Process and apparatus for forming essentially spherical pellets directly from a melt
We claim: 1. A process for forming solid pellets of essentially spherical configuration from a melt, comprising the steps of (a) providing a column of predetermined height of a melt of a material to b... Read More
Inventors: O'Brien, John L.; Perron, Robert R.; Strong, Peter F.;, Assignee: Arthur D. Little, Inc. (Cambridge, MA) |
Method for the manufacture of tubular bodies of semiconductor material
1. Method of producing a tubular shaped body of silicon semiconductor material and concurrently provide said tubular shaped body with an annular reinforcement, the steps of: heating by electrical mean... Read More
Inventors: Dietze, Wolfgang; Reuschel, Konrad; Kasper, Andreas;, Assignee: Siemens Aktiengesellschaft (Berlin, Munich, Erlangen, DT) |
Process for producing molded structural foam article having a surface that reproducibly and faithfully replicates the surface of the mold
What is claimed is: 1. In a process for injection molding foamed thermoplastic articles characterized by a foamed core, a relatively non-foamed exterior shell, and a surface that reproducibly and fait... Read More
Inventors: Angell, Jr., Richard G.; Anderson, Robert J.; Hobbs, Kenneth E.; James, David E.; Marsh, B. Duane;, Assignee: Union Carbide Corporation (New York, NY) |
Method of making thermoplastic articles with porous cores
I claim: 1. A method of making a thermoplastic article with a highly porous core surrounded by a skin of low to zero porosity, comprising the steps of: providing a supply of substantially homogeneous ... Read More
Inventors: Hanning, Robert;, Assignee: |
Process for producing moldings
I claim: 1. A process for producing a molding, comprising the steps of injecting plastified synthetic resin material into a closed mold cavity through an inlet in said mold cavity in an amount less th... Read More
Inventors: Kataoka, Hiroshi;, Assignee: Asahi-Dow Limited (Tokyo, JP) |
Process for making low density chlorinated polyvinyl chloride foam
OF THE INVENTION The chlorinated polyvinyl chloride low density foams of the present invention are prepared from a composition comprising chlorinated polyvinyl chloride polymer, a primary blowing age... Read More
Inventors: Hall, Dale R.; Bush, Charles N.;, Assignee: The B. F. Goodrich Company (Akron, OH) |
Method of making woven acoustical panel
FIG. 1 illustrates a woven acoustical panel 10 according to the invention, the panel 10 being comprised principally of a three-dimensional woven fabric 12. The panel 10 is of relatively thin, general... Read More
Inventors: Hatch, Donald M.; Lee, George D.;, Assignee: Hitco (Irvine, CA) |
Manufacture of crimped polyamide filaments yarn
OF THE INVENTION The process of the invention will be understood better from the following description, taken in connection with the accompanying drawing. In the accompanying drawing, filaments 4 hav... Read More
Inventors: Okada, Reisuke; Okuno, Hiroshi; Fukama, Toshio;, Assignee: Toray Industries, Inc. (Tokyo, JA) |
Method for forming hollow articles from thermoplastic sheeting or film using an expandable plug
What is claimed is: 1. A method of forming a hollow article from thermoplastic synthetic resinous sheeting or film, comprising: a. providing an expandable plug and forming mold in an apparatus adapted... Read More
Inventors: Tigner, Reuben A.; Mounts, Lewis S.;, Assignee: The Dow Chemical Company (Midland, MI) |
Recovery of aluminum from alunite ore using acid leach to purify the residue for bayer leach
1. A process for recovering aluminum hydroxide from alunite ore which comprises: a. grinding the ore to particulate form; b. oxidation roasting the particulate ore to remove water and sulfur and conve... Read More
Inventors: Loest, Kent W.;, Assignee: Southwire Company (Carrollton, GA); National Steel Corporation (Pittsburgh, PA); Earth Sciences, Inc. (Golden, CO) |
Process for preparing polyphenylene oxides
OF THE INVENTION The phenols which can be condensed by our process may be represented by the following formula ##STR1## where R.sub.1, R.sub.2, R.sub.3 and R.sub.4 are substituents selected from the ... Read More
Inventors: Tomita, Tetsuo; Yoshii, Tadashi; Ito, Akira;, Assignee: Mitsubishi Gas Chemical Company, Inc. (Tokyo, JA) |
Guide apparatus for deflecting a linear structure
The invention is hereby claimed as follows: 1. A method utilizing an expandable mandrel for producing a filament deflecting curved guide tube within a casing. having an entry and exit opening, the gui... Read More
Inventors: Burow, Burghard;, Assignee: Barmag Barmer Maschinenfabrik Aktiengesellschaft (Wuppertal, DT) |
Dilutable resole resin solutions having stabilized dispersed inert salts
What is claimed is: 1. A stable dilutable aqueous solution of a resole resin having pH of 3 to 8.5 comprising: a. said resole resin having a number average molecular weight is less than about 250, a w... Read More
Inventors: Higginbottom, Harold P.;, Assignee: Monsanto Company (Saint Louis, MO) |
Connector for duct systems for low temperature fluids
We claim: 1. A connector for a multipipe duct system having two duct parts each comprising a central flow passage, and at least one vacuum chamber coaxially surrounding said flow passage, said connect... Read More
Inventors: Asztalos, Stefan; Stephan, Alfred; Mayer, Reinhold;, Assignee: Linde Aktiengesellschaft (Wiesbaden, DE) |
Patterning apparatus for knitting machines, particularly for manufacturing patterned knitted pile fabrics on crochetting machines
What is claimed is: 1. In a pattern-making device for a pile knitting machine for manufacturing patterned knitted pile fabrics, the knitting machine being of the type having a row of needles which mov... Read More
Inventors: Lindner, Heinz;, Assignee: VEB Wirkmaschinenbau Karl-Marx-Stadt (Karl-Marx-Stadt, DL) |
Flow diversion means
What I claim is: 1. Flow diversion means for a sump or the like adapted to collect separately, as run-off liquid from a surface; various liquids including a process liquid from a supply pipe, said flo... Read More
Inventors: Clifford, Gary John;, Assignee: |
Polymer polyblend composition
What is claimed is: 1. An improved polymeric polyblend composition characterized by a blend of: A. a polymer of at least one monoalkenyl aromatic monomer having dispersed therein an amount sufficient ... Read More
Inventors: Kruse, Robert L.;, Assignee: Monsanto Company (St. Louis, MO) |
Pelleting of carbon black
What is claimed is: 1. The method of pelleting carbon black which comprises: a. introducing an aqueous pelleting liquid and loose carbon black in the weight ratio of about 2:3 to 2:1 into one end of a... Read More
Inventors: Hunt, Harold R.;, Assignee: Phillips Petroleum Company (Bartlesville, OK) |
Production of fibrous sheet material
What we claim is: 1. A method of producing a self-sustaining sheet including essentially cellulosic fibrous material comprising: (a) dry laying a web of essentially cellulosic fibres upon a movable su... Read More
Inventors: Curry, Harold G.; Attwood, Brian W.; White, Derek G. W.; Christensen, John M.; Kroyer, Karl K. K.;, Assignee: Karl Kroyer St. Anne's Limited (Bristol, GB2) |
Multifilament composites
What is claimed is: 1. A composite structure comprising, in combination: a body, and a three-dimensional array of flexible reinforcing yarns interwoven together and embedded in said body, said array c... Read More
Inventors: Crawford, Jr., James A.;, Assignee: Fiber Materials, Inc. (Biddeford, ME) |
Moulded light-weight framed panel
OF THE PREFERRED EMBODIMENTS As shown in FIG. 1 the illustrated panel which is the subject of the invention comprises a sheet 1 of corrugated cardboard of the type having two smooth surfaces, constit... Read More
Inventors: Roth, Jacques; Roth, Michel; Seiler, Paul; Lavenir, Roger; Manigold, Alain;, Assignee: Roth Freres, S.A. (Strasbourg-Meinau, FR) |
Dental filling materials
OF THE INVENTION As previously described, the present invention provides an improved treated inorganic filler material for use in conjunction with known monomeric resin binders to produce a direct de... Read More
Inventors: Erickson, Wallace A.; Suh, Byoung I.;, Assignee: Wallace A. Erickson & Company (Chicago, IL) |
Adhesive composition
What is claimed is: 1. An adhesive composition containing monomeric -.alpha.-cyanacrylates selected from the group consisting of alkyl-.alpha.-cyanacrylates, wherein alkyl group contains from 1 to 7 c... Read More
Inventors: Korshak, Vasily Vladimirovich; Polyakova, Antonina Mikhailovna; Mager, Kira Alexandrovna; Semyantsev, Vyacheslav Nikolaevich;, Assignee: |
Process for the production of polyamide-polyamide-acid copolymers
What we claim is: 1. A process for preparing a polyamide/polyamide-acid copolymer having an inherent viscosity of 0.1 to 2.5 or the derivative cyclized to the corresponding polyamide-polyimide copolym... Read More
Inventors: Lohmann, Dieter; Furrer, Peter; Darms, Roland; Greber, Gerd;, Assignee: Ciba-Geigy Corporation (Ardsley, NY) |
Production of tetramethylene terephthalate polymers using 225.degree. to 248.degree. C. polycondensation temperature
I claim: 1. A process for preparing a polyester comprising; transesterifying 1,4-butanediol and at least one dialkyl benzenedicarboxylate consisting of 80 to 100 mole percent of at least one dialkyl t... Read More
Inventors: Cleary, James W.;, Assignee: Phillips Petroleum Company (Bartlesville, OK) |
Shaft coupling
It is an object of the present invention to provide a shaft coupling which can transmit a comparatively great torque, can accomodate mutual misalignments of shafts, is as compact as a gear coupling of... Read More
Inventors: Fukuda, Kazuichi;, Assignee: Kanto Special Steel Works Ltd. (Fujisawa, JP) |
Out-of-line igniter
The present invention relates to an igniter assembly which is designed and constructed to be mated with an aircraft parachute flare and to ignite a pyrotechnic composition upon deployment of a parachu... Read More
Inventors: Herold, Stanley J.; LaGrange, Donald E.; Norris, Steven R.; Sanders, David K.; Wildridge, John E.;, Assignee: The United States of America as represented by the Secretary of the Navy (Washington, DC) |
Flame-resistant resin composition
What is claimed is: 1. A flame-resistant resin composition consisting essentially of 100 parts by weight of a polytetramethylene terephthalate, 3 to 40 parts by weight of a flame retardant represented... Read More
Inventors: Kamada, Kazumasa; Handa, Ryoji; Hongo, Masafumi;, Assignee: Mitsubishi Rayon Co., Ltd. (Tokyo, JA) |
Process for dyeing linear polyesters in the melt
I claim: 1. Process for dyeing linear polyester polymers in the melt, which process comprises using as a dyeing agent a mixture consisting of 0.001-0.2% by weight, relative to the amount of polyester,... Read More
Inventors: Babler, Fridolin;, Assignee: Ciba-Geigy Corporation (Ardsley, NY) |
Method for blow molding plastic articles
Having fully described an operative embodiment of this invention, I now claim: 1. In a method of making a blow molded container having an injection molded finish portion and a blown body portion havin... Read More
Inventors: Uhlig, Albert R.;, Assignee: Owens-Illinois, Inc. (Toledo, OH) |
Nonmetallic Processes 
