[12] Patent
[11] Patent No.: GC0008452  
[45] Date of Publishing the Grant of the Patent: 31/Aug /2018                52/2018  		 Number of the Decision to Grant the Patent: 2018/132462
Date of the Decision to Grant the Patent: 01/Aug/2018

[21] Application No.: GC 2014-27733

[22] Filing Date: 8/12/2014

[30] Priority:

[33] State [32] Priority date [31] Priority No.
USA
 		14/8/2013
 13/966,571

[72] Inventors: 1- AL-MEHTHEL, Mohammed ،2- AL-IDI, Saleh H.،3- PARVEZ, Mohammad Anwar،4- AL-ABDUL WAHHAB, Hamad I،5- HUSSEIN, Ibnelwaleed A.

[73] Owners: 1- SAUDI ARABIAN OIL COMPANY, 1 Eastern Avenue, 31311 , Dhahran , Saudi Arabia،2- King Fahd University of Petroleum and Minerals, P.O.Box 5041, Dhahran 31261, Saudi Arabia

[74] Agent: - Suleiman I. Al-Ammar Law Office

  

 

[51]IPC:
C08L 95/00
[56] Cited Documents:
-EP 2 055 745 A1 (REPSOL YPF SA [ES]) 06 May 2009
-HJ BECKEDAHL ET AL: Performance of crumb rubber modified binders and asphalts. 5TH INTERNATIONAL CONFERENCE BITUMINOUS MIXTURES AND PAVEMENTS., 01 January 2011
-Jc Nicholls: Review of Shell Thiopave sulphur-extended asphalt modifier, 1 January 2009
-WO 2011/104251 A1 (SHELL INT RESEARCH [NL]; CHUGHTAI MAJID JAMSHED [GB]; COLANGE JACQUES) 01 September 2011  
Examiner: Rami Al-Ghamdi

[54] SULFUR EXTENDED ASPHALT MODIFIED WITH CRUMB RUBBER FOR PAVING AND ROOFING
[57] Abstract: This invention relates to asphalt compositions. The invention provides a sulfur rubber asphalt binder composition that includes a base asphalt having a softening point, elemental sulfur, and a crumb rubber material. The crumb rubber material is combined with the base asphalt and the elemental sulfur to create the sulfur rubber asphalt binder composition. The crumb rubber material is present in the sulfur rubber asphalt binder in an amount effective to increase the softening point as compared to the softening point of the base asphalt.

 No. of claims: 18     No. of figures: 1


 


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