Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Scott Hacker0
Yonghong Ruan0
Steven L. Rotz0
Date of Patent
April 25, 2017
Patent Application Number
14019331
Date Filed
September 5, 2013
Patent Citations Received
Patent Primary Examiner
Patent abstract
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° C. as determined according to method ASTM D36 and the penetration of the composition is at least about 12 dmm at 25° C. as determined according to method ASTM D5. A method of making the same.
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