C - Chemistry – Metallurgy – 07 – F
Patent
C - Chemistry, Metallurgy
07
F
260/442
C07F 7/18 (2006.01) C07F 7/08 (2006.01)
Patent
CA 2018131
Organosiloxanes (1) of the general formula R14-nSi(OSiR3)n, in which R is the same or different and represents a hydrogen atom or a monovalent hydrocarbon radical having from 1 to 18 carbon atom(s) per radical or a substituted monovalent hydrocarbon radical having from 1 to 18 carbon atom(s) per radical, R1 represents R or a chlorine atom, and n is 3 or 4, are prepared by reacting organodisiloxanes (2) of the general formula (R3Si)2O, with chlorosilanes (3) of the general formula R4-nSiC1n, in which R and n are the same as above, in the presence of phosphonitrile chlorides (4) and cocatalysts (5), in which the cocatalysts (5) are used concomitantly with the phosphonitrile chlorides (4) and are selected from the group consisting of amides of the general formula X-C(O)-R2, in which R2 is the same or different and represents a hydrogen atom or a monovalent hydrocarbon radical having from 1 to 8 carbon atom(s) per radical or a substituted monovalent hydrocarbon radical having from 1 to 8 carbon atom(s) per ( 2 ) radical, and X represents a radical of the formula R22N- or Image , where R2 is the same as above, R3 represents a divalent hydrocarbon radical having from 5 to 7 carbon atoms per radical, urea or urea derivatives of the general formula X-C(O)-X, where X is the same as above and cyanuric acid.
Doskocil Walter
Muller Johann
Staiger Gerhard
Bereskin & Parr Llp/s.e.n.c.r.l.,s.r.l.
Wacker-Chemie G.m.b.h.
LandOfFree
Process for preparing organosiloxanes does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Process for preparing organosiloxanes, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for preparing organosiloxanes will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1524179