Kratz, Quintos & Hanson, LLP
Method of melt kneading, extrudate, and transparent resin material
It is an object of the present invention to obtain an optically transparent nano-dispersed polymer blend extrudate and a transparent resin having a microscopic dispersion structure in which incompatible polymer blend is melted and kneaded, one of resins is formed into a matrix, a size of dispersed phase of the other resin is controlled to 300 nm or less, more preferably 100 nm or less. Extra additive such as a compatibilizer is not added. When the incompatible polymer blend is melted and kneaded using a high shearing and forming apparatus having an inner feedback type screw under a condition that the screw rotation speed is 600 rpm to 3000 rpm, the rotation speed of the inner feedback type screw is increased, the kneading time is set under constant rotation speed, the high shearing forming condition is adjusted, and a structure in which a size of dispersed phase is controlled to 300 nm or less, more preferably 100 nm or less is formed.
National Institute of Advanced Industrial Science and Technology
C B B C B B B B B B C B C Y B C B B B B B B B B C B B Y B B B B B
C08L B29L B29C C08J B29C B29C B29C B29C B29C B29C C08L B29B C08L Y10S B29L C08J B29C B29C B29B B29C B29C B29C B29C B29C C08J B29C B29C Y10S B29C B29C B29L B29C B29C
inventional additional additional additional additional additional inventional inventional additional inventional inventional inventional additional additional additional additional additional additional inventional additional inventional additional additional inventional inventional additional inventional additional inventional additional additional additional inventional
Hiroshi Yongjin
Shimizu Li