The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Jan. 29, 2013

Filed:

Jul. 30, 2010
Applicants:

Majid Jamshed Chughtai, Chester, GB;

Helen Jayne Davies, Frodsham, GB;

Richard Walter May, Wichita, KS (US);

David Strickland, Manchester, GB;

Inventors:

Majid Jamshed Chughtai, Chester, GB;

Helen Jayne Davies, Frodsham, GB;

Richard Walter May, Wichita, KS (US);

David Strickland, Manchester, GB;

Assignee:

Shell Oil Company, Houston, TX (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08L 95/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

A method of making a sulfur-extended asphalt mixture with a minimum of hydrogen sulfide gas release into the atmosphere by using sulfur granules with specific physical properties and which are made by successively coating a starting sulfur seed particle with liquid sulfur that is solidified between coatings to thereby build up the a sulfur particle of a desired size. The sulfur granules are used to in the preparation of a sulfur, bitumen and aggregate mixture to provide the sulfur-extended asphalt.


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