Patent ID: 11970623
Assignee: SOCIÉTÉ BIC
Field: Basic materials chemistry (Chemistry)
Classification: CPC C  B | IPC B  C

Claim 0:
1. A dry-erase ink for a writing instrument, comprising a solvent that is selected from the group consisting of n-propyl acetate, or isopropyl acetate as the main organic solvent, wherein the solvent is between 70% and 83% by weight relative to a total weight of the ink, the ink includes a pigment, a resin, a separating agent and, additives,
wherein the separating agent is a mixture of an alkyl carboxylic acid ester and an ester of pentaerythritol, wherein the alkyl carboxylic acid ester is between 8% and 12% by weight relative to a total weight of the ink and the ester of pentaerythritol is between 2% and 10% by weight relative to a total weight of the ink, and
wherein the dry-erase ink is without polyoxyethylene-polyoxypropylene alkyl ether and without a polyoxyethylene alkylphenyl ether phosphate.