From Continuously Cast Material Patents (Class 264/144)
-
Patent number: 11406105Abstract: Provided are an agrochemical composition containing pyribencarb which has good blendability with an agrochemical composition containing etofenprox, and a method for spraying the composition. The agrochemical composition which contains pyribencarb (A) and a surfactant (B), characterized in that, as the surfactant (B), a lignin sulfonic acid salt having purity of 85% by mass or more, wherein the content of reducing sugars is less than 5% by mass and the content of sugar sulfonic acids is less than 6% by mass (B1), and a monoalkylarylsulfonic acid salt formalin condensate and/or a polycarboxylic acid salt having mass average molecular weight of 5,000 to 50,000 (B2) are exclusively included; and the method for spraying the composition.Type: GrantFiled: April 14, 2020Date of Patent: August 9, 2022Assignee: KUMIAI CHEMICAL INDUSTRY CO., LTD.Inventors: Yuichiro Ohta, Toshinobu Yamazaki
-
Patent number: 11358347Abstract: A fully impregnated fiber-reinforced thermoplastic granule includes a fiber core impregnated with a thermoplastic resin and coated with the resin and subsequently polymerized to form a thermoplastic. The granule is formed in a continuous process including a continuous fiber strand being coated and impregnated with a thermoplastic resin, curing the thermoplastic resin, and cutting the fiber and thermoplastic into granules of a desired length. The continuous process results in a uniform, fully impregnated fiber core in the granule which results in a longer reinforcing fiber for added strength in subsequently produced products formed from the granules.Type: GrantFiled: February 21, 2019Date of Patent: June 14, 2022Assignee: Johns ManvilleInventor: Daniel P De Kock
-
Patent number: 10798961Abstract: The present application is directed to sensory technologies for beverages and other products that significantly reduce or fully mask bitterness and/or off-flavor associated with the presence of functional ingredients, such as caffeine or L-phenylalanine. In particular, reduction or masking of the bitterness and/or off-flavor in the beverage or food composition is achieved through the addition of trigeminal sensation-eliciting compounds, referred to herein as sensates, responsible for cooling, warming, tingling, or mouthfeel-type sensations.Type: GrantFiled: March 12, 2014Date of Patent: October 13, 2020Assignee: Altria Client Services LLCInventors: Pauline Marcq, Gerd Kobal, Maria Gogova
-
Patent number: 9272289Abstract: An industrially highly useful CNT separation method is provided whereby metallic CNTs and semiconducting CNTs can be efficiently separated and purified in large quantities in a short time period from CNTs containing these carbon nanotubes, using inexpensive equipment and in simple steps, and whereby metallic CNTs and semiconducting CNTs can be separated at low cost. The CNT separation method includes adding a CNT dispersion to a powder-charged separation vessel to selectively adsorb the semiconducting CNTs to the powder, and eluting the semiconducting CNTs adsorbed to the powder after collecting the metallic CNTs.Type: GrantFiled: July 20, 2011Date of Patent: March 1, 2016Assignee: NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGYInventors: Takeshi Tanaka, Hiromichi Kataura
-
Patent number: 9039948Abstract: The invention relates to a method and a device for producing and treating plastic pellets. According to said method, a melt of the plastic material is granulated to give pellets, the pellets are cooled in a cooling fluid, the pellets are separated from the cooling fluid and the pellets are crystallized. The device according to the invention is characterized by comprising a control unit which monitors the crystallization step and controls the method in such a manner that, in case of a disturbance of crystallization, the pellets are supplied to an intermediate storage alter separation of the pellets from the cooling fluid and, as soon as the disturbance is removed, the pellets temporarily stored in the intermediate storage are supplied to crystallization and are crystallized.Type: GrantFiled: March 11, 2013Date of Patent: May 26, 2015Assignees: Rieter Automatik GMBH, Buhler Thermal Processes AGInventors: Frank Glöckner, Fernando Eusebio, Brent Allen Culbert, Franziska Morganti
-
Publication number: 20150065680Abstract: There is provided flakes of an ester mixture comprising bis-(hydroxyethyl)-terephthalate, dimers, tamers, tetramers, pentamers and higher oligomers of ethane-1,2-diol and terephthalate acid.Type: ApplicationFiled: April 18, 2013Publication date: March 5, 2015Inventor: Shankar Devraj
-
Patent number: 8852476Abstract: A process for forming thin flake particles includes coating the liquid release agent over a base substrate, forming a multilayer structure by depositing a thin film over the liquid release agent, collecting the multilayer structure, and separating the thin flake from the multilayer structure using a suitable solvent. The liquid release agent comprises a curable compound that can form a solidified layer less than 0.001 mm thick onto which the thin film can be deposited. Separation requires little solvent because of the thinness of the solidified layer.Type: GrantFiled: February 26, 2009Date of Patent: October 7, 2014Inventor: Wolfgang Decker
-
Patent number: 8852490Abstract: Systems and methods for a concrete apparatus with incorporated lifter are provided. A concrete apparatus is formed by placing a reinforcement system in a mold. The reinforcement system comprises a lifter. Concrete is poured into the mold such that the lifter protrudes from the poured concrete. After the concrete has hardened and the mold is removed, the lifter is used to carry and position the concrete apparatus. After the concrete apparatus is positioned, the lifter is removed at the circumference of the concrete apparatus leaving no holes, thereby eliminating water leakage due to lifting methods.Type: GrantFiled: April 9, 2009Date of Patent: October 7, 2014Inventor: Pat Halton Fore, III
-
Patent number: 8632709Abstract: A process for efficiently producing a water-dispersible particulate agricultural-chemical composition having improved disintegrability/dispersibility in water, the composition having a particular size in the range of 50-1,000 ?m. The process is characterized by comprising the following steps (a) to (e): (a) a step of kneading an agricultural-chemical active ingredient, a surfactant, and water; (b) a step of extruding the resultant mixture through a screen having pores 600-2,000 ?m in diameter to form granules; (c) a step of drying the granules; (d) a step of rotating two toothed rolls with irregularities on the surface arranged in parallel to each other, and leading the dried granules to pass between the toothed rolls thereby pulverizing the granules; and (e) a step of sieving the pulverized granules.Type: GrantFiled: November 4, 2009Date of Patent: January 21, 2014Assignees: Kumiai Chemical Industry Co., Ltd., Nippon Soda Co., Ltd.Inventors: Shigeki Fujita, Kazunori Kurita
-
Patent number: 8323542Abstract: A method of forming pigment flakes includes using a deposition substrate having a plurality of regions; some of the regions are raised or lowered so that there is a level difference between each two adjacent regions. A coating deposited onto this substrate breaks along region borders when it is separated from the substrate. In one embodiment, the substrate includes first and second regions, wherein each of the first regions is in an abutting relationship with at least one of the second regions. All the first regions are at a first level and all the second regions are at a second level, and the difference between the first and second levels is greater than a predetermined value. The first and second regions are preferably square-shaped regions for manufacturing square flakes with practically no debris.Type: GrantFiled: November 2, 2010Date of Patent: December 4, 2012Assignee: JDS Uniphase CorporationInventors: Alberto Argoitia, Vladimir P. Raksha, Cornelis Jan Delst
-
Patent number: 8303872Abstract: The present invention relates to a process for preparing ethylene urea in solid form, in which a water-comprising product melt of ethylene urea is cooled on a breaking-up apparatus and the water content of the solid obtained is from 5 to 15% by weight. Furthermore, the invention relates to ethylene urea as solid prepared by a process according to the invention, wherein the water content of the solid is from 5 to 15% by weight and the solid displays lasting powder flow.Type: GrantFiled: December 10, 2008Date of Patent: November 6, 2012Assignee: BASF SEInventors: Henry Szafranski, Stefanie Werland, Peter Raatz, Joachim Simon
-
Publication number: 20120231259Abstract: An apparatus is provided for harvesting a carbon nanotube array from a substrate. The apparatus includes a peeler that peels the carbon nanotube array from the substrate and a support that receives the carbon nanotube array peeled from the substrate. In addition the apparatus includes a drawing device that simultaneously draws the carbon nanotube array from the substrate onto the support as the carbon nanotube array is peeled from the substrate. The peeler and drawing device are synchronized in operation so that as a given length of carbon nanotube array is peeled from the substrate, that same given length of carbon nanotube array is drawn onto the support.Type: ApplicationFiled: March 10, 2011Publication date: September 13, 2012Inventors: Mathew C. Weisenberger, John D. Craddock
-
Patent number: 8211345Abstract: This invention provides an optical film having a reduced thickness and an increased width, which is free from bleedout with the elapse of time (during storage) in a continuous wound state, a method for manufacturing an optical film, and a polarizing plate using the optical film. The optical film is a plasticizer-containing optical film having an overall width of 1500 mm to 4000 mm produced by a solution casting method. The amount of the plasticizer present in the center portion in the surface side of the optical film is determined as value A by TOF-SIMS. The amount of the plasticizer present in the center portion in the back side is determined as value B by the TOF-SIMS. Value X is determined by formula 1 based on the values A and B. The amount of the plasticizer present in the end portion in the surface side of the optical film is determined as value A? by TOF-SIMS, and the amount of the plasticizer present in the end portion of the back side is determined as value B? by the TOF-SIMS.Type: GrantFiled: July 12, 2007Date of Patent: July 3, 2012Assignee: Konica Minolta Opto, Inc.Inventor: Masahiro Shibuya
-
Publication number: 20120047634Abstract: Embodiments of the present disclosure include helmet liners, helmets, helmets with deflective structures, helmets with thermochromic features, and methods of making helmet liners, helmets, helmets with deflective structures, and helmets with thermochromic features.Type: ApplicationFiled: May 14, 2010Publication date: March 1, 2012Inventor: Uday Vaidya
-
Publication number: 20120007271Abstract: A process for forming thin flake particles includes coating the liquid release agent over a base substrate, forming a multilayer structure by depositing a thin film over the liquid release agent, collecting the multilayer structure, and separating the thin flake from the multilayer structure using a suitable solvent. The liquid release agent comprises a curable compound that can form a solidified layer less than 0.001 mm thick onto which the thin film can be deposited. Separation requires little solvent because of the thinness of the solidified layer.Type: ApplicationFiled: February 26, 2009Publication date: January 12, 2012Inventor: Wolfgang Decker
-
Publication number: 20110121483Abstract: The invention relates to a device for producing pellets from plastic material or from material to be pelletized. Said device comprises a continuous casting device (1) from which at least one strand (2) of the material to be pelletized is issued, and a belt conveyor (3) comprising at least one conveying belt (4) on which the strand (2) can be fed to a pelletizer (5), said pelletizer breaking the strand up into pellets (6). The invention is characterized in that the belt conveyor (3) has a switchable direction of conveyance of the conveying belt (4), a direction of feed conveyance towards the pelletizer (5) and a direction of discharge conveyance away from the pelletizer (5). The invention also relates to a method for operating said device.Type: ApplicationFiled: October 15, 2008Publication date: May 26, 2011Applicant: Automatik Plastics Machinery GMBHInventors: Sven Fenchel, Jochen Scheurich
-
Patent number: 7425290Abstract: A compacted particulate polymer additive composition in a dry granular form formed from a substantially uniform mixture of the following components: (a) at least one particulate sterically-hindered phenolic compound; and (b) one or more particulate polymer additives other than a sterically-hindered phenolic compound; wherein the particles of said composition are held together in compacted dry granular form exclusively or substantially exclusively by contact with dried surfaces of in situ desolvated particles from particles of one or more at least partially solvated components of (a), and optionally by contact with dried surfaces of in situ desolvated particles from particles of one or more at least partially solvated components of (b). Compositions of this type except that there is no component (b) are also described.Type: GrantFiled: August 4, 2004Date of Patent: September 16, 2008Assignee: Albemarle CorporationInventor: John Semen
-
Patent number: 7157030Abstract: This invention relates to filtration particulate material for the removal of compounds from fluid streams. More particularly, this invention relates to a composition for filtration particulate material, method of manufacture of the filtration particulate material, filtration particulate material and the use of the filtration particulate material for the removal of compounds from fluid streams.Type: GrantFiled: December 3, 2004Date of Patent: January 2, 2007Inventor: John Charles Rintoul
-
Patent number: 6838030Abstract: A method of manufacturing molded materials of a thermosetting resin composition in a method of granulating a molding material of the thermosetting resin composition, in which a sheet producing step for transferring the molding material in a molten state to a subsequent stage while processing the same material into a sheet type material of a predetermined thickness, a first processing step for cutting the sheet type material, which has thus been transferred to a stage for carrying out this step, in parallel with the transfer direction thereof to a predetermined width, and thereby obtaining a processed body of laterally arranged rows of elongated string-like materials, a step of cutting the processed body, which is obtained in the first processing step, to a predetermined length with respect to the transfer direction, a transfer direction changing step for transferring the processed body, which has been subjected to the cutting step, to a subsequent stage by changing the transfer direction of the processed bodyType: GrantFiled: December 31, 2001Date of Patent: January 4, 2005Assignee: Sumitomo Bakelite Company LimitedInventors: Osamu Hashimoto, Kazuyuki Najima, Ryuji Nozaki
-
Patent number: 6749936Abstract: Achromatic multilayer diffractive pigment flakes and foils are provided having diffractive structures thereon. The diffractive pigment flakes can have a symmetrical stacked coating structure on opposing sides of a reflective core layer, an asymmetrical stacked coating structure on one side of a reflective layer, or can be formed with one or more encapsulating coatings around the reflective core layer. The diffractive pigment flakes can be interspersed into liquid media such as paints or inks to produce diffractive compositions for subsequent application to a variety of objects. The foils can be laminated to various objects or can be formed on a carrier substrate. The diffractive pigment flakes and foils can be formed with a variety of diffractive structures thereon to produce selected optical effects. The diffractive foils and diffractive compositions applied to an object exhibit an iridescent diffractive effect over an achromatic background.Type: GrantFiled: December 20, 2001Date of Patent: June 15, 2004Assignee: Flex Products, Inc.Inventors: Alberto Argoitia, Paul T. Kohlmann, Matthew R. Witzman, Paul G. Coombs, Charles T. Markantes, Richard A. Bradley, Jr.
-
Patent number: 6579965Abstract: For the anionic polymerization of lactams: (a) (i) a catalyst capable of creating a lactamate and (ii) a regulator chosen from amides of formula R1-NH—CO-R2, in which R1 can be substituted by an R3-CO—NH— or R3-0— radical and in which R1, R2 and R3 denote an aryl, alkyl or cycloalkyl radical, are dissolved in the molten lactam, (a1) the solution from stage (a) is cooled, optionally to the solid state in a form which can be divided, (a2) the product from stage (a1) is optionally reheated to a temperature below the polymerization temperature of the lactam, (a3) optionally, the product from stage (a1) is reheated and is maintained at a temperature between the melting temperature of the lactam and 15° C. above, and (b) the produce from any one of stages (a1), (a2) or (a3) is introduced into a mixing device or mold and is then heated to a temperature sufficient to obtain the bulk polymerization of the lactam.Type: GrantFiled: September 24, 2001Date of Patent: June 17, 2003Assignee: AtofinaInventors: Nicola Hoogen, Andreas Wollny, Heike Faulhammer, Rolf Muelhaupt
-
Patent number: 6221294Abstract: Cyanuric chloride moldings, especially tablets and flakes, have advantages over powders in ease of handling. The moldings are produced by droplet or strip application of molten cyanuric chloride on to a surface and dissipation of the latent heat of fusion by cooling the surface or contacting the melt applied as droplets or strips with a cooling gas.Type: GrantFiled: June 15, 2000Date of Patent: April 24, 2001Assignee: Degussa AktiengesellschaftInventors: Ralf Goedecke, Klaus Hentschel, Rolf-Dieter Möller, Knut Ehrhardt, Manfred Schmidt, Michael Kissner
-
Patent number: 5922465Abstract: The invention relates to platelet-shaped interference pigments for effect paints for painting objects of daily use, especially vehicle bodies, with the interference pigments including liquid crystal polymers (LCP) with main and/or side groups--mesogens--which are arranged at least approximately chirally-nematically or the like. In order to be able to paint different colored backgrounds in a covering fashion using the transparent interference pigments, the interference pigments are built up in several layers and also have at least one and preferably two interfering layer(s) of liquid crystal polymers and even of a single, preferably centrally located, light-absorbent layer, with the light-absorbent layer absorbing at least a portion of the visible light spectrum. Advantageously the light-absorbent layer can absorb light in the entire visible light spectrum, in other words appear black.Type: GrantFiled: May 19, 1997Date of Patent: July 13, 1999Assignee: Daimler-Benz AGInventors: Michael Gailberger, Katja Strelzyk, Karl Holdik, Fritz Dannenhauer, Erik Grosse, Andreas Stohr
-
Patent number: 5888444Abstract: The invention relates to an effect paint for objects to be painted, as well as to a process for making the effect paint, wherein the effect paint comprises pigments. The pigments, produced by fragmenting a wiped and cross-linked film, are added to a starting paint of a paint coat of the object and result in a color effect which depends on the viewing angle, and are also provided with a marking used to recognize and characterize the object.Type: GrantFiled: June 13, 1997Date of Patent: March 30, 1999Assignee: Mercedes-Benz AktiengesellschaftInventors: Fritz Dannenhauer, Karl Holdik
-
Patent number: 5747634Abstract: A continuous process for activated anionic lactam polymerization is proposed, wherein a liquid system is employed, which simultaneously contains activator and anionic catalyst for the polymerization of lactam.Type: GrantFiled: January 21, 1997Date of Patent: May 5, 1998Assignee: EMS-Inventa AGInventors: Eduard Schmid, Roman Eder
-
Patent number: 5660781Abstract: Low-firing glass ceramic green sheets useful in the production of glass ceramic multilayer substrates are prepared from a coarse raw powder material comprising a B.sub.2 O.sub.3 -containing glass powder. The coarse raw powder material is initially subjected to wet grinding, either in an alcohol-free organic solvent in the presence or absence of an organic binder, or in an alcohol-containing organic solvent in the presence of an organic binder, until the powder is comminuted to a particle size suitable for tape casting. The wet-ground powder is slurried with an organic solvent and an organic binder, and the slurry is cast into sheets. The resulting green sheets have improved elongation and can be punched to form fine through holes with a small pitch.Type: GrantFiled: June 23, 1995Date of Patent: August 26, 1997Assignees: Sumitomo Metal Industries, Ltd., Sumitomo Metal Ceramics, Inc.Inventors: Yoichi Moriya, Yoshiaki Yamade, Koichi Uno
-
Patent number: 5599412Abstract: In color printing, and in the fine arts, cholesteric liquid crystal (CLC) color inks are known to possess much higher color saturation and brightness than conventional pigment and dyed based inks. However, prior art CLC ink formulations are inconvenient because in the liquid phase they have to be confined in cells, and in the solid phase, they have to be applied at high temperature, and have to be aligned by some means to produce the optimum color. This invention solves the problem encountered in the CLC prior art, by making pre-aligned CLC platelets or flakes of appropriate thickness and size and mixing them in appropriate host fluids producing a novel CLC ink which can be applied at room temperature and without the need for alignment. The new pre-aligned room temperature CLC ink can be used as a substitute for conventional inks in almost all printing and plotting, and manual drawing and painting. Using the notch filter CLC platelets, the brightness is further enhanced.Type: GrantFiled: June 27, 1994Date of Patent: February 4, 1997Inventor: Sadeg M. Faris
-
Patent number: 5424119Abstract: A polymeric sheet comprising a layer of polymeric material having a first and second parallel surfaces. A plurality of oriented multilayer interference thin film flakes are disposed in the layer of polymeric material. The flakes have first and second parallel surfaces and a width and a thickness and have an aspect ratio of at least 2:1 for the width with respect to the thickness.Type: GrantFiled: February 4, 1994Date of Patent: June 13, 1995Assignee: Flex Products, Inc.Inventors: Roger W. Phillips, Paul G. Coombs, Patrick K. Higgins, Charles T. Markantes
-
Patent number: 5304331Abstract: The present invention relates to an apparatus and method for extruding a Bingham plastic-type material through a die having an auger rotationally mounted therein.Type: GrantFiled: December 17, 1992Date of Patent: April 19, 1994Assignee: Minnesota Mining and Manufacturing CompanyInventors: William K. Leonard, Donley D. Rowenhorst, Jerald A. Scherger, Donald R. Winberg
-
Patent number: 5108680Abstract: Adhesive resin particles of adhesive resin having a plasticizing range between 60.degree. and 120.degree. C., as well as a method of producing the particles. To prevent the particles from sticking together or caking during storage, they are in the form of coated particles, with at least one polyethylene hard wax having a solidification point of .gtoreq.90.degree. C. being added to the adhesive resin to coat the same.Type: GrantFiled: July 5, 1991Date of Patent: April 28, 1992Assignee: Continental AktiengesellschaftInventors: Karl-Hans Menting, Hendrik Stevens
-
Patent number: 5106560Abstract: A method for producing para-aramid pulp by using gravity-induced orientation of anisotropic para-aramid solutions. The solutions are those in which the para-aramid is still actively polymerizing. The process can be practiced on immobile inclined supports or on a moving inclined support in the form of a conveyer.Type: GrantFiled: August 9, 1990Date of Patent: April 21, 1992Assignee: E. I. Du Pont de Nemours and CompanyInventors: Joseph J. Duffy, Jon D. Hartzler, Robert A. Marin, Richard D. Mules
-
Patent number: 4927557Abstract: Flakes of a hydrophilic solid organic material, e.g., polyethylene glycol are formed from a melt of said solid organic material on a belt cooler. The process is improved by wetting the belt cooler with water and/or an organic, low molecular weight, hydrophilic liquid to maintain contact between flake and belt during rapid cooling.Type: GrantFiled: November 21, 1988Date of Patent: May 22, 1990Assignee: The Proctor & Gamble CompanyInventors: Jack W. Revis, John A. Sagel, Daniel I. Ostendorf
-
Patent number: 4906419Abstract: Device and process for fast cooling and solidifying of molten materials with a metal oxide base. The device comprises two metal cylinders with parallel axes, which rotate in opposite directions and are cooled. The metal cylinders exhibit a corrugated surface, and an elevation on the surface of one cylinder in each case engages in the recess of the surface of the other cylinder with formation of a gap. The melt is poured into the gap, drawn by force and simultaneously cooled under pressure.Type: GrantFiled: November 18, 1988Date of Patent: March 6, 1990Assignee: Lonza-Werke G.m.b.H.Inventors: Erwin Haas, Heinz-Withold Schmitz
-
Patent number: 4820773Abstract: Improved water-absorbing, crosslinked acrylate resins are prepared by aqueous polymerization of (A) acrylic acid neutralized 70 to 100 mole percent for example with ammonia and/or caustic alkali and/or an amine; with (B) acrylamide in a mole ratio of 70 to 100 mole percent (A) to 30:0 mole percent (B); and (C) a water miscible or a water soluble polyvinyl monomer in the presence of (D) a styrene-maleic anhydride copolymer, neutralized 70 to 100 mole percent for example with ammonia, and/or caustic alkali and/or an amine, in an amount of 1% to 25% based on the weight of acrylic acid or acrylate, such that the amount of (C) is 0.001 to 0.6 weight percent based on the total weight of (A), (B), (C) and (D). In addition, surface treating the water-absorbing crosslinked acrylate resins with a polyquaternary amine substantially further increases both the rate of water absorption and the quantity of water absorbed and retained by the resin.Type: GrantFiled: June 25, 1987Date of Patent: April 11, 1989Assignee: American Colloid CompanyInventors: William Alexander, Mark Anderson, Barbara R. Regan
-
Patent number: 4795604Abstract: A method for molding 1,4,4a,9a-tetrahydroanthraquinone by cooling and solidifying a melt of 1,4,4a,9a-tetrahydroanthraquinone, which comprises contacting the melt with a cooling surface of a temperature of from about 50.degree. to about 80.degree. C. for solidification, and peeling off the solidified product.Type: GrantFiled: June 10, 1987Date of Patent: January 3, 1989Assignee: Kawasaki Kasei Chemicals Ltd.Inventors: Katsumi Matsuzaki, Kenji Usui, Seishi Ikemoto
-
Patent number: 4734238Abstract: The invention relates to a process for producing a powder of a cationic polymer by spreading on a moveable carrier a layer of an aqueous solution of a vinyl monomer, carrying out continuous polymerization followed by peeling off hydrous polymer from the carrier in a hot state, and cutting said hydrous polymer in a hot state by a shearing stress.Type: GrantFiled: March 20, 1986Date of Patent: March 29, 1988Assignees: Mitsubishi Rayon Co., Ltd., Nitto Chemical Indutry Co., Ltd., Diafloc Co., Ltd.Inventors: Teruhiko Sugimori, Hideaki Habara, Ken-ichi Inukai, Akihisa Furuno
-
Patent number: 4717619Abstract: Disclosed herein is a process for the production of shaped polybenzimidazole articles which comprises forming a solvent solution of the polymer, depositing the solution on a support to form a film, removing sufficient solvent from the deposited film such that the film contains from about 10 to about 30 percent by weight of said solvent and compression molding the resulting product into a shaped article. Thus, this invention provides a unique process for the forming of molded shaped articles from polybenzimidazole based polymers.Type: GrantFiled: October 29, 1985Date of Patent: January 5, 1988Assignee: Hoechst Celanese CorporationInventor: John S. Letinski
-
Patent number: 4711750Abstract: A continuous process for casting a molten metal oxide such as an aluminous oxide and more particularly an alumina-zirconia eutectic composition that is subsequently crushed to produce an abrasive is provided wherein two thin metal belts are brought into face-to-face relation and the molten oxide is poured into the nip between the belts as they come into face-to-face relation. The material that is being solidified maintains the belts slightly spaced apart on the order of some small fraction of an inch (e.g. 1/16) and the back surface of the belt is flooded with copious quantities of cooling fluid (e.g. water) to maintain the belts below red heat. The belts are held in closely spaced relation for a sufficient time to permit the abrasive to be cooled below red heat. The belts are then separated and the abrasive is discharged from between the belts.Type: GrantFiled: July 15, 1981Date of Patent: December 8, 1987Assignee: Norton CompanyInventor: John J. Scott
-
Patent number: 4690788Abstract: A novel process for preparing particles of polymer gel prepared by polymerizing an aqueous solution of water-soluble vinyl monomers which comprises breaking the polymer gel into particles with a breaker device wherein the gel is cut into strips by a pair of rollers having a plurality of annular projections or grooves on their surfaces, the rollers rotating in an opposite direction to each other to engage each other and cut off the gel fed between the rollers, and the strips are then cut into particles by a combination of a fixed cutting blade and a rotating cutting blade. The obtained gel particles are further pulverized into fine round or particles spherical in a vertical type cutter comprising at least one vertically fixed cutting blade and a rotary cutting blade arranged rotatably and vertically, a clearance being provided between an edge of the rotary cutting blade and an edge of the fixed blade.Type: GrantFiled: November 5, 1985Date of Patent: September 1, 1987Assignee: Dai-Ichi Kogyo Seiyaku Co., Ltd.Inventors: Akira Yada, Shusaku Matsumoto, Yoshihiro Kawamori, Takao Saito, Tadashi Nishiyama, Yoshitugu Adachi
-
Patent number: 4654268Abstract: A method for processing intumescent material which forms a layer of a transparent fire-screening panel, which method includes forming a layer containing an aqueous solution of intumescent material on a cyclically moving support, removing water from the layer of material on the support by applying heat, removing the intumescent layer from the support within one cycle of its application thereto in such a manner that the layer becomes reworked or broken, and incorporating the removed intumescent material into a glazing panel.Type: GrantFiled: March 13, 1985Date of Patent: March 31, 1987Assignee: GlaverbelInventors: Marcel De Boel, Michel Bosquee, Pierre Goelff
-
Patent number: 4537914Abstract: An absorbent floor cleaning and waxing composition is disclosed comprising shreds of a hydrophilic, open-celled, solids-loaded polyurethane foam having an aqueous wax emulsion releasably incorporated therein. The composition is effective to replace soiled coatings of floor wax with fresh floor wax.Type: GrantFiled: January 4, 1985Date of Patent: August 27, 1985Assignee: Creative Products Resource Associates, Ltd.Inventors: James A. Smith, Betty J. Murphy
-
Patent number: 4462526Abstract: A briquet sheet from a briquetting machine is subjected to shearing forces to sever the longitudinal webs of the sheet and subsequently, to bending forces to fracture the remaining transverse webs. The separator apparatus includes a pair of shear rolls with alternate shear lands and smaller diameter idler rolls. The shear rolls are followed by a pair of lobed separator rolls.Type: GrantFiled: June 14, 1982Date of Patent: July 31, 1984Assignee: Midrex CorporationInventors: Kenneth R. Dumont, Jack R. Robinson
-
Patent number: 4405545Abstract: A method and apparatus is disclosed for rapidly solidifying and cooling molten metal oxides, by continuous casting, which according to the invention, comprises: feeding the molten metal oxides into the convergent space formed between two cylinders mounted for rotation about horizontal axes and rotated in opposite directions, i.e., counter-rotating, at a substantially equal peripheral speed, the distance between their axes being equal to the sum of the radius of each cylinder plus at least about one millimeter; cooling the walls of the cylinders to enable solidification of the molten material; controlling the rotary speed of the cylinders so that the molten metal oxide is not completely solidified until it reaches a point beyond a plane passing through the axes of rotation of the cylinders, and retrieving a solidified metal oxide product from the divergent space formed between the cylinders. The method is particularly suited to the production of fine grain abrasives of a corundum or courndum-zirconia base.Type: GrantFiled: January 26, 1982Date of Patent: September 20, 1983Assignee: Societe Francaise d'Electrometallurgie SofremInventors: Louis Septier, Michel Demange
-
Patent number: 4389357Abstract: Method and apparatus for preparing a thermosetting resin for further processing. The resin is poured from a batch reactor onto a continuously moving conveyor belt to form a layer of about 2 to 4 inches thick. After the batch is received on the conveyor, the conveyor is stopped for several hours to permit the batch to cool and solidify. Thereafter, the conveyor is restarted and a chopper at the downstream end of the conveyor chops the solidified batch into small chunks and flakes. The conveyor has a rigid trough support under the upstream end of the conveyor's upper run and roller assemblies holding the conveyor in a trough configuration at its downstream end.Type: GrantFiled: June 26, 1981Date of Patent: June 21, 1983Assignee: Ashland Oil, Inc.Inventors: Richard S. Chu, Maher L. Mansour
-
Patent number: 4340342Abstract: The processing of thermoplastic materials by working the thermoplastic materials into a hot flat sheet. The sheet material is first deformed or scored into a series of parallel strands that are interconnected by thin ribbons of the thermoplastic material thereby retaining integrity of the sheet material. The sheet material is then severed along the score line of the thin ribbons to form parallel strands which are cooled and guided to a fly cutter which cubes the strand material.Type: GrantFiled: January 16, 1981Date of Patent: July 20, 1982Assignee: The B. F. Goodrich CompanyInventor: Heung T. Kim
-
Patent number: 4175976Abstract: A non-dusting, relatively coarse particulate material is prepared from a relatively more finely divided material such as a pigment and an organic binder comprising a solid hexahydric alcohol with little or no affinity for water and a melting point within the range of 60.degree. to 200.degree. C. The finely divided material and binder are blended and cast with the aid of an aqueous carrier medium, and then heated to form a solid layer which can be broken up into flake-like particles or chunks. These flakes or chunks are not "agglomerated" or "pelletized" in the usual sense of these terms. The relative fine particles in the flakes are, apparently, bound up in a solid suspension comprising an adherent film or matrix.Type: GrantFiled: April 10, 1978Date of Patent: November 27, 1979Inventor: Fitzhugh L. Avera
-
Patent number: 4129489Abstract: A novel method of preparing polymer based powder coating compositions involves as a first step the preparation of a mixture containing one or more ethylenically unsaturated monomers which are polymerizable by ionizing radiation, and optionally other coating composition additives. Optional additives which may be incorporated in the mixture include pigments, internal or external crosslinkers, chain transfer agents, flow promoters, plasticizers, viscosity control agents, minor proportions of resins, and the like. Pigments are especially desirable additives. The next step in the process is to apply a coating of the mixture to a substrate. Then, the coated substrate is subjected to ionizing radiation to polymerize the ethylenically unsaturated monomers and thereby form a solid film. Finally, the film is broken into particles by any of several mechanical means to form a polymer based powder coating composition which when applied to a substrate and baked, fuses to produce a film.Type: GrantFiled: April 24, 1978Date of Patent: December 12, 1978Assignee: PPG Industries, Inc.Inventors: Roger M. Christenson, Rostyslaw Dowbenko, Joseph M. Makhlouf
-
Patent number: 4081502Abstract: A process for the production of a thermoplastic composition comprising a homogeneous blend of(i) 100 parts by weight of a saturated or unsaturated polyolefin elastomer having a green polymer tensile strength of at least 20 kp./cm.sup.2 at 25.degree. C. and a viscosity of 20-150 Mooney units (ML.sub.1+4 at 100.degree. C.) and(ii) 25-900 parts by weight of bitumen, which comprises:(a) admixing bitumen with said elastomer in a kneader at a temperature of about 50.degree.-220.degree. C. for about 1-100 minutes to form a viscous homogeneous composition;(b) cooling the resultant composition to minimize the adhesion to the inner wall and rotor of the kneader; and(c) ejecting at least 95% of the cooled composition from the kneader.Type: GrantFiled: October 17, 1975Date of Patent: March 28, 1978Assignee: Chemische Werke Huls AktiengesellschaftInventors: Harald Blumel, Paul Lipp
-
Patent number: 4076928Abstract: Water swellable absorbent articles, made from copolymers having a copolymerized crosslinker, together with methods for their preparation, and a composition containing a copolymerized crosslinker useful to make said articles are disclosed. The copolymers comprise 25-98% by weight of an alkali metal salt of an olefinically unsaturated monosulfonic or monocarboxylic acid, about 2-50% by weight of an olefinically unsaturated monocarboxylic acid and about 0.1-5.0% by weight of an N-substituted acrylamide or methacrylamide. The articles are crosslinked by heating and/or removing substantially all of the water from the precursor composition.The crosslinked compositions, in the form of a film, can be disintegrated to form flakes, strips or powders.The absorbent articles are useful as surgical sponges, diapers, tampons, meat trays, bath mats and the like.Type: GrantFiled: August 20, 1975Date of Patent: February 28, 1978Assignee: The Dow Chemical CompanyInventor: James R. Gross
-
Patent number: 4056592Abstract: A process for the preparation of thermosetting resin powder paints comprising the steps of extruding a melt of a resinous composition for a thermosetting powder paint, continuously cooling the composition and forming it into a sheet, and pulverizing the formed sheet. Air blasting nozzles are directed at the sheet while it is on the cooling rolls. The adherence between the sheet and the rolls is improved, and the air blasting nozzles provide an auxiliary means for cooling the sheet.Type: GrantFiled: July 7, 1975Date of Patent: November 1, 1977Assignees: Dai Nippon Toryo Co., Ltd., The Japan Steel Works Ltd.Inventors: Ryoji Izumi, Shoji Kobayashi, Toshiharu Ono, Toru Shirato, Akiyoshi Fujii, Tadashi Okihara