A process for hot application of an adhesive composition (80) on a support (96), by means of a nozzle (50) applying the adhesive composition (80), a line (88) supplying the nozzle (50) with the adhesive composition (80) to be applied in fluid form, a mixer (30) positioned in the line (88) for the homogeneous mixture of the main components of the adhesive composition before its application; the applied adhesive composition (80) including a silylated prepolymer, a compatible tackifying resin; the adhesive composition having a cross-linking catalyst; the process involving: supplying the line (88) with the silylated prepolymer separated from the cross-linking catalyst, the mixing of the cross-linking catalyst with the main components by the mixer (30), the hot application of the mixed adhesive composition (80) onto a support (96).

Linerless labels are presented. A label includes a specific pattern or set of patterns of adhesive applied to one side of the label. The adhesive pattern(s) reduces contact between a cutter blade of a printer and the adhesive on the one side of the label. Moreover, the adhesive patterns reduce buildup of adhesive on the cutter blade and reduce buildup at specific locations on the cutter blade. That is, the adhesive patterns more evenly distribute adhesive buildup across the cutter blade. Consequently, the cutter blade can be used for a longer period of time before the cutter blade needs to be cleaned of the adhesive.

A method of preparing a thermoplastic polyurethane membrane with high adhesion and high elasticity includes the following steps: (a) preparing a modifying solution, wherein the modifying solution is one or a mixture of at least two of diethylenetriamine, diethylaminopropylamine, and diaminodiphenylmethane; (b) preparing a semi-finished product by applying the modifying solution on at least one surface of a thermoplastic polyurethane membrane; and (c) subjecting the semi-finished product to a temperature of 50° C.˜180° C. in order for the semi-finished product to undergo a reaction and thus form the thermoplastic polyurethane membrane with high adhesion and high elasticity.

A method of preparing a thermoplastic polyurethane membrane with high adhesion and high elasticity includes the following steps: (a) preparing a modifying solution, wherein the modifying solution is one or a mixture of at least two of diethylenetriamine, diethylaminopropylamine, and diaminodiphenylmethane; (b) preparing a semi-finished product by applying the modifying solution on at least one surface of a thermoplastic polyurethane membrane; and (c) subjecting the semi-finished product to a temperature of 50° C.˜180° C. in order for the semi-finished product to undergo a reaction and thus form the thermoplastic polyurethane membrane with high adhesion and high elasticity.

The present invention relates to a hot-melt adhesive resin film having an excellent adhesive force and durability to various adherends such as metal, glass, and plastic, and a production method thereof. More particularly, the present invention relates to a hot-melt adhesive resin film including a first surface layer, a first intermediate layer, a substrate layer having heat resistance, a second intermediate layer, and a second surface layer, which are laminated in this order, in which the first intermediate layer and the second intermediate layer include a resin which is obtained by modifying a copolymer of propylene and 1-butene with maleic acid, and a production method thereof.

A method for manufacturing an electrical steel sheet product according to an exemplary embodiment of the present invention includes: preparing an adhesive coating composition; forming an adhesive coating layer by applying and then curing the adhesive coating composition onto a surface of an electrical steel sheet; forming a heat-fused layer by laminating and heat-fusing a plurality of electrical steel sheets on which the adhesive coating layers are formed; and cooling the heat-fused electrical steel sheets at a cooling rate of 0.05 to 20° C./min.

A water comprising, two component polyurethane dispersion adhesive comprising an anionic polyester polyurethane resin and a solvent-free liquid aliphatic polyisocyanate cross-linker. The dispersion can be reactivated one or more times for edge bonding a flexible sheet material onto a substrate having a main surface, a peripheral surface and an edge connecting the main surface and the peripheral surface.

An apparatus and method for applying a multi-component curable composition is disclosed. The method for applying a multi-component curable composition includes a) applying a plurality of fluids constituting the multi-component curable composition to a surface of a bonding target object layer by layer, b) acquiring a two-dimensional image of all the fluids applied layer by layer using an image sensor, c) measuring a height of all the fluids applied layer by layer using a distance sensor, and d) calculating a total volume of the multi-component curable composition by using the two-dimensional image and height of the fluids obtained in b) and c).

An apparatus and method for applying a multi-component curable composition is disclosed. The method for applying a multi-component curable composition includes a) applying a plurality of fluids constituting the multi-component curable composition to a surface of a bonding target object layer by layer, b) acquiring a two-dimensional image of all the fluids applied layer by layer using an image sensor, c) measuring a height of all the fluids applied layer by layer using a distance sensor, and d) calculating a total volume of the multi-component curable composition by using the two-dimensional image and height of the fluids obtained in b) and c).

This invention relates to a method for manufacturing a continuous linerless label web. The continuous linerless label web comprises a positionally alternating adhesive coating on a face. The method comprises: supplying the face with a release coating arranged on a first side, providing positionally alternating continuous adhesive stripes on a second side wherein predetermined properties of the positionally alternating continuous adhesive stripes are selected so that number of stripes in each single customer roll is one or more, width of each stripe is smaller than width of single customer roll, and positional frequency is selected so that one oscillation cycle covers 0.1-10 peripherical lengths in a machine roll, and 1-100 peripherical lengths in a customer roll defined as peripheries of full rolls. This invention further relates to a linerless label web and a linerless customer roll.