公开(公告)号：ZA9204110B

公开(公告)日：1993-02-24

申请号：ZA9204110

申请日：1992-06-05

Applicant: HOECHST AG

Inventor： SCHUHMANN DETLEF ERICH ,  DETLEF ERICH SCHUHMANN ,  MURSCHALL URSULA ,  URSULA MURSCHALL ,  PFEIFFER HERBERT ,  HERBERT PFEIFFER ,  SCHLOEGL GUNTER ,  GUNTER SCHLOEGL

IPC: B32B27/20 ,  B32B

CPC classification number: B32B27/08 ,  B32B27/20 ,  B32B27/32 ,  B32B2250/242 ,  B32B2307/518 ,  B32B2307/718 ,  B32B2307/72 ,  Y10S428/91 ,  Y10T428/1352 ,  Y10T428/249986 ,  Y10T428/25 ,  Y10T428/2826

公开(公告)号：ZA924110B

公开(公告)日：1993-02-24

申请号：ZA924110

申请日：1992-06-05

Applicant: HOECHST AG

Inventor： SCHUHMANN DETLEF ERICH ,  DETLEF ERICH SCHUHMANN ,  MURSCHALL URSULA ,  URSULA MURSCHALL ,  PFEIFFER HERBERT ,  HERBERT PFEIFFER ,  SCHLOEGL GUNTER ,  GUNTER SCHLOEGL

IPC: B32B27/18 ,  B32B27/20 ,  B32B27/32 ,  B65D65/40 ,  B32B

Abstract: A multi-layer white, biaxially oriented polypropylene film is described. The film has at least a three-layered structure and comprises: …… a base layer made of polypropylene polymers containing up to 2% by weight of calcium carbonate with an average particle size up to 2.0 mu m and 0 to 25% by weight of titanium dioxide, … an intermediate layer of propylene polymers containing 0 to 25% by weight of titanium dioxide based on the total weight of the intermediate layer, … and an outer layer of sealable raw material. …… The film according to the invention contains altogether at least 2% by weight of titanium dioxide in the base layer and/or in the intermediate layer.