Patent ID: 9493633
Filing Date: 2016-11-15
CPC Classification: C08K,C08L,Y02A

Claim Text:
1. An asphalt binder composition comprising bitumen and an effective amount of a performance modifier, wherein said performance modifier comprises a blend of a first fatty bisamide wax of the structure where each R is independently selected from a saturated or unsaturated, optionally substituted predominantly linear alkyl group having from 11 to 23 carbon atoms, and n is an integer of 2 to 6, and the second fatty bisamide wax of the structure where R′ is a unsaturated or saturated, optionally substituted long-chain, branched alkyl group having from 11 to 23 carbon atoms, and n is an integer of 2 to 6, wherein 5-50% of the alkyl groups of the bisamide waxes are branched.