Henkel Kommanditgesellschaft Auf Aktien

Hermann Onusseit

Bernhard Herlfterkamp

Ludwig Broich

Herbert Fischer

Thomas Moeller

Winfried Emmerling

Norbert Huebner

Dieter Feustel

Werner Haller

Klaus Friedrich

Ralf Gossen

Bernhard Schoettmer

Horst Buxhofer

Hartmut Buesching

Marcus Heemann

Eckhard Puerkner

Thomas Huver

Andreas Ferencz

Ulrich Eicken

Ralf Grauel

Wolfgang Klingberg

Jan Auris

Eckhardt Puerkner

A method for increasing an adhesive to a substrate is disclosed which utilizes a hydrophilic, high molecular weight, nonionic polyurethane adhesive. The polyurethane adhesive is soluble in water and a 1% by weight solution of the adhesive in water at 20% has a specific viscosity of at least 0.4. The nonionic polyurethane contains the following structural units:

Method for thickening aqueous systems using hydrophilic polyurethanes

Method for forming an adhesive layer using hydrophilic polyurethanes related applications

Adhesive systems are useful for bonding wrap-around labels using an overlap adhesive in their application to blown plastic containers, more particularly plastic bottles. The adhesive system includes reactive contact adhesives based on multifunctional macromonomer compounds curable in steps by different reaction mechanisms, which may also be present mixed with one-stage reactive mixture components.

Use of selected adhesive mixtures for overlap adhesion of round labels when applied to plastic bottles

Adhesive systems comprised of one or more photoinitiators and one or more adhesives capable of radiation-induced reaction are useful in one-step or multi-step perfect binding of books and other printed articles. The adhesive may be a low viscosity mixture of a monomer and/or polymer which is cross-linkable by UV or stronger electromagnetic radiation.

Process for the perfect binding of printed articles

Hydrophilic polyurethanes

The invention relates to an adhesive system for labeling containers, more especially hollow containers, with wrap-around labels. The adhesive system comprises a pick-up adhesive and an overlap adhesive. It is characterized in that, in the wet state, the pick-up adhesive has sufficient wet bond strength for labeling and, in the dried state, does not adhere to at least one of the substrates. The pickup adhesive contains 5 to 85% by weight and preferably 5 to 60% by weight of at least one water-soluble polymer based on casein, starch, dextrin, glucose, polyvinyl alcohol, polyurethane or polyacrylic acid, 0.00 to 1.00% by weight and preferably 0.01 to 0.30% by weight of at least one defoamer, 0.00 to 1.00% by weight and preferably 0.01 to 0.30% by weight of at least one preservative and water as the balance to 100% by weight.

Adhesive system for gluing all-around labels

Adhesive system for sticking all-round labels

Water-containing antislip composition

Antislip preparation

The invention relates to the use of special alkyd resins and/or special polyester resins of monobasic carboxylic acids and/or esters thereof, polybasic carboxylic acids and/or anhydrides thereof, polyhydric alcohols and polyethylene glycol containing residual acid carboxyl groups at least partly reacted to form salts as pressure-sensitive hot-melt adhesives removable with aqueous solutions.

Use of polyester resins as hot-melt adhesives

Water-containing adhesive based on casein

Water-containing adhesive

Growing community of inventors

Haan, Germany

Hermann Onusseit