Asphalt/O-modified polyethylene

Details Asphalt/O-modified polyethylene Asphalt/O-modified polyethylene

1992-09-08

1994-04-12

Michl, Paul R.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Processes of preparing a desired or intentional composition...

524 68, 524 69, 524 70, 524 71, C08L 9500, C08L 2304

Patent

active

053026381

ABSTRACT:
An asphalt blend used for paving is described. The blend contains polyethylene which has been modified by shearing action in the presence of an O-containing gas (such as oxygen or ozone). The blend has improved viscosity at high temperatures and reduced stiffness at low temperatures. A paving mix prepared using the asphalt blend has an improved Marshall Test Value (ASTM DI559), indicating that the paving mix should have a reduced tendency to become rutted under the load of traffic.

REFERENCES:
patent: 2871212 (1959-01-01), Thayer
patent: 4328147 (1982-05-01), Chang et al.
patent: 4382989 (1983-05-01), Chang et al.
patent: 4497921 (1985-02-01), Chang et al.
patent: 4863233 (1989-09-01), Moran

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