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:
Sep. 17, 2013
Filed:
Jun. 04, 2008
Jochem Okke Boer, Amsterdam, NL;
Cornelis Hamelink, Amsterdam, NL;
Guy Lode Magda Maria Verbist, Amsterdam, NL;
Jochem Okke Boer, Amsterdam, NL;
Cornelis Hamelink, Amsterdam, NL;
Guy Lode Magda Maria Verbist, Amsterdam, NL;
Shell Oil Company, Houston, TX (US);
Abstract
The present invention provides a sulphur cement precomposition, comprising sulphur and at least a polysulphide-containing organosilane in an amount of at least 0.3 wt % based on the weight of the total composition, which polysulphide-containing organosilane is of the general molecular formula: (X3Si)mH(2n+l−m)Cn-Sa-Cn'H(2n′+l−m′)(SiX′3)m′ 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).