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.
Patent No.:
Date of Patent:
Nov. 16, 2010
Filed:
Jun. 04, 2008
Jany Birgitta Maria Antens, Eindhoven, NL;
Denka Georgieva Hristova, Eindhoven, NL;
Cornelis Hamelink, Amsterdam, NL;
Guy Lode Magda Maria Verbist, Amsterdam, NL;
Jany Birgitta Maria Antens, Eindhoven, NL;
Denka Georgieva Hristova, Eindhoven, NL;
Cornelis Hamelink, Amsterdam, NL;
Guy Lode Magda Maria Verbist, Amsterdam, NL;
Shell Oil Company, Houston, TX (US);
Abstract
The invention provides modified sulphur comprising sulphur and a polysulphide-containing organosilane in an amount of in the range of from 0.3 to 25 wt % based on the weight of sulphur, in which modified sulphur the combined amount of sulphur and polysulphide-containing organosilane make up in the range of from 90 to 100 wt % of the obtained modified sulphur and wherein the polysulphide-containing organosilane is of the general molecular formula (1): (XSi)HCn-Sa-Cn'H(SiX′); wherein a is an integer in the range of from 2 to 8, X and X′ each are, independently, a hydrolysable group, n and n′ each are, independently, an integer in the range of from 1 to 4, and m and m′ each are, independently, an integer in the range of from 1 to (2n+1). The invention further provides a process for preparing such modified sulphur, a sulphur cement product comprising the modified sulphur and a process for preparing such.