Anti-counterfeiting non-yellowing watermark ink

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Processes of preparing a desired or intentional composition...

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Details

524205, 524299, 524599, C09D 500, C08K 516, C08K 509

Patent

active

058470247

ABSTRACT:
A stable, pigmentless, simulated watermark ink is composed of a drying oil modified polyester, an aluminum alkoxide gelling agent and an ultraviolet light absorber.

REFERENCES:
patent: 5500040 (1996-03-01), Fujinami
patent: 5605750 (1997-02-01), Romano et al.

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