C - Chemistry – Metallurgy – 08 – L
Patent
C - Chemistry, Metallurgy
08
L
400/1354
C08L 3/02 (2006.01) C08B 30/12 (2006.01) C08L 23/08 (2006.01) A61F 13/15 (2006.01)
Patent
CA 2028130
Formed articles comprising destructurized starch, an ethylene-acrylic acid copolymer and a product of the interaction of starch and ethylene-acrylic acid copolymer wherein the starch not bound to the copolymer is in the form of particles having sizes below 1 micron. The water content of such articles is lower than the one usually present in the starch. Said formed articles can also contain urea in an amount no higher than 30 % by weight and/or ammonia in an amount not higher than 0.5 % by weight. The process for obtaining such articles comprises the steps of extruding starch, an ethylene-acrylic acid copolymer and optionally water, urea and/or ammonia at a temperature ranging from 90 to 150°C, reducing the water content to values lower than 6 % by weight and injection molding or extrusion blowing the resulting composition.
Bastioli Catia
Bellotti Vittorio
Del Giudice Luciano
Del Tredici Gianfranco
Lombi Roberto
Macrae & Co.
Novamont S.p.a.
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