摘要
对2001~2013年间在中国申请的聚乳酸改性专利进行了检索统计,分别从专利申请时间及年度发展趋势、专利申请人构成及特征、专利分类分布、专利技术特征进行了分析。结果表明,2010~2013年为专利申请高峰期,占申请总数量的68.2%,改善力学性能的专利占申请总数量的51.8%,提高降解性能的专利占申请总数量的15.5%,改善热学性能的专利占申请总数量的12.7%,说明这些性能的改善是聚乳酸改性的主要方向。最后,提出了聚乳酸改性的发展方向。
A retrieval statistics was made for the patents of PLA modification,which were applied for in China during 2001~2013,together with analysed in terms of patent application time and annual development trends,applicant composition and characteristics,patent classification and distribution,and patent technical features. The period of 2010~2013 is the peak season of the patent application,making up 68.2%of the total application quantity,the patents on mechanical property improvement make up 51.8%of the total application quantity,the patents on degradation performance improvement make up 15.5%of the total application quantity,the patents on thermal performance improvement make up 12.7%of the total application quantity. Indicating that these improvements are the major orientation of the PLA modification. Finally,the future direction of development of PLA modification is proposed.
出处
《工程塑料应用》
CAS
CSCD
北大核心
2014年第11期138-142,共5页
Engineering Plastics Application
关键词
聚乳酸
改性
专利分析
polylactic acid
modification
patent analysis