Patent · US Active

LED-curable offset inks containing aluminum additives

US12410331B2 · kind B2 · utility

0Cited by

6References

24Claims

0Family size

Assignee

SUN CHEMICAL B.V. · NL

Inventors

Christian Johnke · Frankfurt am Main, DE
Kai-Uwe Gaudl · Wantage, US
Matthias Hellblau · Großwelzheim, DE

Key dates

Filing date	Sep 22, 2023
Grant date	Sep 9, 2025
Priority date	—
Expiry date	Sep 22, 2043

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC09D11/322
WIPO fieldBasic materials chemistry
WIPO sectorChemistry

Abstract

An LED curable lithographic ink comprising: 25-85% of one or more acrylates, wherein at least one acrylate is a pentaacrylate or hexaacrylate; 0-20% of one or more photoinitiators; 5-60% of one or more rosin-modified polyester resins, wherein the rosin-modified polyester resin has a molecular weight of 5,000 to 35,000 Daltons; 0.2-5% of one or more aluminum additives; 0.1-5% of one or more polymerization stabilizers; and 0-50% colorant.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.