Novel polymers and photographic elements containing same
申请人:Eastman Kodak Company
公开号:US03962527A1
公开(公告)日:1976-06-08
Polymers comprising quaternary nitrogen atoms and at least two aromatic nuclei in the polymer cation for each quaternary nitrogen atom are described. In one embodiment at least 1/3 of the units of said polymer comprise quaternary nitrogen atoms. In another embodiment polymers comprising at least two aromatic nuclei in the polymer cation, such as aryl groups, for each quaternary nitrogen atom can be used in photograhic elements to provide excellent mordants for dyes.