BLOCK COPOLYMER AND METHOD OF FORMING PATTERNS BY USING THE SAME
申请人:LEE Su Mi
公开号:US20120080404A1
公开(公告)日:2012-04-05
A method of forming patterns includes forming a layer composed of a ketene based random copolymer on a substrate, forming a block copolymer on the ketene based random copolymer layer and patterning the ketene based random copolymer layer by removing a part of the block copolymer and a portion of the ketene based random copolymer layer.
WATER-ABSORBING RESIN AND PREPARING METHOD THEREOF
申请人:SK GLOBAL CHEMICAL CO., LTD.
公开号:US20160220980A1
公开(公告)日:2016-08-04
Disclosed are a water-absorbing resin and a method of preparing the same, wherein absorbency under unload of the water-absorbing resin is 25 g/g or more, the absorbency under load is 20 g/g or more, and an increase in extractables at a high temperature represented by Equation 1 ranges from 1 or more but less than 3, thereby it is possible to solve a problem that gel-blocking of the water-absorbing resin is accelerated at a high temperature, and improve absorption rate and dry efficiency of the water-absorbing resin.