Patents by Inventor Kirtland P. Clark
Kirtland P. Clark 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: 7172709Abstract: A foam concentrate provides a fire-fighting composition when mixed with water so that the fire-fighting composition does not form a stable seal on cyclohexane and meets UL 162, Class B performance criteria for at least one of AFFF agents and fluoroprotein (FP) agents without requiring organic fluorine. The concentrate is formed from water and a high molecular weight acidic polymer (HMWAP) and a coordinating salt.Type: GrantFiled: December 16, 2005Date of Patent: February 6, 2007Assignee: Chemguard, Inc.Inventor: Kirtland P. Clark
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Patent number: 7135125Abstract: A foam concentrate or fire fighting composition for extinguishing and/or retarding fires is provided that meets UL162, Class B performance criteria for at least one of AFFF agents, AR-AFFF agents and fluoroprotein (FP) agents. The concentrate is used to form the fire fighting composition when mixed with water. The concentrate or fire fighting composition includes a high molecular weight fluoropolymer and water and may have a fluorine content wherein less than about 0.008% fluorine by weight of the fire fighting composition is provided from any fluorochemical surfactant. Further, the composition may meet the UL162, Class B performance criteria without forming a stable seal on cyclohexane.Type: GrantFiled: December 16, 2005Date of Patent: November 14, 2006Assignee: Chemguard IncorporatedInventor: Kirtland P. Clark
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Patent number: 7011763Abstract: A foam concentrate or fire fighting composition for extinguishing and/or retarding fires is provided that meets UL162, Class B performance criteria for at least one of AFFF agents, AR-AFFF agents and fluoroprotein (FP) agents. The concentrate is used to form the fire fighting composition when mixed with water. The concentrate or fire fighting composition includes a high molecular weight fluoropolymer and water and may have a fluorine content wherein less than about 0.008% fluorine by weight of the fire fighting composition is provided from any fluorochemical surfactant. Further, the composition may meet the UL162, Class B performance criteria without forming a stable seal on cyclohexane.Type: GrantFiled: August 6, 2002Date of Patent: March 14, 2006Assignee: Chemguard IncorporatedInventor: Kirtland P. Clark
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Patent number: 7005082Abstract: A foam concentrate provides a fire-fighting composition when mixed with water so that the fire-fighting composition does not form a stable seal on cyclohexane and meets UL 162, Class B performance criteria for at least one of AFFF agents and fluoroprotein (FP) agents without requiring organic fluorine. The concentrate is formed from water and a high molecular weight acidic polymer (HMWAP) and a coordinating salt.Type: GrantFiled: June 20, 2003Date of Patent: February 28, 2006Assignee: Chemguard IncorporatedInventor: Kirtland P. Clark
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Publication number: 20030141081Abstract: A foam concentrate or fire fighting composition for extinguishing and/or retarding fires is provided that meets UL162, Class B performance criteria for at least one of AFFF agents, AR-AFFF agents and fluoroprotein (FP) agents. The concentrate is used to form the fire fighting composition when mixed with water. The concentrate or fire fighting composition includes a high molecular weight fluoropolymer and water and may have a fluorine content wherein less than about 0.008% fluorine by weight of the fire fighting composition is provided from any fluorochemical surfactant. Further, the composition may meet the UL162, Class B performance criteria without forming a stable seal on cyclohexane.Type: ApplicationFiled: August 6, 2002Publication date: July 31, 2003Inventor: Kirtland P. Clark
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Patent number: 5750043Abstract: This invention relates to water soluble fluorochemical foam stabilizers and film formers derived from polyamines, perfluoroalkyl group containing esters or acid halides and hydrophilic and hydrophobic group containing compounds which react with primary, secondary and tertiary amino groups. The novel foam stabilizers and film formers are useful as additives for aqueous film forming foam fire fighting agents improving the foam stability against polar solvents and enhancing the fire fighting performance.Type: GrantFiled: August 25, 1994Date of Patent: May 12, 1998Assignee: Dynax CorporationInventor: Kirtland P. Clark
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Patent number: 5616273Abstract: This invention relates to synergistic surfactant compositions based on water insoluble amphoteric fluorochemical surfactants and water soluble anionic hydrocarbon or fluorochemical surfactants of the sulfate or sulfonate type and aqueous film forming foam agents derived from such synergistic surfactant compositions and a method to treat the aqueous waste stream generated by such aqueous film forming foam agents.Type: GrantFiled: August 11, 1994Date of Patent: April 1, 1997Assignee: Dynax CorporationInventors: Kirtland P. Clark, Eduard K. Kleiner
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Patent number: 5426204Abstract: A novel coating for glass with an adhesive strength of >45 Kg/cm.sup.2 and improved resistance to moisture and sunlight, which may contain opacifying pigments for decorating glass surfaces, is a hard (Shore D 84), crosslinked siloxane-urea, siloxane-urethane, siloxane-sulfide or siloxane-amide which adheres covalently to the glass surface and is resistant to scratching and delamination.Type: GrantFiled: September 12, 1994Date of Patent: June 20, 1995Assignee: Ciba-Geigy CorporationInventors: Paul Harisiades, Kirtland P. Clark
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Patent number: 5372889Abstract: A novel coating for glass with an adhesive strength of >45 Kg/cm.sup.2 and improved resistance to moisture and sunlight, which may contain opacifying pigments for decorating glass surfaces, is a hard (Shore D 84), crosslinked siloxane-urea, siloxane-urethane, siloxane-sulfide or siloxane-amide which adheres covalently to the glass surface and is resistant to scratching and delamination.Type: GrantFiled: September 14, 1993Date of Patent: December 13, 1994Assignee: Ciba-Geigy CorporationInventors: Paul Harisiades, Kirtland P. Clark
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Patent number: 5266715Abstract: A novel coating for glass with an adhesive strength of >45 Kg/cm.sup.2 and improved resistance to moisture and sunlight, which may contain opacifying pigments for decorating glass surfaces, is a hard (Shore D 84), crosslinked siloxane-urea, siloxane-urethane, siloxane-sulfide or siloxane-amide which adheres covalently to the glass surface and is resistant to scratching and delamination.Type: GrantFiled: March 6, 1991Date of Patent: November 30, 1993Assignee: Ciba-Geigy CorporationInventors: Paul Harisiades, Kirtland P. Clark
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Patent number: 5218021Abstract: Co-oligmers of the formula R.sub.f --E.sub.m --(S).sub.n --[M.sub.1 ].sub.x --[M.sub.2 ].sub.y --H and mixtures thereof, wherein R.sub.f is a perfluoroalkyl group, E is a linkage group, M.sub.1 represents a non-ionic hydrophilic monomer unit, M.sub.2 represents an anionic hydrophilic monomer unit, n and m are optionally 0 or 1, and x and y represent the number of monomer units present in the novel co-oligomers, the sum of x and y being between 5 and 200, and y/(x+y) being between 0.01 and 0.98; are useful as additives in polar-solvent fire-fighting compositions when used in conjunction with polysaccharides and other adjuvants. They improve dynamic foam stability and vapor suppressing ability of the foam, thereby reducing the flammability of polar solvent contaminated foams and consequently improving extinguishment and burnback resistance.Type: GrantFiled: February 6, 1992Date of Patent: June 8, 1993Assignee: Ciba-Geigy CorporationInventors: Kirtland P. Clark, Michael Jacobson, Chang H. Jho
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Patent number: 5200493Abstract: Heteroatom containing perfluoroalkyl terminated neopentyl mercapto-alcohols of the formulas I and IIHS--[CH.sub.2 C(CH.sub.2 X--E--R.sub.f).sub.2 CH.sub.2 ]--OH (I)HS--[CH.sub.2 C(CH.sub.2 X.sub.1 --R.sub.f).sub.2 CH.sub.2 ]--OH (II)are prepared from the corresponding perfluorinated neopentyl oxetanes where R.sub.f is a straight or branched chain perfluoroalkyl of 1 to 18 carbon atoms or said perfluoroalkyl substituted by perfluoroalkoxy of 2 to 6 carbon atoms, E is a linking group, and X and X.sub.1 are heteroatom moieties.The reaction products of these fluorinated mercapto-alcohols with electrophiles are disclosed as are certain functional derivatives. Compositions containing such materials provide improved thermal stability and useful low surface energy oil and water repellent coatings for textiles, glass, paper, leather, and other materials.Type: GrantFiled: June 19, 1992Date of Patent: April 6, 1993Assignee: Ciba-Geigy CorporationInventors: Michael Jacobson, Kirtland P. Clark
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Patent number: 5145996Abstract: Heteroatom containing perfluoroalkyl terminated neopentyl mercapto-alcohols of the formulas I and IIHS--[CH.sub.2 C(CH.sub.2 X--E--R.sub.f).sub.2 CH.sub.2 ]--OH (I)HS--[CH.sub.2 C(CH.sub.2 X.sub.1 --R.sub.f).sub.2 CH.sub.2 ]--OH (II)are prepared from the corresponding perfluorinated neopentyl oxetans where R.sub.f is a straight or branched chain perfluoroalkyl of 1 to 18 carbon atoms or said perfluoroalkyl substituted by perfluoroalkoxy of 2 to 6 carbon atoms, E is a linking group, and X and X.sub.1 are heteroatom moieties.The reaction products of these fluorinated mercapto-alcohols with electrophiles are disclosed as are certain functional derivatives. Compositions containing such materials provide improved thermal stability and useful low surface energy oil and water repellent coatings for textiles, glass, paper, leather, and other materials.Type: GrantFiled: February 25, 1991Date of Patent: September 8, 1992Assignee: Ciba-Geigy CorporationInventors: Michael Jacobson, Kirtland P. Clark
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Patent number: 5097048Abstract: Heteroatom containing perfluoroalkyl terminated oxetanes of the formula ##STR1## the formula ##STR2## are prepared from 3,3-dihalogenated oxetanes and thiols of the formula R.sub.f -E-SH, amines of the formula R.sub.f -E-NH-R, alcohols of the formula R.sub.f -E-OH or perfluoro-amides, wherein R.sub.f is a straight chain perfluoroalkyl of 1 to 18 carbon atoms.The reaction products of these fluorinated oxetanes with nucleophiles are disclosed, as are certain functional derivatives. These products may serve as intermediates or have utility in their own right. Fluorinated polyethers derived therefrom are disclosed and include random or block compositions containing the residue from at least one R.sub.f oxetane, containing two perfluoroalkyl hetero groups.These polyethers provide improved thermal stability and useful low surface energy oil and water repellent coatings for textiles, glass, paper, leather and other materials.Type: GrantFiled: November 30, 1989Date of Patent: March 17, 1992Assignee: Ciba-Geigy CorporationInventors: Robert A. Falk, Michael Jacobson, Kirtland P. Clark
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Patent number: 5091550Abstract: 5,5-Bis(perfluoroalkylheteromethyl)-2-hydroxy-2-oxo-1,3,2-dioxaphosphorinan es, derived acyclic phosphorus and phosphoric acids obtained by ring-opening, and salts or esters thereof are prepared from heteroatom containing perfluoroalkyl terminated neopentyl glycols of the formula: HO[CH.sub.2 C(CH.sub.2 --X--E.sub.n --R.sub.f).sub.2 CH.sub.2 O]H by cyclization with appropriate phosphorus containing esters or acids, or hydrolysis. These compositions provide improved thermal stability, and useful low surface energy oil and water repellent coatings for textiles, glass, paper, leather and other materials.Another aspect of this invention relates to the use of the phosphite group containing products as polymer stabilizers.Type: GrantFiled: April 20, 1990Date of Patent: February 25, 1992Assignee: Ciba-Geigy CorporationInventors: Robert A. Falk, Kirtland P. Clark
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Patent number: 5045624Abstract: Heteroatom containing perfluoroalkyl terminated neopentyl glycols of the formulas HO[--CH.sub.2 C(CH.sub.2 X--E--R.sub.f).sub.2 CH.sub.2 O].sub.1-3 --H or HO[--CH.sub.2 C(CH.sub.2 X--R.sub.f).sub.2 CH.sub.2 O].sub.1-3 --H are prepared from halogenated neopentyl glycols or oxetanes and thiols of the formula R.sub.f --E--SH, amines of the formula R.sub.f --E--NH--R, alcohols of the formula R.sub.f --E--OH or perfluoro-amides, wherein R.sub.f is a straight or branched chain perfluoroalkyl of 1 to 18 carbon atoms or said perfluoroalkyl substituted by perfluoroalkoxy of 2 to 6 carbon atoms.The polymeric reaction products of said fluorinated diols, and optionally other diols with isocyanates to prepare polyurethanes; with amines and isocyanates to prepare polyureas/polyuretanes; with acids or derivatives to prepare polyesters or polycarbonates are disclosed. These include polymeric, random or block urethane, and/or urea, and/or ester compositions containing the residue of at least one R.sub.Type: GrantFiled: June 5, 1990Date of Patent: September 3, 1991Assignee: Ciba-Geigy CorporationInventors: Robert A. Falk, Kirtland P. Clark, Athanasios Karydas, Michael Jacobson
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Patent number: 4957904Abstract: Novel nonionic perfluoroalkylthioglycosides of the formula, R.sub.f -E-S-saccharide are described, wherein R.sub.f is a straight or branched chain perfluoroalkyl of 1 to 18 carbon atoms or said perfluoroalkyl substituted by perfluoroalkoxy of 2 to 6 carbon atoms, E is a connecting group, and the saccharide is a mono-, di-, or higher oligosaccharide, comprising 1 to 30 units of 5, 6 or 7 carbon-membered sugars.Type: GrantFiled: May 18, 1989Date of Patent: September 18, 1990Assignee: Ciba-Geigy CorporationInventors: Robert A. Falk, Kirtland P. Clark, Gregory R. Coughlin
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Patent number: 4946992Abstract: Heteroatom containing perfluoroalkyl terminated neopentyl glycols of the formulas HO[--CH.sub.2 C(CH.sub.2 X--E--R.sub.f).sub.2 CH.sub.2 O].sub.1-3 --H or HO[--CH.sub.2 C(CH.sub.2 X--R.sub.f).sub.2 CH.sub.2 O].sub.1-3 --H are prepared from halogenated neopentyl glycols or oxetanes and thiols of the formula R.sub.f --E--SH, amines of the formuls R.sub.f --E--NH--R, alcohols of the formula R.sub.f --E--OH or perfluoro-amides, wherein R.sub.f is a straight or branched chain perfluoroalkyl of 1 to 18 carbon atoms or said perfluoroalkyl substituted by perfluoroalkoxy of 2 to 6 carbon atoms.The polymeric reaction products of said fluorinated diols, and optionally other diols with isocyanates to prepare polyurethanes; with amines and isocyanated to prepare polyureas/polyurethanes; with acids or derivatives to prepare polyesters or polycarbonates are disclosed. These include polymeric, random or block urethane, and/or urea, and/or ester compositions containing the residue of at least one R.sub.Type: GrantFiled: April 14, 1989Date of Patent: August 7, 1990Assignee: Ciba-Geigy CorporationInventors: Robert A. Falk, Kirtland P. Clark, Athanasios Karydas, Michael Jacobson
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Patent number: 4898981Abstract: Heteroatom containing perfluoroalkyl terminated neopentyl glycols of the formula HO[--CH.sub.2 C(CH.sub.2 X--E--R.sub.f).sub.2 CH.sub.2 O].sub.1-3 --H prepared from halogenated neopentyl glycols and thiols of the formula R.sub.f --E--SH, or amines of the formula R.sub.f --E--NH--R wherein R.sub.f is a hydrophonic, olephobic fluoroaliphatic group of up to 20 carbon atoms, E is alkylene of up to 10 carbon atoms, optionally interrupted by up to three groups including --NR, --O, --S--, --SO.sub.2 --, --O.sub.2 C, CONR, and --SO.sub.2 NR, and X is S,SO.sub.2 or NR.sub.2, where R is independently hydrogen, alkyl, or hydroxyalkyl of 1 to 6 carbon atoms are described.The polymeric reaction products of said fluorinated diols, and optionally other diols with isocyanates to prepare polyurethanes; with amines and isocyanates, to prepare polyureas/polyurethanes; with acids or derivatives, to prepare polyesters or polycarbonates are disclosed.Type: GrantFiled: June 20, 1988Date of Patent: February 6, 1990Assignee: Ciba-Geigy CorporationInventors: Robert A. Falk, Kirtland P. Clark, Athanasios Karydas
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Patent number: 4859349Abstract: The instant invention relates to water-soluble anionic polysaccharides bound to perfluoroalkyl cationic surfactants. Polymer complexes are formed which are especially useful for fighting fires of hydrophilic or polar liquids. They have the unique property of forming an impervious gel when foamed with suitable surfactants and projected onto burning liquids. The gelatinous blanket is resistant to the fuel and protects the foam blanket from destruction. Consequently, superior fire-fighting agents can be prepared for fires which are otherwise very difficult to extinguish.Type: GrantFiled: October 9, 1987Date of Patent: August 22, 1989Assignee: Ciba-Geigy CorporationInventors: Kirtland P. Clark, Robert A. Falk