公开(公告)号：US3861920A

公开(公告)日：1975-01-21

申请号：US43022374

申请日：1974-01-02

Applicant: POLAROID CORP

Inventor： BORROR ALAN L ,  HILL RUTH LINDA ,  REID JEROME L

IPC: G03C1/29 ,  G03C1/40 ,  G03C1/14

CPC classification number: G03C1/29

Abstract: A photosensitive silver halide emulsion is disclosed which is spectrally sensitized with a dye combination comprising a symmetrical benzoxazolocarbocyanine dye of the formula:

WHEREIN R represents hydrogen or a lower alkyl group possessing from 1 to 3 carbon atoms, inclusive; and each R1 represents a carboxyalkyl or sulfoalkyl group possessing from 1 to 4 carbon atoms, inclusive, in the alkylene chain; Y represents an anion; and n represents 0 or 1, with n 0 in the inner salt form of the dye; and an unsymmetrical benzimidazolocarbocyanine dye of the formula:

WHEREIN Y and n possess the same meaning as in Formula I; X is S or Se; R2 is a lower alkyl group possessing from 1 to 3 carbon atoms inclusive; R3 and R4 are the same or different and represent a carboxyalkyl or sulfoalkyl group, each possessing from 1 to 4 carbon atoms, inclusive, in the alkylene chain, or a lower alkyl group, with at least one of R3 and R4 being said carboxyalkyl or sulfoalkyl group; R5 is halogen, cyano, or lower carboxyalkyl; R6 is hydrogen or halogen; and Z represents the non-metallic atoms necessary to complete a benzothiazole or benzoselenazole nucleus.

Abstract translation: 公开了一种感光卤化银乳剂，其用染料组合进行光谱增感，染料组合包含下式的对称苯并恶唑碳花青染料：

公开(公告)号：US3926971A

公开(公告)日：1975-12-16

申请号：US47227374

申请日：1974-05-22

Applicant: POLAROID CORP

Inventor： BORROR ALAN L ,  HILL RUTH LINDA ,  GARCIA PAULINA P

IPC: C07D233/14 ,  C09B23/06 ,  C07D233/24 ,  C07D417/06 ,  C07D421/06

CPC classification number: C09B23/06 ,  C07D233/14

Abstract: A method is disclosed for preparing 2- Beta -anilinovinyl derivatives of benzimidazolium salts, useful in the preparation of cyanine dyes and related compounds, which comprises condensing a benzimidazolium salt having a reactive methyl group with an alkyl isoformanilide in a glycol ether medium.

Abstract translation: 公开了一种用于制备苯并咪唑鎓盐的2-苯乙烯基乙烯基衍生物的方法，其可用于制备花青染料和相关化合物，其包括将具有反应性甲基的苯并咪唑盐与二醇醚介质中的烷基异丙酰苯缩合。