Patents by Inventor Steven M. Heilmann
Steven M. Heilmann 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: 5747626Abstract: A pavement marking composition comprises a sulfopoly(ester-urethane) polymer which comprises in its backbone at least one non-terminal arylene or alkylene group comprising a pendant sulfonic acid group or salt thereof, the polymer of said pavement marking composition being terminated by at least one hydrolyzable silyl group. A method of making the composition is disclosed. The pavement marking composition can further comprise at least one of pigments, optical elements, fillers, or other adjuvants. Particularly desirable adjuvants include optical elements, particularly retroreflective elements, skid-resistant particles, and pigments.Type: GrantFiled: March 1, 1996Date of Patent: May 5, 1998Assignee: Minnesota Mining and Manufacturing CompanyInventors: Larry R. Krepski, Steven M. Heilmann, Daniel E. Mickus, Wayne K. Larson, Mark T. Gibson, Mark D. Purgett, Christopher J. Rueb, Howell K. Smith, II
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Patent number: 5679779Abstract: Insoluble supports are prepared which possess high surface areas and efficiently dispersed isocyanate groups. These reactive supports are useful for covalently binding proteins which preferably are enzymes and provide catalysts for conducting organic reactions.Type: GrantFiled: May 23, 1995Date of Patent: October 21, 1997Assignee: Minnesota Mining and ManufacturingInventors: Steven M. Heilmann, Gary J. Drtina, Louis C. Haddad, Frederick W. Hyde, Dean M. Moren, Robert A. Pranis
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Patent number: 5614105Abstract: Insolubilized enzyme particulates are located on the upstream surface of a filtration layer of a filtering element which can be used in a cartridge filter. Employed in a recycling flow reaction system at relatively high flux rates, the cartridges are useful for conducting catalyzed chemical reactions of dissolved solutes, for example, esterifications, isomerizations, oxidations, reductions, and cyclizations.Type: GrantFiled: April 20, 1995Date of Patent: March 25, 1997Assignee: Minnesota Mining and Manufacturing CompanyInventors: Steven M. Heilmann, Gary J. Drtina, Philip D. Eitzman, Louis C. Haddad, Frederick W. Hyde, Todd W. Johnson
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Patent number: 5506279Abstract: The invention provides novel acrylamide functional disubstituted acetyl aryl ketones and a process for their preparation in high yields uncontaminated by difunctional material. The invention further provides photocrosslinkable compositions comprising one or more ethylenically-unsaturated monomers and as photoinitiator the acrylamide functional disubstituted acetyl aryl ketone of the invention. The compositions are useful for the preparation of films and coatings, particularly pressure-sensitive adhesive coatings.Type: GrantFiled: May 3, 1994Date of Patent: April 9, 1996Assignee: Minnesota Mining and Manufacturing CompanyInventors: Gaddam N. Babu, Greggory S. Bennett, Kejian Chen, Steven M. Heilmann, Howell K. Smith, II, Louis E. Winslow
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Patent number: 5486358Abstract: An azlactone-functional thermoplastic composition is disclosed, The composition is a blend of an azlactone-functional composition and a thermoplastic polymer. A method of making azlactone-functional homopolymers by bulk homopolymerization is disclosed, optionally also concurrent or sequential blending of a thermoplastic polymer. A method of blending azlactone-functional compositions and thermoplastic polymers is disclosed. Molded articles coupled with biologically active substances are claimed.Type: GrantFiled: April 3, 1995Date of Patent: January 23, 1996Assignee: Minnesota Mining and Manufacturing CompanyInventors: Patrick L. Coleman, Steven M. Heilmann, Steven L. Kangas, Jerald K. Rasmussen, Richard J. Rolando, Julie B. Stahl
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Patent number: 5478466Abstract: Insolubilized enzyme particulates are located on the upstream surface of a filtration layer of a filtering element which can be used in a cartridge filter. Employed in a recycling flow reaction system at relatively high flux rates, the cartridges are useful for conducting catalyzed chemical reactions of dissolved solutes, for example, esterifications, isomerizations, oxidations, reductions, and cyclizations.Type: GrantFiled: April 21, 1995Date of Patent: December 26, 1995Assignee: Minnesota Mining and Manufacturing CompanyInventors: Steven M. Heilmann, Gary J. Drtina, Philip D. Eitzman, Louis C. Haddad, Frederick W. Hyde, Todd W. Johnson
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Patent number: 5468847Abstract: The invention provides a method of separating a biomacromolecule which comprises the steps of providing a separation system including a filter element which comprises a composite filtration medium, the composite filtration medium comprising a filtration layer on the upstream surface of which are located insoluble stationary phase particulates, the particulates being capable of binding to a biomacromolecule or class of biomacromolecules, a reservoir containing a solution mixture comprising at least one biomacromolecule as solute, and a pump and associated tubing to form a closed loop assembly, and recirculation pumping the solution mixture through the filter cartridge so as to bind the at least one biomacromolecule to the stationary phase particulate so as to form a biomacromolecule:stationary phase particulate product.Type: GrantFiled: March 10, 1994Date of Patent: November 21, 1995Assignee: Minnesota Mining and Manufacturing CompanyInventors: Steven M. Heilmann, Gary J. Drtina, Philip D. Eitzman, Louis C. Haddad, Frederick W. Hyde, Todd W. Johnson, Jerald K. Rassmussen, Michael G. Williams
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Patent number: 5408002Abstract: An azlactone-functional thermoplastic composition is disclosed. The composition is a blend of an azlactone-functional composition and a thermoplastic polymer. A method of making azlactone-functional homopolymers by bulk homopolymerization is disclosed, optionally also concurrent or sequential blending of a thermoplastic polymer. A method of blending azlactone-functional compositions and thermoplastic polymers is disclosed. Molded articles and adduct molded articles formed from the thermoplastic composition are disclosed.Type: GrantFiled: September 9, 1993Date of Patent: April 18, 1995Assignee: Minnesota Mining and Manufacturing CompanyInventors: Patrick L. Coleman, Steven M. Heilmann, Steven L. Kangas, Robert H. Menzies, Jerald K. Rasmussen, Richard J. Rolando, Jennifer J. Sahlin, Julie B. Stahl
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Patent number: 5403902Abstract: Azlactone-functional polymer supports are useful reactive supports for the attachment of functional materials to provide novel adduct beads. The adduct beads are useful as complexing agents, catalysts, polymeric reagents, chromatographic supports, and as enzyme- or other biologically active supports. Novel carboxylate-functional polymer beads, are intermediates in the preparation of the azlactone-functional beads.Azlactone-functional supports have units of the formula: ##STR1## wherein R.sup.1 is H or CH.sub.3,R.sup.2 and R.sup.3 independently can be an alkyl group having 1 to 14 carbon atoms, a cycloalkyl group having 3 to 14 carbon atoms, an aryl group having 5 to 12 ring atoms, an arenyl group having 6 to 26 carbon and 0 to 3 S, N, and nonperoxidic O heteroatoms, or R.sup.2 and R.sup.3 taken together with the carbon to which they are joined can form a carbocyclic ring containing 4 to 12 ring atoms, andn is an integer 0 or 1, the azlactone functional supports having 0.Type: GrantFiled: January 18, 1994Date of Patent: April 4, 1995Assignee: Minnesota Mining and Manufacturing CompanyInventors: Steven M. Heilmann, Jerald K. Rasmussen, Larry R. Krepski, Dean S. Milbrath, Patrick L. Coleman, Margaret M. Walker
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Patent number: 5336742Abstract: Azlactone-functional polymer supports are useful reactive supports for the attachment of functional materials to provide novel adduct beads. The adduct beads are useful as complexing agents, catalysts, polymeric reagents, chromatographic supports, and as enzyme- or other biologically active supports. Novel carboxylate-functional polymer beads, are intermediates in the preparation of the azlactone-functional beads.Azlactone-functional supports have units of the formula: ##STR1## wherein R.sup.1 is H or CH.sub.3,R.sup.2 and R.sup.3 independently can be an alkyl group having 1 to 14 carbon atoms, a cycloalkyl group having 3 to 14 carbon atoms, an aryl group having 5 to 12 ring atoms, an arenyl group having 6 to 26 carbon and 0 to 3 S, N, and nonperoxidic O heteroatoms, or R.sup.2 and R.sup.3 taken together with the carbon to which they are joined can form a carbocyclic ring containing 4 to 12 ring atoms, andn is an integer 0 or 1,the azlactone functional supports having 0.Type: GrantFiled: June 1, 1992Date of Patent: August 9, 1994Assignee: Minnesota Mining and Manufacturing CompanyInventors: Steven M. Heilmann, Jerald K. Rasmussen, Larry R. Krepski, Dean S. Milbrath, Patrick L. Coleman
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Patent number: 5314975Abstract: The present invention provides novel fluorinated acrylamide silane monomers which are useful as adhesion promoting agents in optical fiber cladding compositions. Polymerization of the novel monomers, optionally in the presence compatible ethylenically-unsaturated monomers, provides homopolymers and copolymers which are useful as non-wetting agents.Type: GrantFiled: January 28, 1993Date of Patent: May 24, 1994Assignee: Minnesota Mining and Manufacturing CompanyInventors: Stefan A. Babirad, Dean M. Moren, Steven M. Heilmann, Larry R. Krepski, Jerald K. Rasmussen
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Patent number: 5292840Abstract: Azlactone-functional polymer supports are useful reactive supports for the attachment of functional materials to provide novel adduct beads. The adduct beads are useful as complexing agents, catalysts, polymeric reagents, chromatographic supports, and as enzyme- or other biologically active supports. Novel carboxylate-functional polymer beads, are intermediates in the preparation of the azlactone-functional beads.Azlactone-functional supports have units of the formula: ##STR1## wherein R.sup.1 is H or CH.sub.3,R.sup.2 and R.sup.3 independently can be an alkyl group having 1 to 14 carbon atoms, a cycloalkyl group having 3 to 14 carbon atoms, an aryl group having 5 to 12 ring atoms, an arenyl group having 6 to 26 carbon and 0 to 3 S, N, and nonperoxidic O heteroatoms, or R.sup.2 and R.sup.3 taken together with the carbon to which they are joined can form a carbocyclic ring containing 4 to 12 ring atoms, andn is an integer 0 or 1,the azlactone functional supports having 0.Type: GrantFiled: April 10, 1989Date of Patent: March 8, 1994Assignee: Minnesota Mining and Manufacturing CompanyInventors: Steven M. Heilmann, Jerald K. Rasmussen, Larry R. Krepski, Dean S. Milbrath, Patrick L. Coleman, Margaret M. Walker
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Patent number: 5292514Abstract: Azlactone-functional substrates, (especially hydrogels), mammalian body implants, and methods of making and using them are disclosed. The azlactone-functional substrates are the reaction product of substrates having azlactone-reactive nucleophilic surfaces and a multi-functional azlactone composition having at least two azlactone moieties, where at least one moiety covalently couples to the azlactone-reactive nucleophilic surface and at least one moiety remains available for further nucleophilic reaction, such as with a biologically active material. A preferred use of azlactone-functional hydrogel is as the optical element of a corneal prosthesis which enhances epithethial cell growth.Type: GrantFiled: June 24, 1992Date of Patent: March 8, 1994Assignee: Minnesota Mining and Manufacturing CompanyInventors: John T. Capecchi, Steven M. Heilmann, Larry R. Krepski, Oh-Seung Kwon, David B. Olson
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Patent number: 5268473Abstract: Azlactone-functional Michael adducts are disclosed which are the Michael reaction products of 2-alkenyl azlactones and Michael donors selected from carbon and nitrogen nucleophiles. Reaction products which contain a plurality of azlactone groups are useful as step growth monomers in adhesives, sealants, and coatings.Type: GrantFiled: June 26, 1992Date of Patent: December 7, 1993Assignee: Minnesota Mining and Manufacturing CompanyInventors: Dean M. Moren, Steven M. Heilmann, Larry R. Krepski, Jerald K. Rasmussen
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Patent number: 5239013Abstract: Organic groups covalently bound to a polymer backbone provide second or third order nonlinear susceptibilities to the polymer. In another aspect, a method is disclosed for providing the novel polymers of the invention. Polymers of the invention can be directionally oriented to provide useful optically nonlinear media for use in nonlinear optical devices such as optical switches or light modulation devices.Type: GrantFiled: September 29, 1992Date of Patent: August 24, 1993Assignee: Minnesota Mining and Manufacturing CompanyInventors: Cecil V. Francis, Steven M. Heilmann, Larry R. Krepski, Jerald K. Rasmussen
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Patent number: 5216084Abstract: Organic groups covalently bound to a polymer backbone provide second or third order nonlinear susceptibilities to the polymer. In another aspect, a method is disclosed for providing the novel polymers of the invention. Polymers of the invention can be directionally oriented to provide useful optically nonlinear media for use in nonlinear optical devices such as optical switches or light modulation devices.Type: GrantFiled: May 11, 1990Date of Patent: June 1, 1993Assignee: Minnesota Mining and Manufacturing CompanyInventors: Cecil V. Francis, Steven M. Heilmann, Larry R. Krepski, Jerald K. Rasmussen
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Patent number: 5210248Abstract: The present invention provides novel fluorinated acrylamide silane monomers which are useful as adhesion promoting agents in optical fiber cladding compositions. Polymerization of the novel monomers, optionally in the presence compatible ethylenically-unsaturated monomers, provides homopolymers and copolymers which are useful as non-wetting agents.Type: GrantFiled: August 26, 1991Date of Patent: May 11, 1993Assignee: Minnesota Mining and Manufacturing CompanyInventors: Stefan A. Babirad, Dean M. Moren, Steven M. Heilmann, Larry R. Krepski, Jerald K. Rasmussen
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Patent number: 5157108Abstract: Compounds containing alpha-amidoacetyle linkages are described that are thermally labile and yield nucleophilic and azlactone products. Nucleophiles are useful as curing agents for epoxy resin sealants and adhesives and azlactones are useful in crosslinking systems for polymers.Type: GrantFiled: December 12, 1989Date of Patent: October 20, 1992Assignee: Minnesota Mining and Manufacturing CompanyInventors: Larry R. Krepski, Steven M. Heilmann, Dean M. Moren, Jerald K. Rasmussen
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Patent number: RE34348Abstract: Novel fluorinated, acrylamide monomers are prepared from 2-alkenyl azlactones reacted with fluorinated alcohols. The novel monomers have the formula ##STR1## wherein R.sup.1 and R.sup.6 are independently hydrogen or methyl; R.sup.2 and R.sup.3 independently can be an alkyl, cycloalkyl, or aryl group, or R.sup.2 and R.sup.3 taken together with the carbon to which they are joined can form a carbocyclic ring containing 4 to 12 ring atoms;R.sup.4 and R.sup.5 are independently hydrogen or lower alkyl;a is 0 or 1;b is 1 or 2;X is a single bond, CH.sub.2, CH.sub.2 OCH.sub.2, and CH.sub.2 CH.sub.2 OCH.sub.2 ; andR.sub.f is a substantially perfluorinated alkyl, cycloalkyl, or aryl group when b is 1 and perfluorinated alkylene when b is 2.Novel polymers and copolymers can be prepared from the monomers of the invention.Type: GrantFiled: October 30, 1992Date of Patent: August 17, 1993Assignee: Minnesota Mining and Manufacturing CompanyInventors: Steven M. Heilmann, Larry R. Krepski, Dean M. Moren, Jerald K. Rasmussen, Howell K. Smith, II
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Patent number: RE34652Abstract: Novel fluorinated, acrylamide monomers are prepared from 2-alkenyl azlactones reacted with fluorinated alcohols. The novel monomers have the formula ##STR1## wherein R.sup.1 and R.sup.6 are independently hydrogen or methyl;R.sup.2 and R.sup.3 independently can be an alkyl, cycloalkyl, or aryl group, or R.sup.2 and R.sup.3 taken together with the carbon to which they are joined can form a carbocyclic ring containing 4 to 12 ring atoms;R.sup.4 and R.sup.5 are independently hydrogen or lower alkyl;a is 0 or 1;b is 1 or 2;X is a single bond, CH.sub.2, CH.sub.2 OCH.sub.2, and CH.sub.2 CH.sub.2 OCH.sub.2 ; andR.sub.F is a substantially perfluorinated alkyl, cycloalkyl, or aryl group when b is 1 and perfluorinated alkylene when b is 2.Novel polymers and copolymers can be prepared from the monomers of the invention.Type: GrantFiled: June 3, 1992Date of Patent: June 28, 1994Assignee: Minnesota Mining and Manufacturing CompanyInventors: Steven M. Heilmann, Larry R. Krepski, Dean M. Moren, Jerald K. Rasmussen, Howell K. Smith, II