Patent ID: 7968628
Filing Date: 2011-06-28
Classification: C08K,C08L

Abstract:
1. A modified asphalt binder composition, comprising: a. about 60% by weight to about 98.9% by weight asphalt binder material; b. about 0.1% by weight to about 30% by weight crumb rubber; c. about 0.05% by weight to about 5% by weight of at least one acid selected from the group consisting of phosphoric acid, polyphosphoric acid, sulfuric acid at more than 90% wt, boric acid, adipic acid, citric acid, oxalic acid, tartaric acid, maleic acid, valeric acid, succinic acid, fumaric acid, glutamic acid, phtalic acid, acetic acid, and combinations thereof; and d. about 0.01% by weight to about 5% by weight of a cross-linking agent.