Title:
REDUCING CRUMB RUBBER MODIFIED BITUMEN ODORS
Document Type and Number:
WIPO Patent Application WO/2018/068732
Kind Code:
A1
Abstract:
A method for reducing odors including the steps of admixing active agents and a diluting agent to liquid crumb rubber modified bitumen, wherein the active agents comprise 20 to 60 wt.-% of an aldehyde selected from alpha-hexyl cinnamaldehyde, 2- (4-tert. -butylbenzyl) propionaldehyde, 2-benzylidenheptanal, or mixtures thereof, and 10 to 40 wt.-% of one or more alcohols having a boiling point of at least 150 ℃, calculated on the total weight of active agents. A crumb rubber modified bitumen composition as obtained by the method above. The use of a crumb rubber modified bitumen composition as obtained by the method above in road surfacing and road base materials, in insulating layers for buildings, in roofing materials and/or in sealing sheeting.
Inventors:
XU LITING (CN)
COLANGE JACQUES (FR)
YAN HUI (CN)
COLANGE JACQUES (FR)
YAN HUI (CN)
Application Number:
PCT/CN2017/105722
Publication Date:
April 19, 2018
Filing Date:
October 11, 2017
Export Citation:
Assignee:
SHELL INT RESEARCH (NL)
SHELL OIL CO (US)
XU LITING (CN)
SHELL OIL CO (US)
XU LITING (CN)
International Classes:
C08L95/00; C08K5/00; C08K5/07; C08L21/00
Foreign References:
| CN101842426A | 2010-09-22 | |||
| CN102131857A | 2011-07-20 | |||
| EP2338526A1 | 2011-06-29 | |||
| US20090314184A1 | 2009-12-24 |
Attorney, Agent or Firm:
CCPIT PATENT AND TRADEMARK LAW OFFICE (CN)
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