Abstract: Multifunctional chelating groups are covalently bound to acrylate or methylate monomers. These monomers are polymerized. The resulting polymers are highly substituted with chelating groups and are useful for removing metals from fluids such as liquid hydrocarbons. An example of a polymer according to this invention has the following structure: ##STR1## wherein Q is a saturated or unsaturated aliphatic group having 1 to about 200 carbon atoms and is typically an unsubstituted unbranched alkylene, a substituted unbranched alkylene, a substituted branched alkylene, or an unsubstituted branched alkylene, and is an integer having a value of at least 1.
Type:
Grant
Filed:
November 27, 1996
Date of Patent:
November 7, 2000
Assignee:
The United States of America as represented by the Secretary of the Navy
Abstract: Nanocrystalline phosphors are formed within a bicontinuous cubic phase. The phosphors are doped with an optimum concentration, of manganese, for example, corresponding to about one or less dopant ions per phosphor particle.
Type:
Grant
Filed:
November 18, 1997
Date of Patent:
July 18, 2000
Inventors:
Henry F. Gray, Jianping Yang, David S. Y. Hsu, Banhalli R. Ratna, Syed B. Qadri
Abstract: The radiation hardness of a microelectronic device is improved by implant dopant ions, such as Si, into an oxide layer. This implantation creates electron traps/recombination centers in the oxide layer. A subsequent anneal remove defects in the active silicon layer.
Type:
Grant
Filed:
August 13, 1998
Date of Patent:
June 6, 2000
Assignee:
The United States of America as represented by the Secretary of the Navy
Abstract: A core/clad glass optical fiber is made by melting a core glass rod and a adding glass rod in separate crucibles which are not concentric with respect to each other and the respective core and cladding glass melts passed out of contact with each other to a glass melt contacting zone proximate a fiber drawing orifice in which the cladding glass surrounds the core glass and a core/clad glass fiber is drawn. This process enables the clad glass fiber to be drawn directly from core and cladding glass rods without the need for a preform or forming a melt from glass chards or chunks, thereby reducing the cost of producing the fiber and also producing a glass clad optical fiber of high purity and excellent concentricity. Chalcogenide glass fibers having a concentricity of 100% have been made.
Type:
Grant
Filed:
February 24, 1999
Date of Patent:
February 8, 2000
Assignee:
The United States of America as Represented by the Secretary of the Navy
Inventors:
Jasbinder S. Sanghera, Pablo Pureza, Ishwar D. Aggarwal, Reza Mossadegh
Abstract: Lipid microtubules having a controlled bilayer structure and high aspect io are formed in a methanol/ethanol/water solvent system. The lipid microtubules may then be catalyzed (e.g., with a palladium/tin catalyst) in an acidified catalytic bath having no more than about 30 g of catalytic salts. These catalyzed microtubules are then metallized using a diluted plating bath with replenishment of the plating bath as needed to obtain the desired metallization thickness.
Type:
Grant
Filed:
May 18, 1998
Date of Patent:
January 11, 2000
Assignee:
The United States of America as represented by the Secretary of the Navy
Inventors:
Ronald R. Price, Joel M. Schnur, Paul E. Schoen, Dan Zabetakis, Mark Spector
Abstract: A process for thermal transfer printing on plastic films incorporating a coating composition is provided. The process includes providing plastic film having a coating composition including a binder of a polymer and/or copoylmer of carboxylic acid containing vinylic unsaturation, at least one finely divided particulate filler, and a surface active agent. A thermographic element such as a ribbon which includes a dye layer is then heated in the form of an image to be printed onto the plastic film, with the heating causing the dye layer to melt in the form of the image. The plastic film coated with the coating composition is contacted with the thermographic ribbon, and the dye layer is transferred from the ribbon to the plastic film. Such thermal transfer printing on coated plastic films provides for a multitude of uses such as plastic labels for outdoor use.
Abstract: The present invention is a multi-layer film which has an improved composite structure for providing hermetic seals to packages manufactured in high speed packaging apparatus. The structure of the multi-layer film of the present invention includes a main substrate and a sealant layer. The sealant layer, in turn, includes two components, an intermediate layer which has the primary function of compliance during sealing, and a sealing layer which has the primary function of providing adhesivity to the completed seal. As a result of this invention, high strength hermetic seals can be provided to multi-layer films effectively and efficiently, and hermetic seals are provided with the ability to be peeled open without destruction of several layers of the film.
Type:
Grant
Filed:
September 12, 1996
Date of Patent:
March 30, 1999
Assignee:
Mobil Oil Corporation
Inventors:
Kevin M. Donovan, Dan-Cheng Kong, Leland Liu, Donald F. Sexton, Tien-Kuei Su