| US 7,511,085 B2 | ||
| Liquid printing inks for flexographic and/or intaglio printing comprising hyperbranched polymers as the vehicle | ||
| Bernd Bruchmann, Freinsheim (Germany); Joelle Bedat, Strasbourg (France); Jürgen Kaczun, Niederkirchen (Germany); and Peter Poganiuch, Neustadt (Germany) | ||
| Assigned to BASF Aktiengesellschaft, Ludwigshafen (Germany); and XSYS Print Solutions Deutschland GmbH, Stuttgart (Germany) | ||
| Appl. No. 10/399,255 PCT Filed Oct. 30, 2001, PCT No. PCT/EP01/12520 § 371(c)(1), (2), (4) Date Apr. 14, 2003, PCT Pub. No. WO02/36697, PCT Pub. Date May 10, 2002. |
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| Claims priority of application No. 100 53 862 (DE), filed on Oct. 31, 2000; and application No. 101 26 201 (DE), filed on May 30, 2001. | ||
| Prior Publication US 2004/0024087 A1, Feb. 05, 2004 | ||
| This patent is subject to a terminal disclaimer. | ||
| Int. Cl. C09D 11/00 (2006.01) | ||
| U.S. Cl. 523—160 [523/161; 524/555; 524/589; 524/590; 524/601; 524/612] | 11 Claims |
| 1. A liquid printing ink for flexographic and/or gravure printing, comprising
a) one or more binders,
b) a solvent or a mixture of different solvents,
c) one or more colorants, and optionally further additives, whereinthe one or more binders (a) constitute from 5 to 30% by weight of the printing ink and at least one of the binders is a hyperbranched
polymer which has a non-unifom molecular composition and structure has functional groups, and is a hyperbranched polyether
or a hyperbranched polyetheramide,the solvent or the mixture of different solvents (b) constitutes from 50 to 80% by weight of the printing ink, and any solvent
as well as any mixture of different solvents is selected from the group consisting of hydrocarbons, alcohols, substituted
alcohols, esters and mixtures thereof, andthe one or more colorants (c) constitute from 5 to 25% by weight of the printing ink,and the ink comprises no water.
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