摘要:
A process for preparing a modified asphalt binder composition, the process comprising mixing asphalt, an unsaturated polymer, and phosphorus pentasulfide to form a modified asphalt composition.
摘要:
A process for preparing a modified asphalt binder composition, the process comprising mixing asphalt, an unsaturated polymer, and phosphorus pentasulfide to form a modified asphalt composition.
摘要:
A method for inhibiting agglomeration of a block copolymer is presented, the method including coupling a plurality of block copolymer segments with a degradable coupling agent and thereafter drying the coupled block copolymer.
摘要:
A modified asphalt composition comprising a naphthenic asphalt, and a high-vinyl block copolymer is presented. The modified asphalt composition is prepared by combining a naphthenic asphalt and a high-vinyl block copolymer. Further an asphalt concrete is presented, such concrete comprises an asphalt, a functionalized block copolymer, and a siliceous aggregate. A diblock copolymer is presented, such copolymer comprises a vinyl block comprising conjugated vinyl aromatic units, a diene block comprising conjugated diene units and substantially devoid of a tapered block section between the vinyl block and the diene block wherein the diblock copolymer comprises a vinyl content of at least about 20%, and a molecular weight of at least about 50,000.
摘要:
The inventive composition includes a block copolymer which includes four blocks and has the following block arrangement: B-S-B-S. The two polymer blocks B comprise conjugated diene monomer constitutional units; and the two polymer blocks S comprise vinyl aromatic hydrocarbon monomer constitutional units. The invention also includes methods of making such inventive compositions as well as asphalt compositions and/or thermoplastic elastomers which include such block copolymer.