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Fully biodegradable packaging film and plastic film


【Patent Type】 Invention Patent 【Patent Name】 Fully biodegradable packaging film and Plastic Film 【Applicant】 Hu Jing 【Inventor】 Hu Jing; Feng Wei 【Main applicant address】 730070 Nanchang Road, Chengguan District, Lanzhou City, Gansu Province Room 602 [Application No.] 200410037609.2
【 Application Date 】 2004.04.27
[Verification notice number] 1569937
【 Validation announcement date 】 2005.01.26
【 Main Category 】 C08L3/02
[Category] C08L3/02 C08J5/18
【Sovereignty Items】 1. A completely biodegradable packaging film and plastic film, characterized in that its formula contains (by weight): starch 30-60% EAA 20-30% polycaprolactone 5-10% EVA1-3 % Polyethylene 0-3% compounded plasticizer 10-20% reinforcing agent 0.4% dispersant less than 0.4%.
[Instructions CD-ROM] D0504
[Abstract] The present invention relates to a completely biodegradable film and to a method of blow-molding using an electromagnetic dynamic extruder or a conventional blow-molding machine. Specifically, a ternary composite plasticizer system and a reinforcing agent that can be fully biodegradable using starch-polycaprolactone-EAA, glycerin and an EVA compatibilizer, and a polyester polyol cold resistant agent are used. After the blending reaction, the pellets are blown to form a film. It has the mechanical properties of ordinary polyethylene film, its temperature resistance, weather resistance and water resistance is better than the original Italian Meter-Bi. It can be completely degraded by microorganisms in about half a year. Its use range is close to that of polyethylene film. Fully degradable packaging materials such as shopping bags, garbage bags and other packaging or bedding films, and mulch films.

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