公开(公告)号：US3762927A

公开(公告)日：1973-10-02

申请号：US3762927D

申请日：1971-09-30

Applicant: POLAROID CORP

Inventor： HAAS H

IPC: G03C1/053 ,  G03C1/30

CPC classification number: G03C1/307 ,  G03C1/053

Abstract: WHEREIN: M is hydrogen or methyl; R is an alkylene group comprising less than six carbon atoms or a substituted alkylene group; EACH D is hydrogen, methyl or ethyl; and N IS THE TOTAL NUMBER OF A and B residues in the polymer chain. The copolymers are useful as hardeners for protein-containing emulsions, especially, for example, gelatin emulsions employed in the photographic art. The copolymers of the present invention can also be advantageously employed to selectively adjust the viscosity of protein-containing emulsions to predetermined levels.

A copolymer soluble in aqueous and/or partially aqueous solution and having a chain comprising the entities A and B defined below:

公开(公告)号：US3816125A

公开(公告)日：1974-06-11

申请号：US26353972

申请日：1972-06-16

Applicant: POLAROID CORP

Inventor： DEMEMBER J ,  HAAS H ,  REID J

IPC: G03C8/36 ,  G03C8/02 ,  G03C8/08 ,  G03C7/00 ,  G03C1/10 ,  G03C1/40 ,  G03C5/54

CPC classification number: G03C8/02

Abstract: The present invention is directed to photography and particularly to diffusion transfer color processes wherein the color separation and highlights are significantly enhanced by carrying out said process in the presence of an onium salt of a polymeric anion.

Abstract translation: 本发明涉及摄影，特别涉及扩散转移色彩方法，其中通过在聚合阴离子的鎓盐的存在下进行所述方法，显着增强了颜色分离和亮度。

公开(公告)号：US3816127A

公开(公告)日：1974-06-11

申请号：US27097372

申请日：1972-07-12

Applicant: POLAROID CORP

Inventor： HAAS H

IPC: G03C8/08 ,  G03C8/28 ,  G03C9/04 ,  G03C5/54

CPC classification number: G03C9/04 ,  G03C8/08 ,  G03C8/28

Abstract: An imaging system wherein an image is formed in terms of optical rotation which comprises exposing a photo-sensitive silver halide emulsion, contacting the exposed emulsion with a layer comprising an optically active polymeric sulfoxide and developing the latent image in the emulsion with a reagent which is a silver halide developing agent and which destroys the optical rotation provided by the sulfoxide group. An image is thus formed in the layer superposed on the emulsion layer by destruction of the optical rotation of the sulfoxide by contact with unexhausted developer. The image is viewed between rotatable polarizers.

Abstract translation: 一种成像系统，其中以光学旋转形成图像，该成像系统包括曝光感光卤化银乳剂，将暴露的乳液与包含光学活性聚合物亚砜的层接触，并用乳液中的潜像显影， 卤化银显影剂，并且其破坏由亚砜基团提供的旋光性。 因此，通过与未用尽的显影剂接触而破坏亚砜的旋转旋转，因此在叠层在乳剂层上的层中形成图像。 在可旋转偏振器之间观察图像。

公开(公告)号：US3729314A

公开(公告)日：1973-04-24

申请号：US3729314D

申请日：1969-12-18

Applicant: POLAROID CORP

Inventor： HAAS H

IPC: C07D213/20 ,  C07D215/10 ,  G03C5/30 ,  G03C8/16 ,  G03C11/12

CPC classification number: C07D213/20 ,  C07D215/10 ,  G03C5/3021 ,  G03C8/16 ,  Y10S430/142

Abstract: A NOVEL IMAGE FORMING SYSTEM COMPRISING GORMING AN IMAGEWISE DISTRIBUTION OF A MORDANT IN THE DEVELOPED AREAS OF AN EXPOSED PHOTOSENSITIVE LAYER, MORDANTING DYE IN SAID AREAS, AND FORMING A REVERSE IMAGE IN TERMS OF DYE TRANSFERRED BY DIFFUSION FROM UNDEVELOPED AREAS OF THE PHOTOSENSITIVE LAYER TO AN IMAGE-RECEIVING LAYER.

公开(公告)号：US3833367A

公开(公告)日：1974-09-03

申请号：US24984972

申请日：1972-05-03

Applicant: POLAROID CORP

Inventor： HAAS H

IPC: G03C8/52 ,  G03C7/00 ,  G03C1/40 ,  G03C1/78 ,  G03C5/54

CPC classification number: G03C8/52

Abstract: Novel photograhpic products for use in diffusion transfer systems for forming visible images, particularly systems for forming color images viewable, without separation as color reflection prints, which products include a neutralizing layer for lowering the environmental pH after application of an aqueous alkaline processing fluid, the neutralizing layer being prepared by coating an aqueous solution of a water-soluble cross-linkable acidic polymer on a layer of the film unit including a nondiffusible cross-linking agent for the acidic polymer, whereby to cross-link and thereby harden the thus applied layer of acidic polymer at least at the interface of the respective layers. The non-diffusible cross-linking agent may be the only component of the layer or substrate on which the neutralizing layer is applied or it may be present along with other materials, e.g., as the major component of the substrate.

Abstract translation: 用于形成可见图像的扩散转移系统中的新型光致产品，特别是用于形成可见的彩色图像的系统，不分离为彩色反射印刷品，该产品包括用于在施加碱性水溶液之后降低环境pH的中和层， 中和层通过将水溶性交联性酸性聚合物的水溶液涂布在包含用于酸性聚合物的非扩散性交联剂的膜单元的层上而制备，从而交联并由此硬化 至少在各层的界面处施加酸性聚合物层。 非扩散性交联剂可以是施加中和层的层或基材的唯一组分，或者可以与其它材料一起存在，例如作为基材的主要成分。