| US 7,579,388 B2 | ||
| Radiation curable ink compositions and applications thereof | ||
| Laura A. Kiefer, Elkins, N.H. (US) | ||
| Assigned to Electronics for Imaging, Inc., Foster City, Calif. (US) | ||
| Filed on Apr. 27, 2008, as Appl. No. 12/110,331. | ||
| Application 12/110331 is a continuation of application No. 10/986561, filed on Nov. 10, 2004, granted, now 7,365,105. | ||
| Claims priority of provisional application 60/519200, filed on Nov. 12, 2003. | ||
| Prior Publication US 2008/0226833 A1, Sep. 18, 2008 | ||
| This patent is subject to a terminal disclaimer. | ||
| Int. Cl. C09D 11/00 (2006.01); C09D 11/10 (2006.01); C08F 2/46 (2006.01); C08F 2/50 (2006.01) | ||
| U.S. Cl. 522—121 [522/113; 522/114; 522/120; 522/178; 522/153; 522/104; 522/106; 522/107; 522/182; 427/508; 427/511; 427/514; 427/510] | 20 Claims |
| 1. A printing method comprising:
a) depositing a curable ink composition from an inkjet print head onto a substrate, wherein the ink composition comprises:
i. a first curable component that is present in the ink composition in an amount greater than 30 weight percent, has a functionality
that is greater than 2 and a molecular weight in the range of from about 400 g/mole to about 10,000 g/mole, wherein the first
curable component includes any of: (1) a hyperbranched or a dendridic acrylate oligomer; or (2) a polyester tetraacrylate
oligomer;
ii. a second curable component that has a functionality that is less than or equal to 2; and
iii. an initiator component; and
b) curing the ink composition.
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