Process for preparing regulated molecular weight...

Details Process for preparing regulated molecular weight... Process for preparing regulated molecular weight...

C - Chemistry, Metallurgy

07

C

402/370, 260/467

C07C 43/12 (2006.01) C08G 65/00 (2006.01) C08G 65/323 (2006.01)

Patent

CA 1305494

T. 3466 + T. 3470 "PROCESS FOR PREPARING REGULATED MOLECULAR WEIGHT PERFLUORO- POLYETHERS HAVING NEUTRAL AND FUNCTIONAL END GROUPS" ABSTRACT OF DISCLOSURE A process for the dissociation of high molecular weight perfluoropolyethers to obtain low molecular weight perfluoropo- lyethers which comprises treating a perfluoropolyether with 0.1 - 10% by weight of a catalyst consisting of Ti, Cr, Mn, Fe, Co, Ni, V, Cu, Mo, Sn, Sb, Zr, Zn oxides at temperatures comprised between 150° and 380°C.

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