Seeking Rheology modifiers for solvent based formulations in writing inks

Must haves :

​TRL level:

• Above TRL 7 ( TRL 7: System prototype demonstrated in operational environment , TRL 8: System complete and qualified, TRL 9: Actual System proven in operational environment)

Technical requirements

• Must have a thixotropic behaviour
• Viscosity under shear stress: ~2000 – 4000 cP @ shear stress 100s-1 & temperature 20°C
• Viscosity in idle condition: @ 0.01s-1 & 20°C at least 20x more than the one @ 100s-1
• Fast return to idle condition viscosity after shear stress is removed (thixotropic recovery) <5’
• Material particle size to be below 1um

Chemical compatibility:

• Ability to form a gel in phenoxy ethanol or phenoxy propanol
• No increase of viscosity in water
• No agents for water-based solutions

Business requirements

• Active ingredient available in large capacity >100kg/year
• Viable cost range <100€/kg

Legal / Environmental requirements

• Non-toxic (no CMR cat 1A/1B/2; no SVHC)
• REACH compliant
• Nice to have:TOYS regulation compliant

Collaboration opportunities :

Open to any business relationship on the negotiations stage. Among them : R&D contract, Technology Licensing, Joint Development, Supply Agreement, Patent Sale

Interested in testing sample materials in order to identify the validity of proposals. Afterwards, successful results could lead to an ongoing partnership focused on technology transfer and scaling up.