Patents Represented by Attorney Stanley M. Parmerter

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  • Refractory binders
    Patent number: 4657950
    Abstract: Refractory shaped articles are prepared by heating refractory mixes comprised of refractory particles and an alkoxy modified phenolic resole resin having at least one alkoxy methylene group for every 20 phenolic hydroxyl groups.
    Type: Grant
    Filed: October 12, 1984
    Date of Patent: April 14, 1987
    Assignee: Acme Resin Corporation
    Inventors: Raja Iyer, Rasik C. Shah, Robert A. Laitar
  • Cold-setting compositions for foundry sand cores and molds
    Patent number: 4644022
    Abstract: A cold-setting foundry binder composition, which provides foundry cores and molds with improved curing speed, comprising a particulate refractory material, a resin binder, an acid curing catalyst, and an accelerator. The accelerator is selected from the group: dihydroxybenzenes, derivatives of dihydroxybenzenes, trihydroxybenzenes, and their mixtures.
    Type: Grant
    Filed: November 27, 1985
    Date of Patent: February 17, 1987
    Assignee: Acme Resin Corporation
    Inventor: Raja Iyer
  • Process for preparing alkoxy-modified phenolic resole resins
    Patent number: 4634758
    Abstract: A process for preparing an alkoxy-modified phenolic resole resin useful as the polyhydroxy component of a urethane binder composition. A phenol is reacted with a molar excess of an aldehyde in the presence of an alkaline catalyst and the resulting product is further reacted with a monohydric aliphatic alcohol under acidic conditions.
    Type: Grant
    Filed: September 30, 1985
    Date of Patent: January 6, 1987
    Assignee: Acme Resin Corporation
    Inventors: Robert A. Laitar, Eduardo Gomez
  • Novel thermostable pullulanase enzyme and method for its production
    Patent number: 4628028
    Abstract: This invention relates to a pullulanase enzyme exhibiting thermostability at a pH of about 5 which is derived from thermophilic, obligately anaerobic bacterium. T. brockii, and to a process for its production. The pullulanase is useful for preparation of maltotriose and for conversion of starch to maltose syrups.
    Type: Grant
    Filed: May 23, 1985
    Date of Patent: December 9, 1986
    Assignee: CPC International Inc.
    Inventors: Dennis M. Katkocin, Nancy W. Zeman, Shiow-Shong Yang
  • Novel thermostable, aciduric alpha-amylase and method for its production
    Patent number: 4613570
    Abstract: This invention relates to an alpha-amylase enzyme exhibiting thermostability at an acidic pH, produced by a strain of Clostridium thermohydrosulfuricum. This enzyme is especially useful for the preparation of glucose-containing syrups from starch.
    Type: Grant
    Filed: February 8, 1985
    Date of Patent: September 23, 1986
    Assignee: CPC International Inc.
    Inventor: Nancy W. Zeman
  • Plasmids containing a gene coding for a thermostable pullulanase and pullulanase-producing strains of Escherichia coli and Bacillus subtilis containing the plasmids
    Patent number: 4612287
    Abstract: The gene coding for a thermostable pullulanase enzyme is incorporated into chimeric plasmids which are inserted into and reproduced by E. coli or B. subtilis host microorganisms. When microorganisms containing the chimeric plasmids are grown in fermentation media, they produce the pullulanase enzyme.
    Type: Grant
    Filed: May 23, 1985
    Date of Patent: September 16, 1986
    Assignee: CPC International Inc.
    Inventors: Robert D. Coleman, Michael P. McAlister
  • Novel thermostable, aciduric alpha-amylase and method for its production
    Patent number: 4578352
    Abstract: This invention relates to an alpha-amylase enzyme exhibiting thermostability at an acidic pH which is derived from a spore-forming, thermophilic, anaerobic bacterium and to a process for its production. This alpha-amylase is especially useful for the preparation of glucose-containing syrups from starch.
    Type: Grant
    Filed: July 13, 1983
    Date of Patent: March 25, 1986
    Assignee: CPC International Inc.
    Inventors: Dennis M. Katkocin, Nancy S. Word, Shiow-Shong Yang
  • Production of butanol by fermentation in the presence of carbon monoxide
    Patent number: 4560658
    Abstract: An improved process for the production of butanol by fermentation of carbon-containing compounds with C. acetobutylicum is disclosed. The fermentation is conducted in an aqueous medium containing a sufficient concentration of dissolved carbon monoxide to give increased yields of butanol while suppressing the formation of hydrogen and acetone. This fermentation also gives increased conversion of butyric acid to solvents.
    Type: Grant
    Filed: December 5, 1983
    Date of Patent: December 24, 1985
    Assignee: CPC International Inc.
    Inventors: Rathin Datta, Joseph G. Zeikus
  • Polyurethane binder compositions
    Patent number: 4546124
    Abstract: A foundry binder composition which provides foundry cores and molds of superior hot strength comprises a polyisocyanate, a polyhydroxy component and a catalyst. The polyhydroxy component is an alkoxy modified phenolic resole resin containing at least one alkoxy methylene group for every six phenolic nuclei in the resin.
    Type: Grant
    Filed: October 12, 1984
    Date of Patent: October 8, 1985
    Assignee: Acme Resin Corporation
    Inventors: Robert A. Laitar, Eduardo Gomez
  • Thermostable glucoamylase and method for its production
    Patent number: 4536477
    Abstract: This invention relates to a glucoamylase enzyme exhibiting thermostability at pH values between 6 and 7 which is derived from a spore-forming, thermophilic, anaerobic bacterium and to a process for its production. The glucoamylase is especially useful for the preparation of glucose-containing syrups from starch.
    Type: Grant
    Filed: August 17, 1983
    Date of Patent: August 20, 1985
    Assignee: CPC International Inc.
    Inventors: Dennis M. Katkocin, Nancy S. Word, Shiow-Shong Yang
  • Strain of Clostridium acetobutylicum and process for its preparation
    Patent number: 4521516
    Abstract: A novel asporogenic strain of Clostridium acetobutylicum is produced by growing a spore-forming strain in a continuous culturing reactor. Culturing is conducted at a dilution rate which prevents accumulation of butanol and acetone in the medium. Culturing at this dilution rate is continued until the asporogenic strain is obtained.
    Type: Grant
    Filed: November 18, 1982
    Date of Patent: June 4, 1985
    Assignee: CPC International Inc.
    Inventors: Christopher J. Lemme, Jeffrey R. Frankiewicz
  • Production of butanol by a continuous fermentation process
    Patent number: 4520104
    Abstract: An improved process for the continuous production of butanol by fermentation of carbohydrates with C. acetobutylicum is disclosed. This process combines continuous inoculum production at a high dilution rate and cycling the fermentation broth through a material which adsorbs butanol whereby a vigorous cell population is maintained in the fermentation reactor for extended periods of time.
    Type: Grant
    Filed: November 18, 1982
    Date of Patent: May 28, 1985
    Assignee: CPC International Inc.
    Inventors: Robert E. Heady, Jeffrey R. Frankiewicz
  • Polyisocyanate compositions useful for polyurethane binders
    Patent number: 4514316
    Abstract: A polyisocyanate component useful in polyurethane binder compositions is provided. The polyisocyanate component incorporates organic phosphorous compounds that impart longer bench life to the binders making them more useful for prepraring moldable compositions such as foundry cores and molds.
    Type: Grant
    Filed: December 8, 1983
    Date of Patent: April 30, 1985
    Assignee: Acme Resin Corporation
    Inventor: Robert A. Laitar
  • Mutant strain of Clostridium thermoaceticum useful for the preparation of acetic acid
    Patent number: 4513084
    Abstract: A biologically pure mutant of C. thermoaceticum (ATCC No. 39,289) useful for the production of acetic acid by a fermentation reaction. This mutant is capable of growing at a pH below 5.0 and shows a specific growth rate of at least 0.30 hr.sup.-1 when continuously cultured under optimum conditions.
    Type: Grant
    Filed: March 11, 1983
    Date of Patent: April 23, 1985
    Assignee: CPC International Inc.
    Inventors: Frederick A. Keller, Jr., Jeffrey S. Ganoung, Susan J. Luenser
  • Hot-water dispersible corn starch having high paste viscosity
    Patent number: 4508576
    Abstract: A process for preparing a corn starch product that forms a uniform viscous dispersion when added to boiling water. This process comprises heating a mixture of starch, surfactant and water followed by subjecting the mixture to microwave radiation.
    Type: Grant
    Filed: October 18, 1983
    Date of Patent: April 2, 1985
    Assignee: CPC International Inc.
    Inventor: John P. Mudde
  • Dehydration of 2,5-dimethyl-2,5-hexanediol
    Patent number: 4507518
    Abstract: This invention relates to an improved process for the dehydration of 2,5-dimethyl-2,5-hexanediol to give good yields of 2,5-dimethyl-2,4-hexadiene with a minimum of by-products. This is accomplished by heating 2,5-dimethyl-2,5-hexanediol with a montmorillonite clay catalyst, preferably in the presence of a lower aliphatic alcohol.
    Type: Grant
    Filed: December 14, 1983
    Date of Patent: March 26, 1985
    Assignee: Penick Corporation
    Inventors: David V. Petrocine, Ronald Harmetz
  • Production of organic acids by a continuous fermentation process
    Patent number: 4506012
    Abstract: An improved process for preparing organic acids by a continuous homoacidogenic fermentation is disclosed. This process provides increased volumetric productivity of the acid by employing a microorganism growing on the surface of a support material such as activated carbon or corn cob granules.
    Type: Grant
    Filed: March 11, 1983
    Date of Patent: March 19, 1985
    Assignee: CPC International Inc.
    Inventor: William M. Reed
  • Process for cloning the gene coding for a thermostable alpha-amylase into Escherichia coli and Bacillus subtilis
    Patent number: 4493893
    Abstract: An improved process for producing a thermostable alpha-amylase enzyme is described. The gene coding for the alpha-amylase is incorporated into a chimeric plasmid which is produced in multiple copies by a host microorganism.
    Type: Grant
    Filed: March 11, 1983
    Date of Patent: January 15, 1985
    Assignee: CPC International Inc.
    Inventors: Jonathan R. Mielenz, Susan Mickel
  • Foundry core compositions
    Patent number: 4487868
    Abstract: A foundry core composition containing a rapid-curing furfuryl alcohol and phenolic resole resin system useful in the "hot-box" process is provided. This composition includes an acidic curing agent of low toxicity whose catalytic activity is enhanced by the presence of a water-soluble polymeric polyhydroxy compound.
    Type: Grant
    Filed: May 25, 1983
    Date of Patent: December 11, 1984
    Assignee: Acme Resin Corporation
    Inventors: David R. Armbruster, Luis R. Rodriguez
  • Process for making n-butyl butyrate
    Patent number: 4487832
    Abstract: A novel method for making n-butyl butyrate is disclosed. This method comprises passing a fermentation medium containing solvent-producing cells of C. acetobutylicum through a bed of activated carbon followed by desorbing the n-butyl butyrate from the carbon.
    Type: Grant
    Filed: November 18, 1982
    Date of Patent: December 11, 1984
    Assignee: CPC International Inc.
    Inventors: Robert E. Heady, Jorge H. Alonso