Patents by Inventor Michael R. Friswell
Michael R. Friswell 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).
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Patent number: 8529639Abstract: A method of coloring a substrate is disclosed that includes the steps of dissolving a vegetable oil ester based solvent wherein the ester is selected from a group consisting of esters having carbon chain length of C-1 to C-18 in a liquid solvent dye to form a low-sulfur containing dye formulation such that the vegetable oil ester is present in an amount of between about 5 and 80 percent by weight of the dye formulation, and mixing sufficient amounts of the dye formulation with the substrate to produce mixtures of predetermined color in which the levels of toxic substrate are substantially less than in otherwise equivalent mixtures that include hydrocarbon-based solvents.Type: GrantFiled: November 3, 2010Date of Patent: September 10, 2013Assignee: Sunbelt CorporationInventor: Michael R. Friswell
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Publication number: 20110044748Abstract: A method of coloring a substrate is disclosed that includes the steps of dissolving a vegetable oil ester based solvent wherein the ester is selected from a group consisting of esters having carbon chain length of C-1 to C-18 in a liquid solvent dye to form a low-sulfur containing dye formulation such that the vegetable oil ester is present in an amount of between about 5 and 80 percent by weight of the dye formulation, and mixing sufficient amounts of the dye formulation with the substrate to produce mixtures of predetermined color in which the levels of toxic substrate are substantially less than in otherwise equivalent mixtures that include hydrocarbon-based solvents.Type: ApplicationFiled: November 3, 2010Publication date: February 24, 2011Applicant: SUNBELT CORPORATIONInventor: Michael R. Friswell
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Patent number: 7842102Abstract: A dye formulation is disclosed that includes a vegetable oil ester based solvents that have carbon chain lengths of C-1 to C-18, a solvent dye that is a true liquid dye dissolved in the vegetable oil ester for imparting color to the dye formulation, and reduced sulfur levels in commercially available dye formulations as compared to those in hydrocarbon based solvent systems. Sulfur content is typically reduced to 2-3 percent of dye formulations in hydrocarbon based solvents. The formulations are particularly useful for tagging petroleum substrates as well as writing instrument and ink jet formulations.Type: GrantFiled: November 5, 2007Date of Patent: November 30, 2010Assignee: Sunbelt CorporationInventor: Michael R. Friswell
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Publication number: 20090113640Abstract: A dye formulation is disclosed that includes a vegetable oil ester based solvents that have carbon chain lengths of C-1 to C-18, a solvent dye that is a true liquid dye dissolved in the vegetable oil ester for imparting color to the dye formulation, and reduced sulfur levels in commercially available dye formulations as compared to those in hydrocarbon based solvent systems. Sulfur content is typically reduced to 2-3 percent of dye formulations in hydrocarbon based solvents. The formulations are particularly useful for tagging petroleum substrates as well as writing instrument and ink jet formulations.Type: ApplicationFiled: November 5, 2007Publication date: May 7, 2009Inventor: Michael R. Friswell
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Patent number: 6666897Abstract: The present invention relates to black alcohol soluble dye formulations of high color intensity, low viscosity, and high tinctorial strength. The formulations are particularly useful for writing instruments such as felt tip and roller ball pens.Type: GrantFiled: December 7, 2000Date of Patent: December 23, 2003Inventors: Alejandro Zimin, Sr., Michael R. Friswell
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Publication number: 20020104173Abstract: The present invention relates to black alcohol soluble dye formulations of high color intensity, low viscosity, and high tinctorial strength. The formulations are particularly useful for writing instruments such as felt tip and roller ball pens.Type: ApplicationFiled: December 7, 2000Publication date: August 8, 2002Inventors: Alejandro Zimin, Michael R. Friswell
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Patent number: 6294110Abstract: Two or more dyes or markers, including a dye or marker having an absorbance peak in the 400 to 500 nm range and including a dye or marker having an absorbance peak in the 560 to 700 nm range are mixed together in appropriate ratios so when added to a liquid, such as a petroleum fuel, at combined levels of from 5 to 100 ppm, the colors of the dyes and/or markers cancel each other such that a “water-white” liquid still appears “water-white”.Type: GrantFiled: November 18, 1999Date of Patent: September 25, 2001Assignee: Rohm and Haas CompanyInventors: Michael R. Friswell, Al Zimin, Sr., Peter A. Caputo
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Patent number: 6150306Abstract: A dye composition has the formula: ##STR1## where R.sup.1 and R.sup.2 are the same or different and are selected from (A) C.sub.2 -C.sub.12 alkyloxyalkyl, and (B) C.sub.9-12 alkyl, (A) comprising from about 30 to 80 mole % of the R groups, (B) comprising 20 to about 70 mole % of the R groups. The dye composition is useful as a fluorescent tracer in refrigerant lubricants of the polyol ester types used in non-Freon refrigerants.Type: GrantFiled: March 4, 1999Date of Patent: November 21, 2000Assignee: Morton Internatioanl Inc.Inventor: Michael R. Friswell
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Patent number: 5980593Abstract: Liquid petroleum products and industrial liquids are marked with highly soluble silent fluorescent markers having the formula: ##STR1## where R is selected from a linear or branched C.sub.1 -C.sub.18 alkylcarboxy radical.Type: GrantFiled: February 13, 1998Date of Patent: November 9, 1999Assignee: Morton International, Inc.Inventors: Michael R. Friswell, Alejandro Zimin, Sr., Peter A. Caputo
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Patent number: 5737871Abstract: Compounds known as "solid dispersed dyes" are synthesized in a two-phase system from which they disproportionate into a water-immiscible solvent phase, providing marker solutions. Marker solution is added to a petroleum fuel to introduce the compound thereto in dissolved form. Subsequently, extraction of the compound with acidic aqueous solution produces a chromophoric reaction which indicates presence of the compound in the petroleum fuel.Type: GrantFiled: December 23, 1996Date of Patent: April 14, 1998Assignee: Morton International, Inc.Inventor: Michael R. Friswell
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Patent number: 5504199Abstract: A dye which is either 2-naphthalenol (phenylazo) phenyl azo alkyl derivatives and 1,4-dialkylamino anthraquinone is added to sufficient non-ionic surfactant to compatibilize it with ethanol and an solvent to produce a homogeneous solution. The homogeneous solution is added to ethanol in an amount to provide a desired amount of coloration to the ethanol.Type: GrantFiled: October 28, 1994Date of Patent: April 2, 1996Assignee: Morton International, Inc.Inventors: Alejandra Zimin, Peter A. Caputo, Michael R. Friswell, David L. Booth, Michael P. Hinton
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Patent number: 5490872Abstract: Petroleum fuels are tagged with markers having the formula: ##STR1## where R.sup.1 and R.sup.2 are selected from H, methyl, ethyl, methoxy, halogen, cyano and nitro and R.sup.3 is selected from methyl, methoxy methoxyethoxy and morpholino.Type: GrantFiled: April 28, 1994Date of Patent: February 13, 1996Assignee: Morton International, Inc.Inventors: Michael R. Friswell, Michael J. Hallisy, Michael P. Hinton
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Patent number: 5306343Abstract: A tag is added to an asphalt additive, typically an anti-stripping agent. The additive dye is mixed with other components of an asphalt composition and melt processed at 300.degree. F. (149.degree. C.) or above to produce an asphalt composition. Presence of the tag to identify presence of the additive is performed by dissolving the asphalt portion of the composition in a water-immiscible solvent and then extracting the tag in an acidic aqueous solution and developing a color with a diazo compound.Type: GrantFiled: April 26, 1993Date of Patent: April 26, 1994Assignee: Morton International, Inc.Inventors: Walter A. Richardson, III, Alejandro Zimin, Sr., James Fuerholzer, Michael R. Friswell, Michael P. Hinton, Peter A. Caputo
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Patent number: 5205840Abstract: Liquid petroleum products are tagged with a marker which is a compound or mixture of compounds having the formula: ##STR1## wherein R.sup.1 is C.sub.1 -C.sub.6 alkyl, and R.sup.2 and R.sup.3 are nothing or --O--(C.sub.1 -C.sub.3 alkyl).Type: GrantFiled: September 30, 1991Date of Patent: April 27, 1993Assignee: Morton International, Inc.Inventors: Michael R. Friswell, Michael P. Hinton
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Patent number: 5156653Abstract: Liquid petroleum products are marked with markers having the formula: ##STR1## wherein the R.sub.1 's and the R.sub.2 's are the same or different and are each selected from --H and C.sub.1 -C.sub.7 alkyls; provided that at least one, and preferably both, R.sub.1 's are a C.sub.3 -C.sub.7 alkyl; and provided that the R.sub.3 's are the same or different and are selected from --H, --NO.sub.2, --Br, --F, --CN, and --Me; and provided that at least one R.sub.3 is selected from --NO.sub.2, --Cl, --Br, --F, and --CN.Type: GrantFiled: April 18, 1991Date of Patent: October 20, 1992Assignee: Morton International, Inc.Inventors: Michael R. Friswell, Richard B. Orelup
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Patent number: 5142030Abstract: Novel dyes are provided having the formula: ##STR1## wherein the R's are the same or different and each is a C.sub.6 -C.sub.12 alkyl.Type: GrantFiled: August 21, 1991Date of Patent: August 25, 1992Assignee: Morton International, Inc.Inventors: Alejandro Zimin, Michael R. Friswell, Adam E. Verillo
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Patent number: 5049189Abstract: A liquid dyestuff, useful as a major component of a ballpoint ink is prepared. A dye base, having both a sulfonic acid group and an azo group bonded to the same aromatic ring system, is provided in the aqueous phase of a two-phase system in which the organic phase is about 30 percent or more benzyl alcohol. In this two-phase system, the dye base is complexed with a diaryl quanidine, and the resulting dye concentrates in the organic solvent phase.Type: GrantFiled: February 2, 1990Date of Patent: September 17, 1991Assignee: Morton International, Inc.Inventors: Michael R. Friswell, Michael P. Hinton, Alejandro Zimin