Title: Rubber pitch modifier and its preparing method
Application Number: 99108716 Application Date: 1999.07.09
Publication Number: 1280144 Publication Date: 2001.01.17
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: C08L21/00,C08L95/00,C10C3/00
Applicant(s) Name: Shanxi Coal Chemistry Inst., Chinese Academy of Sc Address: 030010
Inventor(s) Name: Yang Jianli, Zhang Haohong
Attorney & Agent: wei shuwei
Abstract:
     Rubber asphalt modifier is prepared with waste rubber bits and residual oil Materials including waste rubber 50-85 wt% and residual oil 15-50 wt% are reacted at 250-300 deg.C inside a reactor for 6-12 hr and the product is cooled in air to obtain the modifier. The raw materials for the modifier and discards, so that the modifier is low in cost and power-saving. The modifier is added asphalt to improve its quality.
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