Bitumen-polymer compositions for the preparation of road surface

Details Bitumen-polymer compositions for the preparation of road surface Bitumen-polymer compositions for the preparation of road surface

1983-11-14

1987-03-17

Lieberman, Allan M.

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

Synthetic resins

Processes of preparing a desired or intentional composition...

524 66, 404 75, C08L 9500, E01C 726

Patent

active

046508201

ABSTRACT:
The present invention provides a bitumen-polymer composition comprising 95 to 99% by weight of a bitumen and 1 to 5% by weight of a terpolymer having a melt index between 5 and 50 dg/min. The terpolymer comprises 88 to 98.7 mol % of units derived from ethylene; 1 to 10 mol % of units derived from at least one ester selected from the group consisting of alkyl acrylates and methacrylates, the alkyl group having from 1 to 6 carbon atoms; and 0.3 to 3 mol % of units derived from maleic anhydride. The bitumen-polymer composition is used in the preparation of road surface binders.

REFERENCES:
patent: 3249567 (1966-05-01), Vigneault
patent: 3531426 (1970-09-01), Shim et al.
patent: 3634293 (1972-01-01), Benitz
patent: 4425453 (1984-01-01), Hunter
patent: 4451598 (1984-05-01), Decroix

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