C - Chemistry – Metallurgy – 08 – L
Patent
C - Chemistry, Metallurgy
08
L
C08L 25/06 (2006.01) C08J 9/00 (2006.01) C08K 5/053 (2006.01) C08L 3/02 (2006.01)
Patent
CA 2217530
A biodegradeable foamed composite material comprising 35 - 65 parts w/w polystyrene, 30 - 50 parts w/w starch and 5 - 15 w/w of a cross-linking agent. The cross-linking agent is preferably glycerine, sorbic alcohol or mixtures thereof. The foamed material is used in the form of disposable knives, forks, spoons, plates, lunch boxes which are relatively rapidly biodegradable as to constitute environmentally friendly disposable articles.
Une matière-mousse composite et biodégradable comprend de 35 à 65 parties, en poids, de polystyrène, de 30 à 50 parties, en poids, d'amidon et de 5 à 15 parties, en poids, d'un agent de réticulation. L'agent de réticulation est, de préférence, de la glycérine, de l'alcool sorbique ou un mélange de ces composés. Cette matière-mousse est utilisée sous forme de couteaux, de fourchettes, de cuillères, d'assiettes ou de boîtes à lunch jetables, rapidement biodégradables, de manière à constituer des articles jetables écologiques.
Cai Ronggen
Hu Zhenlin
Li Mingde
Li Yuhao
Ma Hongfei
Shanghai Sanlin Degradeable Resin Products Company
Smith Lyons Llp
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