Henkel Ag & Company, Kgaa

Henkel IP Holding Gmbh

Roberto Pela

Hans-Georg Kinzelmann

Ligang Zhao

Yongxia Wang

Ciaran Mcardle

Dennis Bankmann

Nils Bongartz

Thomas Kamm

Eva Maria Alcazar

Maria Merce Bertomeu

Jun Liu

Julen De Mendizabal Zalaikin

Weifeng Dai

Elisabeth Torres Cano

Sandra Niembro

Vincent Leon

Maria Mercé Arasa Bertomeu

Eva María Alcazár

The present invention relates to a polyurethane laminating adhesives, methods for producing a multilayer laminate by laminating at least two films with a polyurethane laminating adhesive, and multilayer laminates obtainable by these methods wherein the polyurethane laminating adhesive comprises an NCO-terminated polyurethane prepolymer obtainable by reacting a polyol mixture comprising: 0.1 to 20.0 wt % relative to the total weight of the polyol mixture of at least one polybutadiene polyol; and 5.0 to 99.9 wt % relative to the total weight of the polyol mixture of at least one polyether polyol, wherein the at least one polyether polyol comprises at least one polyether polyol with a number average molecular weight Min the range of &#x3e;1000 g/mol to 10000 g/mol; with at least one polyisocyanate, wherein the at least one polyisocyanate is used in an amount such that the isocyanate groups are present in molar excess relative to the hydroxyl groups of the polyol mixture. Also encompassed are the use of the described adhesives for laminating two or more films, and the multilayer laminates obtainable by the described methods.

Polyurethane adhesives for bonding low surface energy films

The invention relates to a compound comprising at least two &#x2014;(NH&#x2014;C&#x2550;O)&#x2014; groups and at least two &#x2014;(C&#x2550;O)&#x2014;C&#x2261;C&#x2014;Rgroups, wherein Rrepresents hydrogen or a group having from 1 to 12 carbon atoms; a curable composition comprising a first unit comprising at least two &#x2014;(NH&#x2014;C&#x2550;O)&#x2014; groups, a second unit comprising at least two &#x2014;(C&#x2550;O)&#x2014;C&#x2261;C&#x2014;Rgroups, and a catalyst; and the use of the composition as an adhesive, coating, casting composition or as sealant.

NCO-free compounds and usage thereof in a curable composition

A radiation curable adhesive comprising (i) (meth)acrylic monomer(s) and/or oligomer(s), wherein said (meth)acrylic monomers or oligomers comprise 5 to 50 wt % of esters of (meth)acrylic acid with polyetherpolyols having the formula HO&#x2014;((CH)&#x2014;O)&#x2014;X wherein m=2, 3 or 4; n=2 to 50; X=H, linear, branched or aromatic C1 to C12-alkyl, the ester having a molecular weight from 150 to 2000 g/mol; (ii) non-reactive (co)polymer(s) based on unsaturated monomers, wherein said unsaturated monomers are selected from vinyl esters, (meth)acrylate esters and C2 to C8 unsaturated olefins, the (co)polymer having a molecular weight from 5000 g/mol to 500000 g/mol, such adhesive can form a solid adhesive layer after being cross-linked by radiation, the layer, has a non tacky surface but can be adhesively bonded under pressure to a second layer of the adhesive.

Dry bonding acrylate adhesive layers

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Dusseldorf, Germany

Roberto Pela