C - Chemistry – Metallurgy – 08 – G
Patent
C - Chemistry, Metallurgy
08
G
400/5318, 400/72
C08G 77/06 (2006.01) C08L 83/06 (2006.01)
Patent
CA 1250071
METHOD OF POLYMERISING OLIGOMERS OF POLYDIORGANOSILOXANE IN THE PRESENCE OF FILLER Abstract Oligomers of low molecular weight polydiorgano- siloxanes, polydiorganocyclosiloxanes, or mixtures are polymerized in the presence of acidic or neutral reinforcing fillers. Trifluoromethane sulfonic acid is used as the polymerization catalyst. The method can also include endblocked polydiorganosiloxane to control the molecular weight of the silicone polymer in the silicone polymer-filler produced. The method combines the oligomer and filler, heats to from about 70 to 150°C, adds catalyst, adjusts temperature, and polymerizes the mixture, then inactivates with a Lewis base such as calcined magnesium oxide. The non-creping silicone polymer-filler mixture which is the product of the method is usable as electrical insulation grease, or as a reinforced polymer mixture useful in producing silicone elastomers. The mixture can be mixed with curing agents to produce heat curable and moisture curable elastomeric compositions.
447033
Falender James R.
Saam John C.
Dow Corning Corporation
Gowling Lafleur Henderson Llp
LandOfFree
Method of polymerizing oligomers of polydiorganosiloxane in... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method of polymerizing oligomers of polydiorganosiloxane in..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of polymerizing oligomers of polydiorganosiloxane in... will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1257351