C - Chemistry – Metallurgy – 08 – J
Patent
C - Chemistry, Metallurgy
08
J
C08J 11/16 (2006.01) C08G 63/91 (2006.01) C08L 67/04 (2006.01)
Patent
CA 2423601
A method of disposing of a biodegradable plastic comprises the step of exposing the biodegradable plastic to a hot alkaline solution. The biodegradable plastic is a polyhydroxyalkanoate copolymer comprising two randomly repeating monomer units wherein the first randomly repeating monomer unit has the structure: wherein R1 is H or a C1-2 alkyl, and n is 1 or 2; and the second randomly repeating monomer unit has the structure: wherein R2 is a C3-19 alkyl or a C3-19 alkenyl. At least 50% of the randomly repeating monomer units have the structure of the first randomly repeating monomer unit.
L'invention concerne un procédé d'élimination d'un plastique biodégradable, qui consiste à exposer le plastique biodégradable à une solution alcaline chaude. Le plastique biodégradable est un copolymère polyhydroxyalkanoate comprenant deux unités monomères à répétition aléatoire, la première unité étant de structure (i) où R1 représente H ou un alkyle C¿1-2? et n est 1 ou 2 et la seconde unité étant de structure (ii) où R2 représente un alkyle C¿3-19? ou un alcényle C¿3-19?. Au moins 50 % des unités monomères à répétition aléatoire possèdent la structure de la première unité monomère.
Dimock Stratton Llp
The Procter & Gamble Company
LandOfFree
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