NEC Corp. and Unitika Ltd. said Monday an environmentally friendly bioplastic they have jointly developed will be used in NTT DoCoMo Inc. cell phones.

The plastic, which is made with polylactic acid derived from corn, is reinforced with the fiber of another plant called kenaf, which absorbs a great deal of carbon dioxide in the air to improve its heat resistance, which makes it possible to use the material in cell phones.

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