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).

  • Publication number: 20200208008
    Abstract: 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: Application
    Filed: March 5, 2020
    Publication date: July 2, 2020
    Inventors: Rajan B. Bodkhe, Michael C. Coddington, Travis Q. Gregar, Vanessa A. Iiams Nelson, Alexander J. Kugel, Leon Levitt
  • Publication number: 20170218223
    Abstract: 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: Application
    Filed: July 31, 2015
    Publication date: August 3, 2017
    Applicant: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Rajan B. Bodkhe, Michael C. Coddington, Travis Q. Gregar, Vanessa A. Iiams Nelson, Alexander J. Kugel, Leon Levitt
  • Publication number: 20150368508
    Abstract: 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: Application
    Filed: January 31, 2014
    Publication date: December 24, 2015
    Inventors: Rajan B. Bodkhe, Leon Levitt, Craig M. Moss
  • Publication number: 20150267076
    Abstract: 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: Application
    Filed: October 2, 2013
    Publication date: September 24, 2015
    Inventors: Rajan B. Bodkhe, Stuart E. Fores, Leon Levitt, Craig M. Moss, Michael A. Johnson
  • Patent number: 8882945
    Abstract: 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: Grant
    Filed: February 18, 2014
    Date of Patent: November 11, 2014
    Assignee: 3M Innovative Properties Company
    Inventors: Guy D. Joly, Leon Levitt, Vivek Bharti
  • Publication number: 20140162517
    Abstract: 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: Application
    Filed: February 18, 2014
    Publication date: June 12, 2014
    Applicant: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Guy D. Joly, Leon Levitt, Vivek Bharti
  • Patent number: 8697789
    Abstract: 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: Grant
    Filed: June 5, 2012
    Date of Patent: April 15, 2014
    Assignee: 3M Innovative Properties Company
    Inventors: Guy D. Joly, Sarah J. Moench, Leon Levitt, Babu N. Gaddam
  • Patent number: 8663407
    Abstract: 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: Grant
    Filed: October 27, 2011
    Date of Patent: March 4, 2014
    Assignee: 3M Innovative Properties Company
    Inventors: Guy D. Joly, Leon Levitt, Vivek Bharti
  • Publication number: 20130324651
    Abstract: 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: Application
    Filed: June 5, 2012
    Publication date: December 5, 2013
    Inventors: Guy D. Joly, Sarah J. Moench, Leon Levitt, Babu N. Gaddam
  • Patent number: 8277922
    Abstract: 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: Grant
    Filed: August 3, 2007
    Date of Patent: October 2, 2012
    Assignee: 3M Innovative Properties Company
    Inventors: Scott J. Tuman, James J. Kobe, Leon Levitt
  • Publication number: 20120118469
    Abstract: 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: Application
    Filed: October 27, 2011
    Publication date: May 17, 2012
    Inventors: Guy D. Joly, Leon Levitt, Vivek Bharti
  • Publication number: 20120027990
    Abstract: 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: Application
    Filed: October 12, 2011
    Publication date: February 2, 2012
    Inventors: James J. Kobe, Leon Levitt
  • Publication number: 20080035173
    Abstract: 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: Application
    Filed: August 3, 2007
    Publication date: February 14, 2008
    Inventors: SCOTT TUMAN, JAMES KOBE, LEON LEVITT
  • Patent number: 7309519
    Abstract: 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: Grant
    Filed: October 17, 2001
    Date of Patent: December 18, 2007
    Assignee: 3M Innovative Properties Company
    Inventors: Matthew T. Scholz, Margie A. Crone, Nicholas R. Baumann, Leon Levitt
  • Patent number: 6962635
    Abstract: 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: Grant
    Filed: March 29, 2001
    Date of Patent: November 8, 2005
    Assignee: 3M Innovative Properties Company
    Inventors: Scott J. Tuman, David L. Seidel, Leon Levitt, Brandon T. Berg
  • Patent number: 6904615
    Abstract: 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: Grant
    Filed: May 12, 2003
    Date of Patent: June 14, 2005
    Assignee: 3M Innovative Properties Company
    Inventors: James J. Kobe, Leon Levitt
  • Publication number: 20050084647
    Abstract: 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: Application
    Filed: October 12, 2004
    Publication date: April 21, 2005
    Inventors: Robert Menzies, Jason Edgar, Scott Tuman, David Seidel, Robert Maki, John Riedel, Eugene Joseph, Leon Levitt, Brandon Berg
  • Patent number: 6835256
    Abstract: 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: Grant
    Filed: October 29, 2002
    Date of Patent: December 28, 2004
    Assignee: 3M Innovative Properties Company
    Inventors: 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
  • Publication number: 20030203155
    Abstract: 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: Application
    Filed: May 12, 2003
    Publication date: October 30, 2003
    Applicant: 3M Innovative Properties Company
    Inventors: James J. Kobe, Leon Levitt
  • Patent number: 6610382
    Abstract: 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: Grant
    Filed: August 11, 2000
    Date of Patent: August 26, 2003
    Assignee: 3M Innovative Properties Company
    Inventors: James J. Kobe, Leon Levitt