By a News Reporter-Staff News Editor at Politics & Government Week -- According to news reporting originating from Washington, D.C., by VerticalNews journalists, a patent application by the inventors HIGASHIKAWA, Eiichi (Tokyo, JP); NAGAHAMA, Masamitsu (Tokyo, JP); SATO, Akira (Tokyo, JP); TAKAHASHI, Masatoshi (Tokyo, JP), filed on February 27, 2018, was made available online on July 12, 2018.
The assignee for this patent application is Toppan Printing Co. Ltd.
Reporters obtained the following quote from the background information supplied by the inventors: "PTLs 1 to 6 disclose example techniques related to a decorative sheet in which an olefin based resin is used, which is drawing attention as an alternative decorative sheet to polyvinyl chloride decorative sheets.
"However, many of these decorative sheets comprise a transparent resin layer that lacks good scratch resistance, good post-processing resistance, and high transparency."
In addition to obtaining background information on this patent application, VerticalNews editors also obtained the inventors' summary information for this patent application: "The present invention has been made in view of the above points. An object of the present invention is to provide a decorative sheet comprising a transparent resin layer having good scratch resistance, good post-processing resistance, and high transparency, and a method of manufacturing the same.
"The inventors of the present invention conducted extensive research in order to solve the above-mentioned problems, and succeeded in making the average particle diameter of spherulites in the crystal part of the transparent olefin resin extremely small by adding, to a transparent olefin-based resin which is a main component of a transparent resin layer, nucleating agent vesicles which are vesicles prepared by the supercritical reverse phase evaporation method and having a single layer outer membrane containing a nucleating agent. Further, the inventors found that high transparency and good mechanical properties are exhibited by setting the Martens hardness of the transparent resin layer to 40 N/mm.sup.2 or higher, and devised the present invention.
"To achieve the above object, the decorative sheet according to one aspect of the present invention comprises at least a transparent resin layer formed by adding to a transparent olefin-based resin nucleating agent vesicles which are vesicles having a single layer outer membrane and containing a nucleating agent, and the Martens hardness of the transparent resin layer is 40 N/mm.sup.2 or higher.
"According to one aspect, the present invention provides a decorative sheet comprising a transparent resin layer having good scratch resistance, good post-processing resistance, and high transparency, and a method of manufacturing the same."
For more information, see this patent application: HIGASHIKAWA, Eiichi; NAGAHAMA, Masamitsu; SATO, Akira; TAKAHASHI, Masatoshi. Decorative Sheet and Method of Manufacturing the Same. Filed February 27, 2018 and posted July 12, 2018. Patent URL: http://appft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220180186135%22.PGNR.&OS=DN/20180186135&RS=DN/20180186135
Keywords for this news article include: Business, Toppan Printing Co. Ltd.
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