C - Chemistry – Metallurgy – 08 – F
Patent
C - Chemistry, Metallurgy
08
F
C08F 297/02 (2006.01) C08F 8/04 (2006.01)
Patent
CA 2095713
T 4916 A B S T R A C T POLYMERS HAVING STABLE ANHYDRIDE RINGS Polymers comprising anionically polymerized monomers such as butadiene or styrene and adjacent units of (1-methyl-1-alkyl)alkyl esters such as t-butylmethacrylate, as well as selectively hydrogenated derivatives thereof, are heated to at least 180 °C to convert the adjacent ester units to stable anhydride rings. DF2/T4916FF
Shell Canada Limited
Smart & Biggar
LandOfFree
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