Abstract: A coating compound comprising a binder/crosslinking agent system that comprises 20 wt. % to 80 wt. % of one or more carboxyl-functional components A) and 80 wt. % to 20 wt. % of one or more epoxy-functional (meth)acrylic copolymers B).
Type:
Grant
Filed:
March 28, 2002
Date of Patent:
June 1, 2004
Assignee:
E. I. du Pont de Nemours and Company
Inventors:
Carmen Flosbach, Friedrich Herrmann, Claudia Drewin, Walter Schubert, Astrid Tueckmantel
Abstract: The present invention relates to an electrical power transmission system using superconductors which is compatible with conventional transmission systems. In a first aspect, a method for installing in an electrical power transmission system a connection using a coaxial superconducting cable, includes determining a reactance of a conventional cable suitable for the connection; installing the coaxial superconducting cable, and increasing a reactance of the coaxial superconducting cable, in such a way that the reactance of the superconducting cable is substantially equal to the reactance of the conventional cable. In particular, increasing the reactance of the coaxial superconducting cable includes connecting in series with the coaxial superconducting cable an inductive element, preferably made from a superconducting material.
Abstract: The present invention describes a new process for obtainment of the cetamine enantiomers, from the racemic cetamine resolution with the aid of an agent of chiral resolution, which provides the selective crystallization of its enantiomers. The resolution agent is employed in special concentration conditions, which provides stability, reproducibility and high enantiomeric purity to the precipitated diasteromer salt, making feasible the industrial production of the S-cetamine and its pharmaceutically acceptable salts.
Type:
Grant
Filed:
December 10, 2002
Date of Patent:
June 1, 2004
Assignee:
Cristália Produtos Químicos e Farmacêuticos
Ltda.
Inventors:
Valter Freire Torres Russo, Elisa Mannochio de Souza Russo
Abstract: The invention relates to a process for repairing coated substrate surfaces comprising the following successive steps:
a) optionally preparing a blemished area to be repaired,
b) providing a backing film coated on one side with an uncured or at least partially cured coating layer of a coating composition curable by means of high energy radiation,
c) applying the backing film with its coated side onto the blemished area to be repaired,
d) irradiating the coating applied in this manner onto the blemished area to be repaired with high energy radiation and
e) removing the backing film, wherein
the coating is irradiated through the backing film and/or after removing the backing film.
Type:
Grant
Filed:
August 3, 2001
Date of Patent:
June 1, 2004
Assignee:
E. I. du Pont de Nemours and Company
Inventors:
Carmen Flosbach, Karl-Friedrich Doessel, Werner Lenhard, Oliver Reis, Thomas Fey
Abstract: A system and method are disclosed for ink jet printing of wide format substrates such as textiles in a manner to simulate screen printing, in which image data in one or more acceptable formats is input, transformed into a suitable L*a*b* file format, further converted into a driver format for a printer, then communicated to such printer. Optionally, the color gamut of the image in the L*a*b* file format is checked against an estimated screen gamut of a screen printer, and limited to the estimated screen gamut as required.
Type:
Grant
Filed:
October 4, 2002
Date of Patent:
June 1, 2004
Assignee:
E. I. du Pont de Nemours and Company
Inventors:
Martin E. Redding, John Stephen Locke, Robert Clifton Strum, Tony Z. Liang, Michael Lee Rudolph, Waifong Liew Anton, Hisanori Omura
Abstract: Method and system for bundling a weather-related risk management product to the trading of commodities, such as agriculture, food, electricity, natural gas, oil and other products being traded through independent electronic commerce exchanges including business-to-consumer, business-to-business and traditional established commodity exchanges. A weather-related insurance product is created for a commodity which will specify the weather-related risk premium and compensation to be paid if certain defined events occur. The exchange offers the insurance product to its members, and for those that purchase the insurance product, a premium is added to the cost for each transaction in which the member is a party. By bundling a weather-related insurance product together with each trade or transaction, the weather-related risk premium is incorporated as an added transaction cost at the time the trade is confirmed.
Abstract: Alpha-olefins are manufactured in high yield and with very high selectivity by contacting ethylene with an iron complex of a selected 2,6-pyridinedicarboxaldehyde bisimine or a selected 2,6-diacylpyridine bisimine, and in some cases a selected activator compound such as an alkyl aluminum compound. Novel bisimines and their iron complexes are also disclosed. The &agr;-olefins are useful as monomers and chemical intermediates.
Type:
Grant
Filed:
September 5, 2002
Date of Patent:
May 25, 2004
Assignees:
E. I. du Pont de Nemours and Company, University of North Carolina
Inventors:
Maurice S. Brookhart, III, Brooke L. Small
Abstract: This invention relates to an isolated nucleic acid fragment encoding scorpion toxins that are K-channel modifiers. The invention also relates to the construction of a chimeric gene encoding all or a substantial portion of the K-channel modifier, in sense or antisense orientation, wherein expression of the chimeric gene results in production of altered levels of the K-channel modifier in a transformed host cell.
Abstract: Coating compounds curable by means of high-energy radiation, comprising as binder
A) at least one (meth)acrylic copolymer containing olefinic double bonds capable of free-radical polymerization and hydroxyl groups with a C═C equivalent weight from 100 to 10,000 and an OH-value from 20 to 250 mg KOH/g, which is prepared from monomers comprising:
A1) at least one olefinically unsaturated, epoxy-functional monomer capable of free-radical polymerization,
A2) at least one olefinically unsaturated, carboxy-functional monomer capable of free-radical polymerization and
A3) at least one further olefinically unsaturated monomer capable of free-radical polymerization which is different from A1) and A2), and
B) at least one component with free isocyanate groups and process for multilayer coating using the coating compounds.
Type:
Grant
Filed:
April 15, 2003
Date of Patent:
May 25, 2004
Assignee:
E. I. du Pont de Nemours and Company
Inventors:
Morenike Awokola, Carmen Flosbach, Helmut Loeffler, Volker Paschmann
Abstract: The present invention is directed to fast dry ambient temperature curable coating compositions especially suited for use in automotive refinish applications. A binder component of the two pack coating composition includes an epoxy resin having at least one acetoacetate functionality and at least one epoxy group, and one or more reactive components provided with at least two acetoacetate functionalities. Some of the suitable reactive components include structured reactive diluent, an acrylic polymer, a polyester, or a combination thereof. A crosslinking component of the coating composition includes polyamine, a blocked polyamine or a mixture thereof. The present invention is further directed to a method of producing a coating on a substrate from the coating composition.
Type:
Grant
Filed:
January 25, 2002
Date of Patent:
May 25, 2004
Assignees:
E. I. du Pont de Nemours and Company, Renner Dupont Tintas Automotives E Industrials S.A.
Inventors:
Uday Kumar, Patrick H. Corcoran, Cesar A. Rodrigues
Abstract: A process for the hot moulding of articles (L) made of thermoplastic material includes the steps of: heating at least one plate of thermoplastic material (L) to a plasticizing temperature; compressing the heated plate (L) between two moulding surfaces (14, 16), set opposite one another, of a pair of half-moulds (10, 12); and forming, by injection moulding, at least one component (22) anchored to a surface of the plate (L), while the plate is being compressed between the moulding surfaces (14, 16).
Abstract: A process of making a pigmented shaped article comprising: (a) providing polytrimethylene terephthalate chips and two or more colored pigmented chips each containing at least one different color pigment; (b) heating the polytrimethylene terephthalate chips and colored pigmented chips to a temperature of about 200-about 280° C. to melt the chips and form a polymer composition comprising the polytrimethylene terephthalate and at least one color pigment; and (c) forming a shaped article from the polymer composition.
Type:
Grant
Filed:
June 29, 2001
Date of Patent:
May 25, 2004
Assignee:
E. I. du Pont de Nemours and Company
Inventors:
Nirmal K. Agarwal, Jing C. Chang, Richard Lee Dommel, Joseph V. Kurian, Raymond Longhi
Abstract: An apparatus and method are disclosed for efficiently applying a test substance to a test unit by atomizing a solution or suspension of the test substance and electrostatically attracting the atomized droplets to the test unit. This apparatus and method can be used to apply small quantities of test substances to organisms such as plants or insects to assay their utility as crop protection agents.
Type:
Grant
Filed:
October 10, 2000
Date of Patent:
May 25, 2004
Assignee:
E. I. du Pont de Nemours and Company
Inventors:
James Scott Davis, Constance Meta Smith
Abstract: The invention concerns nanoporous carbon membranes which have been synthesized by pyrolysis of selected polymers on porous substrates to produce thin mixed matrix carbon film with pores for separation of small molecules.
Type:
Grant
Filed:
November 1, 2002
Date of Patent:
May 25, 2004
Assignee:
E. I. du Pont de Nemours and Company
Inventors:
David Richard Corbin, Henry Charles Foley, Mark Brandon Shiflett
Abstract: This invention provides a transparent, paramagnetic polymer composition in which a polymer is complexed with sufficient rare earth ions, particularly ions selected from ions in the group of elements 64-69, to provide a polymer with a magnetic mass susceptibility greater than 20×10−6 emu/g measured at 298° K. This invention provides optically responsive devices that employ these transparent, paramagnetic polymers as an element that is responsive to a magnetic field and a means for providing magnetic field. This invention provides transparent labels or markings employing these transparent, paramagnetic polymers.
Abstract: The present invention relates to a system for the control and monitoring of functional devices for the disabled with energy from outside the body, comprising actuator element(s), data-processing element(s), and control element(s) connected to the actuator element(s) to the processing element(s). The system further comprises a sensor element which is connected to the control element(s) and can transmit one or more signals for the control and monitoring of functional devices for the disabled. The present invention also relates to the procedures necessary for the remote control and monitoring of the system.
Type:
Grant
Filed:
December 31, 2001
Date of Patent:
May 25, 2004
Assignee:
I.N.A.I.L. Centro per la Sperimentazione Ed Applicazione di
Protesi e Presidi Ortopedici per Gli Infortuni Sul Lavoro
Abstract: A cable comprising at least one conductor and at least one coating layer based on a composite material comprising:
at least one polymer containing a predetermined quantity of polar groups; and
at least one inorganic material with lamellar structure surface-treated with a predetermined quantity of a compatibilizer;
in which said predetermined quantity of polar groups and said predetermined quantity of compatibilizer are selected in such a way that said inorganic material exhibits, in the composite material, a d-spacing value in X-ray diffraction analysis at least 20% higher with respect to the d-spacing value of the inorganic material as such.
Abstract: This invention relates to a process for the synthesis of addition polymers containing branches upon branches and having a polymerizable olefin end group by a convenient one-pot polymerization of selected vinyl monomers with chain polymerization initiators and a method to provide olefinic end groups by chain termination agents; and polymers produced thereby characterized by branch-on-branch structure and lower inherent viscosity than heretofore possible.
Abstract: A soil resist agent comprising a dispersion of a polyfluoro organic compound having a least one of a urea, urethane or ester linkage, and at least one anionic surfactant wherein the ratio of polyfluoro organic compound to surfactant is from about 0.075:1.0 to about 5:1 for treatment of fibrous substrates is disclosed.
Type:
Grant
Filed:
July 29, 2002
Date of Patent:
May 25, 2004
Assignee:
E. I. du Pont de Nemours and Company
Inventors:
Joyce Monson Materniak, Peter Michael Murphy