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Patent Searching and Data


Title:
POLYURETHANE, MODIFIED ASPHALT AND MIXTURE MATERIAL CONTAINING SAME AND ROAD SURFACE STRUCTURE
Document Type and Number:
WIPO Patent Application WO/2016/206636
Kind Code:
A1
Abstract:
Disclosed is a polyurethane prepared by the following method. The method comprises: adding a polymerization inhibitor, catalyst and isocyanate component in a reaction container, adding a polyol to the reactor while stirring at room temperature under nitrogen, increasing the temperature to 50-80˚C, and maintaining the temperature to react for 0.5-6 hours. Further disclosed are a mixture material containing the polyurethane and a polyurethane modified asphalt road surface structure. The synthesis condition of the polyurethane is mild, and a secondary reaction thereof with the air and an active hydrogen component in the asphalt can occur during maintenance and formation to further increase the strength of a mixture material thereof. In addition, the standard Marshall stability at 60˚C thereof meets the petroleum asphalt requirement, such that a service life of the asphalt road surface can be increased.

Inventors:
CAO DONGWEI (CN)
ZHANG HAIYAN (CN)
FAN YONGJUN (CN)
XIA LEI (CN)
ZHANG YANJUN (CN)
Application Number:
PCT/CN2016/087102
Publication Date:
December 29, 2016
Filing Date:
June 24, 2016
Export Citation:
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Assignee:
RES INST HIGHWAY MINI TRANSP (CN)
BEIJING ZHONGLU GAOKEHIGHWAY TECH CO LTD (CN)
International Classes:
C08G18/40; C04B26/16; C04B26/26; C08G18/48; C08L95/00
Foreign References:
CN102617070A2012-08-01
CN102585685A2012-07-18
CN103102706A2013-05-15
CN104176985A2014-12-03
US20100256295A12010-10-07
Other References:
WANG LI ET AL.: "Study on Structural Layer Design of Bituminous Pavement in the Circumstance of Heavy Traffic", COMMUNICATIONS SCIENCE AND TECHNOLOGY HEILONGJIANG, 15 January 2007 (2007-01-15), pages 44 and 46
Attorney, Agent or Firm:
CN-KNOWHOW INTELLECTUAL PROPERTY AGENT LIMITED (CN)
北京路浩知识产权代理有限公司 (CN)
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