Patents by Inventor Mark L. Listemann
Mark L. Listemann 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: 5633293Abstract: A method for preparing a polyurethane foam which comprises reacting an organic polyisocyanate and a polyol in the presence of a blowing agent, a cell stabilizer and a catalyst composition consisting essentially of 0-50 mole % compound I and 50-100 mole % compound II: ##STR1## wherein R is hydrogen, a C.sub.1 -C.sub.4 alkly, C.sub.6 -C.sub.8 aryl, or C.sub.7 -C.sub.9 aralkyl group; andn is 2 to 8.Type: GrantFiled: November 30, 1995Date of Patent: May 27, 1997Assignee: Air Products and Chemicals, Inc.Inventors: Richard Van Court Carr, Mark L. Listemann, Ann C. L. Savoca
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Patent number: 5559161Abstract: A method for preparing a polyurethane foam which comprises reacting an organic polyisocyanate and a polyol in the presence of a blowing agent, a cell stabilizer and a catalyst composition consisting essentially of a compound of structure I ##STR1## wherein R is hydrogen, a C.sub.1 -C.sub.4 alkyl, C.sub.6 -C.sub.8 aryl, or C.sub.7 -C.sub.Type: GrantFiled: February 18, 1994Date of Patent: September 24, 1996Assignee: Air Products and Chemicals, Inc.Inventors: Herbert C. Klotz, Kevin R. Lassila, Mark L. Listemann, Kristen E. Minnich, Ann C. L. Savoca
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Patent number: 5539007Abstract: A method for catalyzing the blowing reaction and making polyurethane foams employing a catalyst composition consisting essentially of a hydroxy-functional imidazole of the following formula I ##STR1## where R.sup.1 is a C.sub.1 -C.sub.10 alkyl; R.sup.2 is hydrogen, methyl or ethyl and R.sup.3 is hydrogen or a C.sub.1 -C.sub.20 organic group optionally having an ether functionality, provided that when R.sup.1 is methyl, R.sup.2 and R.sup.3 are not both hydrogen or a hydrogen and a methyl, in combination with a boron compound of the formulaR.sub.n B(OH).sub.3-nwhere n=0 or 1, and R=C.sub.1 -C.sub.8 alkyl, C.sub.5 -C.sub.8 cycloalkyl, or C.sub.6 -C.sub.10 aryl.Type: GrantFiled: June 7, 1995Date of Patent: July 23, 1996Assignee: Air Products and Chemicals, Inc.Inventors: Mark L. Listemann, Lisa A. Mercando, Ann C. L. Savoca
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Hydroxy and amino functional pyrrolizidine catalyst compositions for the production of polyurethanes
Patent number: 5512603Abstract: A method for preparing a polyurethane foam which comprises reacting an organic polyisocyanate and a polyol in the presence of a blowing agent, cell stabilizer and a catalyst composition consisting essentially of a pyrrolizidine of the formula: ##STR1## where R.sub.1 and R.sub.2 independently are --H, --OH, ##STR2## or --NR.sub.4 R.sub.5, R.sub.3 is hydrogen, a C.sub.1 -C.sub.12 alkyl, C.sub.5 -C.sub.6 cycloalkyl, C.sub.6 -C.sub.10 aryl, or C.sub.7 -C.sub.11 arylalkyl group, andR.sub.4 and R.sub.5 independently represent H, a C.sub.1 -C.sub.12 alkyl group, C.sub.5 -C.sub.10 cycloalkyl, C.sub.6 -C.sub.10 aryl, or C.sub.7 -C.sub.11 arylalkyl group, provided that at least R.sub.1 or R.sub.2 is not hydrogen.Type: GrantFiled: February 22, 1994Date of Patent: April 30, 1996Assignee: Air Products and Chemicals, Inc.Inventors: Richard V. C. Carr, Kevin R. Lassila, Mark L. Listemann, Lisa A. Mercando, Kristen E. Minnich, Ann C. L. Savoca, Amy L. Wressell -
Patent number: 5508314Abstract: A method for preparing a polyurethane foam which comprises reacting an organic polyisocyanate and a polyol in the presence of a blowing agent, cell stabilizer and a catalyst composition consisting essentially of at least one of the permethylated mono- and dialkylene oxide adducts of tris(2-aminoethyl)amine of structures I, II and III, or any combination thereof ##STR1## wherein R is hydrogen, a C.sub.1 -C.sub.4 alkyl, C.sub.6 -C.sub.8 aryl, or C.sub.7 -C.sub.9 aralkyl group.Type: GrantFiled: February 18, 1994Date of Patent: April 16, 1996Assignee: Air Products and Chemicals, Inc.Inventors: Mark L. Listemann, Kevin R. Lassila, Kristen E. Minnich, Ann C. L. Savoca
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Patent number: 5356942Abstract: An amine-boron composition for catalyzing the urethane reaction, particularly in preparing a polyurethane foam, consisting essentially of the addition product of a tertiary amine and a boron compound of the formulaR.sub.n B(OH).sub.3-nwheren=0 or 1, andR=C.sub.1 -C.sub.8 alkyl, C.sub.5 -C.sub.8 cycloalkyl or C.sub.6 -C.sub.10 aryl.Preferred catalysts are prepared by mixing triethylenediamine or 3-quinuclidinol with boric acid.Type: GrantFiled: June 10, 1992Date of Patent: October 18, 1994Assignee: Air Products and Chemicals, Inc.Inventors: Ann C. L. Savoca, Michael Louie, Mark L. Listemann
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Patent number: 5288864Abstract: A method for preparing a polyurethane foam which comprises reacting an organic polyisocyanate and a polyol in the presence of a blowing agent, cell stabilizer and a catalyst composition which comprises a quaternary ammonium carboxylate inner salt having the following formula I ##STR1## where R.sub.1 -R.sub.3 are independently C.sub.1 -C.sub.12 alkyl, C.sub.5 -C.sub.8 cycloalkyl or a heterocycle, C.sub.6 -C.sub.10 aryl or heteroaromatic. R.sub.1 and R.sub.2 or R.sub.1 -R.sub.3 together with the nitrogen atom can also be part of nitrogen containing ring system such as piperidine, morpholine, triethylenediamine, imidazole, or 1,8-diazabicyclo-[5.4.0]undec-7-ene. R.sub.4 is a divalent R.sub.1.Type: GrantFiled: July 28, 1993Date of Patent: February 22, 1994Assignee: Air Products and Chemicals, Inc.Inventors: James D. Nichols, Ann C. L. Savoca, Mark L. Listemann
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Patent number: 5240970Abstract: A method for preparing a polyurethane foam which comprises reacting an organic polyisocyanate and a polyol in the presence of a blowing agent, cell stabilizer and a catalyst composition which comprises a quaternary ammonium carboxylate inner salt having the following formula I ##STR1## where R.sub.1 -R.sub.3 are independently C.sub.1 -C.sub.12 alkyl, C.sub.5 -C.sub.8 cycloalkyl or a heterocycle, C.sub.6 -C.sub.10 aryl or heteroaromatic. R.sub.1 and R.sub.2 or R.sub.1 -R.sub.3 together with the nitrogen atom can also be part of nitrogen containing ring system such as piperdine, morpholine, triethylenediamine, imidazole, or 1,8-diazabicyclo-[5.4.0]-undec-7-ene. R.sub.4 is a divalent R.sub.1.Type: GrantFiled: January 8, 1993Date of Patent: August 31, 1993Assignee: Air Products and Chemicals, Inc.Inventors: James D. Nichols, Ann C. L. Savoca, Mark L. Listemann
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Patent number: 5238894Abstract: An amine-boron composition for catalyzing the urethane reaction, particularly in preparing a polyurethane foam, consisting essentially of the addition product of a tertiary amine and a boron compound of the formulaR.sub.n B(OH).sub.3-nwheren=0 or 1, andR=C.sub.1 -C.sub.8 alkyl, C.sub.5 -C.sub.8 cycloalkyl or C.sub.6 -C.sub.10 aryl.Preferred catalysts are prepared by mixing triethylenediamine or 3-quinuclidinol with boric acid.Type: GrantFiled: June 10, 1992Date of Patent: August 24, 1993Assignee: Air Products and Chemcials, Inc.Inventors: Ann C. L. Savoca, Michael Louie, Mark L. Listemann
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Patent number: 5239112Abstract: The present invention relates to a process for preparing acetals and hemiacetal esters which comprises reacting a vinyl ester and an alcohol in the presence of a solvent having a dielectric constant of between about 15 and about 50 and an effective amount of palladium- or platinum-containing catalyst, in the absence of an active support, under reaction conditions sufficient to form the acetal or hemiacetal ester and recovering the acetal or hemiacetal ester.Type: GrantFiled: November 12, 1992Date of Patent: August 24, 1993Assignee: Air Products and Chemicals, Inc.Inventor: Mark L. Listemann
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Patent number: 5233039Abstract: A method for preparing a polyurethane foam which comprises reacting an organic polyisocyanate and a polyol in the presence of a blowing agent, a cell stabilizer and a catalyst composition consisting essentially of at least one compound of the following formula; ##STR1## where R is hydrogen, c.sub.1 -c.sub.8 alkyl, c.sub.6 -c.sub.10 aryl or c.sub.7 -c.sub.10 aralkyl, and n is 0-3. The preferred catalyst consists essentially of of the compound when n is 0, namely 3-quinuclidinol.Type: GrantFiled: January 30, 1992Date of Patent: August 3, 1993Assignee: Air Products and Chemicals, Inc.Inventors: Mark L. Listemann, Ann C. L. Savoca, Kristen E. Minnich, Kevin R. Lassila
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Patent number: 5212306Abstract: A method for catalyzing the trimerization of an isocyanate and/or the reaction between an isocyanate and an active hydrogen-containing compound, the improvement which comprises employing a catalyst composition consisting essentially of the addition product of a tertiary amine urethane catalyst and a boron compound of the formulaR.sub.n BX.sub.3-nwheren represents 0, 1, 2 or 3,X represents F, Cl, Br, OCOR', OR" or mixtures thereof, andR, R' and R" independently represent C.sub.1 -C.sub.8 alkyl, C.sub.5 -C.sub.8cycloalkyl, C.sub.6 -C.sub.10 aryl or mixtures thereof.Type: GrantFiled: September 18, 1992Date of Patent: May 18, 1993Assignee: Air Products and Chemicals, Inc.Inventors: Ann C. L. Savoca, Mark L. Listemann
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Patent number: 5194609Abstract: A method for preparing a polyurethane foam which comprises reacting an organic polyisocyanate and a polyol in the presence of a blowing agent, a cell stabilizer and a catalyst composition consisting essentially of at least one compound of the following formula: ##STR1## where R is hydrogen, C.sub.1 -C.sub.8 alkyl, C.sub.6 -C.sub.10 aryl or C.sub.7 -C.sub.10 aralkyl, and n is 0-3. The preferred catalyst consists essentially of the compound when n is 0, namely 3-quinuclidinol.Type: GrantFiled: July 21, 1992Date of Patent: March 16, 1993Assignee: Air Products and Chemicals, Inc.Inventors: Ann C. L. Savoca, Mark L. Listemann
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Patent number: 5180851Abstract: This invention relates to an improved process for the formation of N-(l-alkoxyalkyl)amides with coproduction of alkylidene bisamides. The N-(l-alkoxyalkyl)formamides of this invention are prepared by reacting formamide with an acetal or hemiacetal carboxylate ester represented by the formulas below in the presence of a solid acid ion exchange resin wherein the acid groups have been neutralized with an amine compound having a pKa (as the protonated amine in water) from about 4 to 9. The hemiacetal ester is represented by formula I and the acetal is represented by formula II. ##STR1## In the above formulas, R is C.sub.1 -C.sub.8 alkyl, aralkyl or aryl; R.sub.1 and R.sub.2 are C.sub.1 -C.sub.8 alkyl, or aryl; and R.sub.3 is secondary or tertiary alkyl having from 3-8 carbon atoms.Type: GrantFiled: March 21, 1991Date of Patent: January 19, 1993Assignee: Air Products and Chemicals Inc.Inventors: Mark L. Listemann, Robert K. Pinschmidt, Jr.
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Patent number: 5166223Abstract: An amine-boron composition for catalyzing the urethane reaction, particularly in preparing a polyurethane foam, consisting essentially of the addition product of a tertiary amine and a boron compound of the formulaR.sub.n B(OH).sub.3-nwheren=0 or 1, andR=C.sub.1 -C.sub.8 alkyl, C.sub.5 -C.sub.8 cycloalkyl or C.sub.6 -C.sub.10 aryl.Preferred catalysts are prepared by mixing triethylenediamine or 3-quinuclidonol with boric acid.Type: GrantFiled: February 20, 1992Date of Patent: November 24, 1992Assignee: Air Products and Chemicals, Inc.Inventors: Ann C. L. Savoca, Michael Louie, Mark L. Listemann
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Patent number: 5162562Abstract: A process is provided for making metallated and substituted alkynes from feedstocks which include alkadienes containing allenic unsaturation or such alkadienes in a mixture with alkynes having either internal or terminal unsaturation, such as a mixture of propadiene and propyne. This reaction involves an initial step in which the allenic hydrocarbon and any internal alkyne is isomerized and simultaneously the resultant terminal alkynes are metallated with an alkali metal. The reaction is carried out at relatively low temperatures in a suitable inert solvent such as diethylether. When metallation is complete the reaction mixture can be contacted directly with any suitable electrophile, such as a halo silane, for example, chlorotrimethylsilane, and the alkali metal on the terminal alkyne is replaced with the desired substituent. The products thus formed are useful as monomers for preparing polymers having a variety of properties, for example, as asymmetric membranes for gas separation.Type: GrantFiled: May 9, 1991Date of Patent: November 10, 1992Assignee: Air Products and Chemicals, Inc.Inventors: Frederick L. Herman, Ann C. L. Savoca, Mark L. Listemann
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Patent number: 5143944Abstract: A method for preparing a polyurethane foam which comprises reacting an organic polyisocyanate and a polyol in the presence of a blowing agent, a cell stabilizer and a catalyst composition consisting essentially of at least one compound of the following formula: ##STR1## where R is hydrogen, C.sub.1 -C.sub.8 alkyl, C.sub.6 -C.sub.10 aryl or C.sub.7 -C.sub.10 aralkyl, and n is 0-3. The preferred catalyst consists essentially of of the compound when n is 0, namely 3-quinuclidinol.Type: GrantFiled: January 30, 1992Date of Patent: September 1, 1992Assignee: Air Products and Chemicals, Inc.Inventors: Ann C. L. Savoca, Mark L. Listemann
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Patent number: 5144074Abstract: Carboxamides having the structural formula:R.sup.1 CHR.sup.2 CH(OR.sup.3)NHCR.sup.4 Owherein:R.sup.1 is H, C.sub.1 -C.sub.6 alkyl or aryl;R.sup.2 is H, C.sub.1 -C.sub.6 alkyl;R.sup.3 is benzyl, C.sub.1 -C.sub.8 alkyl or hydroxyalkyl; andR.sup.4 is H, C.sub.1 -C.sub.6 alkyl or aryl;are synthesized by reacting an aldehyde having the structural formula: R.sup.1 CHR.sup.2 CHO wherein R.sup.1 and R.sup.2 are as defined above, with an alcohol having the structural formula: R.sup.3 OH, wherein R.sup.3 is as defined above, and an amide having the structural formula: R.sup.4 CONH.sub.2 wherein R.sup.4 is as defined above, in the presence of a strong acid catalyst at a temperature in the range of 0.degree.-200.degree. C.Type: GrantFiled: February 24, 1988Date of Patent: September 1, 1992Assignee: Air Products and Chemicals, Inc.Inventors: Mark L. Listemann, Ronald Pierantozzi, John N. Armor
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Patent number: 5136094Abstract: Secondary formamides having the structural formula:R.sup.1 CHR.sup.2 CH(OR.sup.3)NHCHOwhereinR.sup.1 is H, C.sub.1 -C.sub.6 alkyl or aryl;R.sup.2 is H, or C.sub.1 -C.sub.6 alkyl; andR.sup.3 is benzyl, C.sub.1 -C.sub.8 alkyl or hydroxyalkyl;are synthesized by reacting an acetal having the structural formula: R.sup.1 CHR.sup.2 CH(OR.sup.3).sub.2 wherein R.sup.1, R.sup.2 and R.sup.3 are as defined above, with formamide in the presence of a strong acid catalyst at a temperature in the range of 0.degree.-200.degree. C.Type: GrantFiled: March 10, 1988Date of Patent: August 4, 1992Assignee: Air Products and Chemicals, Inc.Inventors: Mark L. Listemann, Ronald Pierantozzi, Robert K. Pinschmidt, Jr.
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Patent number: 5117056Abstract: This invention relates to an improved process for the formation of N-(1-alkoxyalkyl)amides with coproduction of alkylidene bisamides. The N-(1-alkoxyalkyl)formamides of this invention are prepared by reacting formamide with an acetal or hemiacetal carboxylate ester represented by the formulas: ##STR1## wherein R is C.sub.1 -C.sub.8 alkyl, aralkyl or aryl; R.sub.1 and R.sub.2 are C.sub.1 -C.sub.8 alkyl, or aryl; and R.sub.3 is secondary or tertiary alkyl having from 3-8 carbon atoms.The reaction is carried out in the presence of an acid catalyst such as a strong acid ion exchange resin.Type: GrantFiled: December 21, 1990Date of Patent: May 26, 1992Assignee: Air Products and Chemicals, Inc.Inventors: Mark L. Listemann, Robert K. Pinschmidt, Jr.