Patent application number | Description | Published |
20080261130 | Process for a Thermal Transfer of a Liquid Crystal Film Using a Transfer Element - The invention relates to a laser-induced process that employs a transfer element comprising a liquid crystal material for a thermal transfer onto a receiving surface. The process is suitable for generating markings with various appearance or optical effects on a surface of choice. The transfer element comprises a light-to-heat conversion layer and a transfer layer The transfer layer comprises a liquid crystal material, especially a liquid crystal polymer film. | 10-23-2008 |
20080290649 | Laser Transfer of Security Features - The present invention relates to a process for increasing the counterfeiting protection of high-value products, documents of value and security documents by means of uncopyable security features which are transferred into the respective material with the aid of laser technology. | 11-27-2008 |
20090071540 | COMBINED ETCHING AND DOPING MEDIA - The present invention relates firstly to HF/fluoride-free etching and doping media which are suitable both for the etching of inorganic layers and also for the doping of underlying layers. The present invention secondly also relates to a process in which these media are employed. | 03-19-2009 |
20100068889 | PARTICLE-CONTAINING ETCHING PASTES FOR SILICON SURFACES AND LAYERS - The present invention relates to particle-containing etching media in the form of etching pastes which are suitable for the full-area or selective etching of extremely fine lines or structures in silicon surfaces and layers and in glass-like surfaces formed from suitable silicon compounds. The present invention also relates to the use of the pastes according to the invention in processes for etching surfaces of this type. | 03-18-2010 |
20110018252 | SECURITY PIGMENT - The present invention relates to a security pigment having an intrinsic hidden and/or forensic security feature, consisting of a transparent inorganic matrix and at least one particulate material embedded in the matrix, to the use of a security pigment of this type for the pigmentation of paints, coatings and the like, and to a method for the detection of a security pigment of this type. | 01-27-2011 |
20130270344 | COLOURED MAGNETISABLE SECURITY ELEMENT - The present invention relates to a coloured magnetisable security element which is suitable for the protection/verification of articles to be protected against counterfeiting and copying, in particular documents of value, is machine-readable and has a specific absorption behaviour in the NIR region, to a method for the verification of a security element of this type, and to the use of the security element for the protection and/or verification of products. | 10-17-2013 |
20150023899 | PIGMENT MIXTURE - The present invention relates to a pigment mixture based on spherical particles having a defined particle-size distribution, and to the use thereof in paints, coatings, printing inks, security printing inks, plastics, ceramic materials, glasses, in cosmetic formulations, as tracer, as filler and for the preparation of pigment preparations and dry preparations. | 01-22-2015 |
20150259538 | GOLD PIGMENT - The present invention relates to a golden interference pigment which is suitable, in particular, for printing processes, to a process for the preparation of a pigment of this type, and to the use thereof | 09-17-2015 |