- 专利标题: Asphalt composition for road pavement
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申请号: US16071316申请日: 2017-01-18
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公开(公告)号: US10934434B2公开(公告)日: 2021-03-02
- 发明人: Agusti Bueno Perisé , Eiji Shirai
- 申请人: KAO CORPORATION , KAO CHEMICALS EUROPE S.L.
- 申请人地址: JP Tokyo; ES Barcelona
- 专利权人: KAO CORPORATION,KAO CHEMICALS EUROPE S.L.
- 当前专利权人: KAO CORPORATION,KAO CHEMICALS EUROPE S.L.
- 当前专利权人地址: JP Tokyo; ES Barcelona
- 代理机构: Birch, Stewart, Kolasch & Birch, LLP
- 优先权: EP16382021 20160120
- 国际申请: PCT/EP2017/050958 WO 20170118
- 国际公布: WO2017/125421 WO 20170727
- 主分类号: C08L95/00
- IPC分类号: C08L95/00 ; C08L67/02 ; E01C11/00 ; E01C7/18
摘要:
Asphalt composition for road pavement, excellent in drying strength, strength after immersion in water, and strength after immersion in petroleum, method for producing same, and road paving method. Composition comprises asphalt, polyester, and aggregate. Polyester has alcohol component-derived constituent unit containing ≥65 mol % bisphenol A/alkylene oxide adduct and carboxylic acid component-derived constituent unit containing ≥50 mol % terephthalic or isophthalic acid. Composition has softening point of 95°−130° C., hydroxyl group value of 20-50 mgKOH/g, and ratio of polyester resin of 5-50 parts by mass based on 100 parts by mass of the asphalt. Production method comprising mixing asphalt, the polyester, and aggregate at 130-200° C. for ≥30 seconds. Polyester resin is mixed in ratio of 5-50 parts by mass based on 100 parts by mass of asphalt. Road paving method comprises laying asphalt composition obtained by production method as set forth, thereby forming an asphalt paving material layer.
公开/授权文献
- US20200181409A1 ASPHALT COMPOSITION FOR ROAD PAVEMENT 公开/授权日:2020-06-11