中国塑料 ›› 2025, Vol. 39 ›› Issue (11): 84-92.DOI: 10.19491/j.issn.1001-9278.2025.11.014

• 加工与应用 • 上一篇    下一篇

双向拉伸聚丙烯电容膜专利分析

王海(), 周文()   

  1. 国家知识产权局专利局专利审查协作北京中心,北京 100160
  • 收稿日期:2025-03-24 出版日期:2025-11-26 发布日期:2025-11-21
  • 作者简介:王海,wanghai_1@cnipa.gov.cn
    周文,zhouwen.ty@163.com
    第一联系人:(王 海、周 文并列第一作者)

A patent analysis of BOPP capacitor films

WANG Hai(), ZHOU Wen()   

  1. Patent Examination Cooperation Center of the Patent Office,China National Intellectual Property Administration,Beijing 100160,China
  • Received:2025-03-24 Online:2025-11-26 Published:2025-11-21

摘要:

以双向拉伸聚丙烯(BOPP)电容膜领域的全球专利数据为分析样本,从专利申请量、发展趋势、技术来源和分布地域、法律状态以及重点申请人的技术路线等多方面、多角度分析了国内外BOPP电容膜的专利布局情况,产业发展情况,重点分析了东丽公司在该领域的专利布局发展历程和专利保护策略,以期为国内企业的专利申请和保护策略提供参考。

关键词: 双向拉伸聚丙烯, 电容膜, 专利分析, 专利布局, 专利保护策略

Abstract:

This paper presents a statistical analysis of the research and development landscape for biaxially oriented polypropylene (BOPP) capacitor films. The study examines the number and trends in patent applications, the overall patent landscape, sources and geographical distribution of technologies, legal statuses, and technology development pathways. The analysis offers insights into the industrial development of BOPP capacitor films, with a specific emphasis on the evolution of Toray Industries’ patent portfolio and its strategic approaches to patent protection in this field.

Key words: bidirectionally stretched polypropylene, capacitor film, patent analysis, patent distribution, patent protection strategy

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