FLUORINATED AROMATIC ACETAL POLYMERS AND PHOTOSENSITIVE COMPOSITIONS CONTAINING SUCH POLYMERS
申请人:Kodak Polychrome Graphics L.L.C.
公开号:US20020146633A1
公开(公告)日:2002-10-10
A novel fluorinated aromatic acetal polymer comprises at least one unit of A and at least one unit of B or C, or at least one unit of each of A, B and C and optionally further comprises at least one unit of either D or E or at least one unit of each of D and E, wherein the units A and B and/or C, and optionally D and/or E are linked together by single covalent C-C bonds and have the formulae:
1
wherein R
A
is H or C
1
-C
11
alkyl, or an aryl group that does not contain fluorine, and R
B
and R
C
are an aryl groups that contain fluorine. The polymer is prepared by reacting a hydrolyzed polyvinyl acetate polymer or copolymer with at least one non-fluorinated aldehyde component, and at least one fluorinated aromatic component. The polymer is useful is preparing a photosensitive composition which comprises at least one diazo resin and at least one such fluorinated aromatic acetal polymer. Such a photosensitive composition may be applied to a support to form an imageable member which may be imaged to form a lithographic printing plates.p
一种新型氟化芳香族缩醛聚合物包含至少一个 A 单元和至少一个 B 或 C 单元,或 A、B 和 C 中各自的至少一个单元,并可选地进一步包含至少一个 D 或 E 单元,或 D 和 E 中各自的至少一个单元,其中单元 A 和 B 和/或 C,以及可选的 D 和/或 E 通过单个共价 C-C 键连接在一起,并具有以下式子:
1
其中 R
A
是 H 或 C
1
-C
11
烷基或不含氟的芳基,以及 R
B
和 R
C
是含氟的芳基。该聚合物的制备方法是将水解聚醋酸乙烯酯聚合物或共聚物与至少一种非氟化醛组分和至少一种氟化芳香组分反应。这种聚合物可用于制备光敏组合物,其中包括至少一种重氮树脂和至少一种此类氟化芳香族缩醛聚合物。这样的光敏组合物可涂在支撑物上形成可成像部件,该部件可成像以形成平版印刷板。