The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 13, 1994
Filed:
Oct. 06, 1993
James A Foley, Wellesley, MA (US);
Nicholas S Hadzekyriakides, Arlington, MA (US);
James J Reardon, Winchester, MA (US);
Polaroid Corporation, Cambridge, MA (US);
Abstract
An image-receiving element for use in photographic diffusion transfer film units of the type wherein the image-receiving element, which includes an image-receiving layer, is designed to be removed, or 'peeled-apart', from a photosensitive element after exposure and development have been carried out. The image-receiving element includes a strip-coat layer comprising a hydrophilic colloid, such as gum arabic, and an aluminum salt which overlies the image-receiving layer and significantly reduces striations and/or haze and facilitates the separation of the image-receiving element from the remainder of the film unit subsequent to diffusion transfer photography.