公开(公告)号：AU2012264927A1

公开(公告)日：2013-12-19

申请号：AU2012264927

申请日：2012-05-23

Applicant: BASF SE

Inventor： SEYFFER HERMANN ,  CIMPEANU CARMEN-ELENA ,  PIETSCH INES ,  WEISS AXEL ,  PREISHUBER-PFLUGL PETER ,  DIEHL HEIKO ,  BOTHE MARC ,  BUSCH FLORIAN

IPC: D21H19/16

Abstract: A description is given of paper or cardboard packaging made from recycled paper with mineral oil contamination, the packaging having a barrier layer which can be produced by applying an aqueous polymer dispersion comprising a copolymer which is preparable by emulsion polymerization of C1 to C4 alkyl (meth)acrylates, acid monomers, such as acrylic acid or methacrylic acid for example, 0‑20% by weight of acrylonitrile and 0% to 10% by weight of further monomers, the glass transition temperature of the copolymer being situated in the range from +10 to +45°C. The barrier layer may be located on one of the packaging surfaces, or may form one of a plurality of layers in a multi-layer packaging coating, or may be located as a coating on one side of an inner pouch situated within the packaging.

公开(公告)号：AU2010332945A1

公开(公告)日：2012-07-05

申请号：AU2010332945

申请日：2010-12-15

Applicant: BASF SE

Inventor： SCHUMACHER KARL-HEINZ ,  BUSCH FLORIAN ,  URBAN DIETER ,  BEYERS CORNELIS PETRUS

IPC: C08F220/18 ,  B65D75/58 ,  C08F2/22 ,  C09D133/08

Abstract: The invention relates to a recloseable packaging having a cold sealed adhesive layer that can be reclosed after the packaging is opened, wherein the adhesive layer comprises a polymer in emulsion made of at least 60 wt% of main monomers selected from the group made up of C1 to C20-alkyl(meth)acrylates, vinyl esters of up to 20 C atoms comprising carbolic acids, vinyl aromates having up to 20 C atoms, ethylene unsaturated nitriles, vinyl halogenides, vinyl ethers of alcohols comprising 1 to 10 C atoms, aliphatic hydrocarbons having 2 to 8 C atoms and one or two double bonds, and mixtures of said monomers, wherein the polymer in emulsion can be produced by means of emulsion polymerization of radically polymerizable monomers in the presence of at least one protective colloid. The invention further relates to aqueous polymer dispersions suitable for producing the packaging according to the invention, and to polymer films coated with the polymer dispersion.

公开(公告)号：AU2010332945B2

公开(公告)日：2013-08-15

申请号：AU2010332945

申请日：2010-12-15

Applicant: BASF SE

Inventor： SCHUMACHER KARL-HEINZ ,  BUSCH FLORIAN ,  URBAN DIETER ,  BEYERS CORNELIS PETRUS

IPC: C08F220/18 ,  B65D75/58 ,  C08F2/22 ,  C09D133/08

Abstract: The invention relates to a recloseable packaging having a cold sealed adhesive layer that can be reclosed after the packaging is opened, wherein the adhesive layer comprises a polymer in emulsion made of at least 60 wt% of main monomers selected from the group made up of C1 to C20-alkyl(meth)acrylates, vinyl esters of up to 20 C atoms comprising carbolic acids, vinyl aromates having up to 20 C atoms, ethylene unsaturated nitriles, vinyl halogenides, vinyl ethers of alcohols comprising 1 to 10 C atoms, aliphatic hydrocarbons having 2 to 8 C atoms and one or two double bonds, and mixtures of said monomers, wherein the polymer in emulsion can be produced by means of emulsion polymerization of radically polymerizable monomers in the presence of at least one protective colloid. The invention further relates to aqueous polymer dispersions suitable for producing the packaging according to the invention, and to polymer films coated with the polymer dispersion.

公开(公告)号：CA2835273A1

公开(公告)日：2012-12-06

申请号：CA2835273

申请日：2012-05-23

Applicant: BASF SE

Inventor： SEYFFER HERMANN ,  CIMPEANU CARMEN-ELENA ,  PIETSCH INES ,  WEISS AXEL ,  PREISHUBER-PFLUGL PETER ,  DIEHL HEIKO ,  BOTHE MARC ,  BUSCH FLORIAN

IPC: D21H19/16

Abstract: A description is given of paper or cardboard packaging made from recycled paper with mineral oil contamination, the packaging having a barrier layer which can be produced by applying an aqueous polymer dispersion comprising a copolymer which is preparable by emulsion polymerization of C1 to C4 alkyl (meth)acrylates, acid monomers, such as acrylic acid or methacrylic acid for example, 0-20% by weight of acrylonitrile and 0% to 10% by weight of further monomers, the glass transition temperature of the copolymer being situated in the range from +10 to +45°C. The barrier layer may be located on one of the packaging surfaces, or may form one of a plurality of layers in a multi-layer packaging coating, or may be located as a coating on one side of an inner pouch situated within the packaging.