Patents by Inventor Leon Levitt
Leon Levitt 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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Publication number: 20200208008Abstract: There is provided cured coating compositions derived from a one-part, moisture curable composition comprising (a) a polyoxyalkylene polymer having at least one end group derived from an alkoxy silane, and (b) a plasticizer selected from at least one of linear or branched alkyl benzoate having between 8 and 14 carbon atoms in the alkyl chain, and combinations thereof; where the cured coating composition passes ASTM D-1970. There are also provided articles and films made using and methods for using these cured coating compositions.Type: ApplicationFiled: March 5, 2020Publication date: July 2, 2020Inventors: Rajan B. Bodkhe, Michael C. Coddington, Travis Q. Gregar, Vanessa A. Iiams Nelson, Alexander J. Kugel, Leon Levitt
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Publication number: 20170218223Abstract: There is provided cured coating compositions derived from a one-part, moisture curable composition comprising (a) a polyoxyalkylene polymer having at least one end group derived from an alkoxy silane, and (b) a plasticizer selected from at least one of linear or branched alkyl benzoate having between 8 and 14 carbon atoms in the alkyl chain, and combinations thereof; where the cured coating composition passes ASTM D-1970. There are also provided articles and films made using and methods for using these cured coating compositions.Type: ApplicationFiled: July 31, 2015Publication date: August 3, 2017Applicant: 3M INNOVATIVE PROPERTIES COMPANYInventors: Rajan B. Bodkhe, Michael C. Coddington, Travis Q. Gregar, Vanessa A. Iiams Nelson, Alexander J. Kugel, Leon Levitt
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Publication number: 20150368508Abstract: There is provided a one-part, moisture curable coating composition comprising: a silyl terminated polymer, wherein the silyl terminated polymer is polyoxyalkylene polymer having at least one end group derived from an alkoxy silane, and a polyether plasticizer, and further the polyether plasticizer has a number average molecular weight between 300 g/mol to 600 g/mol. There are also provided articles and films made using and methods for using these coating compositions.Type: ApplicationFiled: January 31, 2014Publication date: December 24, 2015Inventors: Rajan B. Bodkhe, Leon Levitt, Craig M. Moss
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Publication number: 20150267076Abstract: There is provided a coating composition comprising: (a) a one part moisture cure polyurethane comprising: an aromatic polyurethane prepolymer having backbone derived from polyether and at least one aromatic end group, wherein the coating composition comprises about 8 wt % to 90 wt % polyurethane prepolymer based on the total weight of the coating composition; (b) 2 to 60 wt % of an inorganic filler based on the total weight of the coating composition; and (c) 2 to 60 wt % of a solvent based on the total weight of the coating composition, wherein the coating composition, when cured, is a water-vapor semi-permeable, air and water barrier film. There is also provided a cured coating composition and articles made therefrom.Type: ApplicationFiled: October 2, 2013Publication date: September 24, 2015Inventors: Rajan B. Bodkhe, Stuart E. Fores, Leon Levitt, Craig M. Moss, Michael A. Johnson
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Patent number: 8882945Abstract: Adhesive compositions are described comprising a) a non-functional isobutylene (co)polymer, b) an amine-functional poly(isobutylene) polymer, optionally an acid-functional (meth)acrylate copolymer, and optionally a tackifier.Type: GrantFiled: February 18, 2014Date of Patent: November 11, 2014Assignee: 3M Innovative Properties CompanyInventors: Guy D. Joly, Leon Levitt, Vivek Bharti
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Publication number: 20140162517Abstract: Adhesive compositions are described comprising a) a non-functional isobutylene (co)polymer, b) an amine-functional poly(isobutylene) polymer, optionally an acid-functional (meth)acrylate copolymer, and optionally a tackifier.Type: ApplicationFiled: February 18, 2014Publication date: June 12, 2014Applicant: 3M INNOVATIVE PROPERTIES COMPANYInventors: Guy D. Joly, Leon Levitt, Vivek Bharti
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Patent number: 8697789Abstract: Presently described is an adhesive composition comprising at least one isobutylene polymer and an alkyl amine adhesion promoting agent. The alkyl amine is unreactive with respect to the isobutylene polymer. In favored embodiments, the alkyl amine adhesion promoting agent comprises an alkyl group having 6-24 carbon atoms. Further, the isobutylene polymer is a non-halogenated copolymer or homopolymer. Also described are adhesive articles a pressure sensitive adhesive, as described herein on a backing. The adhesive is particularly suitable for articles intended for use in a wet environment such as kitchen or bath articles.Type: GrantFiled: June 5, 2012Date of Patent: April 15, 2014Assignee: 3M Innovative Properties CompanyInventors: Guy D. Joly, Sarah J. Moench, Leon Levitt, Babu N. Gaddam
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Patent number: 8663407Abstract: Adhesive compositions are described comprising a) a non-functional isobutylene (co)polymer, b) an amine-functional poly(isobutylene) polymer, optionally an acid-functional (meth)acrylate copolymer, and optionally a tackifier.Type: GrantFiled: October 27, 2011Date of Patent: March 4, 2014Assignee: 3M Innovative Properties CompanyInventors: Guy D. Joly, Leon Levitt, Vivek Bharti
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Publication number: 20130324651Abstract: Presently described is an adhesive composition comprising at least one isobutylene polymer and an alkyl amine adhesion promoting agent. The alkyl amine is unreactive with respect to the isobutylene polymer. In favored embodiments, the alkyl amine adhesion promoting agent comprises an alkyl group having 6-24 carbon atoms. Further, the isobutylene polymer is a non-halogenated copolymer or homopolymer. Also described are adhesive articles a pressure sensitive adhesive, as described herein on a backing The adhesive is particularly suitable for articles intended for use in a wet environment such as kitchen or bath articles.Type: ApplicationFiled: June 5, 2012Publication date: December 5, 2013Inventors: Guy D. Joly, Sarah J. Moench, Leon Levitt, Babu N. Gaddam
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Patent number: 8277922Abstract: A stem web is disclosed that comprises a backing layer having a first surface and a second surface, and an array of 600 to 20000 upstanding stems projecting from the first surface of the backing. The stems comprise a height from 0.3 and 2.0 millimeters and a shore hardness less than 90A. In one embodiment, the stem web further comprises a reinforcing layer secured to the second surface. In one embodiment, the stem web is secured to a tool to be passed across a surface to be cleaned to capture lint and hair.Type: GrantFiled: August 3, 2007Date of Patent: October 2, 2012Assignee: 3M Innovative Properties CompanyInventors: Scott J. Tuman, James J. Kobe, Leon Levitt
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Publication number: 20120118469Abstract: Adhesive compositions are described comprising a) a non-functional isobutylene (co)polymer, b) an amine-functional poly(isobutylene) polymer, optionally an acid-functional (meth)acrylate copolymer, and optionally a tackifier.Type: ApplicationFiled: October 27, 2011Publication date: May 17, 2012Inventors: Guy D. Joly, Leon Levitt, Vivek Bharti
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Publication number: 20120027990Abstract: There is provided an article having frictional properties that do not substantially degrade when water is present, comprising a backing layer having a first surface with an array of at least 100 flexible, upstanding stems per square inch, that occupy no greater than 24.8% of a total area of the first surface of the backing layer, molded at least partially integrally to the first surface, each stem having an aspect ratio of at least 1.25 and having at least a portion of the stem formed of an elastomeric material having a Shore hardness of less than about 90 A, wherein the first surface has a static coefficient of friction when dry of at least 0.6 and a static coefficient of friction when wet within 20% of the static coefficient of friction when dry.Type: ApplicationFiled: October 12, 2011Publication date: February 2, 2012Inventors: James J. Kobe, Leon Levitt
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Publication number: 20080035173Abstract: A stem web is disclosed that comprises a backing layer having a first surface and a second surface, and an array of 600 to 20000 upstanding stems projecting from the first surface of the backing. The stems comprise a height from 0.3 and 2.0 millimeters and a shore hardness less than 90A. In one embodiment, the stem web further comprises a reinforcing layer secured to the second surface. In one embodiment, the stem web is secured to a tool to be passed across a surface to be cleaned to capture lint and hair.Type: ApplicationFiled: August 3, 2007Publication date: February 14, 2008Inventors: SCOTT TUMAN, JAMES KOBE, LEON LEVITT
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Patent number: 7309519Abstract: Friction control articles for use in healthcare applications, the articles generally comprising a backing Layer having a first surface and a second surface, where projecting from the first surface of the backing layer is an array of stems, wherein at least a portion of the exterior surface of the stems comprises an elastomeric material. Also disclosed are friction control articles having a coefficient of friction when dry along at least a portion of the first surface of at least 0.6. Multilayered and dual-sided friction control articles are also provided.Type: GrantFiled: October 17, 2001Date of Patent: December 18, 2007Assignee: 3M Innovative Properties CompanyInventors: Matthew T. Scholz, Margie A. Crone, Nicholas R. Baumann, Leon Levitt
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Patent number: 6962635Abstract: Method for making a stem web material having a plurality of stems extending from discrete regions (patches or stripes) of the web, comprising: a) providing a web (e.g. nonwoven, woven or knit textile fabric; paper; microporous membrane, polymer film; etc.); b) providing discrete quantities of a polymer at a temperature above its softening point or in molten state; c) fusing the discrete quantities of polymer to the web; and d) forming a plurality of stems in each of the discrete quantities of polymer material. The stems can be formed by pressing the web on which the patches or stripes of polymer are deposited against a tool having a surface with a plurality of stem-forming holes. The stems can be given enlarged ends by bringing the surface of the stem web close to a heated surface.Type: GrantFiled: March 29, 2001Date of Patent: November 8, 2005Assignee: 3M Innovative Properties CompanyInventors: Scott J. Tuman, David L. Seidel, Leon Levitt, Brandon T. Berg
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Patent number: 6904615Abstract: A friction control article including a backing layer having a first surface with an array of at least 100 upstanding stems per square inch and a second surface. At least a portion of the upstanding stems is an elastomeric material and the stems have an aspect ratio of at least 1.25. The first surface has a static coefficient of friction when dry of at least 0.6 and a static coefficient of friction when wet within 20% of the static coefficient of friction when dry. The first surface has a peel strength and a tensile strength of substantially zero when engaged with another slip control article. The first surface has a relatively high shear strength when engaged with another slip control article. The high shear forces are due primarily to the frictional properties of the elastomeric materials, not a mechanical interlock of the stems, such as on a mechanical fastener.Type: GrantFiled: May 12, 2003Date of Patent: June 14, 2005Assignee: 3M Innovative Properties CompanyInventors: James J. Kobe, Leon Levitt
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Publication number: 20050084647Abstract: A laminated composite suitable for use in medical products such as tapes and wraps. The composite includes, for example, a first nonwoven fiber layer, an elastic layer, a melt blown adhesive fiber layer, and a second nonwoven fiber layer. A scrim layer serves as a deadstop, or stretch limit, to prevent over stretching. The non-woven fiber layer(s) and/or the scrim layer form suitable loops for a hook and loop fastening system. The scrim layer in some embodiments is employed to make the composite finger tearable. The melt blown adhesive layer, nonwoven web layer and elastic layer form a breathable, porous elastic composite. Methods of manufacturing the composite are also disclosed.Type: ApplicationFiled: October 12, 2004Publication date: April 21, 2005Inventors: Robert Menzies, Jason Edgar, Scott Tuman, David Seidel, Robert Maki, John Riedel, Eugene Joseph, Leon Levitt, Brandon Berg
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Patent number: 6835256Abstract: A laminated composite suitable for use in medical products such as tapes and wraps. The composite includes, for example, a first nonwoven fiber layer, an elastic layer, a melt blown adhesive fiber layer, and a second nonwoven fiber layer. A scrim layer serves as a deadstop, or stretch limit, to prevent over stretching. The non-woven fiber layer(s) and/or the scrim layer form suitable loops for a hook and loop fastening system. The scrim layer in some embodiments is employed to make the composite finger tearable. The melt blown adhesive layer, nonwoven web layer and elastic layer form a breathable, porous elastic composite. Methods of manufacturing the composite are also disclosed.Type: GrantFiled: October 29, 2002Date of Patent: December 28, 2004Assignee: 3M Innovative Properties CompanyInventors: Robert H. Menzies, Jason L. Edgar, Scott J. Tuman, David L. Seidel, Robert J. Maki, John E. Riedel, Eugene G. Joseph, Leon Levitt, Brandon T. Berg
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Publication number: 20030203155Abstract: A friction control article including a backing layer having a first surface with an array of at least 100 upstanding stems per square inch and a second surface. At least a portion of the upstanding stems is an elastomeric material and the stems have an aspect ratio of at least 1.25. The first surface has a static coefficient of friction when dry of at least 0.6 and a static coefficient of friction when wet within 20% of the static coefficient of friction when dry. The first surface has a peel strength and a tensile strength of substantially zero when engaged with another slip control article. The first surface has a relatively high shear strength when engaged with another slip control article. The high shear forces are due primarily to the frictional properties of the elastomeric materials, not a mechanical interlock of the stems, such as on a mechanical fastener.Type: ApplicationFiled: May 12, 2003Publication date: October 30, 2003Applicant: 3M Innovative Properties CompanyInventors: James J. Kobe, Leon Levitt
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Patent number: 6610382Abstract: A friction control article including a backing layer having a first surface with an array of at least 100 upstanding stems per square inch and a second surface. At least a portion of the upstanding stems is an elastomeric material and the stems have an aspect ratio of at least 1.25. The first surface has a static coefficient of friction when dry of at least 0.6 and a static coefficient of friction when wet within 20% of the static coefficient of friction when dry. The first surface has a peel strength and a tensile strength of substantially zero when engaged with another slip control article. The first surface has a relatively high shear strength when engaged with another slip control article. The high shear forces are due primarily to the frictional properties of the elastomeric materials, not a mechanical interlock of the stems, such as on a mechanical fastener.Type: GrantFiled: August 11, 2000Date of Patent: August 26, 2003Assignee: 3M Innovative Properties CompanyInventors: James J. Kobe, Leon Levitt