The present invention relates to; a coextrusion film comprising a substrate film comprising a first resin layer and a second resin layer having different melt viscosity; and a preparation method of a polymer film comprising a substrate film forming step comprising a coextrusion step for a first resin and a second resin having different melt viscosity.
본 발명은 상이한 용융 점도를 갖는 제1수지층 및 제2수지층을 포함한 기재 필름을 포함한 공압출 필름과, 상이한 용융 점도를 갖는 제1수지 및 제2수지를 공압출하는 단계를 포함한 기재 필름 형성 단계를 포함하는 고분자 필름의 제조 방법에 관한 것이다.
COEXTRUSION FILM AND PREPARATIOM METHOD OF POLYMER FILM
공압출 필름 및 고분자 필름의 제조 방법
2015-07-08
Patent
Elektronische Ressource
Koreanisch
IPC: | B32B LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM , Schichtkörper, d.h. aus Ebenen oder gewölbten Schichten, z.B. mit zell- oder wabenförmiger Form, aufgebaute Erzeugnisse / B29C Formen oder Verbinden von Kunststoffen , SHAPING OR JOINING OF PLASTICS / B60C VEHICLE TYRES , Fahrzeugreifen |
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