Bio-based polyester latex
AssigneeOce-Technologies B.V.
InventorsRonald Hofstra, Roy W. N. Evers
Life of this patent
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Abstract
Disclosed is a copolyester which is the reaction product of a mixture having from between 30 and 50 mol % of a first monomer being an isohexide; between 40 and 60 mol % of a second monomer being an aromatic dicarboxylic acid or a cycloaliphatic dicarboxylic acid; and between 1 and 20 mol % of a third monomer being an aliphatic diol, the copolyester having an acid number of between 10 and 50. Also disclosed is a process for preparing such copolyesters, a latex composition containing such a copolyester, a method for preparing such a latex composition and the use of a particular latex as an (ink-jet) ink.
Claims14
A latex composition, comprising:
- water as a medium and
- between 10 and 50 wt % particles of a copolyester dispersed in the medium, the particles having an average diameter of between 10 and 1000 nm;
- wherein the copolyester is a reaction product of a mixture comprising:
- from between 30 and 50 mol % of a first monomer being an isohexide;
- between 40 and 60 mol % of a second monomer being an aromatic dicarboxylic acid or a cycloaliphatic dicarboxylic acid;
- and
- between 1 and 20 mol % of a third monomer being an aliphatic diol,
- the copolyester having an acid number of between 10 and 50.
Dependencies are inferred from the claim text.