Regenerated Or Modified Patents (Class 428/536)
-
Patent number: 5280097Abstract: A laminated product has an organic polymer layer on at least one surface of a substrate of cellulosic material impregnated with polyisocyanate. The substrate is preferably made from substantially delignified cellulosic material and an isocyanate resin. The isocyanate resin comprises a polyisocyanate, preferably PMDI, and may include a miscible organic solvent, preferably one such as propylene carbonate having a high boiling point and low flammability and toxicity. The substrate may be cured with an uncured overlay sheet positioned on the cured substrate and then cured to bond the substrate and overlay. Alternatively, a cured overlay may be adhesively or otherwise secured to a previously cured substrate. As yet another alternative, an uncured overlay sheet and uncured substrate may be placed in position and simultaneously cured. An overlay may be positioned on one or both major surfaces of a substrate sheet.Type: GrantFiled: June 8, 1992Date of Patent: January 18, 1994Assignee: Weyerhaeuser CompanyInventors: Frank R. Hunter, James F. L. Lincoln, David W. Park
-
Patent number: 5230933Abstract: Acid resistant peeling aid compositions and casings, particularly tubular cellulosic food casings, coated therewith, which compositions contain a water-soluble cellulose ether, dextrin and optionally lecithin.Type: GrantFiled: July 11, 1990Date of Patent: July 27, 1993Assignee: Viskase CorporationInventors: Patrick B. Apfeld, Frederick M. Merritt, II
-
Patent number: 5220760Abstract: An insulating sheathing panel has an insulating core, such as foam, sandwiched between PMDI impregnated cover sheets. The resulting panels offer structural reinforcement as well as insulating qualities to a building framework.Type: GrantFiled: March 22, 1991Date of Patent: June 22, 1993Assignee: Weyerhaeuser CompanyInventor: Alkiviadis G. Dimakis
-
Patent number: 5178469Abstract: A collapsible biodegradable container, or bag, for containing liquid-containing solid materials, e.g., compostible materials, such as food waste, yard waste, etc., from restaurants, homes, etc. A single sheet of two-ply material is used to form both the bag side walls, as well as the bag bottom wall. Kraft paper is used to form the bag outer surface, whereas a cellulose film, or cellophane, is used to form the bag inner surface. A slab of moisture-absorbent material is also placed on the bag bottom wall, to intercept liquid draining from the contained material toward the bag bottom wall. The outer paper ply gives the bag its structural strength, so that it can be self-sustaining in an upright condition. The inner cellulose layer, or cellophane ply, provides a liquid barrier to protect the outer paper ply from the destructive effects of liquid. The bag, is also permeable to air and water vapor, while retaining liquids.Type: GrantFiled: November 1, 1991Date of Patent: January 12, 1993Assignee: Woods End Research Laboratory, Inc.Inventor: Jonathan W. Q. Collinson
-
Patent number: 5143133Abstract: A covering for furniture during shipment thereof is comprised of a flexible sheet material constructed of a multiplicity of plys utilizing easily recyclable material and is folded into a configuration having free ends stitched shut whereby the covering may be placed over a furniture item for protection during shipment thereof.Type: GrantFiled: January 21, 1992Date of Patent: September 1, 1992Assignee: U.S. Packaging, Inc.Inventor: Mark C. Speckman
-
Patent number: 5140086Abstract: A method is disclosed for producing a polyureacellulose composite material from substantially delignified cellulosic material and an isocyanate resin. The isocyanate resin comprises a polyisocyanate, preferably PMDI, and a miscible organic solvent, preferably one such as propylene carbonate having a high boiling point and low flammability and toxicity. The composite surprisingly exhibits values of physical parameters that are at least as good as, and sometimes far superior to, corresponding parameters of similar composites made using neat (undiluted) polyisocyanate. Single- and multiple-ply composites can be made, employing only a single curing step.Type: GrantFiled: November 27, 1990Date of Patent: August 18, 1992Assignee: Weyerhaeuser CompanyInventors: Frank R. Hunter, James F. L. Lincoln, David W. Park
-
Patent number: 5137773Abstract: A transparent substrate material for receiving or containing an image comprised of a supporting substrate and a coating composition comprised of a mixture of (a) non ionic celluloses or blends thereof; (b) ionic celluloses or blends thereof; (c) poly(alkylene oxide); and a noncellulosic component selected from the group consisting of (1) poly(imidazoline)quaternized; (2) poly(N,N-dialkyl-dialkylene piperidinium halide); (3) poly(acrylamido alkyl propane sulfonic acid); (4) poly(ethylene imine) epihalohydrin; (5) poly(acrylamide); (6) acrylamide-acrylic acid copolymer; (7) poly(vinyl pyrrolidone); (8) poly(vinyl alcohol); (9) vinyl pyrrolidone-dialkyl aminomethylmethacrylate copolymer quaternized; (10) vinyl pyrrolidone-vinyl acetate copolymer; and mixtures thereof. The substrate may be coated on one, or both sides depending, for example, on its use.Type: GrantFiled: March 2, 1990Date of Patent: August 11, 1992Assignee: Xerox CorporationInventor: Shadi L. Malhotra
-
Patent number: 5116656Abstract: A process and article for enhancing the efficiency of transfer of a perfuming composition between a flexible porous or fibrous element and a fabric during drying of the fabric by incorporating a mixture of methyl abietates, preferably those available under the tradename ABALYN.RTM. or HERCOLYN.RTM., with the perfuming composition and at least one fabric conditioning agent which are carried by the flexible porous or fibrous element.Type: GrantFiled: April 24, 1990Date of Patent: May 26, 1992Assignee: Firmenich SAInventors: Anthony F. Morris, Sina D. Escher
-
Patent number: 5095000Abstract: An image-receiving sheet for use in combination with a heat transfer sheet has a substrate, an image-receiving layer provided thereon, and optionally a layer of a mold releasing agent provided on at least a part of the image-receiving layer. This image-receiving sheet exhibits good mold releasability and also provides a colored image having a high density, resolving power and continuous gradation.Type: GrantFiled: March 2, 1990Date of Patent: March 10, 1992Assignee: Dai Nippon Insatsu Kabushiki KaishaInventors: Sadanobu Kawasaki, Mineo Yamauchi, Masanori Akada
-
Patent number: 5068140Abstract: A transparent substrate material for receiving or containing an image comprised of a supporting substrate, an anticurl coating layer or coatings thereunder, and an ink receiving layer thereover.Type: GrantFiled: August 2, 1989Date of Patent: November 26, 1991Assignee: Xerox CorporationInventors: Shadi L. Malhotra, Maria L. Martins, Maya D. Stevanovic, Arthur Y. Jones
-
Patent number: 5008359Abstract: The invention is a method of making a cellulose based polymeric material and the products of the invention. A cellulosic substrate is impregnated with an essentially uncatalyzed polyfunctinal isocyanate and pressed at elevated temperature and pressure. The substrate may be a chemical or thermomechanical pulp or paper while the isocyanate is preferably diphenylmethane diisocyanate or its oligomers. Pressing conditions are preferably in the range of about 150.degree.-245.degree. C. at pressures in the range of about 2700-8300 kPa for times less than 2 minutes. Moisture content of the cellulosic substrate is not highly critical and may be as high as 7% without adverse effects. The product is especially useful as overlays and for forming strong, water resistant laminates which can be molded in either flat or three dimensional forms.Type: GrantFiled: November 25, 1988Date of Patent: April 16, 1991Assignee: Weyerhaeuser CompanyInventor: Frank R. Hunter
-
Patent number: 4950535Abstract: A magnetic recording medium, comprising a substrate, a ferromagnetic film layer formed on the surface of said substrate, and a back coating layer deposited on the other surface of said substrate and formed of a mixture produced by dispersing a powdered non-magnetic substance in a binder containing therein a thermosetting resin and at least one lubricant selected from the group consisting of fatty acids and fatty acid ester.Type: GrantFiled: December 6, 1988Date of Patent: August 21, 1990Assignee: TDK CorporationInventors: Hiroyuki Arioka, Masharu Nishimatsu, Toshiaki Ide
-
Patent number: 4914018Abstract: An improved antistatic base comprises a polymeric support film having coated thereon in sequence a first antistatic layer comprising a quaternary polyelectrolyte compound and a polymeric hydrophobic binder and a second protective layer comprising a polymeric hydrophobic binder, wherein said quaternary polyelectrolyte compound is a homopolymer or a copolymer of a diallyldialkylammonium salt compound.The antistatic base is particularly useful as a support for light-sensitive silver halide photographic elements.Type: GrantFiled: December 1, 1988Date of Patent: April 3, 1990Assignee: Minnesota Mining and Manufacturing CompanyInventors: Mauro Besio, Alberto Valsecchi
-
Patent number: 4894279Abstract: The present invention provides an improved electroerosin recording medium which comprises, in a preferred embodiment, a non-conductive support, a hard, abrasion resistant layer, preferably comprising an organic polymer matrix containing an inorganic particulate material, a thin conductive film, typically of a metal such as aluminum, and an abrasion resistant overlayer that most preferably comprises a solid conductive lubricant dispersed in an organotitanium regaent modified polymer system. The overlayer is highly adherent to the conductive surface, has a low organic binder content and provides effective protection against abrasion of the conductive layer and fouling of a print head during electroerosion printing.Type: GrantFiled: May 9, 1986Date of Patent: January 16, 1990Assignee: International Business Machines CorporationInventors: Krishna G. Sachdev, Keith S. Pennington, Mitchell S. Cohen
-
Patent number: 4865914Abstract: A transparency comprised of a supporting substrate and thereover a blend comprised of poly(ethylene oxide), and carboxy methyl cellulose together with a component selected from the group consisting of (1) hydroxypropyl cellulose; (2) vinylmethyl ether/maleic acid copolymer; (3) carboxymethyl hydroxyethyl cellulose; (4) hydroxyethyl celluose; (5) acrylamide/acrylic acid copolymer; (6) cellulose sulfate; (7) poly(2-acrylamido-2-methyl propane sulfonic acid); (8) poly(vinyl alcohol); (9) poly(vinyl pyrrolidone); and (10) hydroxypropyl methyl cellulose. In addition, papers with the aforementioned coatings are disclosed herein.Type: GrantFiled: March 20, 1987Date of Patent: September 12, 1989Assignee: Xerox CorporationInventor: Shadi L. Malhotra
-
Patent number: 4721703Abstract: The present invention relates to a sublimation transfer system color hard copy printing paper particularly to prevent effectively the printing paper from being adhered by melt with a dye carrier ribbon when a color hard copying is carried out, transfer dye satisfactorily and present excellent color. To this end, the sublimation transfer system color hard copy printing paper of the present invention has formed, on the surface of a base material, a layer formed of thermo-plastic resin having a transferring property relative to a dispersing dye and a compound having two or more radically polymerizable unsaturated double bonds in one molecule and the sublimation dye is transferred on this resin layer to thereby present color.Type: GrantFiled: February 7, 1984Date of Patent: January 26, 1988Assignee: Sony CorporationInventors: Naotake Kobayashi, Tetsuya Abe, Yoshio Fujiwara
-
Patent number: 4708903Abstract: A heat-sensitive transfer sheet comprising a base film, a first hot melt layer composed mainly of wax, a coloring layer comprising at least one colorant and at least one a resin as a vehicle, and a second hot melt layer composed mainly of wax, these layers being formed on said base film in this order.Type: GrantFiled: April 14, 1986Date of Patent: November 24, 1987Assignees: Toyo Ink Manufacturing Co., Ltd., Toppan Printing Co., Ltd.Inventors: Tsuneo Tanaka, Tetsuro Yoshitomi, Koji Hanada, Mashato Ohashi, Michichika Hikosaka
-
Patent number: 4701383Abstract: A method of manufacturing a lignosulfonate-phenol-formaldehyde resin includes heating a mixture of phenol, formaldehyde, lignosulfonate and alkali at a temperature of 60.degree. C. to 100.degree. C. and a pH of 8-13. The lignosulfonate comprises about 5 to about 80 percent of the total weight of phenol, formaldehyde and lignosulfonate and the lignosulfonate is mixed with said phenol and formaldehyde before substantial reaction between said phenol and said formaldehyde. Also disclosed are fibrous articles manufactured using this resin as a binder, such as fiberboards, particle board, plywood, oriented strand board, and waferboard.Type: GrantFiled: December 16, 1985Date of Patent: October 20, 1987Assignee: Masonite CorporationInventor: Eugene R. Janiga
-
Patent number: 4700207Abstract: A dye-donor element for thermal dye transfer comprises a support having thereon a dye layer comprising a dye dispersed in a binder of cellulose triacetate or a cellulose mixed ester, such as cellulose acetate butyrate wherein the butyryl content is less than about 35% or the acetyl content is less than about 2% or both, or cellulose acetate hydrogen phthalate.Type: GrantFiled: October 14, 1986Date of Patent: October 13, 1987Assignee: Eastman Kodak CompanyInventors: Noel R. Vanier, Kin K. Lum
-
Patent number: 4668560Abstract: The present invention relates to a sublimation transfer system color hard-copy printing paper and its object is to present an optimum coloring when the color hard-copying according to the subtractive color mixing process is carried out. To this end, the sublimation transfer system color hard-copy printing paper according to the present invention is provided at least on its surface with a resin layer containing a metal compound selected from Al, Mg, Ca and Sn wherein the sublimation dye is transferred and then colored on this resin layer.Type: GrantFiled: November 29, 1985Date of Patent: May 26, 1987Assignee: Sony CorporationInventors: Naotake Kobayashi, Tetsuya Abe, Yoshio Fujiwara
-
Patent number: 4636432Abstract: A pressure-sensitive adhesive tape or sheet including a paper substrate, a release layer provided on at least one side of said substrate and comprising modified starch and/or starch, and a pressure-sensitive adhesive mass layer provided with respect to said release layer and containing an elastomeric polymer microspheres, said pressure-sensitive adhesive tape or sheet having an adhesion of no more than 150 g/cm.Type: GrantFiled: February 4, 1985Date of Patent: January 13, 1987Assignee: Sanyo-Kokusaku Pulp Co., Ltd.Inventors: Tomishi Shibano, Itsuo Kimura, Sachio Maruchi
-
Patent number: 4623566Abstract: Disclosed is a film of fiber-reinforced regenerated cellulose having on one surface thereof a gas-impermeable layer and on the other surface thereof a gas-permeable layer, the gas-permeable layer comprising a plurality of linear discontinuities running parallel to one another, distributed across the surface of the layer. Preferably, both the gas-permeable layer and the gas-impermeable layer comprise a vinylidene group-containing copolymer. Also disclosed is a process for producing the film and a seamed tubular casing, preferably a sausage casing, made from the film.Type: GrantFiled: November 30, 1984Date of Patent: November 18, 1986Assignee: Hoechst AktiengesellschaftInventors: Erna Kastl, Ludwig Klenk, Horst Faust, Karl Stenger
-
Patent number: 4620999Abstract: Degradation of body-waste bags to assist disposal thereof in sewage systems is facilitated by addition of a base to raise the pH of the human fecal waste bag contents to at least about 12. Inter alia, there is provided a package of at least one bag and sufficient base, preferably in prepacked quantities, to treat all the bags in the package.Type: GrantFiled: November 5, 1984Date of Patent: November 4, 1986Assignee: Imperial Chemical Industries PLCInventor: Paul A. Holmes
-
Patent number: 4599259Abstract: A cover film for a sublimation transfer type hard copy of the present invention is a cover film which is melt bonded by heat on the surface of a hard copy printing paper in which a picture image is formed on the surface thereof by selectively transferring a sublimation dye. The cover film includes a resinous layer containing a metal compound selected from Al, Mg, Ca and Sn. This cover film is capable of producing magenta color of high color saturation by arbitrarily controlling the coloring of reddish dye to be shifted to the blue side and can also protect the surface of the printing paper.Furthermore, the present invention relates to a cover film which is melt bonded by heat on the surface of a hard copy printing paper in which a picture image is formed on the surface thereof by selectively transferring a sublimation dye.Type: GrantFiled: June 22, 1984Date of Patent: July 8, 1986Assignee: Sony CorporationInventors: Naotake Kobayashi, Tetsuya Abe, Satoru Shinohara, Yoshio Fujiwara
-
Patent number: 4592954Abstract: A transparency for ink jet printing comprised of a supporting substrate and thereover a coating consisting essentially of a blend of carboxymethyl cellulose, and polyethylene oxides. Also disclosed are papers for use in ink jet printing comprised of a plain paper substrate and a coating thereover consisting essentially of polyethylene oxides.Type: GrantFiled: January 25, 1985Date of Patent: June 3, 1986Assignee: Xerox CorporationInventor: Shadi L. Malhotra
-
Patent number: 4505975Abstract: In a thermal transfer-type printing method in which an image is formed on printing paper by the selective transfer thereto of disperse dye from a dye carrier of flexible sheet material in response to the selective application of thermal energy to the carrier while in contact with a surface of the printing paper, the latter is comprised of a base of cellulose fibers and resin into which the disperse dye diffuses for producing a clear definition of the image. The resin is desirably polyester or acetyl cellulose either in the form of fibers which are co-mingled with the cellulose fibers in the base of the printing paper, or in the form of a coating on a surface of the paper base.Type: GrantFiled: July 21, 1982Date of Patent: March 19, 1985Assignee: Sony CorporationInventor: Osamu Majima
-
Patent number: 4483902Abstract: A record carrier is formed with a substrate, a lacquer layer, and a metallic layer, with the lacquer layer containing from 0.5 to 5 percent by weight of fine particles of calcium carbonate.Type: GrantFiled: October 31, 1980Date of Patent: November 20, 1984Assignee: International Business Machines CorporationInventors: Dietrich J. Bahr, Marian Briska
-
Patent number: 4467012Abstract: An absorbent composition comprising the reaction product at elevated temperature and pressure of hydrolyzed starch polyacrylonitrile graft copolymer and a polyhydric alcohol such as glycerol in the amount of between about 3% and 20%. The resulting composition exhibits good fluid absorbency and fast wicking properties and is particularly useful in producing absorbent laminated film for use in diapers, paper towels and the like. The present invention also relates to an improved absorbent laminated film prepared with the above absorbent composition and a method for preparing such absorbent laminated film.Type: GrantFiled: June 13, 1983Date of Patent: August 21, 1984Assignee: Grain Processing CorporationInventors: Lee C. Pedersen, Lyle F. Elmquist
-
Patent number: 4459352Abstract: An aqueous coating composition comprises (a) a hydrophilic binder; (b) an ester of cellulose having at least 8 acyl groups per C.sub.24 cellulose unit wherein at least a majority of the acyl groups are derived from an aliphatic polycarboxylic acid having from 3 to 6 carbon atoms; or a salt of the ester; and (c) a hardening agent in an amount sufficient to render the composition water-insoluble after coating and drying of the composition. This coating composition is useful for forming water-insoluble, conductive and highly-adherent layers in composite bases or elements, and particularly in photographic elements having hydrophobic supports. The conductive layers can be used, for example, as conducive subbing layers or conductive pelloid layers.Type: GrantFiled: December 27, 1982Date of Patent: July 10, 1984Assignee: Eastman Kodak CompanyInventors: Raymond T. Jones, James E. Kelly, Karen L. Mott
-
Patent number: 4387132Abstract: Heat transfer paper is provided having applied to at least one surface thereof from about 1/2 to 5 pounds per side of a high-volume, liquid swellable material selected from the group consisting of clays and starches.Type: GrantFiled: December 29, 1980Date of Patent: June 7, 1983Assignee: Champion International CorporationInventor: Paul Hain
-
Patent number: 4356199Abstract: Disclosed is a tubular packaging material for sausage casings, comprising a carrier tubing comprised of cellulose hydrate and containing in its wall from about 5 to 12% by weight of water and from about 18 to 28% by weight of a plasticizer; and a coating on the inside and on the outside of the carrier tubing of a water-insoluble heat-cured synthetic condensation product wherein the carrier tubing is characterized by a swelling value in the range from about 80 to 120%, and the tubular packaging material, after soaking in water at a temperature between about 40.degree. to 50.degree. C. for a period of about 30 minutes and subsequent cooling to about room temperature, is characterized by dimensions in the wet state which are 2 to 6% greater than those before the soaking in water. Also disclosed are methods for preparing the packaging material.Type: GrantFiled: August 4, 1981Date of Patent: October 26, 1982Assignee: Hoechst AktiengesellschaftInventors: Klaus-Dieter Hammer, Wolfgang Heinrich, Guenter Gerigk, Max Bytzek
-
Patent number: 4356200Abstract: Disclosed is a tubular packaging material to produce a sausage casing comprising a carrier tubing comprised of hydrate and containing in its wall from about 5 to 12% by weight of water and from about 18 to 28% by weight of a plasticizer; an anchoring layer on the outside of the carrier tubing of a water-insoluble heat-cured synthetic condensation product; a film coating on the outside of the carrier tubing which is substantially impermeable to water and water vapor and which comprises a copolymer of vinylidene chloride; and a water-permeable adhesion-promoting layer on the inside surface of the carrier tubing, comprising a water-insoluble, heat-cured condensation product. The carrier tubing is characterized by a swelling value in the range from about 80 to 120%, and the tubular packaging, after soaking in water at a temperature between about 40.degree. to 50.degree. C.Type: GrantFiled: August 4, 1981Date of Patent: October 26, 1982Assignee: Hoechst AktiengesellschaftInventors: Klaus-Dieter Hammer, Wolfgang Heinrich, Guenter Gerigk, Max Bytzek
-
Patent number: 4339531Abstract: A coated film base suitable for coating with a light-sensitive photographic emulsion layer comprises a self-supporting film of a synthetic linear polyester and a continuous subbing layer applied to at least one surface of said self-supporting film comprising a water-insoluble copolymer of (a) styrene or a derivative of styrene, (b) a comonomer selected from acrylic acid, methacrylic acid or a derivative of acrylic acid or methacrylic acid and (c) a copolymerizable sulphonated ethylenically unsaturated comonomer having the general structure: ##STR1## wherein R.sub.1, R.sub.2 and R.sub.3 are the same or different and represent hydrogen, halogen, alkyl, nitrile, amide, amine, ketone, ethyl or vinyl;R.sub.Type: GrantFiled: February 24, 1981Date of Patent: July 13, 1982Assignee: Imperial Chemical Industries LimitedInventors: Terence D. J. Elmes, Patrick T. McGrail
-
Patent number: 4336299Abstract: This invention relates to a bonded non-woven fabric capable of absorbing water vapor, containing fibers of cellulose hydrate modified by at least one organic polymeric compound, either solely or blended with synthetic, natural or regenerated fibers.Type: GrantFiled: June 20, 1979Date of Patent: June 22, 1982Assignee: Hoechst AktiengesellschaftInventors: Arno Holst, Reinhart Mayer, Wilhelm Fischer
-
Patent number: 4289171Abstract: Disclosed is a packaging material, comprising a fibrous base web wherein at least a part of the fibers forming said base web include at least a partial coating of a mixture of chemical substances which comprise a predominant proportion of a chemical binder based on a synthetic water-soluble heat-curable cationic resin precondensate and of a minor proportion of at least one coloring chemical substance, the proportions being relative to the total weight of the mixture of substances. Also disclosed is a method of manufacturing this packaging material and a sausage casing made therefrom.Type: GrantFiled: May 29, 1979Date of Patent: September 15, 1981Assignee: Hoechst AktiengesellschaftInventor: Felix Rassbach
-
Patent number: 4255490Abstract: A copolymer comprising 10 to 50 mole % of olefin units and 90 to 50 mole % of vinyl units, 50 to 98 mole % of the vinyl units being vinyl alcohol units and 2 to 50 mole % of the vinyl units being vinyl acetal units, is disclosed. This copolymer has excellent resistance to hot water and excellent oxygen barrier property in combination. When this copolymer is subjected to retortsterilization, blanching is not caused and the excellent oxygen barrier property can be maintained. When this copolymer is laminated on a polyolefin or the like a laminate structure excellent in the interlaminar peel strength is provided.Type: GrantFiled: January 4, 1979Date of Patent: March 10, 1981Assignee: Toyo Seikan Kaisha LimitedInventor: Tadahiko Katsura
-
Patent number: 4250216Abstract: Visible index strips which may or may not be preprinted and which can, at least in most cases, be produced at a lower cost than previously patented index strips. The index strips are of multi-ply construction with the plies typically, but not necessarily, being made of paper.Type: GrantFiled: April 16, 1979Date of Patent: February 10, 1981Inventor: Alexander P. Janssen
-
Patent number: 4207353Abstract: A cellulosic food casing includes an internal coating comprising a water soluble cellulose ether and a cationic thermosetting resin.Type: GrantFiled: February 21, 1979Date of Patent: June 10, 1980Assignee: Union Carbide CorporationInventors: Jerome J. M. Rasmussen, Richard C. Waldman, Richard L. Oliver
-
Patent number: 4186238Abstract: This invention relates to a hydrophilic shaped article of a water-insoluble polymer selected from the group consisting of regenerated cellulose, cellulose ether, cellulose ester and polyalkylene, and capable of forming fibers and films, said article containing amorphous particles of an originally water-soluble cellulose ether prepared from natural cellulose and rendered by chemical modification at least partly water-insoluble while remaining water-absorbent.Type: GrantFiled: September 30, 1977Date of Patent: January 29, 1980Assignee: Hoechst AktiengesellschaftInventors: Arno Holst, Michael Kostrzewa, Helmut Lask
-
Patent number: 4161968Abstract: A cellulosic food casing includes an internal coating comprising a water soluble cellulose ether and a cationic thermosetting resin.Type: GrantFiled: November 3, 1977Date of Patent: July 24, 1979Assignee: Union Carbide CorporationInventors: Jerome J. M. Rasmussen, Richard C. Waldman, Richard L. Oliver
-
Patent number: 4144886Abstract: An absorbent laminate comprising a first layer of absorbent material and at least one layer comprising a tissue having an absorbent carbohydrate derivative on at least one face.Type: GrantFiled: October 26, 1976Date of Patent: March 20, 1979Assignee: Hoechst AktiengesellschaftInventors: Arno Holst, Helmut Lask
-
Patent number: 4105033Abstract: A selected powdery form of a graft copolymer containing hydrophilic chains provides a highly moisture-absorbent media which is suitable for use in absorbent bodies, particularly those used for absorbing body exudates such as catamenial devices, diapers, wound dressings, surgical sponges, incontinence pads and the like. The powdered form of said copolymers is useful alone or in combination with other absorbent materials in making up the absorbent bodies.Type: GrantFiled: March 28, 1977Date of Patent: August 8, 1978Assignee: Personal Products CompanyInventors: Pronoy K. Chatterjee, Graham K. Morbey
-
Patent number: 4105225Abstract: A transfer sheet of a transfer sheet assembly for use in an Autographic Register System has a coating which embodies a colorless color former. The coating is porous and the colorless color former is retained in the pores of the coating until autographic writing is applied to the uppermost record web of the assembly whereby the colorless color former is squeezed out of the coating onto the upper face of the next record web of the assembly. The record webs of the assembly have a developing receptive nature to develop the color of the squeezed out color former. The area of development corresponds to the autographic writing applied to the uppermost sheet.Type: GrantFiled: August 8, 1975Date of Patent: August 8, 1978Assignee: Moore Business Forms Inc.Inventors: David J. Neale, Victor H. Perriman
-
Patent number: 4072785Abstract: An improved plasticized regenerated cellulose film, and particularly a plasticized regenerated cellulose film having a moistureproofing, solvent-sealable coating in which plasticizer migration into the coating is at least minimized, and a process for making such film.Type: GrantFiled: July 5, 1974Date of Patent: February 7, 1978Assignee: FMC CorporationInventors: John S. Taylor, William G. Grantham
-
Patent number: 4051291Abstract: A specially prepared paper bond liner, gypsum wallboard, and gypsum wallboard process which bonds the liner to the core by an adhesive confined to the paper-core interface, the adhesive comprising certain starches placed on the bond liner in their raw state.Type: GrantFiled: July 23, 1974Date of Patent: September 27, 1977Assignee: United States Gypsum CompanyInventor: William J. Long
-
Patent number: 4046928Abstract: This invention relates to an electrosensitive marking blank having a blushed conductive layer and a pigment containing blushed masking layer. The instant electrosensitive element has particular utility in that a relatively thin masking layer in combination with a blushed conductive layer results in a blank having improved whiteness and contrast characteristics.Type: GrantFiled: January 8, 1973Date of Patent: September 6, 1977Assignee: Xerox CorporationInventor: Alptekin Akman
-
Patent number: 4038453Abstract: Leader strip for motion picture films is described which is composed of a substrate of cellulose acetate or polyester, a gum-removing layer comprising an organic binder selected from the group consisting of cellulose esters, polyurethanes, polyacrylonitrile, copolymers of acrylonitrile and vinylidene chloride, and epoxy resins, a gum-shearing agent of finely divided polymeric particles, said agent being bonded by the organic binder to the substrate, said gum-shearing agent being a member selected from the group consisting of polyesters, polyamides, polyimides and polyolefins, said polymeric particles having a size less than about five mils.Type: GrantFiled: September 15, 1975Date of Patent: July 26, 1977Assignee: Ball Brothers Research CorporationInventors: Thomas J. Loran, Virgil R. Friebel, Robert P. Pardee
-
Patent number: 4032690Abstract: Thermosensitive recording material for use in thermal printing, which is composed of a coating composition applied on a support, which coating composition comprises (a) a chromogenic compound, (b) an organic acid, (c) a water-soluble binder containing a carboxyl group and having a softening point of 200.degree. C or higher, (d) a filler, (e) a metal salt of a higher fatty acid and (f) a wax, said recording material having a Bekk surface smoothness of 100 to 500 seconds.Type: GrantFiled: January 24, 1975Date of Patent: June 28, 1977Assignee: Mitsubishi Paper Mills, Ltd.Inventors: Isao Kohmura, Yukio Tahara, Kiyoshi Futaki, Hiroshi Tange
-
Patent number: 4021594Abstract: The roll formation of polymer coated regenerated cellulose films is substantially improved by incorporating in polymer coatings for such films from 0.25 to 4% by weight, based upon the weight of the polymer coating, of finely divided cellulose fibers having an average particle fiber length within the range of from 10 to 150 microns.Type: GrantFiled: April 2, 1976Date of Patent: May 3, 1977Assignee: Olin CorporationInventor: John N. Godfrey
-
Patent number: 3965271Abstract: This invention relates to an improvement in a process for producing a cheese product wherein a cheese curd is extruded through a nozzle into a flexible, tubular mold, solidified to form a cheese product, and then removed from the flexible mold and the resulting product. The improvement is the use in the process of a "duplex type" mold constructed ofAn outer film laminate comprising a first film ply of cellophane having bonded to its outer surface a gas impermeable film having a gas transmission rate of less than about 10 cc/100 in..sup.2 /24 hour-atm.;A second film ply of biaxially oriented polypropylene bonded to the inner surface of said cellophane; andAn inner film comprising a film ply of biaxially oriented polypropylene.Type: GrantFiled: August 19, 1974Date of Patent: June 22, 1976Assignee: Continental Can Company, Inc.Inventor: Frank C. Harrington