Patents by Inventor Viacheslav Alexandrovich Petrov

Viacheslav Alexandrovich Petrov has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 8884084
    Abstract: A liquid phase process is disclosed for producing halogenated alkane adducts of the formula CAR1R2CBR3R4 (where A, B, R1, R2, R3, and R4 are as defined in the specification) which involves contacting a corresponding halogenated alkane, AB, with a corresponding olefin, CR1R2?CR3R4 in a dinitrile or cyclic carbonate ester solvent which divides the reaction mixture into two liquid phases and in the presence of a catalyst system containing (i) at least one catalyst selected from monovalent and divalent copper; and optionally (ii) a promoter selected from aromatic or aliphatic heterocyclic compounds which contain at least one carbon-nitrogen double bond in the heterocyclic ring. When hydrochlorofluorocarbons are formed, the chlorine content may be reduced by reacting the hydrochlorofluorocarbons with HF. Azeotropes of CClF2CH2CF3 with HF and azeotropes of CF3CH2CHF2 with HF are also disclosed; as are process for producing such azeotropes.
    Type: Grant
    Filed: April 1, 2011
    Date of Patent: November 11, 2014
    Assignee: E I du Pont de Nemours and Company
    Inventors: Ralph Thomas Baker, Ralph Newton Miller, Viacheslav Alexandrovich Petrov, Velliyur N. Mallikarjuna Rao, Allen Capron Sievert
  • Publication number: 20120119139
    Abstract: A liquid phase process is disclosed for producing halogenated alkane adducts of the formula CAR1R2CBR3R4 (where A, B, R1, R2, R3, and R4 are as defined in the specification) which involves contacting a corresponding halogenated alkane, AB, with a corresponding olefin, CR1R2?CR3R4 in a dinitrile or cyclic carbonate ester solvent which divides the reaction mixture into two liquid phases and in the presence of a catalyst system containing (i) at least one catalyst selected from monovalent and divalent copper; and optionally (ii) a promoter selected from aromatic or aliphatic heterocyclic compounds which contain at least one carbon-nitrogen double bond in the heterocyclic ring. When hydrochlorofluorocarbons are formed, the chlorine content may be reduced by reacting the hydrochlorofluorocarbons with HF. Azeotropes of CClF2CH2CF3 with HF and azeotropes of CF3CH2CHF2 with HF are also disclosed; as are process for producing such azeotropes.
    Type: Application
    Filed: April 1, 2011
    Publication date: May 17, 2012
    Applicant: E. I. du Pont de Nemours and Company
    Inventors: Ralph Thomas Baker, Ralph Newton Miller, Viacheslav Alexandrovich Petrov, Velliyur Nott Mallikarjuna Rao, Allen Capron Sievert
  • Patent number: 7408011
    Abstract: The invention provides a polymer having (a) at least one repeat unit derived from an ethylenically unsaturated compound having at least one fluorine atom covalently attached to an ethylenically unsaturated carbon atom; and (b) at least one repeat unit derived from an ethylenically unsaturated cyclic compound of structure: (I) wherein n is 0, 1, or 2; and R2 to R4 are independently H; C1-C10 alkyl or alkoxy, optionally substituted by halogen or ether oxygens; or C6-C20 aryl. These polymers can be used in making photoresist compositions and coated substrates.
    Type: Grant
    Filed: August 8, 2003
    Date of Patent: August 5, 2008
    Assignee: E.I. du Pont de Nemours and Company
    Inventors: Andrew E. Feiring, Viacheslav Alexandrovich Petrov, Bruce Edmund Smart
  • Publication number: 20080108852
    Abstract: A liquid phase process is disclosed for producing halogenated alkane adducts of the formula CAR1R2CBR3R4 (where A, B, R1, R2, R3, and R4 are as defined in the specification) which involves contacting a corresponding halogenated alkane, AB, with a corresponding olefin, CR1R2?CR3R4 in a dinitrile or cyclic carbonate ester solvent which divides the reaction mixture into two liquid phases and in the presence of a catalyst system containing (i) at least one catalyst selected from monovalent and divalent copper; and optionally (ii) a promoter selected from aromatic or aliphatic heterocyclic compounds which contain at least one carbon-nitrogen double bond in the heterocyclic ring. When hydrochlorofluorocarbons are formed, the chlorine content may be reduced by reacting the hydrochlorofluorocarbons with HF. New compounds disclosed include CF3CF2CCl2CH2CCl3, CF3CCl2CH2CH2Cl and CF3CCl2CH2CHClF. These compounds are useful as intermediates for producing hydrofluorocarbons.
    Type: Application
    Filed: May 31, 2007
    Publication date: May 8, 2008
    Inventors: Ralph Thomas Baker, Ralph Newton Miller, Viacheslav Alexandrovich Petrov, Velliyur Nott Mallikarjuna Rao, Allen Capron Sievert
  • Patent number: 7326796
    Abstract: The present invention provides novel fluorine-containing copolymers which comprise at least one fluorinated olefin, at least one polycyclic ethylenically unsaturated monomer with a fused 4-membered heterocyclic ring and, optionally, other components. The copolymers are useful for photoimaging compositions and, in particular, photoresist compositions (positive-working and/or negative-working) for imaging in the production of semiconductor devices. The copolymers are especially useful in photoresist compositions having high UV transparency (particularly at short wavelengths, e.g., 157 nm) which are useful as base resins in resists and potentially in many other applications.
    Type: Grant
    Filed: August 8, 2003
    Date of Patent: February 5, 2008
    Assignee: E.I. du Pont de Nemours and Company
    Inventors: Andrew E. Feiring, Frank L. Schadt, III, Viacheslav Alexandrovich Petrov, Bruce Edmund Smart, William Brown Farnham
  • Patent number: 7264914
    Abstract: This invention provides novel fluorine containing polymers which comprise at least one fluorinated olefin, at least one polycyclic ethylenically unsaturated monomer with a fused 4-membered carbocyclic ring and, optionally, other components. The polymers are useful for photoimaging compositions and, in particular, photoresist compositions (positive-working and/or negative-working) for imaging in the production of semiconductor devices. The polymers are especially useful in photoresist compositions having high UV transparency (particularly at short wavelengths, e.g., 157 nm) which are useful as base resins in resists and potentially in many other applications.
    Type: Grant
    Filed: August 8, 2003
    Date of Patent: September 4, 2007
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Andrew E. Feiring, Frank L Schadt, III, Viacheslav Alexandrovich Petrov, Bruce Edmund Smart, William Brown Farnham
  • Patent number: 7166416
    Abstract: The invention relates to a photoresist composition having a protecting group and a protected material incorporated in a cyclic chemical structure. In this invention a protected material has a cyclic ether group or cyclic ester group as a protecting group. A specific example of a cyclic ether group is an alkylene oxide, such as an oxetane group, substituted with one or more fluorinated alkyl groups. A specific example of a cyclic ester is a lactone which may be substituted with methyl groups. The photoresist composition further includes a photoactive component. The photoresist composition of this invention has a high transparency to ultraviolet radiation, particularly at short wavelengths such as 193 nm and 157 nm.
    Type: Grant
    Filed: April 25, 2005
    Date of Patent: January 23, 2007
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Andrew E. Feiring, Viacheslav Alexandrovich Petrov, Frank L. Schadt, III
  • Patent number: 7108953
    Abstract: The invention relates to a photoresist composition comprising a polymeric binder; a photoactive component; and at least one dissolution inhibitor comprising a paraffinic or cycloparaffinic compound containing at least one functional group having the structure —C(Rf)(Rf?)OR wherein Rf and Rf? are the same or different fluoroalkyl groups of from one or taken together are (CF2)a wherein a is an integer ranging from 2 to about 10 and R is a hydrogen atom or an acid labile protecting group. Typically, the dissolution inhibitor has an absorption coefficient of less than about 4.0 ?m at a wavelength of 157 nm.
    Type: Grant
    Filed: October 12, 2001
    Date of Patent: September 19, 2006
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Larry L. Berger, Jerald Feldman, Viacheslav Alexandrovich Petrov, Frank L. Schadt, III, Andrew E. Feiring, Fredrick Claus Zumsteg, Jr.
  • Patent number: 6899995
    Abstract: The invention relates to a photoresist composition having a protecting group and a protected material incorporated in a cyclic chemical structure. In this invention a protected material has a cyclic ether group or cyclic ester group as a protecting group. A specific example of a cyclic ether group is an alkylene oxide, such as an oxetane group, substituted with one or more fluorinated alkyl groups. A specific example of a cyclic ester is a lactone which may be substituted with methyl groups. The photoresist composition further includes a photoactive component. The photoresist composition of this invention has a high transparency to ultraviolet radiation, particularly at short wavelengths such as (193) nm and (157) nm.
    Type: Grant
    Filed: November 26, 2001
    Date of Patent: May 31, 2005
    Assignee: E.I. du Pont de Nemours and Company
    Inventors: Andrew E. Feiring, Viacheslav Alexandrovich Petrov, Frank L. Schadt, III
  • Patent number: 6875523
    Abstract: The present invention is generally directed to luminescent lanthanide compounds with phosphine oxide, phosphine oxide-sulfide, pyridine N-oxide, and phosphine oxide-pyridine N-oxide ligands. It also relates to electronic devices in which the active layer includes a lanthanide complex.
    Type: Grant
    Filed: June 27, 2002
    Date of Patent: April 5, 2005
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Vladimir Grushin, Norman Herron, Viacheslav Alexandrovich Petrov, Nora Sabina Radu, Ying Wang
  • Patent number: 6875555
    Abstract: There is disclosed a composition comprising a mixture of endo- and exo-2-(bicyclo[2.2.1]hept-5-en-2-yl)-2,2-fluoroalkyl-ethan-2-ol which is rich in the exo isomer, preferably the endo/exo concentration ratio is no greater than 5/95. The composition is useful for forming a repeat unit of a polymer which polymer may further comprise additional repeat units derived-from tert-butyl acrylate, hydroxyadamantyl acrylate, protected or unprotected fluorinated-olefins, 2-methyl-2-adamantyl acrylate, 2-propenoic acid, 2-hydroxy-1,1,2-trimethylpropyl ester. Polymers of this invention are useful as the binder component of a photoresist composition for microlithography.
    Type: Grant
    Filed: September 16, 2003
    Date of Patent: April 5, 2005
    Assignee: E.I. du Pont de Nemours and Company
    Inventors: Andrew Edward Feiring, Viacheslav Alexandrovich Petrov, Frank Leonard Schadt, III
  • Patent number: 6858762
    Abstract: A liquid phase process is disclosed for producing halogenated alkane adducts of the formula CAR1R2CBR3R4 (where A, B, R1, R2, R3, and R4 are as defined in the specification) which involves contacting a corresponding halogenated alkane, AB, with a corresponding olefin, CR1R2?CR3R4 in a dinitrile or cyclic carbonate ester solvent which divides the reaction mixture into two liquid phases and in the presence of a catalyst system containing (i) at least one catalyst selected from monovalent and divalent copper; and optionally (ii) a promoter selected from aromatic or aliphatic heterocyclic compounds which contain at least one carbon-nitrogen double bond in the heterocyclic ring. When hydrochlorofluorocarbons are formed, the chlorine content may be reduced by reacting the hydrochlorofluorocarbons with HF. New compounds disclosed include CF3CF2CCl2CH2CCl3, CF3CCl2CH2CH2Cl and CF3CCl2CH2CHClF. These compounds are useful as intermediates for producing hydrofluorocarbons.
    Type: Grant
    Filed: June 12, 2003
    Date of Patent: February 22, 2005
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Ralph Thomas Baker, Ralph Newton Miller, Viacheslav Alexandrovich Petrov, Velliyur Nott Mallikarjuna Rao, Allen Capron Sievert
  • Patent number: 6755942
    Abstract: The invention relates to azeotropic compositions of halogenated propanes with HF.
    Type: Grant
    Filed: August 14, 2000
    Date of Patent: June 29, 2004
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Ralph Thomas Baker, Ralph Newton Miller, Viacheslav Alexandrovich Petrov, Velliyur Nott Mallikarjuna Rao, Allen Capron Sievert
  • Publication number: 20040106062
    Abstract: A photoresist composition having a polymeric binder; and a photoactive component selected from the group consisting of (1) hydroxamic acid sulfonoxy esters containing a perfluoroalkyl group containing at least five carbon atoms; (2) S-perfluoroalkyldibenzothiophenium salts, and (3) S-perfluoroalkyldiarylsulfonium salts. These photoactive components are compatible with the polymeric binders that are useful for imaging with exposure to light at the relatively shorter wavelengths, such as 157 nm.
    Type: Application
    Filed: April 9, 2003
    Publication date: June 3, 2004
    Inventors: Viacheslav Alexandrovich Petrov, Frank L Schadt
  • Patent number: 6703533
    Abstract: A process is disclosed for producing (CF3)2C═CH2, CF3CH═CF2, CF2═C(CF3)OCF2CHF2 and C6H5C(CF3)═CF2. The process involves contacting the corresponding fluorocarbon starting material selected from (CF3)2CFCH2F, (CF3)2CHF, (CF3)2CFOCF2CHF2 and C6H5CF(CF3)2, in the vapor phase, with a defluorination reagent selected from carbon, copper, iron nickel and zinc at an elevated temperature of at least 300 ° C.
    Type: Grant
    Filed: November 21, 2001
    Date of Patent: March 9, 2004
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Gennadii Gerskovich Belen'Kii, Viacheslav Alexandrovich Petrov, Sergei Arnol'Dovich Postovoi, Paul Raphael Resnick, Yurii Vilovich Zeifman
  • Publication number: 20040023157
    Abstract: The invention relates to a photoresist composition having a protecting group and a protected material incorporated in a cyclic chemical structure. In this invention a protected material has a cyclic ether group or cyclic ester group as a protecting group. A specific example of a cyclic ether group is an alkylene oxide, such as an oxetane group, substituted with one or more fluorinated alkyl groups. A specific example of a cyclic ester is a lactone which may be substituted with methyl groups. The photoresist composition further includes a photoactive component. The photoresist composition of this invention has a high transparency to ultraviolet radiation, particularly at short wavelengths such as (193) nm and (157) nm.
    Type: Application
    Filed: April 8, 2003
    Publication date: February 5, 2004
    Inventors: Adrew E Feiring, Viacheslav Alexandrovich Petrov, Frank L Schadt
  • Patent number: 6664400
    Abstract: The present invention relates to a compound of Formula 3 wherein X is H, F or Cl; Y is F or Cl; R1 is C1-C3 haloalkyl, C2-C4 alkoxyalkyl; C2-C6 haloalkoxyalkyl or C2-C6 cyanoalkyl; R2 is H, C1-C4 alkyl, C1-C4 haloalkyl, C3-C4 alkenyl, C3-C4 alkynyl, C2-C4 alkoxyalkyl, C2-C4 alkylcarbonyl or C2-C4 alkoxycarbonyl; R3 is H or OH; and R4 is H, F or Cl; provided that when R3 is H then R4 is F or Cl and when R3 is OH then R4 is H.
    Type: Grant
    Filed: January 4, 2002
    Date of Patent: December 16, 2003
    Assignee: Degussa AG
    Inventors: Eric Deguyon Taylor, Viacheslav Alexandrovich Petrov, Matthias Schaeffer, Karlheinz Drauz, Anne Vogt, Christoph Weckbecker, Steven H. Swearingen, Balreddy Kamireddy
  • Patent number: 6653419
    Abstract: A method for producing partially fluorinated epoxides and corresponding polyether homopolymers of these polyfluorinated epoxides is described. Also described is a method for incorporating a fluoroalcohol functional group into a polymer as a pendant group. Certain perfluorinated olefins are also described. These polyfluorinated epoxides and the associated polymers and methods relating to them are useful components in photoresists, particulary in lithographic photoresists for use at low ultraviolet wavelengths (e.g., 157 nm).
    Type: Grant
    Filed: October 3, 2001
    Date of Patent: November 25, 2003
    Assignee: E. .I du Pont de Nemours and Company
    Inventors: Viacheslav Alexandrovich Petrov, Andrew Edward Fiering, Jerald Feldman
  • Publication number: 20030208090
    Abstract: A liquid phase process is disclosed for producing halogenated alkane adducts of the formula CAR1R2CBR3R4 (where A, B, R1, R2, R3, and R4 are as defined in the specification) which involves contacting a corresponding halogenated alkane, AB, with a corresponding olefin, CR1R2═CR3R4 in a dinitrile or cyclic carbonate ester solvent which divides the reaction mixture into two liquid phases and in the presence of a catalyst system containing (i) at least one catalyst selected from monovalent and divalent copper; and optionally (ii) a promoter selected from aromatic or aliphatic heterocyclic compounds which contain at least one carbon-nitrogen double bond in the heterocyclic ring. When hydrochlorofluorocarbons are formed, the chlorine content may be reduced by reacting the hydrochlorofluorocarbons with HF.
    Type: Application
    Filed: June 12, 2003
    Publication date: November 6, 2003
    Inventors: Ralph Thomas Baker, Ralph Newton Miller, Viacheslav Alexandrovich Petrov, Velliyur Nott Mallikarjuna Rao, Allen Capron Sievert
  • Publication number: 20030144487
    Abstract: The present invention is generally directed to luminescent lanthanide compounds with phosphine oxide, phosphine oxide-sulfide, pyridine N-oxide, and phosphine oxide-pyridine N-oxide ligands. It also relates to electronic devices in which the active layer includes a lanthanide complex.
    Type: Application
    Filed: June 27, 2002
    Publication date: July 31, 2003
    Inventors: Vladimir Grushin, Norman Herron, Viacheslav Alexandrovich Petrov, Nora Sabina Radu, Ying Wang