Polymerizations based on cyclic oligomer
This invention consists of polymerizing cyclic oligomers in the presence of one or more linear polymers which may be recycled from the product stream. The polymer product of this process may be a homo... Read More
Inventors: Burch, Jr., Robert Ray; Dembek, Alexa Ann; Lustig, Steven Raymond; Spinu, Maria;, Assignee: E. I. du Pont de Nemours and Company (Wilmington, DE) |
Water-tight ear enclosure
In one aspect of the present invention, a water-tight enclosure for an ear is provided which features a membrane which is substantially impervious to water that is gathered to form an opening for rece... Read More
Inventors: Harris, Paul W.;, Assignee: |
Hair dye composition containing a cationic resin
What is claimed is: 1. A hair dye composition comprising a hair dye support in the form of a cream or gel, at least one oxidation dye in an amount between 0.006 and 6 percent by weight relative to the... Read More
Inventors: Papantoniou, Christos;, Assignee: L'Oreal (Paris, FR) |
Process for the production of solutions of lower aliphatic carboxylic acid salts of cationic dyestuffs
We claim: 1. A process for producing a solution of a salt of a lower aliphatic carboxylic acid of a cationic dyestuff which consists essentially of converting a cationic dyestuff halide salt into the ... Read More
Inventors: Lang, Walter; Hegar, Gert;, Assignee: Ciba-Geigy Corporation (Ardsley, NY) |
Magnetic recording medium
The present invention has for its object to solve the problem of low reproducing output of the conventional vertical recording media and to provide a perpendicular magnetic recording medium which show... Read More
Inventors: Kitakami, Osamu; Fujiwara, Hideo; Ogawa, Yoichi;, Assignee: Hitachi Maxell, Ltd. (Osaka, JP) |
Magnetic recording medium, method for its production, and system for its use
In an effort to resolve the various deficiencies of the prior art, the present invention provides a magnetic recording medium having excellent magnetic recording properties, and which enables high-den... Read More
Inventors: Ishikawa, Akira; Hishiyama, Sadao; Yamamoto, Tomoo; Shiroishi, Yoshihiro; Ohno, Tomoyuki; Yahisa, Yotsuo; Kato, Yukio;, Assignee: Hitachi, Ltd. (Tokyo, JP) |
Protective strip overlay for truck boxes
An important object of my invention is to provide an effective protective overlay for the highly vulnerable metal surfaces of truck boxes without having to drill holes through the metal. More specific... Read More
Inventors: Valeri, William J.;, Assignee: Irathane Systems Incorporated (Hibbing, MN) |
Lagging-reinforced structure
OF DISCLOSURE The lagging-reinforced structure of the present invention is hereinafter disclosed in conjunction with attached drawings. In FIG. 1, A indicates a belt conveyor which comprises an endle... Read More
Inventors: Kawamoto, Masaichi;, Assignee: |
Non-slip luminescent device for surfaces such as stair treads
Having thus described the preferred embodiment of the present invention, the following is claimed as new and desired to be secured by Letters Patent: 1. An apparatus comprising: a plate member present... Read More
Inventors: Andreo, Jorge O.;, Assignee: Balco, Inc. (Wichita, KS) |
Alkylene oxide condensates of tetramethylpiperidine alcohols or glycols
We claim: 1. A mixture of alkylene oxide condensates which consists essentially of ring-substituted 2, 2, 6, 6-tetramethylpiperidine, having a substituent at the 1 position and/or a substituent at the... Read More
Inventors: Tanikella, Murty S.; Von Susani, Odorich;, Assignee: E. I. Du Pont de Nemours and Company (Wilmington, DE) |
Method of producing polyurethanes
What is claimed is: 1. A method of producing polyurethanes which comprises reacting an at least partially blocked isocyanate compound with an active hydrogen-containing compound in the presence of at ... Read More
Inventors: Suenobu, Koreyoshi; Kohara, Masanori; Hidaka, Yasuhiro; Katsuyama, Kazuki; Kinishi, Ryoichi;, Assignee: Yoshitomi Pharmaceutical Industries, Ltd. (Osaka, JP) |
Epoxy curing agent composition
Hindered aromatic diamines that can be used in the practice of the invention are aromatic diamines in which each position ortho to each amino group bears a hydrocarbyl or hydrocarbylthio substituent,... Read More
Inventors: Wiggins, Paul L.;, Assignee: Ethyl Corporation (Richmond, VA) |
Composite ceramic articles and method of making
What is claimed is: 1. A composite structure comprising at least two ceramic bodies, each body selected from the group consisting of rare earth based, alumina based, and silica based ceramic compositi... Read More
Inventors: Kiger, William T.; Kamin, deceased, George J.; Kamin, administratrix, by Shirley A.;, Assignee: GTE Sylvania Incorporated (Stamford, CT) |
Method for casting metal alloys
I claim: 1. A method for casting eutectic composition nickel base superalloys to form a hollow article which comprises introducing molten eutectic composition nickel base superalloy into a mold contai... Read More
Inventors: Mazdiyasni, Khodabakhsh S.;, Assignee: The United States of America as represented by the Secretary of the Air (Washington, DC) |
Protective all-purpose helmet
OF THE PREFERRED EMBODIMENTS Preferred embodiments representing the best mode presently contemplated of carrying out the invention are illustrated in the drawings. Referring to FIGS. 1, 2, and 7, the... Read More
Inventors: Harris, Leon J.;, Assignee: |
Dental glove
The use of disposable gloves by dentists (including all persons whose profession is the care of teeth, such as doctors of dental surgery, dental hygienists, and dental assistants) is desirable both fr... Read More
Inventors: Pugh, Bradley L.;, Assignee: Akwell Industries, Inc. (Dothan, AL) |
Thick film conductor compositions
OF THE INVENTION A. Conductive Material The finely divided metals used in the invention can be any of those noble metal powders which are commercially available for use in thick film conductors. The ... Read More
Inventors: Nair, Kumaran M.;, Assignee: E. I. Du Pont de Nemours and Company (Wilmington, DE) |
Magnetically anisotropic R-T-B magnet
Accordingly, an object of the present invention is to provide a plastically hot-worked magnet having a uniform maximum energy product distribution and suffering from no cracking. As a result of intens... Read More
Inventors: Shinoda, Makoto; Iwasaki, Katsunori; Tanigawa, Shigeho; Tokunaga, Masaaki;, Assignee: Hitachi Metals Ltd. (Tokyo, JP) |
Humidity sensor, material therefor and method
What is claimed is: 1. The method of making a humidity sensor comprising: forming a screen-printable paste including, on a dry basis, at least 2 wt. % of finely divided cobalt oxide powder and a major... Read More
Inventors: Frazee, Lawrence E.;, Assignee: Plessey Incorporated (Melville, NY) |
Electrical circuit element comprising thick film resistor bonded to conductor
It is claimed is: 1. An electrical circuit element comprising a thick film resistor comprising preformed glass frit, wherein the glass frit is produced by heating a finely-divided mixture of glass-for... Read More
Inventors: Langley, Robert C.; Abrash, Muriel;, Assignee: Engelhard Minerals & Chemicals Corporation (Iselin, NJ) |
Polysubstituted cyclopentene derivatives
OF PREFERRED EMBODIMENTS The unsaturated compounds of Formula I can be prepared easily by the Wittig Reaction of 1 with .alpha.-bromoalkanoic esters with 3 to 5 carbon atoms in the alkanoic acid port... Read More
Inventors: Klein, Erich; Brunke, Ernst J.;, Assignee: Dragoco Gerberding & Co GmbH (Holzminden, DE) |
Heated laminated window and method of assembling same
The present invention relates to a transparent electroconductive window which comprises a non-electroconductive assembly element, an electroconductive circuit portion carried by said element, and a se... Read More
Inventors: Shoop, George W.;, Assignee: PPG Industries, Inc. (Pittsburgh, PA) |
Ultrahigh molecular weight polyethylene composite for printed circuit board and antenna base material
According to the present invention there are provided an ultrahigh molecular weight polyethylene composite for use in a base material for printed circuit board, antenna and the like, a base material i... Read More
Inventors: Cohen, Yachin; Rein, Dimitri; Vaykhansky, Lev;, Assignee: Polyeitan Composites Ltd. (Nesher, IL) |
Vitreous enamel composition containing palladium powder
What is claimed is: 1. A vitreous enamel composition comprising 1 part by weight of a vitreous enamel solid component composed of (1) 90- 99.9 wt. % of glass powder consisting of 30 to 70 wt. % of SiO... Read More
Inventors: Moritsu, Yukikazu; Yamada, Kooji; Wada, Masatoshi; Munemoto, Eiji;, Assignee: Okuno Chemical Industry Co., Ltd. (JP) |
Method of coating geological formations as well as air- and fire barriers
What is claimed as new and desire to be protected by Letters Patent is set forth in the appended claims: 1. A method of coating geological formations as well as air- and fire barriers, comprising the ... Read More
Inventors: Cornely, Wolfgang; Esser, Heinz; Schmidt, Rudolf;, Assignee: Bergwerksverband GmbH (Essen, DE) |
Method for treating a magnetic recording medium
What is claimed is: 1. A dry-calendering method of treating a magnetic tape formed of a flexible base of non-magnetic material supporting a magnetic layer containing finely-divided magnetic particles ... Read More
Inventors: Somezawa, Masashi; Higuchi, Shigetaka; Shimizu, Tatsuo; Ishibashi, Isao;, Assignee: Sony Corporation (Tokyo, JP) |
Calender roll for use in super calender for magnetic tapes
OF THE EMBODIMENTS In FIG. 1, a fibrous cloth is wound around on a roll core 5 to form a cylindrical inner roll portion of layers 2 with a total thickness of 20 to 30 mm and the cylindrical layers 2 ... Read More
Inventors: Watanabe, Kenji; Akashi, Goro;, Assignee: Fuji Photo Film Co., Ltd. (Minami-ashigara, JP) |
Imprinting machine with wheel setting rack mechanism
OF A PREFERRED EMBODIMENT Referring to the drawings, wherein like reference characters designate corresponding parts throughout the several figures, the imprinting machine of the present invention, i... Read More
Inventors: Barbour, William P.;, Assignee: Security Imprinter Corporation (Walkersville, MD) |
Cleaning medium for magnetic recording devices, in which the cleaning medium includes a substrate, a lower coating layer containing non-magnetic inorganic particles, and a cleaning area
OF THE INVENTION By way of example, the cleaning medium in accordance with the present invention may take on the form of a cleaning tape. Basically, the cleaning medium (cleaning tape) in accordance ... Read More
Inventors: Inaba, Hiroo; Suzuki, Masaki; Matsubaguchi, Satoshi; Takano, Hiroaki;, Assignee: Fuji Photo Film Co., Ltd. (Kanagawa-ken, JP) |
Write head architecture for improved manufacturability
What is claimed is: 1. A disk drive write head comprising: a bottom pole; a write gap layer on said bottom pole; a first insulation layer on said write gap layer; a coil on said first insulation layer... Read More
Inventors: Seagle, David J.; He, Qing; Wang, Lien-Chang; Zhao, Ming;, Assignee: Western Digital (Fremont), Inc. (Fremont, CA) |
Manufacturing Materials 
