公开(公告)号：CA2857715A1

公开(公告)日：2013-06-13

申请号：CA2857715

申请日：2012-12-03

Applicant: BASF SE

Inventor： SEYFFER HERMANN ,  CIMPEANU CARMEN-ELENA ,  DIEHL HEIKO ,  MIJOLOVIC DARIJO ,  VAN MEER ANDRE ,  VAN DELFT JAN ,  VAN SLUIJS CHRISTOF

IPC: D21H19/16 ,  C08F2/22 ,  D21H19/12 ,  D21H19/20 ,  D21H19/52 ,  D21H19/54

Abstract: Described is paper or cardboard packaging produced from mineral oil contaminated, (e.g., recycled) paper, wherein the packaging includes a barrier layer obtainable by applying an aqueous polymer dispersion comprising a copolymer obtainable by emulsion polymerization of C1-C4 alkyl (meth)acrylates, acid monomers, e.g., acrylic acid or methacrylic acid, 0-20 wt% of acrylonitrile and 0 to 10 wt% of further monomers in an aqueous medium in the presence of a carbohydrate compound, preferably in the form of a degraded starch, wherein the glass transition temperature of the copolymer is in the range from +10 to +45°C. The barrier layer may be situated on one of the surfaces of the packaging or form one of multiple layers of a multilayered packaging coating or be situated as a coating on one side of an inner bag situated within the packaging.