Non-solvent very low VOC formulation for removal of ink from printing presses and the like, and methods of using the same
US6569260B2 · kind B2 · utility
1Cited by
13References
2Claims
0Family size
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Key dates
| Filing date | Jun 19, 2002 |
| Grant date | May 27, 2003 |
| Priority date | — |
| Expiry date | Jun 19, 2022 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC11D3/33
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A water-based formulation for the removal of ink comprising a detergent builder including sodium carbonate, neutralized polyacrylic acid, and an acrylic acid/maleic anhydride copolymer; a chelating agent including tetrasodium ethylenediaminetetraacetate and ethylenediaminetetraacetic acid; and a detergent/emulsifier including C9-11 Pareth 8, C6-12 Pareth 6, and PEG Cocomonium Chloride.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.