Sicpa Holding Sa

Thomas Tiller

Frédéric Gremaud

Olivier Rozumek

Xavier Marguerettaz

Andrea Callegari

Vickie Aboutanos

Brahim Kerkar

Aurélien Commeureuc

Sylvain Jaquier

Cécile Pasquier

Myron Seto

Juan Lopez Gejo

Martin Zühlke

Claude-Alain Despland

Edgar Mueller

Tristan Jauzein

Aurélien Georges Jean Commeureuc

Ünige Laskay

Daniel Riebe

Toralf Beitz

Edgar Muller

Patrick Wyss

Edgar Müller

Christine Reinhard

Catherine Fankhauser

Olivier Brémond

Alexia Christinat

Stéphanie Rascagneres

Stéphanie Rascagnères

Olivier Bremond

Aurelien Georges Commeureuc

Philippe Chillat

Aurélie Grivel

The present invention provides a method for determining the authenticity of a petroleum hydrocarbon allegedly comprising at least one specific chemical marker, as well as a method for determining adulteration of a petroleum hydrocarbon marked with at least one specific chemical marker. The methods claimed and described herein rely upon the use of specific chemical markers in combination with laser ionization at a wavelength of between about 300 nm and about 370 nm coupled with ion mobility spectrometry or with mass spectrometry.

Method for determining authenticity and adulteration of marked petroleum hydrocarbons

The present invention relates to a method of marking a petroleum hydrocarbon by adding to and uniformly mixing with said petroleum hydrocarbon a chemical marker of general formula (I) wherein two of the residues R-Rare independently of each other selected from C-C-alkoxy, and eight of the residues R-Rare independently of each other selected from the group consisting of hydrogen and C-C-alkyl, as well as to a composition of a petroleum hydrocarbon comprising a petroleum hydrocarbon and at least one chemical marker of general formula (I). The presence and concentration of the chemical marker of general formula (I) in the composition of the petroleum hydrocarbon can be advantageously determined by laser ionization coupled with mass spectrometry or by laser ionization coupled with ion mobility spectrometry.

Method of marking a petroleum hydrocarbon

The present invention relates to a marking of polymeric liquid crystal material having determined optical characteristics allowing its authentication and reading by a machine and its authentication by the human eye. The marking is applied onto an item, good or article by a variable information printing process. The marking is in the form of indicia representing a unique code which allows for an easy authentication by the human eye and a secure tracking and tracing of the marked item, good or article throughout is life cycle.

Identification and authentication using polymeric liquid crystal material markings

A method of increasing the solubility and/or dispersibility of a perylene dye in a liquid medium. The method comprises binding the perylene dye to a polymer which is soluble in the liquid medium. This abstract is neither intended to define the invention disclosed in this specification nor intended to limit the scope of the invention in any way.

Polymer-bonded perylene dyes and compositions containing same

Coding flake or film including at least two chiral liquid crystal polymer (CLCP) layers with a first CLCP layer that has a first detectable parameter and a second CLCP layer including a second detectable parameter; at least one additional layer including a third detectable parameter, the at least one additional layer comprising a material that is not a chiral liquid crystal polymer; and wherein at least the third detectable parameter is different from each of the first detectable parameter and the second detectable parameter.

Multilayer flake with high level of coding

Method for increasing at least one of the solubility and dispersibility of a quaterrylene and/or terrylene dye in a liquid medium, including binding the quaterrylene or terrylene dye to a polymer which is soluble in the liquid medium. Various aspects relate without limitation to polymer-bonded quaterrylene or terrylene dyes, processes, markings, security features, articles and dye-doped polymers.

Polymer-bonded quaterrylene and/or terrylene dyes and compositions containing same

The present invention relates to a marking on an item or substrate, which marking is based on a chiral nematic (also called cholesteric) liquid crystal precursor composition. Prior to curing the chiral liquid crystal precursor composition in the chiral liquid crystal state at least one optical property exhibited by the composition is modified by two modifying agents of different types in at least one area of the item or substrate.

Substrate with a modified liquid crystal polymer marking

The present invention relates to a marking of polymeric liquid crystal material having determined optical characteristics allowing its authentication and reading by a machine and its authentication by the human eye. The marking is applied onto an item, good or article by a variable information printing process. The marking is in the form of indicia representing a unique code which allows for an easy authentication by the human eye and a secure tracking and tracing of the marked item, good or article throughout its life cycle.

Identification and authentication using liquid crystal material markings

Aqueous thermal inkjet ink composition for the printing of security documents comprising at least one luminescent water-soluble lanthanide complex.

Secure document comprising luminescent chelates

A liquid crystal polymer marking is obtainable by a process that comprises applying a first chiral liquid crystal precursor composition onto a substrate, heating the composition to bring same to a first chiral liquid crystal state, applying to at least one area of the first composition a second chiral liquid crystal precursor composition, heating the at least one area to bring same to a second chiral liquid crystal state, and subsequently curing and/or polymerizing the resultant product. This abstract is neither intended to define the invention disclosed in this specification nor intended to limit the scope of the invention in any way.

Chiral liquid crystal polymer marking

A liquid crystal polymer marking is obtainable by a process that comprises applying a chiral liquid crystal precursor composition onto a substrate, heating the composition to a bring same to a chiral liquid crystal state, locally applying at least one modifying agent to modify the chiral liquid crystal state, and curing and/or polymerization the resultant product. This abstract is neither intended to define the invention disclosed in this specification nor intended to limit the scope of the invention in any way.

Marking based on chiral liquid crystal polymers

A liquid crystal polymer marking is obtainable by a process that comprises applying a chiral liquid crystal precursor composition onto a substrate, heating the composition to a first chiral liquid crystal state, applying to at least one area of the precursor composition a chiral dopant composition, heating the at least one area to bring same to a second chiral liquid crystal state, and subsequently curing and/or polymerizing the resultant product. This abstract is neither intended to define the invention disclosed in this specification nor intended to limit the scope of the invention in any way.

Marking based on modified chiral liquid crystal polymers

A liquid crystal polymer marking is obtainable by a process that comprises applying a chiral liquid crystal precursor composition onto a substrate, heating the composition to a chiral liquid crystal state, applying to at least one area of the precursor composition a modifying composition, if necessary, heating the at least one area to bring same to a modified liquid crystal state, and subsequently curing and/or polymerizing the resultant product. This abstract is neither intended to define the invention disclosed in this specification nor intended to limit the scope of the invention in any way.

Growing community of inventors

Bussigny, Switzerland

Thomas Tiller