401A | 1995-01-31 |
Attorney, Agent or Firm:
Atsushi Aoki
Takashi Ishida
Tetsuji Koga
Toko Saito
Takashi Ishida
Tetsuji Koga
Toko Saito