Radiation imagery chemistry: process – composition – or product th – Electric or magnetic imagery – e.g. – xerography,... – To produce printing surface
Patent
1998-03-20
1999-08-31
Duda, Kathleen
Radiation imagery chemistry: process, composition, or product th
Electric or magnetic imagery, e.g., xerography,...
To produce printing surface
430 56, 430 60, 430 62, 428480, G03G 1326
Patent
active
RE0362875
ABSTRACT:
A lithographic plate includes a substrate made of a polyester film having a light transmittance of 50% or less, a bending angle in the range of 30.degree. to 90.degree., and a rupture strength after being bent of 8 kg/mm.sup.2 or more. Alternatively, a lithographic plate includes a substrate made of a polymer film containing a polyester and a thermoplastic resin incompatible with the polyester, wherein the polymer film is oriented along at least one axis and has minute cavities formed by the orientation, and the density of the film is in the range of 1.05 g/cm.sup.3 to 1.3 g/cm.sup.3.
REFERENCES:
patent: 4609606 (1986-09-01), Noonan
patent: 4719162 (1988-01-01), Nakano
Abe Kazuhiro
Furuya Yoshikazu
Ito Katsuya
Iwai Taishi
Kobayashi Ryoya
Duda Kathleen
Toyo Boseki Kabushiki Kaisha
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