Bituminous compositions prepared from thermoplastic polyolefins

Details Bituminous compositions prepared from thermoplastic polyolefins Bituminous compositions prepared from thermoplastic polyolefins

1999-02-17

2000-12-05

Brunsman, David

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

Synthetic resins

Processes of preparing a desired or intentional composition...

524 70, C09D19500

Patent

active

061568279

ABSTRACT:
Bituminous compositions of the bitumen-polymer type, in homogenous phase, contain at least one bitumen base and are prepared from at least one polymer of the thermoplastic polyolefin type. These compositions have a thermoplastic polyolefin content of at least 1% by weight of which the crystallinity rate is greater than or equal to 30%, a melting temperature greater than or equal to 110.degree. C. and a penetrability at 25.degree. C. less than or equal to 300 tenths of a millimeter.

REFERENCES:
patent: 3395110 (1968-07-01), Crady, Jr.
patent: 5451621 (1995-09-01), Usmani et al.
patent: 5488078 (1996-01-01), Shutt et al.
patent: 5516817 (1996-05-01), Slusher et al.
patent: 5569516 (1996-10-01), Paeglis et al.

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