Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.v.

Dow Global Technolgoies LLC

Other

Manfred Pinnow

Jürgen Engelhardt

Klaus Nachtkamp

Rudi Danz

Steffen Fischer

Kay Hettrich

Christa Krüger

Armin Wedel

Norbert Lauinger

Volker Kriegisch

Andreas Buchtemann

Sigurd Kusch

Hans-Otto Carmesin

The present invention provides novel nanoscale cellulose particles and also a process for their production. The cellulose-based particles obtained have volume-averaged particle sizes of less than 300 nm. These nanoparticles are produced from amorphous cellulose or by amorphization of cellulose, optional subsequent hydrolysis and by input of energy into a water-containing medium after or during dispersion.

Nanoparticles made of amorphous cellulose

The present invention provides novel nanoscale cellulose particles and also a process for their production. The cellulose-based particles obtained have volume-averaged particle sizes of less than 300 run. These nanoparticles are produced from slightly oxidized cellulose and by input of energy into a water-containing medium after or during dispersion.

Nanoparticles from slightly oxidised cellulose

Process and device for high-definition measurement of intervals in the

Information storage unit comprising a substrate with applied thereon a polymer layer (active polymer layer) which is polarisable by a focussed electron beam, the active polymer layer being a component of a multilayer, said multilayer comprising an active polymer layer of at least one to a maximum of fifteen electrically-insulating layers and at least one to a maximum of fifteen electrically conductive and/or semiconductive layers in an optional layer sequence, on condition that the active layer is disposed between at least one electrically-insulating layer and at least one conductive or semiconductive layer.

Information storage device

The invention relates to a method and a corresponding device for inscribi reading, and erasing information from an information storage layer through use of an electrical field. The information storage layer includes a polarisable polymer film for an active layer. The dipoles are initially oriented in a unipolar manner. Inscription of the information is effected by the application of an opposing electrical field to the active layer. Readout of the different polarisation conditions is effected optically, the phase position of the emitted light of the optical second harmonic being detected by an interferometric process. The information on the storage layer may be deleted by an electrical polarisation process.

Method of inscribing and readout of information in an information

Growing community of inventors

Teltow, Germany

Manfred Pinnow