B - Operations – Transporting – 29 – H
Patent
B - Operations, Transporting
29
H
117/46.8
B29H 1/10 (1980.01) B29H 19/06 (1980.01)
Patent
CA 1100826
ABSTRACT OF THE DISCLOSURE Pre-stressed polyethylene foil is shredded mechanic- ally in a closed vessel, whereby it is heated until it shrinks and its surface becomes tacky. When latex is sprayed into the vessel, a thin rubber layer covers each foil fragment and is thermally welded to the polymer surface. The rubber layer traps pockets of aqueous latex in voids of the shrunken foil. The weight and bulk of the resulting material are much greater than the corresponding properties of its rubber content so that precisely measured amounts of rubber may be dispersed quickly and uniformly in hot asphalt for improving the pro- perties of a road surface made from the asphalt mixture. The water content of the rubber-coated plastic fragments improves the working properties of the asphalt mixture.
282691
Haberl-Schicker Paul
Kirby Eades Gale Baker
LandOfFree
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