Honeywell International Inc.

Steven L Rotz

Scott Martin Hacker

Yonghong Ruan

A non-blown roofing grade bitumen composition comprising bitumen feedstock, polyolefin having a molecular weight of from about 800 to about 50,000 g/mol, and optionally one or more additives, wherein the softening point of the composition is above 70&#xb0; C. as determined according to method ASTM D36 and the penetration of the composition is at least about 12 dmm at 25&#xb0; C. as determined according to method ASTM D5. A method of making the same.

Bitumen compositions and methods of making

An asphalt paving material comprises an asphalt binder present in an amount of from about 3 to about 8 weight percent of the asphalt paving material. The asphalt binder comprises base asphalt and oxidized polyolefin that is present in an amount of from about 0.25 to about 10 weight percent of the base asphalt. Aggregate is present in an amount of about 92 to about 97 weight percent of the asphalt paving material. The oxidized polyolefin effectively adheres the asphalt binder to the aggregate so as to resist stripping of the asphalt binder from the aggregate caused by moisture.

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Randolph, NJ, United States of America

Steven L Rotz