SBR COMPOSITE PARTICLE MODIFIED ASPHALT AND PREPARATION METHOD THEREOF

WIPO Patent Application WO/2018/148966

A1

The invention is directed to an SBR composite particle modified asphalt and a preparation method thereof. The SBR composite particle modified asphalt comprises the following components by weight percent: heavy traffic asphalt: 90-98, and modified composite particles: 2-10. The modified composite particles are obtained by Banbury mixing and granulating SBS, carbon black, SBR and calcium carbonate, wherein the ratio of the weight percentages of SBR/SBS is 70/10-50/30. The SBR composite particle modified asphalt prepared by the invention has the characteristics of high adhesive force, stable thermal storage and excellent high and low temperature performance. Particularly, it exhibits favorable ultraviolet aging in regions with low temperatures and high ultraviolet radiation, this quality being absent in SBS modified asphalt and matrix petroleum asphalt. Compared with traditional SBR modified asphalt production, the invention has the advantages of simple process route, low costs, and good stability of raw materials, and it is particularly suitable for promoting production in the Tibet region.

XU SITIAN (CN)
ZHOU WENTING (CN)
CHEN JIAGAN (CN)
ZHOU ZIWEI (CN)
WANG SHIFENG (CN)
TAO HONG (CN)
MA PIMING (CN)
DONG HAIYUN (CN)

PCT/CN2017/074136

August 23, 2018

February 20, 2017

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JIANGSU BAOLI INTERNATION INVEST LTD (CN)

C08L95/00; C08K3/04; C08K3/26; C08L53/02; C09D195/00

CN103613942A	2014-03-05
CN1597784A	2005-03-23
CN102219976A	2011-10-19
CN106243746A	2016-12-21
KR20160116360A	2016-10-10
KR100566066B1	2006-03-30

JIANGYIN YONGXING PATENT OFFICE (CN)

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