Polycyclic Aromatic Hydrocarbons with S Atoms for Ink Solubility
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Solution Overview
Problem
Perylene, terrylene, and quaterrylene compounds have low solubility and dispersibility in liquid media, limiting their suitability as colorants in printing inks, which hinders the ability to distinguish original products from counterfeit or diverted items and secure documents.
Innovation Solution
Development of polycyclic aromatic hydrocarbon compounds with a polymeric moiety, S atom or S(═O)2 moiety, and nitrogen-containing heterocycloaliphatic or phenoxy groups, enhancing solubility and dispersibility in liquid media, specifically in printing inks, for improved product authentication and document security.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If perylene, terrylene, and quaterrylene compounds are used as colorants in printing inks, then product authentication and document security are improved, but their low solubility and dispersibility in liquid media limit their suitability for use
Solution Approach 1:
The patent modifies the chemical structure of perylene, terrylene, and quaterrylene compounds by introducing specific substituents (polymeric moieties, nitrogen-containing heterocycloaliphatic groups, phenoxy groups, S atoms, and S(=O)2 groups) to change their solubility parameters while maintaining their authentication functionality
Solution Approach 2:
The patent creates composite molecular structures by combining the core perylene/terrylene/quaterrylene skeleton with various functional groups including polymeric moieties, heterocycloaliphatic groups, and phenoxy groups to achieve both solubility and authentication properties
2Reliability
If perylene, terrylene, and quaterrylene compounds are used as colorants in printing inks, then product authentication and document security are improved, but their low dispersibility in liquid media limits their suitability for use
Solution Approach 1:
The patent modifies the chemical structure of perylene, terrylene, and quaterrylene compounds by introducing specific substituents (polymeric moieties, nitrogen-containing heterocycloaliphatic groups, phenoxy groups, S atoms, and S(=O)2 groups) to change their dispersibility parameters while maintaining their authentication functionality
Solution Approach 2:
The patent creates composite molecular structures by combining the core perylene/terrylene/quaterrylene skeleton with various functional groups including polymeric moieties, heterocycloaliphatic groups, and phenoxy groups to achieve both dispersibility and authentication properties
Data Source
AI summary
Polycyclic aromatic hydrocarbon compounds having an S atom or S(═O)2 moiety incorporated in their basic polycyclic structure that can have a nitrogen-containing heterocycloaliphatic group and/or a substituted or unsubstituted phenoxy group and/or a polymeric moiety bonded to the polycyclic structure and to compositions such as, e.g., printing inks which comprise these polycyclic aromatic hydrocarbons as colorants.