公开(公告)号：US3929797A

公开(公告)日：1975-12-30

申请号：US45469274

申请日：1974-03-25

Applicant: POLAROID CORP

Inventor： BORROR ALAN L ,  GARCIA PAULINA P

IPC: G03C8/48 ,  C07D215/32

CPC classification number: G03C8/48

Abstract: This invention relates to a class of phthalein indicator dyes useful as optical filter agents in photographic processes to protect a selectively exposed photosensitive material from further exposure during processing in the presence of incident light. Such dyes comprise 3,3-disubstituted phthalides and 3,3disubstituted naphthalides wherein the 3,3 substituents are 8''hydroxy-5''-quinolyl radicals.

Abstract translation: 本发明涉及一种在摄影过程中用作光学过滤剂的酞类指示剂染料，以在入射光的存在下保护选择性曝光的感光材料免于进一步曝光。 这样的染料包括3,3-二取代的苯酞和3,3-二取代的萘，其中3,3个取代基是8'-羟基-5'-喹啉基。

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。

公开(公告)号：US3929829A

公开(公告)日：1975-12-30

申请号：US45469374

申请日：1974-03-25

Applicant: POLAROID CORP

Inventor： BORROR ALAN L

IPC: C07D491/052 ,  C09B11/02 ,  C09B11/28 ,  G03C8/48 ,  C07D209/14

CPC classification number: G03C8/48 ,  C09B11/02 ,  C09B11/28

Abstract: This invention relates to a new class of pH sensitive indicator dyes useful as optical filter agents in photographic processes to protect a selectively exposed photosensitive material from further exposure during processing in the presence of incident light. Such dyes contain a phenolate group as the ring-closing moiety and are represented by the compounds

WHEREIN R is hydrogen, alkyl, aryl, aralkyl or alkaryl, R1 and R2 the same are hydrogen, chloro or nitro, and R3 is hydrogen, carboxy, sulfonamido, sulfamoyl or alkoxy.

Abstract translation: 本发明涉及一类新的pH敏感指示剂染料，其用作照相过程中的光学过滤剂，以在入射光的存在下保护选择性曝光的感光材料免于进一步曝光。 这样的染料含有酚盐基团作为闭环部分，并且由化合物WHEREIN R表示氢，烷基，芳基，芳烷基或烷芳基，R1和R2相同是氢，氯或硝基，R3是氢，羧基， 亚磺酰氨基，氨磺酰基或烷氧基。

公开(公告)号：US3702244A

公开(公告)日：1972-11-07

申请号：US3702244D

申请日：1971-01-21

Applicant: POLAROID CORP

Inventor： BLOOM STANLEY M ,  BORROR ALAN L ,  HUYFFER PAUL S ,  MACGREGOR PAUL T

IPC: C09B11/08 ,  G03C8/48 ,  G03C7/00 ,  G03C1/40 ,  G03C5/54

CPC classification number: G03C8/48 ,  C09B11/08

Abstract: THIS INVENTION RELATES TO PHOTOGRAPHY, AND MORE PARTICULARLY, IT RELATES TO THE USE OF CERTAIN INDICATOR DYES DERIVED FROM INDOLES AS OPTICAL FILTER AGENTS TO PROTECT A SELECTIVELY EXPOSED PHOTOSENSITIVE MATERIAL FROM POSTEXPOSURE FOGGING IN PHOTOGRAPHIC PROCESSES WHERE DEVELOPMENT OF THE PHOTOSENSITIVE MATERIAL IS CONDUCTED IN THE PRESENCE OF EXTRANEOUS INCIDENT LIGHT. THESE INDICATOR DYES CONTAIN AN INDOLE RADICAL, A SECOND AROMATIC RADICAL AND A RING-CLOSING MOIETY BONDED TO THE AROMATIC RADICAL AND TO THE 2- OR 3-POSITION OF THE INDOLE RADICAL. AT A FIRST PH THEY HAVE A HIGHLY COLORED, LIGHT-ABSORBING FORM CAPABLE OF ABSORBING RADIATION WITHIN A PREDETERMINED WAVELENGTH RANGE IS THE SHORTER WAVELENGTH REGION OF THE VISIBLE SPECTRUM AND AT A SECOND PH HAVE A COLORLESS FORM THAT IS SUBSTANTIALLY NON-LIGHT-ABSORBING IN THE VISIBLE

SPECTRUM. BY SELECTING A DYE FROM THIS CLASS WHICH IS IN ITS LIGHT-ABSORBING FORM AT THE PH AT WHICH DEVELOPMENT IS PERFORMED, PROTECTION OF THE EXPOSED PHOTOSENSITIVE MATERIAL FROM RADIATION ACTINIC THERETO IS AFFORDED WITHIN THE WAVELENGTH RANGE ABSORBED BY THE DYE AND SUBSEQUENT TO AT LEAST THE INITIAL STAGES OF DEVELOPMENT, THE DYE MAY BE RENDERED SUBSTANTIALLY COLORLESS BY ADJUSTING THE PH TO PERMIT VIEWING OF THE FINAL IMAGE.