Title:
BITUMEN COMPOSITIONS AND A PROCESS FOR THEIR PREPARATION
Document Type and Number:
WIPO Patent Application WO1997019981
Kind Code:
A3
Abstract:
The invention provides a process for preparing a bitumen composition comprising blowing a mixture with an oxygen-containing gas which mixture comprises a bitumen having a penetration of at least 300 dmm (as measured by ASTM D 5 at 25 DEG C) and a thermoplastic rubber which is present in an amount of less than 1 wt.%, based on total mixture; bitumen compositions obtainable by such process; and the use of such bitumen compositions in industrial applications.
Inventors:
CHION JACQUES
MORIZUR MARIE-FRANCOISE
MORIZUR MARIE-FRANCOISE
Application Number:
PCT/EP1996/005366
Publication Date:
July 03, 1997
Filing Date:
November 27, 1996
Export Citation:
Assignee:
SHELL INT RESEARCH (NL)
SHELL CANADA LTD (NL)
SHELL CANADA LTD (NL)
International Classes:
C08J9/30; C08L21/00; E04D5/10; C08L95/00; (IPC1-7): C08J9/30; C08L95/00
Domestic Patent References:
| WO1994016019A1 | 1994-07-21 |
Foreign References:
| US3853798A | 1974-12-10 |
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