The purpose of this paper is to understand the structure and characteristics of bioplastic knowledge flows between organisations and the technology in the automobile field. However, the existing network analysis method has the limitation in that it can only analyse the structural characteristics and major actors of the knowledge network. In order to overcome these limitations, we apply the bow-tie model. In particular, we select patent citation information from the global automobile companies Hyundai and Toyota, which have set environmental sustainability as a corporate management priority. The results suggest that these automobile companies have a virtuous circle in bioplastic technology. They internalise outside knowledge through the strategic collaboration and then disseminate this knowledge. We also find that there are companies that play an important role in the flow of knowledge. The methodologies used in this paper can gainfully be applied to the analysis of knowledge flow in other fields.

中文翻译：

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分析汽车行业中生物塑料知识网络的结构

本文的目的是了解汽车领域组织与技术之间的生物塑性知识流的结构和特征。但是，现有的网络分析方法的局限性在于只能分析知识网络的结构特征和主要参与者。为了克服这些限制，我们应用了领结模型。特别是，我们从全球汽车公司现代和丰田公司中选择专利引用信息，这些公司将环境可持续性作为公司管理的重点。结果表明，这些汽车公司在生物塑料技术方面具有良性循环。他们通过战略合作将外部知识内部化，然后传播这些知识。我们还发现，有些公司在知识流中起着重要作用。本文所使用的方法可以有效地应用于其他领域的知识流分析。