Patents Represented by Attorney William H. Calnan

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  • High concentration water-soluble polymers in water-in-oil emulsions
    Patent number: 4339371
    Abstract: Water-in-oil emulsions containing high concentrations of water-soluble polymers are prepared by incorporating therein an oil-soluble, water-insoluble polymeric surfactant prepared from maleic anhydride and a comonomer.
    Type: Grant
    Filed: March 20, 1981
    Date of Patent: July 13, 1982
    Assignee: American Cyanamid Company
    Inventors: Peter M. Robinson, David H. Rakowitz, Lesley J. Nowakowski
  • Disinfectant/cleanser compositions exhibiting reduced eye irritancy potential
    Patent number: 4336152
    Abstract: Disinfectant/cleanser compositions retaining broad spectrum germicidal activity but exhibiting significantly reduced eye irritancy potential comprise a quaternary ammonium compound, a non-ionic surfactant, d-limonene, a phosphate builder, an eye irritancy reducing compound, water, and optionally a lower aliphatic alcohol.
    Type: Grant
    Filed: July 6, 1981
    Date of Patent: June 22, 1982
    Assignee: American Cyanamid Company
    Inventors: Burton M. Like, Dennis Smialowicz, Eugene Brandli
  • Disinfectant/cleanser compositions exhibiting reduced eye irritancy potential
    Patent number: 4336151
    Abstract: Disinfectant/cleanser compositions retaining broad spectrum germicidal activity but exhibiting significantly reduced eye irritancy potential comprise a quaternary ammonium compound, a non-ionic surfactant, d-limonene, an eye irritancy reducing compound, water, and optionally a lower aliphatic alcohol.
    Type: Grant
    Filed: July 6, 1981
    Date of Patent: June 22, 1982
    Assignee: American Cyanamid Company
    Inventors: Burton M. Like, Dennis Smialowicz, Eugene Brandli
  • Stabilization of rosin dispersions with low molecular weight non-ionic polymers
    Patent number: 4328141
    Abstract: Low molecular weight, non-ionic copolymers of acrylamide and a monomer selected from the group consisting of styrene, alkyl (C.sub.4 -C.sub.24) substituted acrylamides and ethylene provide improved mechanical and heat stability to colloidal aqueous rosin dispersions.
    Type: Grant
    Filed: April 2, 1981
    Date of Patent: May 4, 1982
    Assignee: American Cyanamid Company
    Inventors: John P. Farewell, David W. Lipp
  • Polyquaternary flocculants
    Patent number: 4319020
    Abstract: Polyquaternary polymeric flocculants, containing a substantially reduced total residual amount of epihalohydrin and 1,3-dihalo-2-propanol and less than about 1000 ppm of dialkylamine, are produced by reacting a polyquaternary polymer prepared from epihalohydrin, dialkylamine, and optionally a polyfunctional amine with a compound of the formula: ##STR1## wherein R.sub.1, R.sub.2, R.sub.3 and R.sub.4 are alkyl (C.sub.1 -C.sub.3), and R.sub.5 is hydrogen or hydroxyl.
    Type: Grant
    Filed: December 5, 1980
    Date of Patent: March 9, 1982
    Assignee: American Cyanamid Company
    Inventors: Anthony T. Coscia, Robert F. Tarvin, Dinshaw F. Bardoliwalla
  • 1-(2-Methoxyethyl)-2-methyl-4-phenyl-2-imidazoline
    Patent number: 4316038
    Abstract: Processes for reacting aryl vinyl compounds, nitriles, and halogens to provide imidoyl halides; processes for preparing amidine hydrohalides from the imidoyl compounds; processes for producing novel imidazolines from the amidine hydrohalides; processes for preparing novel amidoamines from the imidazolines; processes for preparing novel diamines from the amidoamines, together with novel nitrogen-containing products so produced, such products being useful for the production of various imidazothiazoles including tetramisole.
    Type: Grant
    Filed: May 21, 1980
    Date of Patent: February 16, 1982
    Assignee: American Cyanamid Company
    Inventor: Sivaraman Raghu
  • Polysubstituted butanoic acids, esters and derivatives thereof utilizing the same as herbicides
    Patent number: 4313754
    Abstract: There are provided polysubstituted butanoic acids, esters and derivatives thereof, methods for preparing the same and herbicidal compositions employing said polysubstituted butanoic acids, esters and derivatives.
    Type: Grant
    Filed: January 28, 1980
    Date of Patent: February 2, 1982
    Assignee: American Cyanamid Company
    Inventor: Stephen S. Szucs
  • Novel methoxyethylamine
    Patent number: 4314079
    Abstract: Processes for reacting arylvinyl oxides and alkoxyethylamines to provide novel N-substituted alkoxyethylamines; processes for reacting the novel N-substituted amines with nitriles to provide novel amidoamines; processes for preparing novel diamines from the amidoamines, together with the novel nitrogen-containing products so produced, such products being useful for the preparation of various imidazothiazoles including tetramisole.
    Type: Grant
    Filed: May 21, 1980
    Date of Patent: February 2, 1982
    Assignee: American Cyanamid Company
    Inventor: Sivaraman Raghu
  • Meta-(phenylalkoxy)phenyl-N-methoxy-N-methylurea compounds
    Patent number: 4308213
    Abstract: There are provided certain substituted phenylalkoxy-phenylurea compounds, methods for the preparation thereof, and methods for the selective control of dicotyledonous and certain monocotyledonous plants in the presence of agronomic crops.
    Type: Grant
    Filed: May 23, 1980
    Date of Patent: December 29, 1981
    Assignee: American Cyanamid Company
    Inventors: David M. Spatz, Barrington Cross