Patents by Inventor Mahfuza B. Ali

Mahfuza B. Ali 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: 20170007464
    Abstract: An antimicrobial pressure-sensitive adhesive (PSA). The PSA system can include an antimicrobial polymer having a plurality of pendant groups. The plurality of pendant groups can include (i) a first pendant group comprising a nonpolar compound, (ii) a second pendant group comprising a quaternary ammonium compound, and (iii) a third pendant group different from the first pendant group or the second pendent group, wherein the third pendant group provides inter-reactivity, such that the antimicrobial polymer can include one or more intermolecular interactions. The antimicrobial polymer can be free of non-ionic hydrophilic moieties. The PSA system can have a glass transition temperature Tg ranging from 0 to 50 degrees C.
    Type: Application
    Filed: December 16, 2014
    Publication date: January 12, 2017
    Applicant: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: JUNKANG J. LIU, DEENA M. CONRAD-VLASAK, MAHFUZA B. ALI, NARINA Y. STEPANOVA, ELIZABETH E. JOHNSON
  • Publication number: 20160340457
    Abstract: Additives comprising a low surface energy group and one or more hydroxyl groups are described.
    Type: Application
    Filed: August 2, 2016
    Publication date: November 24, 2016
    Inventors: Thomas P. Klun, Mahfuza B. Ali, Richard J. Pokorny, Daniel R. Cremons, Michelle L. Toy
  • Publication number: 20160318287
    Abstract: Described herein is composite article comprising a substrate; and on at least one face of the substrate a multilayered coating disposed thereon.
    Type: Application
    Filed: December 16, 2014
    Publication date: November 3, 2016
    Inventors: Kui Chen-Ho, Caroline M. Ylitalo, Yu Yang, Yongshang Lu, Alan L. Levin, Hyacinth L. Lechuga, Steven H. Kong, Suresh I. Iyer, Ingrid N. Haugan, Mahfuza B. Ali
  • Patent number: 9441135
    Abstract: Coating compositions are described comprising a non-ionic surfactant and an additive wherein the additive comprises a low surface energy group and one or more hydroxyl groups. The cured coating can exhibit reduced fingerprint visibility and low cellulose surface attraction. Also described are copolymer compositions useful as additives.
    Type: Grant
    Filed: May 30, 2013
    Date of Patent: September 13, 2016
    Inventors: Thomas P. Klun, Mahfuza B. Ali, Richard J. Pokorny, Daniel R. Cremons, Michelle L. Toy
  • Publication number: 20160120176
    Abstract: Antimicrobial foams and methods of making same. The antimicrobial foams can include a polymeric foam having a wet-out time of at least 250 sec; and a coating comprising an antimicrobial material. The antimicrobial material can include a quaternary ammonium compound, and the antimicrobial material can be covalently bound to the foam. The antimicrobial foam can include at least 0.25 parts by weight of quarternary ammonium compound per 100 parts by dry weight of the foam. The method can include providing the polymeric foam and an antimicrobial material comprising a quaternary ammonium precursor. The method can further include combining the foam and the quaternary ammonium precursor to form a combination; and heating the combination to a temperature of at least 40° C. to form an antimicrobial foam comprising a quaternary ammonium compound covalently bound to the foam.
    Type: Application
    Filed: June 25, 2014
    Publication date: May 5, 2016
    Applicant: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Shilpi K. Sanghi, Mahfuza B. Ali
  • Patent number: 9296847
    Abstract: Ligand functionalized substrates, methods of making ligand functionalized substrates, and methods of using functionalized substrates are disclosed.
    Type: Grant
    Filed: January 20, 2015
    Date of Patent: March 29, 2016
    Assignee: 3M Innovative Properties Company
    Inventors: Jerald K. Rasmussen, Catherine A. Bothof, Kannan Seshadri, Erin A. Satterwhite, Robert T. Fitzsimons, Jr., James L. Hembre, Mahfuza B. Ali
  • Patent number: 9260612
    Abstract: An antistatic article having an antistatic layer disposed on a substrate is disclosed herein. The antistatic layer is formed from a cationic copolymer, a non-cationic (meth)acrylic polymer, and a crosslinking agent. The cationic copolymer consists essentially of a cationic monomer, a hydrophobic monomer, a crosslinkable monomer, and an optional nitrogen-containing monomer. The substrate may comprise an optical film such as a multilayer optical film. Methods for making the antistatic article and display devices containing the antistatic article are also disclosed.
    Type: Grant
    Filed: April 24, 2013
    Date of Patent: February 16, 2016
    Assignee: 3M Innovative Properties Company
    Inventors: Mark J. Pellerite, Mahfuza B. Ali, Eileen M. Haus, Gregory F. King, James E. Lockridge, Hang K. Loi, Jeffrey A. Peterson
  • Patent number: 9247736
    Abstract: A multi-layer film for reducing microbial contamination on a surface. The multi-layer film can include a core layer having a first surface and a second surface opposite the first surface, an adhesive layer disposed adjacent the first surface of the core layer, and an antimicrobial layer disposed adjacent the second surface. The antimicrobial layer can include a cross-linked matrix and an antimicrobial agent dispersed within the cross-linked matrix, where the cross-linked matrix is derived from a polymerizable precursor comprising a material selected from the group consisting of a polymerizable monomer, a polymerizable polymer having a molecular weight of about 1,000 or less, and combinations thereof.
    Type: Grant
    Filed: December 14, 2006
    Date of Patent: February 2, 2016
    Assignee: 3M Innovative Properties Company
    Inventors: Caroline M. Ylitalo, Mahfuza B. Ali, Christopher B. Walker, Jr., Gerald R. A. Hofmann, Matthew T. Scholz, Alphonsus V. Pocius, Linda K. M. Olson
  • Publication number: 20150224537
    Abstract: A filler compound containing a positively charged polymer that includes (meth)acrylate monomer units having an alkylammonium functionality.
    Type: Application
    Filed: January 21, 2015
    Publication date: August 13, 2015
    Inventors: Liana V. Palaikis, Mahfuza B. Ali
  • Publication number: 20150175812
    Abstract: The disclosure provides polymers having antimicrobial activity and articles with the polymers coated thereon. The polymers include a first pendant group comprising a first quaternary ammonium component, a second pendant group comprising a nonpolar component, and a third pendant group comprising an organosilane component. The disclosure also includes methods of coating articles with the antimicrobial polymers. The methods further include the use of adhesion-promoting reagents.
    Type: Application
    Filed: March 6, 2015
    Publication date: June 25, 2015
    Inventors: MAHFUZA B. ALI, NAIYONG JING, VALERI LIRINE, PRADNA V. NAGARKAR, CAROLINE M. YLITALO, NANCY S. LENNHOFF, NARINA Y. STEPANOVA
  • Publication number: 20150166703
    Abstract: Ligand functionalized substrates, methods of making ligand functionalized substrates, and methods of using functionalized substrates are disclosed.
    Type: Application
    Filed: January 20, 2015
    Publication date: June 18, 2015
    Inventors: Jerald K. Rasmussen, Catherine A. Bothof, Kannan Seshadri, Erin A. Satterwhite, Robert T. Fitzsimons, JR., James L. Hembre, Mahfuza B. Ali
  • Publication number: 20150126654
    Abstract: Coating compositions are described comprising a non-ionic surfactant and an additive wherein the additive comprises a low surface energy group and one or more hydroxyl groups. The cured coating can exhibit reduced fingerprint visibility and low cellulose surface attraction. Also described are copolymer compositions useful as additives.
    Type: Application
    Filed: May 30, 2013
    Publication date: May 7, 2015
    Inventors: Thomas P. Klun, Mahfuza B. Ali, Richard J. Pokorny, Daniel R. Cremons, Michelle L. Toy
  • Publication number: 20150126659
    Abstract: A coating composition is described comprising a polymerizable resin composition, a non-ionic unpolymerizable surfactant having an hydrophilic lipophilic balance ranging from 2 to 6, and a polymerizable surfactant. The surfactants are present at a concentration of greater than 10 wt-% solids. The non-ionic unpolymerizable surfactant and polymerizable surfactant are present at a weight ratio of less than 1.5:1. Also described are articles comprising the cured coating composition. The cured coating exhibits a property of an initially visible simulated fingerprint reducing in visibility within 60 minutes.
    Type: Application
    Filed: May 15, 2013
    Publication date: May 7, 2015
    Inventors: Richard J. Pokorny, Thomas P. Klun, Mahfuza B. Ali, Daniel R. Cremons, Michelle L. Toy
  • Publication number: 20150118501
    Abstract: Coating compositions are described comprising an aqueous polymeric dispersion; a crosslinker; and an acid or salt of a polyalkylene oxide. Also described are articles comprising the dried and cured coating composition disposed on a substrate as well as a method a providing an anti-fog coating on a substrate.
    Type: Application
    Filed: November 1, 2012
    Publication date: April 30, 2015
    Inventors: Yongshang Lu, Naiyong Jing, Dang Xie, Zhigang Yu, Caroline M. Ylitalo, Mahfuza B. Ali, Alexander J. Kugel, Steven P. Swanson
  • Patent number: 8945896
    Abstract: Ligand functionalized substrates, methods of making ligand functionalized substrates, and methods of using functionalized substrates are disclosed.
    Type: Grant
    Filed: January 23, 2013
    Date of Patent: February 3, 2015
    Assignee: 3M Innovative Properties Company
    Inventors: Jerald K. Rasmussen, Catherine A. Bothof, Kannan Seshadri, Erin A. Satterwhite, Robert T. Fitzsimons, Jr., James L. Hembre, Mahfuza B. Ali
  • Publication number: 20150024019
    Abstract: The disclosure provides polymers having antimicrobial activity and articles with the polymers coated thereon. The polymers include a first pendant group comprising a first cationic component, a second pendant group comprising a nonpolar component, and a third pendant group comprising an organosilane component. The disclosure also includes methods of coating medical device articles and body fluid-receiving substrates with the antimicrobial polymers. The methods further include the use of adhesion-promoting components.
    Type: Application
    Filed: May 25, 2011
    Publication date: January 22, 2015
    Inventors: Mahfuza B. Ali, Naiyong Jing, Valeri Lirine, Pradnya V. Nagarkar, Caroline M. Ylitalo, Nancy S. Lennhoff, Matthew T. Scholz, Ranjani V. Parthasarathy
  • Patent number: 8932704
    Abstract: Dimensionally stable nonwoven fibrous webs include a multiplicity of continuous fibers formed from one or more thermoplastic polyesters and polypropylene in an amount greater than 0% and no more than 10% by weight of the web. The webs have at least one dimension which decreases by no greater than 10% in the plane of the web when heated to a temperature above a glass transition temperature of the fibers. A spunbond process may be used to produce substantially continuous fibers that exhibit molecular orientation. A meltblown process may be used to produce discontinuous fibers that do not exhibit molecular orientation. Antishrinkage and antistatic additives are also added to the fibrous webs. The webs may be used as articles for filtration, sound absorption, thermal insulation, surface cleaning, cellular growth support, drug delivery, personal hygiene, medical apparel, or wound dressing.
    Type: Grant
    Filed: February 16, 2011
    Date of Patent: January 13, 2015
    Assignee: 3M Innovative Properties Company
    Inventors: Francis E. Porbeni, Chetan P. Jariwala, Mahfuza B. Ali, Matthew T. Scholz
  • Patent number: 8900556
    Abstract: Thermally responsive compositions that include a thermally responsive viscosity modifier, a polymerizable component, and water are provided. The compositions, which optionally may be hardened, are useful for application to a surface of a body.
    Type: Grant
    Filed: May 7, 2007
    Date of Patent: December 2, 2014
    Assignee: 3M Innovative Properties Company
    Inventors: Joel D. Oxman, Mai T. Nguyen, Sumita B. Mitra, Hoa T. Bui, Jingwen Ma, Jie J. Liu, Mahfuza B. Ali
  • Publication number: 20140335360
    Abstract: An anti-fog coating composition is described comprising an aqueous polymeric dispersion; a crosslinker, and a surfactant. The dried and cured coating composition does not exhibit fogging within 8 seconds after being soaked in 25° C. water for 1 hour. In favored embodiments, the dried and cured coating composition does not exhibit fogging within 60 seconds after being soaked in 50° C. water for 24 hours. Also described are articles comprising the dried and cured coating composition disposed on a substrate as well as a method a providing an anti-fog coating on a substrate.
    Type: Application
    Filed: November 1, 2012
    Publication date: November 13, 2014
    Applicant: 3M Innovative Properties Company
    Inventors: Naiyong Jing, Yongshang Lu, Dang Xie, Zhigang Yu, John L. Battiste, Alan L. Levin, Caroline M. Ylitalo, Mahfuza B. Ali
  • Publication number: 20140170362
    Abstract: An adhesive article for masking a portion of a substrate surface from a liquid coating applied to the surface includes a support having first and second opposed major surfaces, and a cationic or zwitterionic adhesive composition disposed on at least a portion of at least one of the first and second opposed major surfaces. The adhesive composition provides a barrier that impedes the migration of the coating past the edge of the adhesive article.
    Type: Application
    Filed: December 10, 2013
    Publication date: June 19, 2014
    Applicant: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Mahfuza B. Ali, Elizabeth E. Johnson, Michael D. Crandall