Patents Represented by Attorney, Agent or Law Firm Joseph M. Mazzarese
  • Patent number: 5643590
    Abstract: The present invention relates to novel dry-blended extrudable pesticidal resin composition, extruded pesticidal resin compositions and pelletized pesticidal resin compositions comprising, as the active ingredient, O,O-diethyl S-[[1,1-dimethylethyl)thio]methyl]phosphorodithioate, O,O-diethyl S-(ethylthiomethyl)phosphorodithioate or a pesticidal chemical wherein said technical grade of said pesticidal chemical has a dermal and/or oral LD50, as measured on rats or rabbits of less than 50 mg/kg. The novel compositions of the present invention are characterized by markedly reduced mammalian toxicity and increased pesticide stability and are essentially free of dust. Further, the present invention also relates to a process for preparing the present safened pesticidal resin compositions.
    Type: Grant
    Filed: June 5, 1995
    Date of Patent: July 1, 1997
    Assignee: American Cyanamid Company
    Inventor: Joseph Frederick Cannelongo
  • Patent number: 5633380
    Abstract: The invention is substituted quinoline intermediates useful in the synthesis of the herbicide 2-(4-isopropyl-4-methyl 5-oxo 2-imidazolidinyl)-5-methoxymethylnicotinic acid and a process for preparing the herbicide intermediate 3-methoxymethyl-7- or 8-hydroxyquinoline.
    Type: Grant
    Filed: June 5, 1995
    Date of Patent: May 27, 1997
    Assignee: American Cyanamid Company
    Inventor: Wen-Xue Wu
  • Patent number: 5625068
    Abstract: The invention is herbicide 3-substituted quinoline intermediates and a method for the synthesis of the herbicide intermediates 3-alkoxymethyl substituted quinolines.
    Type: Grant
    Filed: June 5, 1995
    Date of Patent: April 29, 1997
    Assignee: American Cyanamid Company
    Inventor: Henry L. Strong
  • Patent number: 5624884
    Abstract: The present invention relates to novel stable aqueous suspension concentrate or aqueous flowable compositions of the low-melting dinitroaniline pesticide, pendimethalin, in combination with secondary herbicide(s) melting at temperatures greater than 70.degree. C. or herbicides which are water soluble. Uniquely, pendimethalin may be present in the compositions of the invention in a ratio of orange crystal form to yellow crystal form of 4:96, up to totally orange crystal form. Additionally are provided methods for preparing the compositions containing pendimethalin alone or in combination with the secondary herbicides.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: April 29, 1997
    Assignee: American Cyanamid Company
    Inventors: Leonard J. Morgan, Mark Bell
  • Patent number: 5597924
    Abstract: The invention is a process for preparing substituted 8-hydroxyquinolines from substituted 8-chloroquinolines.
    Type: Grant
    Filed: May 24, 1995
    Date of Patent: January 28, 1997
    Assignee: American Cyanamid Company
    Inventors: Robert S. Marmor, Henry L. Strong
  • Patent number: 5593946
    Abstract: Disclosed herein is a compound of the general formula ##STR1## wherein A represents an optionally substituted alkyl, alkenyl, alkynyl, cycloalkyl, aryl, heteroaryl or aralkyl group, or a group of general formula X--Y--(CH.sub.2)n-- where X represents an optionally substituted alkyl or aryl group, n represents 1 or 2, and Y represents an oxygen atom or a group of general formula --S(O).sub.m -- where m represents 0, 1 or 2; R.sup.1 represents a hydrogen atom or an alkyl group; and R.sup.2 represents a hydrogen atom or an optionally substituted alkyl, alkenyl, alkynyl, cycloalkyl, aryl, heteroaryl, aralkyl or heteroaralkyl group and also preparative processes and intermediates.
    Type: Grant
    Filed: June 1, 1995
    Date of Patent: January 14, 1997
    Inventor: Wolfgang Buck
  • Patent number: 5593996
    Abstract: This invention relates to certain triazolopyrimidine derivatives of formula I ##STR1## wherein R.sub.1 represents an optionally substituted alkyl, alkenyl, alkynyl, alkadienyl, cycloalkyl, bicycloalkyl or heterocyclyl group; R.sub.2 represents a hydrogen atom or an alkyl group; or R.sub.1 and R.sub.2 together with the interjacent nitrogen atom represent an optionally substituted heterocyclic ring; R.sub.3 represents an optionally substituted aryl group; and R.sub.4 represents a hydrogen or halogen atom or a group --NR.sub.5 R.sub.6 where R.sub.5 represents a hydrogen atom or an amino, alkyl, cycloalkyl or bicycloalkyl group and R.sub.6 represents a hydrogen atom or an alkyl group; processes for their preparation; compositions containing such compounds and their use as fungicides.
    Type: Grant
    Filed: March 28, 1995
    Date of Patent: January 14, 1997
    Assignee: American Cyanamid Company
    Inventors: Klaus-Jurgen Pees, Guido Albert
  • Patent number: 5578550
    Abstract: The invention pertains to a compound of the general formula ##STR1## wherein A represents an optionally substituted alkyl, alkenyl, alkynyl, cycloalkyl, aryl, heteroaryl or aralkyl group, or a group of general formula X--Y--(CH.sub.2).sub.n -- where X represents an optionally substituted alkyl or aryl group, n represents 1 or 2, and Y represents an oxygen atom or a group of general formula --S(O).sub.m -- where m represents 0, 1 or 2; R.sup.1 represents a hydrogen atom or an alkyl group; and R.sup.2 represents a hydrogen atom or an optionally substituted alkyl, alkenyl, alkynyl, cycloalkyl, aryl, heteroaryl, aralkyl or heteroaralkyl group which are useful as herbicides.
    Type: Grant
    Filed: October 5, 1994
    Date of Patent: November 26, 1996
    Assignee: American Cyanamid Company
    Inventor: Wolfgang Buck
  • Patent number: 5545742
    Abstract: There is provided a 6-heterocyclyl-1-(substituted phenyl)benzotriazole compound having the structural formula I ##STR1## Further provided are a composition and a method comprising that compound for the control of undesirable plant species.
    Type: Grant
    Filed: May 5, 1995
    Date of Patent: August 13, 1996
    Assignee: American Cyanamid Co.
    Inventors: Michael E. Condon, Alvin D. Crews, Jr., Mark C. Manfredi
  • Patent number: 5523277
    Abstract: There is provided a 6-heterocyclyl-1-(substituted phenyl)benzotriazole compound having the structural formula I ##STR1## Further provided are a composition and a method comprising that compound for the control of undesirable plant species.
    Type: Grant
    Filed: February 10, 1995
    Date of Patent: June 4, 1996
    Assignee: American Cyanamid Company
    Inventors: Michael E. Condon, Alvin D. Crews, Jr., Mark C. Manfredi
  • Patent number: 5523278
    Abstract: There are provided substituted benzisoxazole and benzisothiazole compounds having the structural formula I ##STR1## Further provided are compositions and methods comprising those compounds for the control of undesirable plant species.
    Type: Grant
    Filed: September 12, 1995
    Date of Patent: June 4, 1996
    Assignee: American Cyanamid Company
    Inventor: Peter J. Wepplo
  • Patent number: 5453321
    Abstract: High to ultrahigh polyester compositions comprising monomer units derived from 2,6-naphthalenedicarboxylic acid, 4,4'-bibenzoic acid and ethylene glycol are useful as fibers and molding resins when the mole ratio of 4,4'-bibenzoic acid to 2,6-naphthalenedicarboxylic acid is from about 60:40 to about 40:60, and especially when the two diacids are included in about equimolar amounts. These compositions yield fiber with excellent tensile properties, both at room temperature and at elevated temperatures. When these compositions are melt spun at a relatively low melt temperature and high draw down ratio, fibers with excellent tensile properties are obtained without a subsequent drawing step.
    Type: Grant
    Filed: April 26, 1993
    Date of Patent: September 26, 1995
    Assignee: Hoechst Celanese Corp.
    Inventors: Eui W. Choe, John A. Flint
  • Patent number: 5413852
    Abstract: Asymmetric hollow fibers of SIXEF.TM.-Durene, a polyimide made from 2,2-bis[3,4-dicarboxyphenyl] hexafluoropropane dianhydride and 2,3,5,6-tetramethylphenylene diamine monomers, and a process for making such fibers. These uncoated fibers have a separation factor that exceeds 4 for oxygen and nitrogen and a permeance of at least about 50 ppm cc(STP)/(sec cm.sup.2 cm-Hg). A polymer dope comprising SIXEF.TM.-Durene in a solvent system containing N-methyl-2-pyrrolidone ("NMP") and an organic acid such as propionic acid ("PA") is prepared by polymerizing the polyimide monomers in NMP to form a polyamic acid polymer and imidizing this polymer using the acid anhydride. Water released from the polymer in the imidization reaction converts the anhydride to the organic acid. The dope is wet-spun into hollow fibers using a core solvent such as PA or glycerine; the fibers are coagulated in water.
    Type: Grant
    Filed: August 1, 1991
    Date of Patent: May 9, 1995
    Assignee: Hoechst Celanese Corp.
    Inventors: Tai-Shung Chung, Edward R. Kafchinski, Rohitkumar H. Vora
  • Patent number: 5358780
    Abstract: A breathable water-resistant fabric in which a surface of a fabric material is coated with a microporous layer of ETFE, and a process for making same. An ETFE dope containing a blend of ETFE and a binder polymer is cast or extruded into a film which is subsequently bonded or laminated to the fabric material. The binder is extracted to produce a microporous ETFE layer.
    Type: Grant
    Filed: April 1, 1992
    Date of Patent: October 25, 1994
    Assignee: Hoechst Celanese Corp.
    Inventors: Edward R. Kafchinski, Tai-Shung Chung, William Timmons, Jeanne Gasman
  • Patent number: 5348990
    Abstract: A low dielectric material made of a liquid crystal polymer, polytetrafluoroethylene, and hollow glass spheres. This material is a relatively low cost, low dielectric blend having good physical strength and chemical and temperature resistance.
    Type: Grant
    Filed: March 2, 1993
    Date of Patent: September 20, 1994
    Assignee: Hoechst Celanese Corp.
    Inventors: Lakshaman M. Walpita, James B. Stamatoff, George Lundberg
  • Patent number: 5328760
    Abstract: The process for forming a microporous polymeric semi-crystalline film, involving the steps of cold compressive extruding a precursor film, preferably in a biaxial fashion, so as to compress the film by a factor of about 2 to 1 to about 10 to 1, stretching the film by about 100 to about 500 percent, preferably in a biaxial fashion, and heat annealing either before, during, or preferably after the stretching step at a temperature up to the alpha transition temperature of the polymer for a time sufficient to maintain the microporous character of the final film.
    Type: Grant
    Filed: December 2, 1992
    Date of Patent: July 12, 1994
    Assignee: Hoechst Celanese Corp.
    Inventor: Gunilla E. Gillberg-LaForce
  • Patent number: 5324430
    Abstract: A composite fiber or film for use in a fluid separation membrane made of PAN coated with an intermediate permeable material and further coated with a selective layer. The PAN fiber or film is pre-wet with perfluoroether prior to being coated with the intermediate material, to produce a membrane material having enhanced permeability. The selective layer produces a high separation factor.
    Type: Grant
    Filed: March 3, 1993
    Date of Patent: June 28, 1994
    Assignee: Hoechst Celanese Corp.
    Inventors: Tai-Shung Chung, E. Ronald Kafchinski, Mark Spak, Brenda Bembry-Ross, C. Glen Wensley
  • Patent number: 5320754
    Abstract: A novel method for making a composite separation membrane, and the product of that method. This novel method includes applying one or more perfluoroethers to the surface of a microporous fiber or film made of a polymer such as PAN, and subsequently coating that fiber or film surface with a layer of selective material. This method provides a more permeable composite membrane than would be obtained by coating a fiber or film that had not been pre-wetted with perfluoroether.
    Type: Grant
    Filed: December 18, 1992
    Date of Patent: June 14, 1994
    Assignee: Hoechst Celanese Corp.
    Inventors: Rachel S. Kohn, Edward R. Kafchinski, Tai-Shung Chung, Brenda A. Bembry-Ross
  • Patent number: 5308909
    Abstract: A moldable hollow glass filled PBI composition. The composition may be prepared by making a well-mixed slurry of glass microspheres in a solution of PBI in a suitable solvent, and then spinning the slurry through a jet or die under pressure and into a water bath where the particles coagulate. The solvent dissolves in the water, allowing solvent-free PBI-glass composite particles to be isolated.
    Type: Grant
    Filed: February 19, 1993
    Date of Patent: May 3, 1994
    Assignee: Hoechst Celanese Corp
    Inventors: Paul N. Chen, Sr., Victor C. Astone, William M. Cooper, O. Richard Hughes
  • Patent number: 5302418
    Abstract: A process for coating a polypropylene or polyethylene surface with a maleic acid-grafted polypropylene or polyethylene copolymer. In this process, a dope containing the graft copolymer is applied to the polypropylene or polyethylene surface, e.g. by dip coating, at a temperature high enough to keep the copolymer solvated in the dope solvent. The surface is then dried to leave a porous graft polymer coating bonded to the polypropylene or polyethylene. The coated product has superior adhesion characteristics compared to uncoated polypropylene or polyethylene.
    Type: Grant
    Filed: April 17, 1992
    Date of Patent: April 12, 1994
    Assignee: Hoechst Celanese Corp.
    Inventors: Tai-Shung Chung, Edward R. Kafchinski