Extrusion isolation of blends of rubber and asphalt

Details Extrusion isolation of blends of rubber and asphalt Extrusion isolation of blends of rubber and asphalt

1990-09-25

1991-06-18

Lieberman, Allan M.

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

Synthetic resins

Processes of preparing a desired or intentional composition...

523339, 524 59, 524 71, 528502, 528936, C08J 320, C08L 9500

Patent

active

050250442

ABSTRACT:
Blends of asphalt emulsions or melts and aqueous elastomeric latices are prepared using a screw type extruder adapted to provide sufficient back pressure within the screw flights of the extruder to express the water from the blend through a vent provided in the extruder.

REFERENCES:
patent: 4081582 (1978-03-01), Blumel et al.
patent: 4103074 (1978-07-01), Hertel et al.
patent: 4136251 (1979-01-01), Bice et al.
patent: 4299952 (1981-11-01), Pingel et al.
patent: 4621108 (1986-11-01), Burris
patent: 4778852 (1988-10-01), Futamura

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