Patents Assigned to Zeneca Inc.
  • Patent number: 6083738
    Abstract: The present invention provides a process of decontaminating, by composting under specific conditions, soil and/or sediments containing toxic contaminants of PCB. The process is carried out by converting the contaminants into harmless materials. The process includes the step of affecting a solid compost mixture during composting with a redox potential below negative 200 mV (millivolts). Further, the process includes several steps which are repeated until complete degradation is achieved. Other processes for degrading compounds such as chlordane, dieldrin, toxaphene, aldrin, endrin, and heptachlorepoxide as well as polychlorinated benzenes are also disclosed.
    Type: Grant
    Filed: May 18, 1998
    Date of Patent: July 4, 2000
    Assignee: Zeneca, Inc.
    Inventors: Guy P. Moser, Neil C. C. Gray, David J. Gannon
  • Patent number: 6060292
    Abstract: The present invention provides a process of decontaminating soil and/or sendiment containing methoxychlor by converting this contaminant into harmless materials thereby decontaminating the soil to whatever extent desired, either partial decontamination or complete remediation. The process comprises treating soil and or sediment which contains populations of viable anaerobic and aerobic microbes capable of transforming methoxychlor into harmless materials and being viable under both anaerobic and aerobic conditions.
    Type: Grant
    Filed: March 11, 1999
    Date of Patent: May 9, 2000
    Assignee: Zeneca, Inc.
    Inventors: Neil C. C. Gray, Guy P. Moser, Lori E. Moser
  • Patent number: 5998199
    Abstract: The present invention provides a process of decontaminating, by composting under specific conditions, soil and/or sediments containing toxic contaminants of TNT, HMX and RDX. The process is carried out by converting the contaminants into harmless materials. The process includes the step of affecting a solid compost mixture during composting with a redox potential below negative 200 mV (millivolts). Further, the process includes several steps which are repeated until complete degradation is achieved. Other processes for degrading compounds such as chlordane, dieldrin, toxaphene, aldrin, endrin, and heptachlorepoxide as well as polychlorinated benzenes are also disclosed.
    Type: Grant
    Filed: May 18, 1998
    Date of Patent: December 7, 1999
    Assignee: Zeneca Inc
    Inventors: Guy P. Moser, Neil C. C. Gray
  • Patent number: 5912004
    Abstract: A fungicidal composition in the form of an aqueous emulsion is formed from 3-iodo-2-propynyl-N-butylcarbamate (IPBC), 2-(thiocyanomethylthio)benzothiazole (TCMTB), polyoxyethylene triglyceride, polyalkylene glycol ether, xanthan gum and dipropylene glycol. The composition is formed by adding a molten blend of polyoxyethylene triglyceride to a blend of IPBC and TCMTB, and then adding thereto a solution of xanthan gum in dipropylene glycol and water. The composition is particularly suited for the preservation of wet blue hides as obtained in the leather industry, and may also be used in the preservation of organic coatings delivered from aqueous media.
    Type: Grant
    Filed: November 14, 1997
    Date of Patent: June 15, 1999
    Assignee: Zeneca, Inc.
    Inventors: Anaide Bonjour, Gerardo D. Blanco, Carlos H. Canoura, Stuart D. Graham, Roger E. Smith
  • Patent number: 5907068
    Abstract: The invention concerns pharmaceutically useful trifluoromethyl ketone substituted di-, tri- and tetra-peptide derivatives of the formulae Ia, Ib, Ic set out hereinafter, and salts thereof which are inhibitors of human leukocyte elastase. Also described herein are pharmaceutical compositions containing a peptide derivative and processes and intermediates for use in the manufacture of the peptide derivatives.
    Type: Grant
    Filed: September 4, 1992
    Date of Patent: May 25, 1999
    Assignee: Zeneca Inc.
    Inventors: Mark Morris Stein, Diane Amy Trainor
  • Patent number: 5726158
    Abstract: The invention concerns pharmaceutically useful trifluoromethyl ketone substituted di-, tri- and tetra-peptide derivatives of the formulae Ia, Ib, Ic set out hereinafter, and salts thereof, which are inhibitors of human leukocyte elastase. Also described herein are pharmaceutical compositions containing a peptide derivative and processes and intermediates for use in the manufacture of the peptide derivatives.
    Type: Grant
    Filed: June 6, 1995
    Date of Patent: March 10, 1998
    Assignee: Zeneca Inc.
    Inventors: Philip Duke Edwards, John Anthony Schwartz, Mark Morris Stein, Diane Amy Trainor, Richard Alan Wildonger
  • Patent number: 5723442
    Abstract: The present invention relates to certain peptide derivatives, as described herein, which are human leukocyte elastase (HLE) inhibitors making them useful whenever such inhibition is desired, such as for research tools in pharmacological, diagnostic and related studies and in the treatment of diseases in mammals in which HLE is implicated, including treatment of tissue degenerative diseases such as pulmonary emphysema. The invention also includes intermediates useful in the synthesis of these peptide derivatives, processes for preparing them, pharmaceutical compositions containing such peptide derivatives and methods for their use.
    Type: Grant
    Filed: April 7, 1993
    Date of Patent: March 3, 1998
    Assignee: Zeneca Inc.
    Inventor: Donald John Wolanin
  • Patent number: 5668084
    Abstract: A water treatment method for controlling the growth of algae, fungi and bacteria and the formation of a waterline residue in recreational and industrial water supplies containing turbulent water utilizes a composition containing a polyhexamethylene biguanide compound and a surfactant. The water treatment method and composition containing the biguanide compound and surfactant are particularly useful for treating recreational water supplies like spas and swimming pools containing turbulent water, such as aerated water.
    Type: Grant
    Filed: August 1, 1995
    Date of Patent: September 16, 1997
    Assignee: Zeneca Inc.
    Inventors: Michael J. Unhoch, George D. Stratton
  • Patent number: 5583152
    Abstract: The invention concerns novel, pharmaceutically useful, amide derivatives of certain benzoheterocyclylalkanoic acids (and related tetrazoles and acylsulphonamides) of the formula I and salts thereof, wherein the radicals R.sup.1, R.sup.2, L, X, Y, Z, A.sup.1, Q, A.sup.2 and M have the meanings set out in the specification. The invention also includes pharmaceutical compositions incorporating a formula I compound or a salt thereof, a process for the manufacture of the said compound, together with intermediates for use in the latter process.
    Type: Grant
    Filed: June 5, 1995
    Date of Patent: December 10, 1996
    Assignee: Zeneca Inc.
    Inventors: Peter R. Bernstein, Frederick J. Brown, Victor G. Matassa, Ying K. Yee
  • Patent number: 5562914
    Abstract: A composition of matter having a clay porous granule and a polyurethane matrix formed from the polymerization of a polyol and a polyisocyanate and held within the pores of the granule and having uniformly distributed throughout the polyurethane matrix a liquid material, for example, a pesticide and a method for loading a porous granule with the polyurethane and the liquid material by:(a) spraying a porous granule with a liquid composition comprising a polyol, a polyisocyanate and a liquid material to be retained in the porous granule, and(b) polymerizing the polyol and the polyisocyanate to form a polyurethane matrix polymer which has the liquid materials uniformly distributed throughout the polyurethane matrix.
    Type: Grant
    Filed: December 6, 1990
    Date of Patent: October 8, 1996
    Assignee: Zeneca Inc.
    Inventors: Herbert B. Scher, Marius Rodson
  • Patent number: 5449658
    Abstract: The growth of algae, fungi and pathogenic organisms in commercial and recreational waters, such as cooling towers, swimming pools and spas, may be controlled by adding to the water a primary sanitizing agent, preferably poly(hexamethylene biguanide) ("PHMB"), and a potentiating adjuvant comprising a calcium ion-chelating agent, preferably ethylenediamine tetraacetic acid ("EDTA"), in amounts such that the adjuvant renders the composition algicidal and fungicidal in water. The water may be further treated with a peroxy salt as a backup agent, preferably sodium perborate, or the calcium ion-chelating agent and peroxy salt may be combined as a shock treatment to water being treated with the primary sanitizing agent.
    Type: Grant
    Filed: December 7, 1993
    Date of Patent: September 12, 1995
    Assignee: Zeneca, Inc.
    Inventors: Michael J. Unhoch, Peter S. K. Lee, David G. Chasin
  • Patent number: 5440035
    Abstract: The invention concerns novel, pharmaceutically useful, amide derivatives of certain benzoheterocyclylalkanoic acids (and related tetrazoles and acylsulphonamides) of the formula I and salts thereof, wherein the radicals R.sup.1, R.sup.2, L, X, Y, Z, A.sup.1, Q, A.sup.2 and M have the meanings set out in the specification. The invention also includes pharmaceutical compositions incorporating a formula I compound or a salt thereof, a process for the manufacture of the said compound, together with intermediates for use in the latter process.
    Type: Grant
    Filed: October 25, 1994
    Date of Patent: August 8, 1995
    Assignee: Zeneca Inc.
    Inventors: Peter R. Bernstein, Frederick J. Brown, Victor G. Matassa, Ying K. Yee
  • Patent number: 5414132
    Abstract: The invention concerns pharmaceutically useful trifluoromethyl ketone substituted di-, tri- and tetra-peptide derivatives of the formulae Ia, Ib, Ic set out hereinafter, and salts thereof, which are inhibitors of human leukocyte elastase. Also described herein are pharmaceutical compositions containing a peptide derivative and processes and intermediates for use in the manufacture of the peptide derivatives.
    Type: Grant
    Filed: September 4, 1992
    Date of Patent: May 9, 1995
    Assignee: Zeneca Inc.
    Inventors: Mark M. Stein, Diane A. Trainor
  • Patent number: 5391758
    Abstract: The invention concerns novel, pharmaceutically useful, amide derivatives of certain benzoheterocyclylalkanoic acids (and related tetrazoles and acylsulphonamides) of the formula I and salts thereof, wherein the radicals R.sup.1, R.sup.2, L, X, Y, Z, A.sup.1, Q, A.sup.2 and M have the meanings set out in the specification. The invention also includes pharmaceutical compositions incorporating a formula I compound or a salt thereof, a process for the manufacture of the said compound, together with intermediates for use in the latter process.
    Type: Grant
    Filed: June 6, 1994
    Date of Patent: February 21, 1995
    Assignee: Zeneca, Inc.
    Inventors: Peter R. Bernstein, Frederick J. Brown, Victor G. Matassa, Ying K. Yee
  • Patent number: 5373016
    Abstract: Biocidal isothiazolinone or isothiazolothione compounds are stabilized with an effective amount of a free-radical scavenger compound. Exemplary of the biocidal isothiazolones are 1,2-benzisothiazolin-3-one, 2-methyl-4-5-trimethylene-4-isothiazolin-3-one, 5-chloro-2-methyl-4-isothiazolin-3-one and 2-methyl-4-isothiazolin-3-one. Effective free-radical scavengers include 3,3-thiodipropionic acid.
    Type: Grant
    Filed: May 28, 1993
    Date of Patent: December 13, 1994
    Assignee: Zeneca, Inc.
    Inventors: Scott A. Brown, Terry Young
  • Patent number: 5349168
    Abstract: Microwaveable packing compositions exhibiting improved temperature control are provided. These compositions comprise a dielectric substrate having at least a portion of at least one of its surfaces coated with a matrix composition containing susceptor particles as well as particles of a blocking agent selected from the group consisting of calcium salts, zinc salts, zinc oxide, lithopone, silica and titanium dioxide. Also disclosed is a microwaveable ink composition useful for the preparation of such packaging compositions as well as a process for manufacturing such packaging compositions.
    Type: Grant
    Filed: August 3, 1993
    Date of Patent: September 20, 1994
    Assignee: Zeneca Inc.
    Inventor: Allan S. Wilen
  • Patent number: 5338734
    Abstract: The invention concerns novel, pharmaceutically useful, amide derivatives of certain benzoheterocyclylalkanoic acids (and related tetrazoles and acylsulphonamides) of the formula I and salts thereof, wherein the radicals R.sup.1, R.sup.2, L, X, Y, Z, A.sup.1, Q, A.sup.2 and M have the meanings set out in the specification. The invention also includes pharmaceutical compositions incorporating a formula I compound or a salt thereof, a process for the manufacture of the said compound, together with intermediates for use in the latter process.
    Type: Grant
    Filed: November 25, 1992
    Date of Patent: August 16, 1994
    Assignee: Zeneca Inc.
    Inventors: Peter R. Bernstein, Frederick J. Brown, Victor G. Matassa, Ying K. Yee
  • Patent number: 5334762
    Abstract: A method for preparing oximes where an aldehyde or ketone is reacted with hydroxylamine or its salt in the presence of a catalytic amount of an organotin(IV) compound such as monoalkyltin(IV), dialkyltin(IV) and aryltin(IV). The organotin(IV) compound is represented by the formula I:(R.sup.1).sub.n SnX.sub.m-n (I)where R.sup.1 is independently selected from alkyl of 1 to 18 carbons or aryl, X is halogen, oxygen, hydroxyl, OR.sup.1, R.sup.2 CO.sub.2 --, R.sup.2 O.sub.2 C--(Z).sub.y --CO.sub.2 -- or R.sup.2 CO.sub.2 (CH.sub.2).sub.y S--, R.sup.2 is alkyl of 1 to 18 carbons or aryl, Z is selected from CH.sub.2 or CH.dbd.CH, where y is 0 to 6, n is 1 or 2 and m is 4 except that when X is oxygen, n is 2 and m is 3. Exemplary of the organotin(IV) compounds are butyltin tris(2-ethylhexanoate), dibutyltin diacetate and diphenyltin dichloride.
    Type: Grant
    Filed: February 4, 1993
    Date of Patent: August 2, 1994
    Assignee: Zeneca Inc.
    Inventors: James P. Neilan, Donald J. Gosciniak
  • Patent number: 5332584
    Abstract: A process is disclosed for the microencapsulation of a substantially water-insoluble liquid material within a porous shell to effect a slow rate of release of said material through said shell which comprises (a) providing an organic solution comprising said material and an etherified urea-formaldehyde prepolymer dissolved therein in which from about 50% to about 98% of the methylol groups of said prepolymer have been etherified with a C.sub.4 -C.sub.
    Type: Grant
    Filed: December 9, 1991
    Date of Patent: July 26, 1994
    Assignee: Zeneca Inc.
    Inventors: Herbert B. Scher, Marius Rodson