Radiation imagery chemistry: process – composition – or product th – Imaging affecting physical property of radiation sensitive... – Making printing plates
Reexamination Certificate
2005-07-19
2005-07-19
Hamilton, Cynthia (Department: 1752)
Radiation imagery chemistry: process, composition, or product th
Imaging affecting physical property of radiation sensitive...
Making printing plates
C430S309000, C430S019000, C101S465000, C101S466000, C101S467000
Reexamination Certificate
active
06919165
ABSTRACT:
A method for producing a pattern of hydrophilic (34) and hydrophobic (32) regions on a printing form (30) is presented which, in a first, essentially unpatterned state, features a polymer material containing imide groups, for example, polybenzene diimide or polyamide imide. The method includes a chemical treatment of the surface with an oxidizing agent subsequent in time to a locally selective exposure with UV light. Optionally, the locally selective exposure can be preceded by a large-area chemical treatment of the surface with a strong base. The printing form (30) can be restored to the first state by a large-area chemical treatment of the surface with a strong acid. The patterned printing form (30) is suitable for use in offset printing.
REFERENCES:
patent: 4568632 (1986-02-01), Blum et al.
patent: 4634659 (1987-01-01), Esumi et al.
patent: 4693958 (1987-09-01), Schwartz et al.
patent: 4999251 (1991-03-01), Foust et al.
patent: 5288519 (1994-02-01), Baumgartner et al.
patent: 6162578 (2000-12-01), Zheng et al.
patent: 6318264 (2001-11-01), D'Heureuse et al.
patent: 103 977 (1974-02-01), None
patent: 69130607 (1998-12-01), None
patent: 19959633 (2000-06-01), None
patent: 10042293 (2001-03-01), None
patent: 0 743 177 (1996-11-01), None
patent: 0 872 339 (1998-10-01), None
patent: 0521904 (1998-12-01), None
patent: 0911154 (1999-04-01), None
patent: 04 193956 (1990-11-01), None
patent: 4-356387 (1992-10-01), None
patent: 7-266076 (1996-10-01), None
Yamazaki Akio et al, English Machine translation of JP 07-266076 from Japan Patent Office, copyright 2000 , 11 pages.
124:89419 CA, Chemical Abstracts of JP 07266076 A2, issued Oct. 10, 1995, one page.
Derwent -Acc-No: 1995-389250, Derwent—Week: 200333, Copyrignt 1999 Derwent Informatioin LTD, English abstract of JP 07266076A, 2 pages.
Yamazaki et al, Pat-No: JP407266076A, copyright 1995, JPO, one page.
Derwent -Acc-No: 1993-030456 Week: 199304, Copyrignt 1999 Derwent Informatioin LTD, English abstract of JP JP 04356387A, 2 pages.
Arieli, Rami, The Laser Adventure: The “Virtual School” about “Lasers and their Applications”, at www.phys.ksu.edu/perg/vpq/laserweb, Glossary of laser definitions, 6 pages and Chapter 6.1.8, Exminer lasers p. 2.
Davidson Davidson & Kappel LLC
Hamilton Cynthia
Heidelberger Druckmaschinen AG
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