Abstract: Curable partially plasticised (optionally particulate) compositions comprising partially crystalline polymers which can be made by for example a non-attritive method comprising heating a mixture of the polymer in a preferably moderate curable solvent for the polymer to a temperature above the melting point of the polymer when in the solvent and then cooling whereupon the polymer re-crystallizes from the mixture. Also the use of such compositions in coating and in coating formulation.
Type:
Grant
Filed:
June 1, 1994
Date of Patent:
November 7, 1995
Inventors:
Eric Nield, Daljit K. Suemul, Denis M. H. Bovey
Abstract: A synergistic antimicrobial composition comprising 2-mercaptopyridine N-oxide, and salts thereof, and iodopropargyl butylcarbamate in a ratio to each other which exhibits synergism is disclosed.
Type:
Grant
Filed:
November 4, 1992
Date of Patent:
November 7, 1995
Assignee:
Rohm and Haas Company
Inventors:
Raj I. Mehta, Barry C. Lange, Samuel E. Sherba
Abstract: 3-Azidomethyl-3-nitratomethyloxetane, a novel oxetane compound, is used as a monomer for the formation of homopolymers and copolymers with other known energetic oxetane monomers. The polyethers of the present invention can be subsequently cured to form elastomers suitable for use as energetic binders in propellant formulations or the like.
Type:
Grant
Filed:
January 23, 1995
Date of Patent:
October 31, 1995
Assignee:
Aerojet-General Corporation
Inventors:
Gerald E. Manser, Aslam A. Malik, Thomas G. Archibald
Abstract: Plasma polymerized membranes comprising polymerized aliphatic hydrocyclosiloxane monomers optionally copolymerized with co-monomers and methods for their preparation are described. These methods may be used to coat substrates to impart properties such as hydrophobicity, thromboresistance, gas permeability and biocompatibility.
Type:
Grant
Filed:
November 12, 1993
Date of Patent:
October 31, 1995
Assignee:
Surface Engineering Technologies, Division of Innerdyne, Inc.
Inventors:
Chen-Ze Hu, Eric K. Dolence, Shigemasa Osaki, Clifton G. Sanders
Abstract: Body powder is provided having microcapsules with a colorant located in or on the shell of said microcapsule. The microcapsules are present in an amount effective to impart color to the body powder when viewed in bulk and to substantially decrease in perceptible color upon rubbing said body powder on the skin.
Type:
Grant
Filed:
October 29, 1993
Date of Patent:
October 24, 1995
Assignee:
Minnesota Mining and Manufacturing Company
Inventors:
Robert A. Davis, Sheila M. Nichols, Howard J. Buttery
Abstract: A two-part room temperature curable composition comprising liquid part A containing an organic polymer having reactive silicon groups, and a promoter for the polymerization of a radically-polymerizable monomer as essential components; and liquid part B containing the radically-polymerizable monomer, an initiator for the polymerization of the radically-polymerizable monomer, and an accelerator for the curing of the organic polymer having reactive silicon groups as essential components. The two-part composition can be mixed together at room temperature and has the property of curing rapidly to produce a product with a flexibility equivalent to rubber materials. Thus, when used as a flexible protective coating, potting material, sealing agent or adhesive, this product can reduce working time while guaranteeing high reliability and can prevent pollution of the working environment.
Abstract: Laminates containing one or more plies of substrate material impregnated with a composition containing (A) one or more epoxy resins, (B) one or more curing agent and (C) about 0.00005 to about 0.1 mole per epoxide equivalent of cure controlling catalyst, wherein at least one of components (A) or (B) contain at least one mesogenic moiety, which, optionally, has been subjected to either (a) the application of an electric field, (b) the application of a magnetic field, (c) drawing or shear forces, or (d) any combination thereof, are prepared.
Type:
Grant
Filed:
February 15, 1994
Date of Patent:
October 17, 1995
Assignee:
The Dow Chemical Company
Inventors:
Jimmy D. Earls, Robert E. Hefner, Jr., James L. Bertram, Louis L. Walker, William A. Clay
Abstract: A reaction of perfluoroolefins with bis(silyl) ethers to produce novel partially fluorinated and perfluorinated copolymers and macrocyclic compounds is disclosed.
Abstract: The present invention is concerned with a solid slow release oral pharmaceutical dosage unit which comprises a solid dosage unit made up of an admixture of a therapeutic dosage of an orally effective pharmaceutical product and a cross-linked polymer of amylose with a cross-linking agent selected from 2,3 dibromopropanol and epichlorohydrin, wherein the cross-linking of the polymer has been carried out with from about 0.1 to about 10 g of cross-linking agent per 100 g of amylose.
Type:
Grant
Filed:
February 9, 1994
Date of Patent:
October 10, 1995
Assignee:
Labopharm, Inc.
Inventors:
Mircea A. Mateescu, Vincent Lenaerts, Yves Dumoulin
Abstract: An aluminum-nitrogen polymer is prepared by reacting an organic nitrile with a dialkylaluminum hydride to form an organoaluminum imine, and heating the imine to a temperature of 50.degree. to 200.degree. C. for at least 2 hours. The polymeric product can be subjected to an additional heat treatment to form a more highly cross-linked polymer. After either heat treatment the polymeric product can be further reacted with a primary amine or ammonia. The organoaluminum imine as well as the aminated or non-aminated polymers can be pyrolyzed to form an aluminum nitride-containing ceramic.
Abstract: A method of inhibiting Listeria in a medium comprises adding to the medium an effective amount of tetrahydroisohumulone or hexahydrocolupulone or mixtures or salts thereof to inhibit any Listeria.
Type:
Grant
Filed:
September 19, 1994
Date of Patent:
October 3, 1995
Assignee:
Miller Brewing Company
Inventors:
Michael C. Barney, Lance T. Lusk, Patrick L. Ting, David S. Ryder
Abstract: This invention provides a process for manufacturing aluminum-nitrogen polymers (i.e., polymers having a backbone of alternating aluminum and nitrogen atoms) in which portions of the polymer have an organic substituent on each aluminum and nitrogen atom. The novel polymers so produced are useful for making green shapes pyrolyzable to AlN articles suitable for high performance applications. The process generally comprises reacting an organic nitrile having the formula R.sup.1 CN with a trialkylaluminum compound having the formula R.sup.2 R.sup.3 R.sup.4 Al, and optionally heating the reaction product, to form an organoaluminum imine, and heating the organoaluminum imine to a temperature of at least 300.degree. C. and less than 600.degree. C. for at least two hours to form an aluminum-nitrogen polymer. The polymer or the imine can be pyrolyzed to form an aluminum nitride ceramic article. In the foregoing formulae, R.sup.
Abstract: Dermatological compositions having an effective content of cis-urocaninic acid and/or its derivatives, the process for the produktion of such compositions and the method of use of dermatological compositions having a content of cis-urocaninic acid for the treatment and the prophylaxis of inflammatory dermatoses and for the care and restoration of senstive and stressed skin.
Type:
Grant
Filed:
June 6, 1994
Date of Patent:
October 3, 1995
Assignee:
Bode Chemie
Inventors:
Franz Stab, Udo Hoppe, Gerhard Sauermann, Walter Engel
Abstract: Thermostable compounds are prepared by mixing perylene dianhydride with one or more aminosilanes in a molar ratio of 1:4 in an inert solvent, and the aminosilanes may comprise aminoalkylakoxysilanes. Upon heating the mixture a thermostable coating is formed. Prior to heating the mixture may be spin-applied to a substrate. The coating may be used in semiconductor device fabrication as the mixture has good spin-on characteristics with the cured compound being thermally stable over 600.degree. C. and having good etch characteristics.
Type:
Grant
Filed:
May 27, 1994
Date of Patent:
September 19, 1995
Assignee:
International Business Machines Corporation
Inventors:
Harold G. Linde, Rosemary A. Previti-Kelly, Thomas J. Reen
Abstract: Organopolysiloxanes having a silanol group at both terminal ends of molecular chain thereof are brought into condensation reaction with each other in the presence of a silane or siloxane having at least two dialkylaminosilyl groups per molecule as a condensation catalyst and a triorganosilanol or other endblocking agent, to lengthen the chain of the organopolysiloxane under reaction, whereby a triorganosilyl-endblocked organopolysiloxane with a high polymerization degree is obtained. The process yields a triorganosilyl-endblocked high-polymerization-degree organopolysiloxane while effectively suppressing or preventing the formation of low-molecular-weight siloxanes.
Abstract: This invention relates to a novel family of phosphorylated polysiloxanes which are non-ionic and water soluble. When these polysiloxanes are dissolved in water, the resulting solutions exhibit low surface tensions. The invention also relates to phosphorylated polysiloxanes which are gels or hydrogels. The invention further contemplates methods of synthesizing the phosphorylated polysiloxanes.
Type:
Grant
Filed:
July 16, 1993
Date of Patent:
September 12, 1995
Assignee:
Research Foundation of the State of New York
Abstract: An elastic composite is provided having natural rubber and epoxidized natural rubber components. Compared to known composites, the present composition achieves reduced oil swell and absorption, lower permanent set, lower modulus of elasticity, and high tear strength. When formed in a tape, the composition is extremely useful for legbands, straps and contours of swimwear and other garments.
Type:
Grant
Filed:
July 25, 1994
Date of Patent:
September 5, 1995
Assignee:
The Moore Company
Inventors:
Patrick J. Curtin, Timothy M. Lipinski, William E. Russell
Abstract: Cured blends of acrylonitrile/butadiene (NBR)/epichlorohydrin rubbers are provided that are free of poisonous lead compounds with ozone resistance of 10 hours or more and good heat resistance and fuel and oil resistance. These acrylonitrile/butadiene rubbers contain 28 to 33% by weight of acrylonitrile. The epichlorohydrin rubbers are useful in this invention which contains at least 4 to 12% of allyl glycidyl ether and may contain 0 to 35% of ethylene oxide, preferably 2 to 6% and up to 15%. The acrylonitrile/butadiene rubber is preferably of so-called bound antioxidant type which contains about 1 to about 10% by weight of polymerized attached antioxidant containing monomer.