Bituminous compositions

Details Bituminous compositions Bituminous compositions

1990-02-07

1990-11-27

Bleutge, John C.

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

Synthetic resins

Processes of preparing a desired or intentional composition...

524 68, 524 70, 524 71, C08L 5302, C08L 9500

Patent

active

049736159

ABSTRACT:
A bituminous composition comprising a blend of bitumen, a polyolefin and a thermoplastic elastomer containing at least two polymer blocks wherein one of said polymer blocks is a crystalline polymer block and one of said polymer blocks is an amorphous polymer block is provided.
The bituminous compositions of the invention have excellent low temperature flexibility and high temperature creep resistance properties and are particularly useful as a roof coating or waterproofing material or a road paving material.

REFERENCES:
patent: 3978014 (1976-08-01), van Beem et al.
patent: 4102849 (1978-07-01), Bouton et al.
patent: 4282127 (1981-08-01), Desgouilles
patent: 4361672 (1982-11-01), Agarwal et al.
patent: 4419469 (1983-12-01), Bohm et al.
patent: 4835199 (1989-05-01), Futamura et al.

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