公开(公告)号：US20160002486A1

公开(公告)日：2016-01-07

申请号：US14766807

申请日：2014-03-17

Applicant: BASF SE

Inventor： Andrea KUNTZ ,  Karl-Heinz SCHUMACHER ,  Christoph KIENER

IPC: C09D133/14 ,  B05D3/00

CPC classification number: C09D133/14 ,  B05D3/007 ,  C08F2/20 ,  C08F2/24 ,  C09J7/20 ,  C09J133/14 ,  C08F2220/1808 ,  C08F218/08 ,  C08F220/14 ,  C08F220/36

Abstract: A description is given of the use of a polymer dispersion for cold sealing, the polymer dispersion comprising a polymer in dispersion in water and having a glass transition temperature in the range from −20 to +10° C., said polymer being preparable by emulsion polymerization of radically polymerizable monomers in the presence of at least one polymeric protective colloid, and the polymer being formed to an extent of 0.05 to less than 1 wt % of a monomer M, selected from the group consisting of (meth)acrylate monomers having a substituent of the formula where X is CH2, O, NH or NR, and R is a C1 to C4 alkyl group.Descriptions are also given of a method for producing cold-sealed packaging, and of the packaging obtainable by said method.

Abstract translation: 给出了聚合物分散体用于冷密封的描述，聚合物分散体包含在水中分散的聚合物并且玻璃化转变温度在-20至+ 10℃的范围内，所述聚合物可由乳液制备 在至少一种聚合物保护胶体存在下聚合可自由基聚合的单体，并且该聚合物形成的量为单体M的0.05至小于1重量％，所述单体M选自（甲基）丙烯酸酯单体，其具有 下式的取代基，其中X是CH 2，O，NH或NR，R是C 1至C 4烷基。 还给出了用于生产冷封包装的方法以及通过所述方法可获得的包装的说明。

公开(公告)号：US20190016931A1

公开(公告)日：2019-01-17

申请号：US16069320

申请日：2017-01-10

Applicant: BASF SE

Inventor： Karl-Heinz SCHUMACHER ,  Christine TONHAUSER ,  Christoph KIENER ,  Peter PREISHUBER-PFLUEGL ,  Andrea KUNTZ

IPC: C09J133/10 ,  C09J133/08 ,  B32B37/12 ,  B32B7/12 ,  B32B27/36

Abstract: A description is given of the use of a one-component laminating adhesive for composite film lamination, and also of a method for composite film lamination. The laminating adhesive comprises an aqueous polymer dispersion preparable by radical emulsion polymerization of monomers comprising (a) at least 60 wt %, based on the total amount of monomers, of at least one monomer selected from the group consisting of C1 to C20 alkyl acrylates, C1 to C20 alkyl methacrylates, vinyl esters of carboxylic acids comprising up to 20 carbon atoms, vinylaromatics having up to 20 carbon atoms, vinyl halides, vinyl ethers of alcohols comprising 1 to 10 carbon atoms, aliphatic hydrocarbons having 2 to 8 carbon atoms and one or two double bonds, and mixtures of these monomers, and (b) at least 0.1 wt %, based on the total amount of monomers, of at least one monomer having at least one acid group, and (c) 0.1 to 5 wt %, based on the total amount of monomers, of at least one ethylenically unsaturated compound having at least one functional group selected from keto groups and aldehyde groups; where the aqueous polymer dispersion comprises at least one compound A which has at least two functional groups that are able to enter into a crosslinking reaction with keto groups or with aldehyde groups; where the molar ratio of the groups of the compound A that are reactive with keto groups or with aldehyde groups to the keto and aldehyde groups of the monomer (b) is from 1:10 to 2:1; and where, in the composite film lamination, at least two films are bonded to one another with the laminating adhesive so firmly that the peel strength is 2.5 N/15 mm or more or that the films bonded to one another are partable only with destruction of at least one of the films. The composite films can be used for the packing of foods.

公开(公告)号：US20180094174A1

公开(公告)日：2018-04-05

申请号：US15563655

申请日：2016-04-08

Applicant: BASF SE

Inventor： Afsaneh NABIFAR ,  Karl-Heinz SCHUMACHER ,  Andrea KUNTZ ,  Christoph KIENER ,  Martin BEK

IPC: C09J133/12 ,  C08L25/04 ,  C08F2/22

CPC classification number: C09J133/12 ,  C08F2/22 ,  C08L25/00 ,  C08L25/04 ,  C08L31/00 ,  C08L2201/50 ,  C08L2201/52 ,  C08L2203/162 ,  C09J133/06 ,  C09J2201/606

Abstract: Described is an aqueous cold seal adhesive in the form of an aqueous polymer dispersion comprising a mixture of a first polymer and a second polymer, wherein the first polymer is an emulsion polymer prepared in the presence of a protective colloid and is composed to an extent of at least 60% by weight of principal monomers selected from the group consisting of C1 to C20 alkyl (meth)acrylates and has a glass transition temperature of less than 0° C.; and wherein the second polymer is an emulsion polymer prepared in the presence of a protective colloid and is composed to an extent of at least 60% by weight of principal monomers selected from the group consisting of vinylaromatics having up to 20 C atom, and has a glass transition temperature of at least 50° C. Also described are cold sealable coated polymer films coated with the aqueous cold seal adhesive and a method for producing a cold-sealed pack by applying the aqueous cold seal adhesive to a packaging substrate.

公开(公告)号：US20200270487A1

公开(公告)日：2020-08-27

申请号：US16649886

申请日：2018-09-28

Applicant: BASF SE

Inventor： Dirk WULFF ,  Holger KERN ,  Matthias GERST ,  Christoph KIENER

IPC: C09J7/35 ,  C09J7/38 ,  C09J7/29

Abstract: Described herein is a protection film comprising a polyolefin carrier material, a precoating of the polyolefin carrier material with a primer selected from polyurethane dispersions and a pressure-sensitive adhesive layer of a radiation-crosslinked hotmelt adhesive. A process for producing such protection films is also described.

公开(公告)号：US20210079272A1

公开(公告)日：2021-03-18

申请号：US16970486

申请日：2019-02-15

Applicant: BASF SE

Inventor： Christoph KIENER ,  Lars HECKHOFF ,  Peter PREISHUBER-PFLUEGL ,  Richard BOCIEK

IPC: C09J7/38 ,  C09J139/06 ,  C09J175/04 ,  C09J133/02 ,  C08L39/06

Abstract: Described is a process for producing adhesive-coated articles, wherein an aqueous dispersion adhesive composition comprising a dispersed adhesive polymer and a dissolved polyvinylpyrrolidone is applied at high web speed to a film substrate using a coating machine having at least one rotating roller and wherein the coated film substrate may optionally be bonded to a further substrate. Also described is the use of polyvinylpyrrolidone as a defoamer for aqueous dispersion adhesive compositions applied to a film substrate using a coating machine having a rapidly rotating roller.

公开(公告)号：US20190002743A1

公开(公告)日：2019-01-03

申请号：US16063008

申请日：2016-12-07

Applicant: BASF SE

Inventor： Christine TONHAUSER ,  Karl-Heinz SCHUMACHER ,  Georg LANGHAUSER ,  Sindy SCHUSTER ,  Christoph KIENER ,  Matthias ZORN

IPC: C09J133/08 ,  C08F220/18 ,  B32B7/12

Abstract: Described are aqueous polymer dispersions and a method for producing them. The polymer dispersions comprise polymer particles having an average particle diameter of greater than 200 nm, monomodal particle size distribution, and uniform glass transition temperature, and are prepared by radical emulsion polymerization of a monomer mixture comprising ethylenically unsaturated, radically polymerizable monomers, using a polymer seed, less than 0.8 part by weight of emulsifier, and without protective colloids. The monomer mixture consists of a) at least 60 wt % of at least one monomer selected from the group consisting of C1 to C20 alkyl acrylates, C1 to C20 alkyl methacrylates, vinyl esters of carboxylic acids containing up to 20 carbons, vinylaromatics having up to 20 carbons, ethylenically ensaturated nitriles, vinyl halides, vinyl ethers of alcohols containing 1 to 10 carbons, aliphatic hydrocarbons having 2 to 8 carbons and one or two double bonds, and mixtures of these monomers, b) at least 0.1 wt % of at least one monomer having at least one acid group; c) optionally further monomers, the acid groups of the monomers b) being wholly or partly neutralized during the emulsion polymerization. The aqueous polymer dispersions can be used as adhesives, more particularly for the production of composite films.