Bitumenous compositions

Details Bitumenous compositions Bitumenous compositions

1985-04-09

1987-04-21

Bleutge, John C.

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

Synthetic resins

Processes of preparing a desired or intentional composition...

C08J 304, C08L 2306, C08L 2312

Patent

active

046597590

ABSTRACT:
Bitumen modified with a modifier comprising a defined elastomeric component and a polyolefin component containing polyethylene and polypropylene has improved high temperatures and low temperature properties which make it especially suitable for roofing applications. The elastomeric component is an ethylene propylene copolymer having a broad compositional distribution with regard to its ethylene content.

REFERENCES:
patent: 3669918 (1972-06-01), Raley, Jr.
patent: 3853799 (1974-12-01), Behling et al.
patent: 4100414 (1978-08-01), Lindsay et al.
patent: 4314921 (1982-02-01), Biegenzein
patent: 4409345 (1983-10-01), Moteki et al.

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