C - Chemistry – Metallurgy – 07 – D
Patent
C - Chemistry, Metallurgy
07
D
134/39, 260/364.
C07D 307/60 (2006.01) C02F 5/10 (2006.01) C07C 57/38 (2006.01) C08F 22/06 (2006.01)
Patent
CA 2009850
Polymaleic anhydride having a weight average molecular weight by gel permeation chromatography of between 450 and 800 and a polydispersivity of between 1.0 and 1.15 is produced by polymerising malefic anhydride, using a peroxide initiator in an amount not greater than 10 % by weight of the anhydride, in a dilute solution in o-xylene or a substituted o-xylene.
Macquarrie Duncan James
Rideout Jan
Fetherstonhaugh & Co.
Great Lakes Chemical Corporation
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