摘要:
A filler reinforced composite comprising bitumen as a continuous phase and as reinforcement in the bitumen, fillers which have been coated with a chemically-modified bitumen prepared by reacting a bituminous material with a chromium complex.
摘要:
The inner side of an exterior wall of an existing building is insulated by installing floor-to-ceiling panels along the wall, the panels having glass windows where the wall has windows.
摘要:
Cationic chemically modified asphalts having utility for road construction, repair and maintenance as well as coating for various substrates, including cementitious substrates, glass and metal are provided. These asphalts are the product produced by reacting an alkenyl azabenzene, asphalt, a vinyl aromatic monomer and a rubbery polymer.
摘要:
Cationic chemically modified asphalts having utility for road construction, repair and maintenance, as well as a coating for various substrates including cementitious substrates, glass and metal are provided. These asphalts are obtained by reacting an acrylamide, optionally with a vinyl aromatic, with a prereacted product of asphalt, a rubber and a vinyl aromatic monomer.
摘要:
Blends of two chemically modified asphalts are provided. The first is the product produced by reacting asphalt with a vinyl aromatic monomer and an amine of an acyclic unsaturated hydrocarbon, and the second is the product produced by reacting asphalt with a vinyl aromatic monomer and a rubbery polymer. These asphalts are useful for road construction, repair and maintenance as well as a coating for various substrates including cementitious substrates, glass and metal.
摘要:
Chemically modified asphalt compositions prepared by reaction of asphalt with ammonia, a polyamine or an aromatic diamine. The chemically modified asphalt compositions of this invention are particularly well suited for use in the treatment of glass fibers as reinforcement for asphalt matrices.
摘要:
A chemically modified asphalt prepared by reacting an asphalt with a polymerizable vinyl monomer (e.g., styrene) and a rubbery polymer whereby the rubbery polymer is chemically integrated with the asphalt. The chemically modified asphalt can be, if desired, further cross linked by reaction with a cross linking agent such as a polycarboxylic acid, an organic isocyanate or an organic polyepoxide. The chemically modified asphalt compositions of the invention can be used in the treatment of glass fibers as well as in road paving applications and the like.
摘要:
A bitumen composition modified with an organo silane in which a bitumen such as asphalt is reacted with an organo silane containing ethylenic unsaturation or an organo silane containing at least one hydrogen atom bonded to the silicon atoms whereby the organo silanes react with ethylenic unsaturation of the bitumen to chemically bond the organo silane to the bitumen. Also included are bitumens which have been chemically modified by reaction with steam, air, ammonia or aliphatic amines which have been reacted with a silane containing a functional group reactive with the bitumen. Bitumen compositions of the invention are preferably used in the treatment of glass fibers for use as reinforcement in asphalt systems.
摘要:
The use of flake glass in road pavement and repair is disclosed. In particular, we disclose improvements in the formulations of asphalt aggregate wear surfaces, substrate layers and interface layers between the substrate and wear surfaces. In one embodiment we also employ an unsaturated monomer or an unsaturated elastomer.