Fountain solution concentrates
AssigneeRBP Chemical Technology, Inc.
InventorsRaymond J. Hanneman, Jr., Jeffrey G. Behrens, Salvatore R. Viverito
Life of this patent
Estimating the term…
Abstract
Liquid concentrate components of a fountain solution are provided, including a liquid film-forming fountain solution concentrate and a liquid surface-tension reducing fountain solution concentrate. The concentrates and water can be combined together to form a fountain solution composition.
Claims8
A liquid surface-tension reducing precursor concentrate for a fountain solution, comprising:
- diluent at greater than 0% by wt to up to about 80% by wt selected from the group consisting of glycols and water-soluble glycol ethers, about 1–25% by wt solvent selected from the group consisting of partially water-soluble glycol ethers, esters, glycols, and alcohols, about 1–50% by wt nonionic surfactant, and water up to about 10% by wt, and excluding a film-forming polymer component.
A liquid surface-tension reducing precursor concentrate for a fountain solution, comprising:
- diluent at greater than 0% by wt to up to about 80% by wt selected from the group consisting of glycols and water-soluble glycol ethers, about 1–25% by wt solvent selected from the group consisting of partially water-soluble glycol ethers, esters, glycols, and alcohols, about 1–50% by wt surfactant, and water up to about 10% by wt, the water being derived from ingredient components, and excluding a film-forming polymer component.
A liquid film-forming precursor concentrate for a fountain solution, comprising:
- about 20–40% by wt sodium carboxymethyl cellulose;
- about 20–30% by wt organic acid selected from the group consisting of gluconic acid, glycolic acid, and sulfamic acid;
- about 10–20% by wt inorganic acid selected from the group consisting of phosphorous acid and nitric acid;
- about 10–20% by wt buffering agent selected from the group consisting of organic amines and alkali compounds;
- about 10–20% by wt water-soluble glycol solvent;
- and
- water at less than 30% by wt;
- the concentrate having a pH of about 3.5–5.5.
A liquid surface-tension reducing precursor concentrate for a fountain solution, comprising:
- about 30–40% by wt glycol, about 25–35% by wt water-soluble glycol ether, about 10–30% by wt nonionic surfactant, and about 5–20% by wt solvent selected from the group consisting of partially water-soluble glycol ether, ester, glycol, and alcohol.
A liquid surface-tension reducing precursor concentrate for a fountain solution, comprising:
- about 30–40% by wt ethylene glycol n-butyl ether;
- about 25–35% by wt polyethylene glycol;
- about 10–30% by wt nonionic surfactant selected from the group consisting of acetylenic glycols and alkyl pyrrolidones;
- and
- about 5–20% by wt solvent selected from the group consisting of partially water-soluble glycol ethers and esters.
Dependencies are inferred from the claim text.