natural gas and water, which are involved in the manufacturing of biopolymers and
these were selected from GaBi LCI databases. PLLA used in the blend, originally
comes from Thailand, whereas PDLA comes from Spain even though both of the
raw materials are produced and supplied by the same company. The two polymers
along with the additives (from different companies) are then transported to the
supplier site and finally to Germany, where they are subjected to extrusion, granulation and crystallization. Primary inventory data were obtained on-site for the
production and processing phases, in co-operation with the industrial partners.
Fig. 2 System boundaries of the product system—computer mouse
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