Compatible asphalt-polymer blends
AssigneeThe Dow Chemical Company
InventorWilliam A. Gros
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Abstract
The invention is a process for the preparation of storage stable asphalt-polymer blends, comprising: a. contacting sulfur with asphalt; and b. contacting a polymer with the sulfur-asphalt mixture under conditions such that a compatible and homogeneous polymer-asphalt blend is formed. The process of the invention allows the preparation of compatible asphalt-polymer blends that are more stable while utilizing a more cost efficient, faster process and still maintaining the desired physical properties of good weatherability and creep resistance.
Claims12
A process for the preparation of a compatible polymer-asphalt blend, comprising:
- a. contacting sulfur with asphalt;
- and
- b. contacting a polymer with the sulfur-asphalt mixture under conditions such that a compatible and homogeneous polymer-asphalt blend is formed.
Dependencies are inferred from the claim text.