C - Chemistry – Metallurgy – 08 – J
Patent
C - Chemistry, Metallurgy
08
J
400/4801, 400/60
C08J 5/00 (2006.01) B29C 47/00 (2006.01) C08L 67/04 (2006.01)
Patent
CA 2029747
A biodegradable plastic composition is disclosed which includes a polycaprolactone and a poly-.beta.- hydroxybutyrate. Disclosed also is a biodegradable plastic shaped body formed of such a composition. The shaped body may be produced by melt-mixing a blend of a polycaprolactone, a poly-.beta.-hydroxybutyrate and a copolymerization catalyst to copolymerize a portion of the polycaprolactone with a portion of the poly-.beta.-hydroxy butyrate, thereby to obtain a caprolactone/.beta.-hydroxybutyric acid copolymer-containing melt, which is subsequently shaped into a desired form.
On divulgue une composition de plastique biodégradable qui comprend une polycaprolactone et un poly-bêta-hydroxybutyrate. On divulgue également un corps formé en plastique biodégradable formé à l'aide de cette composition. Le corps formé peut être produit par mélange à chaud d'un mélange d'une polycaprolactone, d'un poly-bêta-hydroxybutyrate et d'un catalyseur de copolymérisation pour copolymériser une partie de la polycaprolactone avec une partie du poly-bêta-hydroxybutyrate, pour ainsi obtenir un copolymère de caprolactone/acide bêta-hydroxybutyrique contenant le produit fondu, qui est ensuite formé pour obtenir la forme recherchée.
Iwamoto Akira
Takeda Kiyoshi
Tokiwa Yutaka
Director-General Of Agency Of Industrial Science And Technology
Jsp Corporation
Sim & Mcburney
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