C - Chemistry – Metallurgy – 07 – C
Patent
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.
523245
Caporiccio Gerardo
de Iorio Pio
Marchionni Giuseppe
Tasca Adriana
Viola Gian Tommaso
Montedison S.p.a.
Robic
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