Method for curing polymers containing one or more carboxy or anhydride functions by means of polymers having hydroxyamide groups, and compositions
We claim: 1. A method of curing addition polymers having carboxy groups, carboxylic anhydrides or salts of said carboxy groups which comprises the steps of (1 ) mixing said polymer with a different ad... Read More
Inventors: Cenci, Harry J.; Swift, Graham;, Assignee: Rohm and Haas Company (Philadelphia, PA) |
Self-curing copolymers containing both hydroxyamide functions and carboxy or anhydride functions, and compositions
We claim: 1. A curable addition polymer containing (a) one or more carboxy groups, salts of said carboxy groups or carboxylic acid anhydride groups and (a) one or more pendant .beta.-hydroxyalkyl amid... Read More
Inventors: Cenci, Harry J.; Swift, Graham;, Assignee: Rohm and Haas Company (Philadelphia, PA) |
Crosslinking composition containing activated carboxylic ester polymer and amine-terminated triazine resin
What is claimed is: 1. A crosslinking coating composition comprising (1) a vinyl polymer containing from about 1 to 100 weight percent of repeating units derived from a monomer of the formula ##STR4##... Read More
Inventors: Cady, Susan M.; Blank, Werner J.; Schirmann, Peter J.;, Assignee: American Cyanamid Company (Stamford, CT) |
Low temperature, moisture cure coating composition
In the present invention, crosslinking utilizes the reaction between an activated ester group and a nucleophilic primary amine. The activated ester group and the amine react very rapidly in solvent b... Read More
Inventors: Ley, David A.; Cady, Susan M.;, Assignee: American Cyanamid Co. (Stamford, CT) |
Chalk adhesion polymer composition and method of preparation
What is claimed is: 1. An aqueous chalk adhesion latex coating composition consisting essentially of: (a) about 10 to 30% of an aqueous polymer dispersion comprising: (i) major amounts of an acrylic m... Read More
Inventors: Wong, Kian C.; McDonald, Patrick J.; Gromelski, Jr., Stanley J.;, Assignee: Reichhold Chemicals, Inc. (White Plains, NY) |
Curable compositions and corrosion resistant coatings prepared therefrom
OF THE INVENTION The amine-reactive vinyl polymers used as component (a) are known in the art and can be made by reported procedures. Preferably, the amine-reactive polymer contains repeating units d... Read More
Inventors: Lucas, Howard R.;, Assignee: American Cyanamid Company (Stamford, CT) |
Zirconium (III) salts as cure co-catalysts for nonwoven binders comprising acrylamidoglycolic acid
OF THE INVENTION The present invention provides a formaldehyde-free binder composition, post-catalytically cured by addition of a zirconium III salt of an alpha or beta hydroxycarboxylic acid such as... Read More
Inventors: Goldstein, Joel E.; Iacoviello, John G.; Hawn, Gary G.; Cook, Gerald R.;, Assignee: Air Products and Chemicals, Inc. (Allentown, PA) |
Heated extended nip press apparatus
The present invention relates to a heated extended nip press apparatus and method for pressing water from a formed web. The apparatus includes a press frame and a backing roll rotatably supported by t... Read More
Inventors: Crouse, Jere W.; Pulkowski, Jeffrey H.; Porter, Roy J.;, Assignee: Beloit Corporation (Beloit, WI) |
Method for crosslinking cellulose fibers
The apparatus of the present invention is particularly adapted for preparing a quantity of individual crosslinked cellulose fibers from one or more mats comprised of non-crosslinked cellulose fibers. ... Read More
Inventors: Carney, Allan R.; Graef, Peter A.; Bowns, Mark W.; Bolstad, Clifford R.; Olmstead, Fred E.;, Assignee: Weyerhaeuser Company (Tacoma, WA) |
Paper machine for the production of tissue paper
The present invention provides a paper machine for the production of tissue paper where the fiber suspension proceeds from a headbox to a sheet formation unit. Supported by the main wire, the web is p... Read More
Inventors: Steiner, Karl; Meinecke, Albrecht; Goncalves, Rui;, Assignee: J. M. Voith GmbH (Heidenheim, DE) |
Apparatus for crosslinking individualized cellulose fibers
The apparatus of the present invention is particularly adapted for preparing a quantity of individual crosslinked cellulose fibers from one or more mats comprised of non-crosslinked cellulose fibers. ... Read More
Inventors: Graef, Peter A.; Elston, Colin; Olmstead, Fred E.; Bolstad, Clifford R.; Bowns, Mark W.; Hunter, Frank R.; Carney, Allan R.;, Assignee: Weyerhaeuser Company (Tacoma, WA) |
Batch cooking with black liquor pretreatment
The present invention relates to a method and apparatus for cooking comminuted cellulosic fibrous material to produce cellulosic pulp. Especially preferably, the invention relates to an alkaline batch... Read More
Inventors: Henricson, Kaj; Kettunen, Auvo; Ramark, Hannu;, Assignee: Andritz-Ahlstrom Oy (Helsinki, FI) |
Control of diameter of fiber insulation on conductors
What is claimed is: 1. A pulp vat apparatus for applying a layer of pulp fiber to conductors comprising a vat, a cylinder mould rotatable within the vat about an axis to move any part of its periphery... Read More
Inventors: Shannon, Michael A.;, Assignee: Northern Telecom Limited (Montreal, CA) |
Wetlaid nonwovens on high speed machines
OF THE PREFERRED EMBODIMENTS The term "polymeric surfactant" is defined as a molecule which contained a plurality, two or more, of both hydrophilic moieties and hydrophobic moieties. This definition ... Read More
Inventors: Manning, James H.; Hutten, Irwin M.;, Assignee: James River Corporation of Virginia (Richmond, VA) |
Press of a paper machine for thin papers
The object of the present invention is to provide a press section with which such transfer elements can be dispensed with, so that the frequency of the tearing of the web of paper is reduced, and at t... Read More
Inventors: Steiner, Karl; Meinecke, Albrecht; Goncalves, Rui; Schiel, Christian;, Assignee: Voith Sulzer Papiermaschinen GmbH (DE) |
Method of dewatering wet web using an integrally sealed air press
It has now been discovered that a wet-pressed tissue can be made having bulk and absorbency properties equivalent to those of comparable throughdried products, while maintaining reasonable machine pro... Read More
Inventors: Hermans, Michael Alan; Liang-Chen, Shan; Chen, Fung-jou; Druecke, Frank Gerald; Gusky, Robert Irving; Hada, Frank Stephen; Kamps, Richard Joseph; Tomsovic, Charles Robert;, Assignee: Kimberly-Clark Worldwide, Inc. (Neenah, WI) |
Method for making soft tissue
It has now been discovered that an improved uncreped throughdried web can be made by dewatering the web to greater than about 30 percent consistency prior to transferring the wet web from a forming fa... Read More
Inventors: Hermans, Michael Alan; Burazin, Mark Alan; Hada, Frank Stephen; Hong, Sung Ho;, Assignee: Kimberly-Clark Worldwide, Inc. (Neenah, WI) |
Loading arrangement in a paper machine doctor
The present invention provides new kind of loading arrangement for a paper machine doctor, by means of which the shape of the doctor blade and the force it directs to the surface being doctored can be... Read More
Inventors: Uuttana, Kyosti;, Assignee: Metso Paper, Inc. (Helsinki, FI) |
Apparatus for drying a fibrous web
I claim: 1. An apparatus for drying a wet air-permeable web, comprising: a drum rotatable about an axis and provided with a peripheral wall having a multiplicity of interstices; an exhaust pipe extend... Read More
Inventors: Leitner, Franz;, Assignee: H. Walli Gesellschaft m.b.H. Papier- und Zellstoffwattefabrik (Thomasberg, AT) |
Method of continuous drying of a paper or other porous web and a drying device for applying this method
I claim: 1. A method of continuous drying of a paper, cardboard, or other porous web, according to which method a web (3; 21) and a drying felt or wire (4; 22) supporting said web are subjected to an ... Read More
Inventors: Lehtinen, Jukka A.;, Assignee: Oy Tampella A.B. (Tampere, FI) |
Peripheral exhaust system for high velocity dryer
One object of my invention is to provide a peripheral exhaust system for a high velocity dryer which substantially reduces both the spillout of the hot moist air used for drying from the periphery of ... Read More
Inventors: McCarthy, Richard A.;, Assignee: Aer-Overly Corporation (Ramsey, NJ) |
Apparatus and method for drying fibrous web material
According to the teachings of the present invention, the advantages of impulse drying are obtained without the direct application of heat to the outer surface of a dryer roll. This has been accomplish... Read More
Inventors: Krill, Wayne V.; Taylor, Richard P.; Wong, Thomas;, Assignee: James River Corporation of Nevada (San Francisco, CA) |
Method and apparatus for forming battery terminal bushings
It is therefore an object of this invention to produce a battery terminal bushing which is substantially nonporous by a method which does not involve die casting. Another object of this invention is t... Read More
Inventors: Carter, Warren E.;, Assignee: Molded Metal Services, Inc. (Murfreesboro, TN) |
Polycarbonate transesterification with tetraborate or tetraaluminate anion containing catalyst
What is claimed is: 1. In a process for preparing a high molecular weight polycarbonate by reacting at least one bis(aryl)carbonate with at least one dihydric phenol in the presence of a transesterifi... Read More
Inventors: Brunelle, Daniel J.;, Assignee: General Electric Company (Schenectady, NY) |
Polyamic acid copolymer system for improved semiconductor manufacturing
We claim: 1. A copolymeric polyamic acid which is capable of forming a polyimide consisting essentially of, in mole percent, from greater than 5 percent to about 45 percent pyromellitic dianhydride, f... Read More
Inventors: Linde, Harold G.; MacIntyre, Michael W.; Motsiff, William T.;, Assignee: International Business Machines Corporation (Armonk, NY) |
Multi-ply headbox for a papermaking machine
Therefore, with the foregoing in mind, it is a primary object of the present invention to provide a new and improved construction of a headbox for a papermaking machine which is not afflicted with the... Read More
Inventors: Hildebrand, Otto;, Assignee: Sulzer Escher Wyss GmbH (Ravensburg, DE) |
Multi-purpose clamping apparatus
The clamping apparatus of the present invention is characterized by a pair of base plates formed with upwardly facing support surfaces for securing a pair of respective components thereon during the p... Read More
Inventors: Colucci, William G.;, Assignee: |
Pressurized peroxide bleaching vessel having a rotatable scraper arm and cleaning device
A known pressurized peroxide bleaching vessel is shown in FIG. 1. The vessel comprises a housing 1 with an input arrangement 2 provided at its lower end, as well as an output arrangement 3 arranged a... Read More
Inventors: Olsson, Hans; Schildt, Yrjo;, Assignee: Kvaerner Pulping Aktiebolag (SE) |
Ledge for resiliently supporting a drainage wire of a paper making machine
The object of the present invention is to create a resilient ledge of relatively narrow structural shape which, despite the fact that it is arranged in the wet, pulp residue filled atmosphere of the p... Read More
Inventors: Schiel, Christian; Grimm, Helmut; Wolf, Robert;, Assignee: J.M. Voith GmbH (DE) |
Method for de-inking paper pulp from recycled paper
The object of the invention is to provide a method for de-inking paper pulp from old papers. The used paper recycling process starts with the separation, by stirring in water, of the bales of old pape... Read More
Inventors: Serres, Alain;, Assignee: E & M Lamort (Vitry, FR) |
Manufacturing Materials 
