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:
Feb. 17, 1976
Filed:
Mar. 31, 1975
Masakazu Yoneyama, Minami-ashigara, JA;
Nobuo Yamamoto, Minami-ashigara, JA;
Naohiko Sugimoto, Minami-ashigara, JA;
Ikutaro Horie, Minami-ashigara, JA;
Yasuhiro Nakayama, Fujimiya, JA;
Fuji Photo Film Co., Ltd., Minami-ashigara, JA;
Abstract
An antistatic photographic sensitive material comprising a support having thereon at least one silver halide emulsion layer, wherein a surface active copolymer containing in the main chain a repeating unit represented by the formula (I) ##EQU1## wherein Y represents an organic residue having 4 to 22 carbon atoms; n represents the average number of ethyleneoxy units and is 1 to 100; and M represents a hydrogen atom, an alkali metal atom, an alkaline earth metal atom, an ammonium group or an alkylammonium group is present in at least one of a surface of the support and a photographic layer.