Basf Aktiengesellschaft

Bayer Aktiengesellschaft

Freshpoint Quality Assurance Ltd.

Freshpoint Holdings S.a.

Other

Siemens Aktiengesellschaft

Dietrich Haarer

Uwe Claussen

Karl Siemensmeyer

Karl-Heinz Etzbach

Horst Berneth

Wolfgang Paulus

Peter Schuhmacher

Helmut Ringsdorf

Peter Strohriegl

Lukas Haussling

Husein Salman

Reinhold J Leyrer

Harald Lauke

Juergen Simmerer

Sundeep Kumar

Tal Gueta-Neyroud

Jochen Schaller

Yoav Levy

Ralf Neigl

Dirk Funhoff

Thomas Bieringer

Ralf Ruhmann

Bernhard Nick

J&uuml;rgen Simmerer

Dieter Adam

Roland Wuttke

Gerhard Hoffmann

Thomas Fischer

Wolfgang Jacobsen

Joachim H Wendorff

Yoav Eichen

Joachim Stumpe

Friedrich Closs

Claus D Eisenbach

Michael Rutloh

Joachim Rubner

Karl Fischer

Sergei Kostromin

Thomas Frey

Karsten Engel

Christina Antonius

Yoav Lévy

Stephan C Schmidt

Dieter Meissner

Uwe Gessner

Lutz Laser

Elmar O Mueller-Horsche

Tai Gueta-Neyroud

Jurgen Simmerer

Birgit Glusen

Andreas Kettner

The present invention is generally in the field of measuring and indicating techniques and relates to a time-temperature indicator and methods of manufacturing and use thereof. More specifically, the time-temperature indicator comprises a time temperature indicator comprising at least one metal layer or metal containing layer and in direct contact to the metal layer or to the metal containing layer at least one doped polymer layer, wherein the dopant is an acid, a base or a salt or a photolatent acid or a photolatent base which dopant is added to the polymer, and/or at least one polymer layer wherein a polymer is functionalized with acidic or latent acidic or basic or latent basic groups; or a time temperature indicator comprising at least one polymer layer containing metal particles and a photolatent acid or a photolatent base, or at least one polymer layer containing metal particles wherein the polymer is functionalized with latent acidic or latent basic groups.

Time temperature indicator

A device is presented for use in controlling the quality of a perishable object, while progressing on its supply line, by monitoring the condition of a time-temperature indicator (TTI) associated with the object. The device comprises a sensing assembly for detecting a response of the TTI to a predetermined stimulus and generating measured data representative thereof, said measured data being indicative of the condition of the TTI, thereby enabling the determination of the remaining shelf life of the TTI and thereby any perishable good to which it is attached and calibrated.

Method and system for determining the condition of a time-temperature indicator

The present invention is generally in the field of measuring and indicating techniques and relates to a time-temperature indicating device and methods of manufacturing and reading this device. More specifically, the time-temperature indicator (TTI) device comprises at least one active reactant being at least a part of a component that is configured to be either an electrical component or transformable into an electrical component, said at least one active reactant being selected to be affectable by a chemical and/or physical reaction effecting a change in at least an electrical property of said electrical component at a rate that is time-temperature dependent.

Time-temperature indicating device

The present invention is generally in the field of measuring and indicating techniques and relates to a time-temperature indicator and methods of manufacturing and use thereof. More specifically, the time-temperature indicator comprises at least one metal layer or metal containing layer, and in direct contact to the metal layer or to the metal containing layer at least one pad member affixed onto a pad carrier layer, wherein the pad member comprises a pad made of an absorbent material and a dopant medium, whereby the dopant medium comprises a liquid medium or a viscous medium or a viscoelastic medium which is doped with a dopant that destroys the metal/metal containing layers such as an acid, a base or a salt or a photolatent acid or a photolatent base.

The present invention relates to a time temperature indicator comprising at least one indicator compound in a first isomeric form, which is converted into a second isomeric form of said indicator compound in a valence isomerization reaction without migration of an atom or chemical group attached to said indicator compound in a time and temperature dependent manner, wherein the formation of the second isomeric form is detectable by monitoring a physical characteristic of the indicator. The present invention also relates to a method of manufacturing such a time-temperature indicator comprising the steps of (a) embedding in or atop a matrix said indicator compound; and (b) inducing the formation of a metastable state of said embedded indicator compound.

Time-temperature indicator based on valence isomerizations

The invention relates to a substrate for packaging of or for attachment to products which are sensitive to aging and temperature, having a planar time-temperature integrator comprising a matrix and at least one reversible indicator embedded therein, which has photochromic properties on the basis of transfix reactions, arranged in the region of the substrate.

Substrate for packaging perishable goods or for application onto same and method for determining the quality of said goods

Electrochromic display device comprising a pair of glass or plastic plates or plastic films of which at least one plate or film or both plates or films is/are provided on one side each with an electrically conducting coating. At least one plate or film and its conductive coating is transparent. On at least one of the two plates or films, the electrically conductive layer is divided into separate segments which are individually connected to a power source and each has an electric lead from the edge of the device. The plates or films are joined via a sealing ring on the sides on which they are conductively coated. The volume formed by the two plates or films and the sealing ring is filled with an electrochromic medium. The electric leads to the segments are electrically insulated from the electrochromic medium. Methods for producing an electrochromic display device in which the segments and their power leads are first produced by removal of material from a continuous conductive coating or are applied to the plates or films and the electrically insulating layer is subsequently applied to the power leads. Method of operating an electrochromic display device in which the display device is operated using a constant, pulsed or variable-amplitude DC potential or using an AC potential.

Electrochromic display device with power leads insulated from the electrochromic medium

The novel electrochromic system comprises at least one reducible and at least one oxidizable substance OX,and RED,respectively, which are linked with one another via a bridge member, and is outstandingly suitable for use in an electrochromic device.

Electrochromic system

Electrochromic display devices, whose plates having conductive coatings are subdivided into segments which are electrically separated from one another, can be contacted individually and, between the plates, contain a solvent, specific electrochromic substances and optionally conductive salts, are distinguished by excellent edge definition and high contrast.

Electrochromic indicating device

The invention concerns an electrochrome system comprising a mixture of reducible and oxidizable substances RED,and OX,, at lest one RED,&prime;-OX,&prime; pair being covalently interlinked via a bridge and, for at least one RED,&Prime; or OX,&Prime; substance, the reciprocal conversion of the oxidized form and the reduced form being brought about by the fracture or formation of a &sgr;-bond. The electrochrome system is characterized by simplified electron transfer and reduced secondary reactions.

Use of organic compounds in the plastic columnar discotic liquid-crystal

The use of low molecular-weight or polymeric organic compounds which are present in the columnar-helical phase and have liquid-crystalline properties, as photoconductors or in electronic components, corresponding photoconductive layers, an electrophotographic recording material and a method for enhancing the photoconductivity.

Use of low molecular-weight or polymeric organic compounds which are

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Bayreuth, Germany

Dietrich Haarer