Aqueous ink binder composition
US6677398B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 1, 2002 |
| Grant date | Jan 13, 2004 |
| Priority date | — |
| Expiry date | Aug 10, 2022 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09D11/107
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
An aqueous ink binder including 30-60%, by weight based on the dry weight of the binder composition, of a first polymer including, as polymerized units, 15-75%, by weight based on the weight of the first polymer, ethylenically unsaturated carboxylic acid monomer having a pKa from 2.0 to 4.6, the first polymer having a calculated Hansch parameter from 1.3 to 2.1, and 70-40%, by weight based on the dry weight of the binder composition, of a second polymer, the second polymer being an aqueous emulsion polymer is provided. Also provides are a clear or pigmented ink composition and a method for providing an ink which has press resolublility and, as a dry film, water resistance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.