Synthesis of amino acid-derived bioerodible polymers
OF THE PREFERRED EMBODIMENTS In the preparation of the polycarbonates of the present invention, amino acid-derived diphenol compounds are employed as the starting materials. Useful amino acid-derived... Read More
Inventors: Kohn, Joachim B.; Pulapura, Satish K. K.;, Assignee: Rutgers, The State University of New Jersey (New Brunswick, NJ) |
Flexible polyurethane foams having improved load bearing characteristics
What is claimed is: 1. A method of increasing the load bearing of a flexible polyurethane foam prepared by reacting an organic polyisocyanate and a polyol in the presence of a blowing agent, a catalys... Read More
Inventors: Radovich, David A.;, Assignee: Mobay Chemical Corporation (Pittsburgh, PA) |
Resin-coated sand composition and method for producing same
OF THE INVENTION In order to improve the shake-out property after casting metals having a low melting temperature such as aluminum, the chemical crosslinking structure of cured phenolic resin binders... Read More
Inventors: Matsushima, Noriaki; Saeki, Yukio; Kirabayashi, Hajime;, Assignee: Sumitomo Durez Company, Ltd. (Tokyo, JP) |
Method and system for regenerating fluidizable catalyst particles
The present invention relates to the conversion of hydrocarbon feed materials in the presence of high activity fluidizable catalyst particles and the regeneration of the catalyst particles. In a more ... Read More
Inventors: Gross, Benjamin; Owen, Hartley;, Assignee: Mobil Oil Corporation (New York, NY) |
Method of preparing benzene and xylenes
What is claimed is: 1. A method of preparing benzene and xylenes from catalysates of reforming of gasoline fractions comprising a mixture of aromatic C.sub.6 -C.sub.10 hydrocarbons and non-aromatic hy... Read More
Inventors: Maslyansky, Gdal N.; Rabinovich, Georgy L.; Treiger, Leonid M.; Gokhman, Boris K.; Seleznev, Viktor D.;, Assignee: |
Rotary drive sprinkler
In accordance with the invention, an improved rotary drive sprinkler includes a spray head rotatably driven in a series of relatively small rotational steps by a water-powered piston drive assembly. T... Read More
Inventors: Troup, deceased, Edward M.; Kendall, Giles A.; Han, Joseph U.; Moralez, Christopher M.; Gongwer, Calvin A.;, Assignee: Anthony Manufacturing Corp. (Azusa, CA) |
Dental prosthesis
In accordance with the invention, a prosthetic device for mounting to bone tissue and provided with a bone growth receiving open structure is provided with a bone growth stimulating biochemical matrix... Read More
Inventors: Gordon, Maurice;, Assignee: |
Method for the treatment of periodontal pockets with a composition comprising collagen and an antiseptic or anti-inflammatory substance
What is claimed is: 1. The method of treating a patient having at least one periodontal pocket which comprises introducing into said pocket a pharmaceutical composition comprising collagen as the vehi... Read More
Inventors: Thomas-Leurquin, Genevieve; Gayot, Anne; Poitou, Pierre; Basquin, Serge;, Assignee: Pierre Fabre Medicament (Paris, FR) |
Sulfonation apparatus
The present invention relates to an apparatus for sulfonation which can be effectively employed for large-scale production of sulfonated compounds. Although the present invention is similar to the con... Read More
Inventors: Tsuto, Keiichi; Majima, Kanji; Imamura, Shigeyasu;, Assignee: Kao Soap Co., Ltd. (Tokyo, JA) |
Catalytic cracking process
Having described the invention, what is claimed is: 1. In a catalytic cracking process unit wherein a gas oil feed is cracked in a cracking zone at an elevated temperature in the presence of a crackin... Read More
Inventors: Gladrow, Elroy M.; Winter, William E.;, Assignee: Exxon Research & Engineering Co. (Florham Park, NJ) |
Process for controlling sulfur oxides using an alumina-impregnated catalyst
OF THE INVENTION The present invention is used in connection with a fluid catalyst cracking process for cracking hydrocarbon feeds. The same sulfur-containing hydrocarbon feed normally processed in c... Read More
Inventors: Blanton, Jr., William A.; Flanders, Robert L.;, Assignee: Chevron Research Company (San Francisco, CA) |
Shaped articles which are composed of a copolymer containing fluorine groups and which are selectively permeable to liquids and gases and are simultaneously oleophobic and oleophilic
It is therefore an object of the present invention to provide shaped articles which, because of the qualitative and quantitative chemical structure of the copolymer of which they are formed, have the ... Read More
Inventors: Walch, Axel; Seifried, Walter; Michel, Wolfgang; Kuhls, Jurgen; Wildhardt, Jurgen;, Assignee: Hoechst Aktiengesellschaft (Frankfurt am Main, DE) |
Protein polymer hydrogels
What is claimed is: 1. The method of preparing a three-dimensional structure comprising preparing an aqueous acidic solution of a non-crystalline, natural animal or vegetable protein polymer or mixtur... Read More
Inventors: Battista, Orlando A.;, Assignee: |
Antitumor anthracycline glycosides, intermediates thereof, and composition and use thereof
We claim: 1. An anthracycline of the formula (I): ##STR7## wherein R.sup.1 is hydrogen or hydroxy and either R.sup.2 or R.sup.3 is hydrogen with the other being --CH.sub.2 NH.sub.2, and pharmaceutical... Read More
Inventors: Bargiotti, Alberto; Bordoni, Teresa; Zini, Pierangelo; Penco, Sergio;, Assignee: Farmitalia Carlo Erba S.p.A. (Milan, IT) |
Purification of carboxylic acid anhydrides contaminated with halogen or halides
I claim: 1. A process for the purification of carboxylic acid anhydrides contaminated with halogen and halide values to reduce the quantity of said values in the anhydrides, which comprises treating s... Read More
Inventors: Rizkalla, Nabil;, Assignee: The Halcon SD Group, Inc. (Little Ferry, NJ) |
Unsaturated poly-(carbonate-urethanes) and their applications to photocrosslinking
We claim: 1. The compounds poly-(carbonate-urethanes) with acrylic unsaturations, of the formula ##STR6## in which: X is hydrogen or methyl, R is a substituted or unsubstituted alkylene, cycloalkylene... Read More
Inventors: Coqueugniot, Annick G.; Bruggeman, Robert J.; Piteau, Marc D.;, Assignee: Societe Nationale des Poudres et Explosifs (Paris, FR) |
Soft and tough radiation-curable coatings for fiber optic application
What is claimed is: 1. A radiation-curable liquid coating composition which cures on radiation exposure to form a soft and tough coating comprising, a polyurethane, polyamide or polyurea oligomer havi... Read More
Inventors: Ansel, Robert E.;, Assignee: DeSoto, Inc. (Des Plaines, IL) |
Ultraviolet curable optical glass fiber coatings from acrylate terminated, end-branched polyurethane polyurea oligomers
What is claimed is: 1. A ultraviolet curing liquid coating composition which, when cured with ultraviolet light in the presence of a photoinitiator, either provides a single coating for optical glass ... Read More
Inventors: Zimmerman, John M.; Bishop, Timothy E.;, Assignee: DeSoto, Inc. (Des Plaines, IL) |
Single-coated optical fiber
What is claimed is: 1. A method of producing coated optical glass fiber comprising, applying to freshly formed optical glass fiber a coating of radiation-curable liquid coating composition comprising:... Read More
Inventors: Ansel, Robert E.; Cutler, Jr., Orvid R.;, Assignee: DeSoto, Inc. (Des Plaines, IL) |
Two stage activation of fluorided chromium-containing catalyst
It is an object of this invention to provide a catalyst for producing narrow molecular weight distribution polymer in a particle-form process; AND IT IS YET A FURTHER OBJECT OF THIS INVENTION TO PROVI... Read More
Inventors: Nasser, Jr., Benny E.; Dietz, Richard E.;, Assignee: Phillips Petroleum Company (Bartlesville, OK) |
Non-impact electrothermic recording method
It is therefore an object of the present invention to provide a non-impact electrothermic recording method capable of reproducing images with high resolution and excellent image gradation faithful to ... Read More
Inventors: Kawanishi, Toshiyuki; Tabata, Yukio;, Assignee: Ricoh Company, Ltd. (Tokyo, JP) |
Method and device for forming ultrafine particle film of compound
OF THE EMBODIMENTS As shown in FIG. 1, a vacuum vessel 1 is composed of a bell jar 1A, a feed through collar 1B and a base plate 1C. Within the vacuum vessel 1 are provided electrodes 2a and 2b, each... Read More
Inventors: Ikeda, Hirotane; Hattori, Tadashi; Ohta, Minoru; Mukainakano, Shinichi;, Assignee: Nippon Soken, Inc. (Nishio, JP) |
Method of desensitization using desensitizing composition
OF THE INVENTION The above organic silicone reaction products used in this invention (hereinafter compounds of the invention) are known as nonionic surface active agents containing silicon and are th... Read More
Inventors: Miyamoto, Akio; Matsukawa, Hiroharu; Yamamoto, Nobuo;, Assignee: Fuji Photo Film Co., Ltd. (Minami-ashigara, JA) |
Photodetection and current control devices
We claim: 1. A photodetection device comprising: means responsive to the intensity of incident radiation for providing a corresponding output signal, said responsive means including a thin semiconduct... Read More
Inventors: Ovshinsky, Stanford R.; Madan, Arun;, Assignee: Energy Conversion Devices, Inc. (Troy, MI) |
Heat transfer sheet
OF THE INVENTION Each material, etc. of a heat transfer sheet of the present invention will be described in detail hereinafter. Base Film A conventional base film can be used as it is, as a base film... Read More
Inventors: Mizobuchi, Akira; Hida, Yoshiaki; Umise, Shigeki; Yamamoto, Kyoichi; Takahashi, Kyohei;, Assignee: Dai Nippon Insatsu Kabushiki Kaisha (JP) |
Polycarbonate resin composition for optical use
OF THE INVENTION The polycarbonate resin of the present invention is obtained by various manufacturing methods, including, for example, polymers and copolymers obtained by the phosgene process, in wh... Read More
Inventors: Urabe, Yoshitomi; Hayashida, Hironori; Ohtani, Yoshiaki;, Assignee: Mitsubishi Kasei Corporation (Tokyo, JP) |
Asphalt highway joint sealant
That which is claimed is: 1. A composition which is stable in the absence of moisture but curable at room temperature upon exposure to moisture to a silicone elastomer consisting essentially of a mixt... Read More
Inventors: Dietlein, John E.;, Assignee: Dow Corning Corporation (Midland, MI) |
Hydrophobically associating dispersants used in forming polymer dispersions
What is claimed is: 1. A process for polymerizing: (a) a first cationic monomer represented by the formula: ##STR11## where R.sub.1 is either hydrogen or CH.sub.3 ; R.sub.2 and R.sub.3 are each an alk... Read More
Inventors: Ramesh, Manian; Cramm, Jeffrey R.; Werges, Darrell L.; Howland, Christopher P.;, Assignee: Nalco Chemical Company (Naperville, IL) |
Apparatus for recovering refrigerant with offset cam
A lightweight, i.e. about 30 lb, apparatus for recovering a compressible refrigeration fluid from a refrigeration system and delivering the recovered fluid to a refrigerant receiver is described herei... Read More
Inventors: Scuderi, Carmelo J.; Forner, Charles K.;, Assignee: Scuderi; Carmelo J. (Springfield, MA) |
Coolant/lubricant for machine operations
In accordance with the present invention, a non-toxic coolant lubricant is provided which is specifically designed for use in extremely high-load, high-stress machine operations, such as broaching. Th... Read More
Inventors: Yuan, Lin-Sen; Yuan, Lu;, Assignee: Hughes Electronics Corporation (El Segundo, CA) |
Adhesives and Rubbers 
