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US 12,534,620 B2Granted
Asphalt composition
AssigneeKao Corporation
InventorsYusuke Akino, Norihiro Fukuri, Hirotaka Kashiwagi
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Abstract
The present invention provides an asphalt composition obtained by blending an asphalt and an addition polymerization-type polymer, the addition polymerization-type polymer having a hydroxyl value of 10 mgKOH/g or more and 60 mgKOH/g or less and having a weight average molecular weight (Mw) of 2,500 or more and 70,000 or less.
Claims16
An asphalt composition, comprising:
- an asphalt and an addition polymerization polymer,
- wherein
- the addition polymerization polymer is a polymer having a main chain constituted of a hydrocarbon group,
- the addition polymerization polymer has a hydroxyl value of 10 mgKOH/g or more and 60 mgKOH/g or less and a weight average molecular weight of 10,000 or more and 70,000 or less, and
- an amount of the asphalt in the asphalt composition is 60% by mass or more.
2 more elements
Dependencies are inferred from the claim text.