| 摘要 |
The invention concerns a biodegradable material comprising a matrix of latex , starch and polybetahydroxybutyrate and/or cellulose powder. This basic matri x can contain vegetable fillers, such as granulates of cereal grains or fibres of fibrous plants, for forming composite materials. The invention further concerns a method of preparing a biodegradable material, said method being characterized in that all the starting materials and the rubber in particula r are in the comminuted form. These comminuted, for example, substantially granulated starting materials are mixed and plasticized in a screw-type extruder or in an injection moulding machine. The plasticized mass can be injected directly into a mould or extruded in the form of a strand which is processed to form granulates to be used as injection moulding material.</SDO AB>
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