Mineral oils: processes and products – Asphalts – tars – pitches and resins; making – treating and... – Chemical modification of asphalt – tar – pitch or resin
Patent
1994-12-30
1997-05-27
Myers, Helane
Mineral oils: processes and products
Asphalts, tars, pitches and resins; making, treating and...
Chemical modification of asphalt, tar, pitch or resin
208 39, 208 22, 208 23, C10C 300, C10C 302
Patent
active
056328842
ABSTRACT:
A modified or bridged asphalt composition. The composition can be obtained by treating at least one asphalt base with an acid-derived compound having at least two functional groups capable, respectively, of being grafted onto one or more sites located on two or more different aromatic entities of the asphalt base, so as to link said entities by bridging.
REFERENCES:
patent: 3287296 (1966-11-01), Wittner
patent: 4011184 (1977-03-01), van Reijendam et al.
patent: 5428085 (1995-06-01), Burel et al.
Fixari Bernard
Jamois Didier
Jolivet Yannick
Le Perchec Pierre
Myers Helane
Safford, Esq. A. Thomas S.
Total Raffinage Distribution , S.A.
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