Radiation imagery chemistry: process – composition – or product th – Imaging affecting physical property of radiation sensitive... – Radiation sensitive composition or product or process of making
Reexamination Certificate
2005-05-24
2005-05-24
Hamilton, Cynthia (Department: 1752)
Radiation imagery chemistry: process, composition, or product th
Imaging affecting physical property of radiation sensitive...
Radiation sensitive composition or product or process of making
Reexamination Certificate
active
06897006
ABSTRACT:
The invention discloses a multilayered photosensitive material for processing into a flexographic printing plate by direct patterning with an infrared laser beam. The multilayered material comprises: (A) a substrate; (B) a photosensitive resinous layer having sensitivity to light excepting infrared light and comprising (b1) an elastomeric binder resin, (b2) a polymerizable monomeric compound and (b3) a polymerization initiator formed on the substrate (A); (C) a barrier layer of a composition comprising a resin such as a polyvinyl pyrrolidone and alkali-soluble cellulose compounds, which transmits light other than infrared light and is removable in the development treatment, formed on the photosensitive resinous layer (B); and (D) a masking layer of a composition comprising (d1) a film-forming binder resin, (d2) an infrared absorbing compound and (d3) a compound having no transmissivity to lights other than infrared light and removable by irradiation with an infrared laser beam, formed on the barrier layer (C).
REFERENCES:
patent: 3458311 (1969-07-01), Alles
patent: 4148658 (1979-04-01), Kondoh et al.
patent: 4177074 (1979-12-01), Proskow
patent: 4361640 (1982-11-01), Pine
patent: 4419438 (1983-12-01), Etoh et al.
patent: 4442302 (1984-04-01), Pohl
patent: 4517279 (1985-05-01), Worns
patent: 4855212 (1989-08-01), Tate et al.
patent: 5262275 (1993-11-01), Fan
patent: 5607814 (1997-03-01), Fan et al.
patent: 5994032 (1999-11-01), Goffing et al.
patent: 6020108 (2000-02-01), Goffing et al.
patent: 0 741 330 (1996-11-01), None
patent: 1441339 (1976-06-01), None
patent: 47-31705 (1972-11-01), None
patent: 62-11851 (1987-01-01), None
patent: 9403838 (1994-02-01), None
patent: 9616356 (1996-05-01), None
Cadogan et al, “Plasticizers, Abstract (1 page)”,“2. Types of Plasticizers (5 pages)”, from www.mrw.interscience.wiley.com/kirk/articles/pascado.a01, Kirk-Othmer Encyclopedia of CHemical Technology, copyright 199 by John Wiley & Sons, Inc.
Fujimoto Takashi
Ohta Katsuyuki
Seki Norio
Takagi Toshiya
Hamilton Cynthia
Tokyo Ohka Kogyo Co. Ltd.
Wenderoth , Lind & Ponack, L.L.P.
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