Provided is a barrier adhesive composition comprises polyisobutylene resin, organically modified nanoclay (e.g. montmorillonite or bentonite) and sorbent nanoparticles (e.g. CaO which acts as a desiccant and/or getter). In a preferred embodiment, the barrier adhesive composition is disposed on a gas-barrier film to form an adhesive barrier film. The adhesive barrier film can then be used for protection from oxygen and moisture in OLED displays and solid state lightings, solar cells, electrophoretic and electrochromic displays, thin film batteries, quantum dot devices, sensors (e.g. touch sensor) and other organic electronic devices. The adhesive barrier film is especially well-suited for applications that require oxygen and moisture protection as well flexibility and good optical transmittance.

Nanoparticle filled barrier adhesive compositions

A method for producing an electrode assembly includes a step of ultrasonically welding an exposed portion where the surface of an electrode current collector is exposed and an electrode lead to each other. The ultrasonic welding is performed, while the exposed portion of the electrode current collector and the electrode lead are stacked on each other, with an ultrasonic horn pressed against a resin sheet disposed on the exposed portion or the electrode lead. The resin sheet includes a sheet base material and an adhesive layer formed on one surface of the base material and is bonded to a portion of the exposed portion that is to be in contact with the ultrasonic horn or to a portion of the electrode lead that is to be in contact with the ultrasonic horn.

Method for producing electrode assembly and method for producing nonaqueous electrolyte secondary battery

The invention discloses a high-performance soft magnetic material The material comprises a primary material and an auxiliary material The primary material is composed of 515-535 mol% of Fe2O3, 65-85 mol% of ZnO, 285-375 mol% of Mn3O4 and the balance of amorphous alloy Fe86P235C75 The auxiliary material is composed of 008-058 wt% of hollow microspheres, 003-005 wt% of V2O5, 001-003wt% of Nb2O3, 002-004 wt% of CaCO3, 005-010 wt% of ZrO2 and 010-020 wt% of Y2O3 The high-performance soft magnetic material efficiently improves mechanical intensity of a manganese zinc powersoft magnetic ferrite material and a magnetic core, enhances tenacity, improves fragility of the soft magnetic ferrite magnetic core element and reduces damage during transportation and application breakage problem in a device automatic assembling process

High-performance soft magnetic material and element preparation method

The present disclosure relates to a pressure sensitive adhesive assembly suitable for bonding to a substrate provided with an uneven surface, wherein the pressure sensitive adhesive (PSA) assembly comprises a polymeric foam layer comprising a polymeric base material, and having a complex viscosity comprised between 2,000 Pa.s to 80,000 Pa.s, when measured at 120°C according to the test method described in the experimental section. The present disclosure is also directed to a method of applying a pressure sensitive adhesive assembly to a substrate provided with an uneven surface, and uses thereof.

Pressure sensitive adhesive assembly suitable for bonding to uneven substrates

Druckempfindliche Klebeanordnung zur Bindung an ungleichmäßige Substrate

Cette divulgation concerne un ensemble adhesif sensible a la pression pouvant adherer a un substrat pourvu d'une surface irreguliere, l'ensemble adhesif sensible a la pression (PSA) comprenant une couche de mousse polymere comprenant un materiau de base polymere, et ayant une viscosite complexe comprise entre 2 000 et 80 000 Pa.s, quand elle est mesuree a 120°C selon la methode d'essai decrite dans la section experimentale. Un procede d'application de l'ensemble adhesif sensible a la pression selon la presente divulgation sur un substrat pourvu d'une surface irreguliere, et ses utilisations sont en outre decrits.

Ensemble adhésif sensible à la pression pouvant adhérer à des substrats irréguliers

The present disclosure provides a method for bonding parts, comprising the following steps (a) Providing a two-component adhesive composition precursor, comprising a first part (A) comprising at least one epoxy curing agent and preferably at least one first dye; a second part (B) comprising at least one second dye different from the at least one first dye and at least one epoxy resin; (b) Mixing part (A) and part (B) of the two-component adhesive composition precursor so as to obtain an adhesive composition; (c) Applying the adhesive composition onto a first part; (d) Applying a second part onto the adhesive composition applied to the first part; and then performing a first curing step at a first temperature, wherein the adhesive composition undergoes a first colour change; or (e) Performing a first curing step at a first temperature, wherein the adhesive composition undergoes a first colour change, and then applying a second part onto the adhesive composition applied to the first part; (f) Perform a second curing step at a second temperature higher than the first temperature, thereby fully curing the adhesive composition so as to obtain a structural adhesive bond between the first and second parts, wherein the adhesive composition undergoes a second colour change.

Two-part adhesive composition that undergoes a visual change when cured

Der erfolgreiche Einsatz geklebter Bauteile und Komponenten hangt insbesondere von der schadigungsfreien Klebung der Fugepartner ab. Deshalb besteht das grundsatzliche Bestreben, relevante Schadigungen und Defekte bereits im fruhen Fertigungsstadium zu detektieren. Eine 100% Prufung sollte stets das Ziel sein, wobei sich insbesondere bei komplizierteren Strukturen die Frage nach der Erkennbarkeit solcher Defekte stellt. Die ultraschallangeregte Lockin-Thermografie empfiehlt sich hier als eine schnelle bildgebende und in Bezug auf die Defektdetektion aussagesichere Prufmethode.

Sichere Erkennung defekt geklebter Bauteile in der Produktion

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