C - Chemistry – Metallurgy – 08 – L
Patent
C - Chemistry, Metallurgy
08
L
C08L 23/04 (2006.01) C08L 3/00 (2006.01) C08L 3/02 (2006.01) C08L 23/06 (2006.01)
Patent
CA 2109660
ABSTRACT In the present invention, the lowering of physical properties is minimized by bonding matrix resin and starch chemically using a coupling agent in the presence of an organic acid catalyst, at the same time lowering of the production cost is achieved by simplyfing the process. In the prior arts, the problems associated with low physical properties caused by starch incorporation were approached only in terms of enhanced physical interacting strength between matrix resin and starch. The purposes of the present invention are to provide a biodegradable polyethylene composition chemically bonded with starch comprising 100 parts by weight of matrix resin, 5-400 parts by weight of biodegradable incorporating material, 0.01-10 parts by weight of coupling agent, 0.01-1.0 parts by weight of radical initiator, 0.01-5 parts by weight of Lewis acid catalyst, 0.01-10 parts by weight of autoxidizing agent and 0.01-10 parts by weight of plasticizer and to provide a process for preparing thereof. The biodegradability of the polyethylene composition prepared by the present invention was determined in addition with reclamation test and shown to be excellent at a content of more than 10 wt.% of starch.
Cho Won-Yung
Kim Yong-Wook
Yoo Yong-Deuk
Goudreau Gage Dubuc
Yukong Limited
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