Nitto Denko

The invention relates to an elastic laminate with at least one nonwoven top layer and an elastic film bonded to it. The elongation at a load of 700 g according to DIN ISO 527 is at least 150% in the machine direction and at least 100% in the cross-direction.

The invention relates to an elastic laminate having at least one top layer made of a nonwoven and an elastic film, the at least one top layer having, in an unstretched state in the cross direction, a plurality of folds running in the machine direction, and the at least one top layer and the elastic film being joined to one another at a plurality of spaced-apart bonding points. In an unstretched state along the cross-direction, at least two of the folds between the bonding points have a different cross-section.

The invention relates to method for producing an elastic laminate comprising at least the following steps: a) supplying at least one nonwoven web and one elastic film web in a machine direction, b) formation of folds at least by folding the at least one nonwoven web in the cross direction while guiding the nonwoven web in a supported manner along a longitudinal section and c) formation of the elastic laminate by joining the essentially unstretched elastic film web to the at least one nonwoven web that has been folded at a multiplicity of bonding points.

Die Erfindung betrifft eine Haftfolie mit zumindest einer Trägerschicht (1), welche eine erste Haftfolienoberfläche bildet, und mit einer Haftschicht (2), welche eine zweite Haftfolienoberfläche bildet, wobei die Trägerschicht (1) auf Basis von Polyolefin und die Haftschicht (2) gemeinsam von einer coextrudierten Folienstruktur mit einer Foliendicke zwischen 35 µm und 185 µm gebildet sind, wobei die Trägerschicht (1) eine Prägung und mit der Prägung eine Trägerschichtdicke zwischen 30 µm und 150 µm aufweist, wobei die Prägung sich über eine Prägungshöhe erstreckt, welche zumindest 30% der Trägerschichtdicke und/oder zwischen 15 µm und 65 µm beträgt und wobei die Haftschicht (2) eine Haftschichtdicke zwischen 2 µm und 30 µm aufweist. Gegenstand der Erfindung sind des Weiteren eine Folienrolle mit der aufgewickelten Haftfolie, ein Verfahren zur Herstellung der Haftfolie und die Verwendung einer Haftfolie als Transferfolie.

[Problem]A water-dispersed PSA composition that has a significantly reduced amount of residual monomer and exhibits good decay resistance is provided.[Solution]Provided is water-dispersed PSA composition comprising an emulsion polymerization product of starting monomers. The water-dispersed PSA composition has a residual monomer amount of 500 µg/g or less and an oxygen concentration of 4 mg/L or higher.

Provided is a decomposition method for a polyester-based resin, which can efficiently produce a diol and a dicarboxylate from the polyester-based resin in a short time period without using a solvent. Also provided is a decomposition apparatus for a polyester-based resin, which decomposes the polyester-based resin to efficiently produce a diol and a dicarboxylate in a short time period without using a solvent. A decomposition method for a polyester-based resin according to an embodiment of the present invention includes kneading a mixture containing a polyester-based resin and a solid alkali compound to produce a diol and a dicarboxylate. A decomposition apparatus for a polyester-based resin according to an embodiment of the present invention is a decomposition apparatus configured to decompose a polyester-based resin to produce a diol and a dicarboxylate, and includes a kneading portion configured to knead a mixture containing the polyester-based resin and a solid alkali compound.

Beschrieben ist eine mehrschichtige Folie, umfassend eine Schicht (a) umfassend ein nichtwasserlösliches Polymer, und eine Schicht (b) umfassend ein quellbares oder wasserlösliches Polymer, wobei die Schicht (b) zusätzlich entweder einen geruchsbindenden Stoff und/oder einen Duftstoff enthält; sowie die Verwendung der Folie in Hygieneartikeln wie beispielsweise Windeln oder Dameneinzelbinden. Die mehrschichtige Folie kann unerwünschte Gerüche verursacht durch Flüssigkeiten wie z.B. Urin oder Menstruationsflüssigkeit effektiv und gezielt am Entstehungsort unterdrücken und ist zugleich einfach und kosteneffektiv in industriellem Maßstab herstellbar.

Provided are a method for reproducing a membrane element, which does not need to change the structure of a membrane element to be reproduced, can reduce waste caused by used membrane elements and save resources to be introduced, and can restore a separation function, and a membrane module using the resulting reproduced membrane element. A method for reproducing a membrane element for producing a reproduced membrane element using a part of a used membrane element (UE), the method comprising the steps of: cutting off at least both-side sealing parts of the used membrane element; unfolding membrane leaves (L) after cut-off and cutting off at least a peripheral-side sealing part (12) of the membrane leaves; replacing at least separation membranes (1) of the membrane leaves after unfolding and cut-off with new separation membranes; and obtaining a reproduced membrane element by forming both-side sealing parts and a peripheral-side sealing part that seal both-side ends and a peripheral-side end in an axial direction of the membrane leaves after replacement.

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