White Opaque Films With Improved Tensile And Barrier Properties

Ming Keung, Jay Kin (Inventor)

Research output: PatentPatent


Provided are multi-layered white opaque films composed of at least two skin layers, at least one tie layer, and at least one core layer. The at least two skin layers are each composed of one or more polyolefins. The at least one tie layer is composed of one or more hydrocarbon resins. The at least one core layer is composed of a blend of one or more polyolefins and one or more cavitating agents. The multi-layered white opaque films described herein exhibit improvements in light transmission, stiffness, and water vapor transmission rate. Moreover, these films were found to exhibit improved cavitation as tested by optical gauge and light transmission.

Patent family as of 31.12.2021
AT499209 E 20110315 AT20080834179T 20080812      
CN101784388 A 20100721 CN200880104392 20080812      
CN101784388 B 20140924 CN200880104392 20080812      
DE602008005168 D1 20110407 DE200860005168T 20080812      
EP2193025 A1 20100609 EP20080834179 20080812      
EP2193025 B1 20110223 EP20080834179 20080812      
US2009081474 AA 20090326 US20080190454 20080812      
WO09042299 A1 20090402 WO2008US72922 20080812

Link to current patent family on right 

Original languageEnglish
Patent numberEP2193025
IPCB32B 27/ 32 A I
Priority date12/08/08
Publication statusPublished - 9 Jun 2010
MoE publication typeH1 Granted patent


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