Natural Source-type Polyamide (e.g., Casein, Gelatin, Etc.) Patents (Class 428/478.2)
  • Patent number: 6451431
    Abstract: A photographic support comprising; a polyester base having a first and a second side; an antistatic layer superposed on the first side of the base; a gelatin layer superposed on the second side of the base; and an auxiliary layer overlying said antistatic layer comprising 20 to 80 percent by weight hydroxypropyl methyl cellulose and a second binder.
    Type: Grant
    Filed: May 14, 2001
    Date of Patent: September 17, 2002
    Assignee: Eastman Kodak Company
    Inventors: Brian K. Brady, Charles L. Bauer, Dennis J. Eichorst, Bradley K. Coltrain
  • Publication number: 20020122951
    Abstract: An imaging support comprising: a polyester support; an adhesive layer superposed to said support; and on the adhesive layer: an amine modified gelatin subbing layer, the amine modified gelatin having the formula: 1
    Type: Application
    Filed: May 14, 2001
    Publication date: September 5, 2002
    Applicant: Eastman Kodak Company
    Inventors: Charles L. Bauer, Janglin Chen, Kenneth G. Harbison, Hwei-Ling Yau
  • Patent number: 6420016
    Abstract: A recording sheet for ink jet printing comprising a support having coated onto said support at least one ink receiving layer and a gelatin containing absorption layer, characterized in that the absorption layer is situated between the support and the ink receiving layer and that it comprises a micelle forming compound selected from salts of branched or unbranched alkyl sulfates of formula CnH2n+1OSO3H, wherein n is from 5 to 25; salts of branched or unbranched alkyl phosphates of formula CnH2n+1OPO3H2, wherein n is from 5 to 25; substituted phenols of general formula (I)  wherein n is from 18 to 50; or salts of substituted phenols of general formula (II)  wherein n is from 5 to 55.
    Type: Grant
    Filed: July 23, 1999
    Date of Patent: July 16, 2002
    Assignee: Ilford Imaging Switzerland GmbH
    Inventors: Karl Peternell, Rolf Steiger
  • Patent number: 6420044
    Abstract: A masterbatch concentrate for addition to a fiber-forming polyamide to form an acid dye stain-resistant polyamide includes a carrier and a reagent, the reagent having the formula: and can be an alkali metal, an alkaline earth metal or a transition metal salt of 5-sulfoisophthalic acid. The carrier can be (A) a terpolymer of an alpha-monoolefin, ethylene -&agr;, &bgr; unsaturated carboxylic acid ester and an internal anhydride of an ethylenically unsaturated carboxylic acid. It can alternatively be (B) a semi-crystalline thermoplastic polyester, (c) a semi-crystalline thermoplastic polyamide, or mixtures of (B) and C).
    Type: Grant
    Filed: April 12, 2000
    Date of Patent: July 16, 2002
    Assignee: Prisma Fibers, Inc.
    Inventor: Matthew Benjamin Studholme
  • Patent number: 6303212
    Abstract: An ink jet recording element comprising a support having thereon an image-recording layer comprising a binder and a polymeric mordant, the image-recording layer providing a total concentration of charged polymeric binding sites greater than about 3×1026/m3, and the image-receiving layer having a concentration of salts providing charges, opposite to the charge of the binding sites, of less than about 5.8×1026 charges/m3, the salt having a molecular weight of less than 10,000 grams/mole.
    Type: Grant
    Filed: September 13, 1999
    Date of Patent: October 16, 2001
    Assignee: Eastman Kodak Company
    Inventors: Lori Shaw-Klein, Peter J. Ghyzel
  • Patent number: 6300047
    Abstract: The present invention relates to a support base for light-sensitive photographic elements. In particular, the present invention relates to a support base comprising a support having coated thereon at least two antihalation layers overcoated by a protective layer. The support base for light-sensitive photographic elements of the present invention presents an improved coating quality with a reduced formation of mottle, defined as an irregularly patterned defect due to the tendency of the coated layers to reproduce any deformation present on the support.
    Type: Grant
    Filed: May 23, 2000
    Date of Patent: October 9, 2001
    Inventors: Wilma Massucco, Domenico Marinelli, Piero Cavalleri
  • Patent number: 6207283
    Abstract: A polymer of the formula (I): in which X1 means H or (R1)1+1—L1CO—, X2 means —(L2)m—OH or R1 means —COO−M+, —SO3−M+ or (M+)2PO32−, L1 means alkylene, arylene, aralkylene or cycloalkylene, L2 means the residue of a polyether having an average molecular weight of 200 to 3000 (number average), M+ means a cation, l means a number from 0 to 4, m means a number 0 or 1 and n means a number from 0 to 20, wherein m+n is ≧1.
    Type: Grant
    Filed: November 3, 1998
    Date of Patent: March 27, 2001
    Assignee: Agfa-Gevaert
    Inventors: Peter Bell, Günter Helling, Beate Weber, Ralf Büscher, Lothar Endres, Lothar Rosenhahn, Rainer Scheerer, Lydia Simon, Thomas Stetzer
  • Patent number: 6194077
    Abstract: The present invention provides a water-insoluble ink receptive coating comprising a gelatin, a water-insoluble quaternary cationic polymer, which are crosslinked together by a multifunctional cross-linking agent to form a water-insoluble ink receptive coating layer for ink jet recording. The ink receptive coatings can additionally contain a pigment to make a matte or glossy medium with no tacky feel.
    Type: Grant
    Filed: November 6, 1998
    Date of Patent: February 27, 2001
    Assignee: Arkwright Incorporated
    Inventors: Shengmei Yuan, Khanh Nguyen, Steven J. Sargeant
  • Patent number: 6194075
    Abstract: A water insoluble absorbent coating material comprising a water-insoluble network prepared by combining at least one silicon-containing monomer, at least one water- and solvent-soluble polymer, and, optionally, at least one acidic catalytic component, is provided. A water-insoluble absorbent coating material suitable for use as an ink receptive coating layer in an ink jet film is also provided as are ink jet recording media containing such ink receptive coating layers.
    Type: Grant
    Filed: June 11, 1998
    Date of Patent: February 27, 2001
    Assignee: Arkwright, Incorporated
    Inventors: Steven J. Sargeant, Shengmei Yuan, Yang Chen
  • Patent number: 6183845
    Abstract: A device, and a method for forming a softgel having multiple gelatin layers and softgels having multiple gelatin layers are disclosed. In particular there is provided a device for forming a gelatin sheet having at least two gelatin layers. Each gelatin layer has a thickness. The device comprises a gelatin spreader box which includes at least one opening for extruding a gelatin sheet. The device also includes a first and a second height adjustable gate disposed at least partially across the opening; and a first and a second height adjustment control. Adjustment of the first height adjustment control varies the height of the first gate and adjustment of the second height adjustment control varies the height of the second gate, thereby controlling the thickness of the at least two gelatin layers.
    Type: Grant
    Filed: May 26, 1999
    Date of Patent: February 6, 2001
    Assignee: Banner Pharmacaps, Inc.
    Inventor: Lee Ikemoto
  • Patent number: 6180213
    Abstract: Disclosed is a heat sensitive planographic printing plate material comprising a support and provided thereon, a heat sensitive layer containing 10 to 98 weight % of at least one hydrophilic resin selected from the group consisting of gelatin, polyvinyl alcohol and carboxymethyl cellulose, and 2 to 50 weight % of a cross-linking agent cross-linking the hydrophilic resin.
    Type: Grant
    Filed: September 14, 1998
    Date of Patent: January 30, 2001
    Assignee: Konica Corporation
    Inventors: Takaaki Kuroki, Yasuo Kojima, Saburou Hiraoka, Takeo Akiyama
  • Patent number: 6180227
    Abstract: The invention relates to an imaging member comprising at least one image receiving layer and an integral base material comprising at least one polyester layer and an upper surface layer comprising a polyester or polyolefin polymer and a bluing tint wherein said integral base material has a spectral transmission of greater than 90%.
    Type: Grant
    Filed: December 21, 1998
    Date of Patent: January 30, 2001
    Assignee: Eastman Kodak Company
    Inventors: Robert P. Bourdelais, Peter T. Aylward, Thomas M. Laney, Alphonse D. Camp
  • Patent number: 6174611
    Abstract: A recording medium and a recording method are provided which can realize an image having excellent storage stability. An ink composition comprising a colorant of at least one dye selected from the group consisting of a stilbene azo dye, a triphenylmethane dye, and a xanthene dye is used, and the recording medium having a recording layer comprising silica and a binder, wherein the binder comprises a polymer component, 5 to 55% by weight of a polymer component of the binder is a styrene/butadiene latex, and 20 to 45% by weight of the styrene/butadiene latex is derived from a butadiene monomer.
    Type: Grant
    Filed: April 19, 1996
    Date of Patent: January 16, 2001
    Assignees: Seiko Epson Corporation, Nippon Paper Industries, Co.
    Inventors: Akio Owatari, Hiroyuki Onishi, Junichi Iida, Yukio Kobayashi, Yoshihiro Kuroyama, Hiroki Midorikawa