C - Chemistry – Metallurgy – 01 – B
Patent
C - Chemistry, Metallurgy
01
B
C01B 17/02 (2006.01) C04B 28/36 (2006.01)
Patent
CA 2689963
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): (X3Si)m H(2n+1-m)Cn-Sa-Cn'H(2n+1- 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). 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. 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): (X3Si)m H(2n+1-m)Cn-Sa-Cn'H(2n'+1- 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). 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.
L'invention concerne du soufre modifié comprenant du soufre et, en quantité allant de 0,3 à 25 % en poids sur la base du poids du soufre, un organosilane contenant un groupe polysulfure, la quantité combinée du soufre et de l'organosilane contenant un groupe polysulfure dans ledit soufre modifié allant de 90 à 100 % en poids du soufre modifié obtenu et l'organosilane contenant un groupe polysulfure répondant à la formule moléculaire générale (1) : dans laquelle formule a est un nombre entier allant de 2 à 8, X et X' sont chacun indépendamment un groupe hydrolysable, n et n' sont chacun indépendamment un nombre entier allant de 1 à 4 et m et m' sont chacun indépendamment un nombre entier allant de 1 à 2n+1. L'invention concerne en outre un procédé servant à préparer un tel soufre modifié, un produit de type ciment au soufre comprenant le soufre modifié et un procédé servant à préparer celui-ci.
Antens Jany Birgitta Maria
Hamelink Cornelis
Hristova Denka Georgieva
Verbist Guy Lode Magda Maria
Ogilvy Renault Llp/s.e.n.c.r.l.,s.r.l.
Shell Internationale Research Maatschappij B.v.
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