Asphalt modifier composition and asphalt composition comprising the same

摘要

Disclosed are block copolymer formed by block-copolymerizing vinyl aromatic hydrocarbon and conjugated diene compound and asphalt modifier composition including specific functional additives. Asphalt modifier composition according to the present invention is rapidly dissolved in asphalt without substantially lowering a softening point of asphalt, making it possible to form uniform asphalt composition and improve the productivity of the asphalt composition.

主权项

1. An asphalt modifier composition, comprising:
a block copolymer, which is formed by block-copolymerizing a vinyl aromatic hydrocarbon and a conjugated diene compound; and di(2-ethylhexyl)adipate as a functional additive, wherein the block copolymer is an amount of 90 to 99.9 wt % and the function additive is an amount of 0.1 to 10 wt %, and wherein the weight ratio of the vinyl aromatic block to the conjugated diene block is in the range of 5:95 to 50:50.