公开(公告)号：WO2003068506A1

公开(公告)日：2003-08-21

申请号：PCT/BE2003/000020

申请日：2003-02-06

Applicant: AMCOR FLEXIBLES TRANSPAC ,  MALFAIT, Tony ,  BÖGELS, Eric ,  ROSSEAU, Patrick ,  VEYS, Luc

Inventor： MALFAIT, Tony ,  BÖGELS, Eric ,  ROSSEAU, Patrick ,  VEYS, Luc

IPC: B32B27/32

CPC classification number: B32B27/32 ,  B65D75/008 ,  B65D75/5855 ,  Y10T428/2826 ,  Y10T428/31938

Abstract: The present invention is related to a coextruded multilayer polyolefin film being heat sealable and peelable onto polypropylene based substrates of at least 3 layers, comprising at least a peelable top layer, at least an intermediary layer and at least a base layer, characterised in that at least one of the intermediate layers comprises an easy lowable low melting polymer with a melt flow index at least equal or higher than the melt flow index of the base layer, said easy flowable polymer representing at least 60% by weight of the total weight of said multilayer polymer film.

Abstract translation: 本发明涉及共挤出的多层聚烯烃膜，其可热封和可剥离至至少3层的基于聚丙烯的基材上，至少包括可剥离的顶层，至少中间层和至少一个基层，其特征在于， 中间层中的至少一个包括易熔化的低熔点聚合物，其熔体流动指数至少等于或高于基层的熔体流动指数，所述易流动聚合物代表所述基体层的总重量的至少60重量％ 多层聚合物膜。

公开(公告)号：WO2003043816A1

公开(公告)日：2003-05-30

申请号：PCT/EP2002/011902

申请日：2002-10-22

Applicant: AMCOR FLEXIBLES TRANSPAC ,  MALFAIT, Tony ,  ROSSEAU, Patrick ,  BÖGELS, Erik ,  VEYS, Luc

Inventor： MALFAIT, Tony ,  ROSSEAU, Patrick ,  BÖGELS, Erik ,  VEYS, Luc

IPC: B32B27/08

CPC classification number: B32B27/08 ,  B32B27/10 ,  B32B27/32 ,  B32B2323/04 ,  B32B2323/043 ,  B32B2323/046 ,  B32B2323/10 ,  B32B2327/06 ,  B32B2355/02 ,  B32B2377/00 ,  Y10T428/1352 ,  Y10T428/31743 ,  Y10T428/3175 ,  Y10T428/31797 ,  Y10T428/31895 ,  Y10T428/31909 ,  Y10T428/31917 ,  Y10T428/3192 ,  Y10T428/31928

Abstract: The present invention is related to a heat sealable coextruded multilayer packaging film peelable on a variety of substrates including polyethylene, polypropylene, polyester, polyvinyl chloride, polyamide, polyacrylonitrile and paper, comprising at least one peelable layer from a pre-compounded precursor formulation containing: - 50 to 80% by weight of an ethylene homo and/or copolymer, - 15 to 25% by weight of a styrene homo or/and copolymer, - 5 to 20% by weight of a thermoplastic elastomeric styrene-butadiene-styrene block copolymer, characterised in that the peel force in said peelable seal film produced by said pre-compounded precursor is modified by the presence in said precursor in the final extrusion step of 5 to 25, and preferably 10 to 20% by weight of homogeneously branched LLDPE and/or polybutene-1.

Abstract translation: 本发明涉及可剥离于包括聚乙烯，聚丙烯，聚酯，聚氯乙烯，聚酰胺，聚丙烯腈和纸张在内的各种基材上的可热封的共挤出多层包装膜，其包含至少一种可预先混合的前体制剂的可剥离层，其包含： -50-80％重量的乙烯均聚物和/或共聚物，-15-25％重量的苯乙烯均聚物或/和共聚物，5-20％重量的热塑弹性体苯乙烯 - 丁二烯 - 苯乙烯嵌段共聚物 其特征在于，由所述预混合前体制备的所述可剥离密封膜中的剥离力通过在最终挤出步骤中的所述前体中存在5至25，优选10至20重量％的均匀支化的LLDPE和 /或聚丁烯-1。

公开(公告)号：WO2003014219A1

公开(公告)日：2003-02-20

申请号：PCT/EP2002/007897

申请日：2002-07-16

Applicant: AMCOR FLEXIBLES TRANSPAC N.V. ,  BÖGELS, Erik ,  MALFAIT, Tony ,  ROSSEAU, Patrick ,  VEYS, Luc

Inventor： BÖGELS, Erik ,  MALFAIT, Tony ,  ROSSEAU, Patrick ,  VEYS, Luc

IPC: C08L23/10

CPC classification number: B32B27/08 ,  B32B7/06 ,  B32B27/32 ,  B32B2323/10 ,  B32B2398/20 ,  C08L23/10 ,  C08L23/16 ,  C08L53/00 ,  C08L2205/02 ,  C08L2207/02 ,  C08L2666/04 ,  C08L2666/24

Abstract: The invention is related to a film or a sheet material comprising a monolayer, called core layer, comprising at least a blend of 10 to 40 % of the total weight of a polypropylene random heterophasic block copolymer and 60 to 90 % of an heterophasic polypropylene block copolymer wherein the elongation in the said film is higher than 550 % in the machine direction and higher than 700 % in the cross direction.

Abstract translation: 本发明涉及一种膜或片状材料，其包含称为芯层的单层，至少包含聚丙烯无规多相嵌段共聚物总重量的10至40％与多相聚丙烯嵌段的60至90％的共混物 共聚物，其中所述膜中的伸长率在机器方向上高于550％，并且在横向上高于700％。