The present invention relates to a gas barrier film where a polyurethane resin layer and an inorganic layer are disposed in this order from a polyester resin film side on at least one surface of a polyester resin film, wherein the polyurethane resin constituting said polyurethane resin layer is a resin containing a skeleton represented by the following formula (1) and/or the following formula (2). The present invention provides a gas barrier film having excellent oxygen insulation and water vapor insulation.
申请公布号
US8449982(B2)
申请公布日期
2013.05.28
申请号
US201213557811
申请日期
2012.07.25
申请人
ARAI TAKASHI;TATEISHI YASUSHI;SUMI SAORI;HIROTA KUSATO;TORAY INDUSTRIES, INC.