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|Title:||Liquid Crystalline Polymers: A Review of Their Patents|
|Authors:||Pillai, C K S|
|Abstract:||Liquid Crystalline polymers (LCPs) cover a field of emerging frontier area materials having great commercial potential. Patents form a large part of their intellectual protection. The review deals with the potential features and growth of the patents flied mainly in the area of the LCPs. The first patents on LCPs are, however, on polyaramides (known by trade name Kevlar®) issued to Du Pont during the period 1962-1977. The publications on this polymer appeared only from 1977 onwards. Patents on a number of LCPs began appearing during this time. A number of firms utilized these patents for commercialization of the polymers. Only 12-15 patents were involved in utilization of patents in commercialization of the products. The later period has, however, witnessed a proliferation of patents to the tune of about 60-65 numbers mainly on modification brought about on structural aspects. Most of the patents have been filed in USA with Germany following second with other countries having only a few number of patents to their credit. In the area of commercialization, USA is leading with Hoechst-Celanese toping the list. In this paper an attempt has been made to review the entire patent literature on LCPs.|
|ISSN:||0975-1076 (Online); 0971-7544 (Print)|
|Appears in Collections:||JIPR Vol.04(5) [September 1999]|
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