Patents by Inventor Dong-Wei Zhu

Dong-Wei Zhu 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: 20060027321
    Abstract: The invention relates to an adhesive composition comprising the reaction product of at least one nitrogen-containing polymer and at least one polymerizable ethylenically unsaturated diluent.
    Type: Application
    Filed: August 9, 2004
    Publication date: February 9, 2006
    Inventors: Kevin Schaffer, Dong-Wei Zhu
  • Publication number: 20060029784
    Abstract: A laminated optical article comprising at least one optical film bonded with an adhesive composition.
    Type: Application
    Filed: August 9, 2004
    Publication date: February 9, 2006
    Inventors: Mai-Chi Doan, Nicole Franchina, Kevin Schaffer, Dong-Wei Zhu
  • Patent number: 6903151
    Abstract: A wet-stick pressure-sensitive adhesive is provided wherein the pressure-sensitive adhesive comprises: at least one copolymerized monoethylenically unsaturated (meth)acrylic acid ester monomer, wherein the (meth)acrylic acid ester monomer, when homopolymerized, has a Tg of less than about 10° C.; at least one copolymerized hydrophilic acidic comonomer; and at least one nonreactive copolymer comprising at least two copolymerized alkylene oxides, at least one of which is hydrophobic and at least one of which is hydrophilic.
    Type: Grant
    Filed: February 6, 2003
    Date of Patent: June 7, 2005
    Assignee: 3M Innovative Properties Company
    Inventors: Donald H. Lucast, Dong-Wei Zhu
  • Publication number: 20050025794
    Abstract: Film-forming compositions, as well as methods of making and using, wherein the compositions include an optional active agent, water, a surfactant, and a water-soluble or water-dispersible vinyl polymer comprising amine group-containing side-chains and a copolymerized hydrophobic monomer; wherein the amine equivalent weight of the polymer is at least about 300 grams polymer per equivalent of amine group.
    Type: Application
    Filed: August 19, 2004
    Publication date: February 3, 2005
    Inventors: Danli Wang, Matthew Scholz, Dong-Wei Zhu, Triet Lu
  • Patent number: 6838078
    Abstract: Film-forming compositions, as well as methods of making and using, wherein the compositions include an optional active agent, water, a surfactant, and a water-soluble or water-dispersible vinyl polymer comprising amine group-containing side-chains and a copolymerized hydrophobic monomer; wherein the amine equivalent weight of the polymer is at least about 300 grams polymer per equivalent of amine group.
    Type: Grant
    Filed: January 16, 2002
    Date of Patent: January 4, 2005
    Assignee: 3M Innovative Properties Company
    Inventors: Danli Wang, Matthew T. Scholz, Dong-Wei Zhu, Triet M. Lu
  • Publication number: 20030194415
    Abstract: Film-forming compositions, as well as methods of making and using, wherein the compositions include an optional active agent, water, a surfactant, and a water-soluble or water-dispersible vinyl polymer comprising amine group-containing side-chains and a copolymerized hydrophobic monomer; wherein the amine equivalent weight of the polymer is at least about 300 grams polymer per equivalent of amine group.
    Type: Application
    Filed: January 16, 2002
    Publication date: October 16, 2003
    Applicant: 3M Innovative Properties Company
    Inventors: Danli Wang, Matthew T. Scholz, Dong-Wei Zhu, Triet M. Lu
  • Publication number: 20030194447
    Abstract: Antiseptic compositions, as well as methods of making and using, wherein the compositions include: an antimicrobial agent selected from the group consisting of iodine (I2), an iodophor, and a combination thereof, wherein the antimicrobial agent is present in an amount sufficient to provide an available iodine concentration of at least about 0.25 wt-%; a hydroxycarboxylic acid buffer in an amount of at least about 5 wt-%; water; and an optionally substantive film-forming polymer.
    Type: Application
    Filed: January 16, 2002
    Publication date: October 16, 2003
    Applicant: 3M Innovative Properties Company
    Inventors: Matthew T. Scholz, Danli Wang, Triet M. Lu, Dong-Wei Zhu
  • Publication number: 20030175503
    Abstract: A pressure sensitive adhesive composition is provided that includes a pressure sensitive adhesive polymer. The polymer includes: at least one copolymerized monoethylenically unsaturated (meth)acrylic acid ester monomer, wherein the (meth)acrylic acid ester monomer, when homopolymerized, has a Tg of less than about 25° C.; at least one copolymerized monoethylenically unsaturated reinforcing monomer, wherein the reinforcing monomer, when homopolymerized, has a Tg of at least about 25° C.; covalently bonded quarternary ammonium functionality; and, optionally, at least one copolymerized monoethylenically unsaturated poly(alkylene oxide) monomer. The composition optionally further includes at least one nonreactive poly(alkylene oxide) polymer and/or at least one antimicrobial agent.
    Type: Application
    Filed: January 16, 2002
    Publication date: September 18, 2003
    Applicant: 3M Innovative Properties Company
    Inventors: Donald H. Lucast, Dong-Wei Zhu
  • Publication number: 20030171454
    Abstract: A wet-stick pressure-sensitive adhesive is provided wherein the pressure-sensitive adhesive comprises: at least one copolymerized monoethylenically unsaturated (meth)acrylic acid ester monomer, wherein the (meth)acrylic acid ester monomer, when homopolymerized, has a Tg of less than about 10° C.; at least one copolymerized hydrophilic acidic comonomer; and at least one nonreactive copolymer comprising at least two copolymerized alkylene oxides, at least one of which is hydrophobic and at least one of which is hydrophilic.
    Type: Application
    Filed: February 6, 2003
    Publication date: September 11, 2003
    Applicant: 3M Innovative Properties Company
    Inventors: Donald H. Lucast, Dong-Wei Zhu
  • Patent number: 6518343
    Abstract: A wet-stick pressure-sensitive adhesive is provided wherein the pressure-sensitive adhesive comprises: at least one copolymerized monoethylenically unsaturated (meth)acrylic acid ester monomer, wherein the (meth)acrylic acid ester monomer, when homopolymerized, has a Tg of less than about 10° C.; at least one copolymerized hydrophilic acidic comonomer; and at least one nonreactive copolymer comprising at least two copolymerized alkylene oxides, at least one of which is hydrophobic and at least one of which is hydrophilic.
    Type: Grant
    Filed: August 13, 1999
    Date of Patent: February 11, 2003
    Assignee: 3M Innovative Properties Company
    Inventors: Donald H. Lucast, Dong-Wei Zhu
  • Patent number: 6352758
    Abstract: An article is disclosed that has a patterned surface containing alternating hydrophobic and hydrophilic surface regions. The hydrophobic regions may be sufficiently narrow such that under dew conditions moisture accumulated on the hydrophobic region migrates to the hydrophilic region, thus preventing the accumulation of water droplets. In frost conditions, the hydrophobic region remains relatively frost-free, thus maintaining at least partial transparency of the surface. Inorganic oxide particles on the surfaces of the hydrophobic regions may provide abrasion resistance. A method for making the patterned surfaces is disclosed in which a treatment removes organic binder to expose inorganic oxide particles at the surface of the hydrophilic regions.
    Type: Grant
    Filed: May 4, 1998
    Date of Patent: March 5, 2002
    Assignee: 3M Innovative Properties Company
    Inventors: Tzu-Li J. Huang, John H. Ko, Dong-Wei Zhu, Bettie C. Fong
  • Patent number: 6201056
    Abstract: Coatings prepared from water-based compositions comprise an aqueous solution, emulsion, or dispersion of (a) a water-soluble or water-dispersible polymer or oligomer having at least one anionic moiety which is capable of reacting with an oxazoline or oxazine moiety; (b) a water-soluble or water-dispersible polymer or oligomer having at least one oxazoline or oxazine moiety; and (c) colloidal silica; at least one of the components (a) and (b) further comprising at least one fluoroaliphatic moiety. The coatings have low surface energy and high abrasion resistance.
    Type: Grant
    Filed: November 5, 1999
    Date of Patent: March 13, 2001
    Assignee: 3M Innovative Properties Company
    Inventor: Dong-Wei Zhu
  • Patent number: 6005043
    Abstract: Water-based coating compositions comprise an aqueous solution, emulsion, or dispersion of (a) a water-soluble or water-dispersible polymer or oligomer having at least one anionic moiety which is capable of reacting with an oxazoline or oxazine moiety; (b) a water-soluble or water-dispersible polymer or oligomer having at least one oxazoline or oxazine moiety; and (c) colloidal silica; at least one of the components (a) and (b) further comprising at least one fluoroaliphatic moiety. The compositions can be used to form hard coatings having low surface energy and high abrasion resistance.
    Type: Grant
    Filed: November 20, 1996
    Date of Patent: December 21, 1999
    Assignee: 3M Innovative Properties Company
    Inventor: Dong-Wei Zhu
  • Patent number: 5908663
    Abstract: A method for treating carpets is provided which obviates the need for scouring. In accordance with the method, an unscoured carpet is treated topically, and by means of a low wet pickup method, with a solution comprising particles of silica or a similar inorganic additive and a fluorochemical or other optional organic additive. Carpets treated in accordance with this method are found to have excellent soil resistance properties which do not decrease noticeably with subsequent wear or cleaning. Furthermore, since the method involves a low wet pickup, the required drying times are significantly reduced as compared to conventional aqueous bath immersion methods.
    Type: Grant
    Filed: February 1, 1996
    Date of Patent: June 1, 1999
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Shou-Lu G. Wang, Lori P. Engle, Steven J. Hamrock, Dong-Wei Zhu, Thomas E. Wood, Steven J. Martin
  • Patent number: 5851674
    Abstract: An antisoiling coating for an antireflective surface, particularly the outer surface of an antireflective film stack, wherein the antisoiling coating includes a fluorinated siloxane, preferably prepared by applying a coating composition of a fluorinated silane of the following formula:R.sub.f --R.sup.1 --SiX.sub.3-x R.sup.2.sub.xwherein:R.sub.f is a perfluorinated group optionally containing one or more heteroatoms;R.sup.1 is a divalent alkylene group, arylene group, or mixture thereof, substituted with one or more heteroatoms or functional groups, containing about 2 to about 16 carbon atoms;R.sup.2 is a lower alkyl group;X is a halide, a lower alkoxy group, or an acyloxy group; andx is 0 or 1.
    Type: Grant
    Filed: July 30, 1997
    Date of Patent: December 22, 1998
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Mark J. Pellerite, Judith M. Invie, Dong-Wei Zhu
  • Patent number: 5760126
    Abstract: Water-based coating compositions comprise an aqueous solution, emulsion, or dispersion of (a) a water-soluble or water-dispersible polymer or oligomer having at least one anionic moiety which is capable of reacting with an oxazoline or oxazine moiety; (b) a water-soluble or water-dispersible polymer or oligomer having at least one oxazoline or oxazine moiety; and (c) a sol comprising a colloidal dispersion of surface-modified, inorganic microparticles in liquid; at least one of the components (a), (b), and (c) further comprising at least one fluoroaliphatic moiety. The compositions can be used to form hard coatings having low surface energy and high abrasion resistance.
    Type: Grant
    Filed: December 20, 1996
    Date of Patent: June 2, 1998
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Lori P. Engle, Steven J. Hamrock, George G. I. Moore, Mark J. Pellerite, Dong-Wei Zhu
  • Patent number: 5608003
    Abstract: Water-based coating compositions comprise an aqueous solution, emulsion, or dispersion of (a) a water-soluble or water-dispersible polymer or oligomer having at least one anionic moiety which is capable of reacting with an oxazoline or oxazine moiety; (b) a water-soluble or water-dispersible polymer or oligomer having at least one oxazoline or oxazine moiety; and (c) colloidal silica; at least one of the components (a) and (b) further comprising at least one fluoroaliphatic moiety. The compositions can be used to form hard coatings having low surface energy and high abrasion resistance.
    Type: Grant
    Filed: June 23, 1995
    Date of Patent: March 4, 1997
    Assignee: Minnesota Mining and Manufacturing Company
    Inventor: Dong-Wei Zhu
  • Patent number: 5427656
    Abstract: A process for preparing inert or functional, tertiary carbon-containing perfluorochemicals comprises the step of electrochemically fluorinating, in the presence of anhydrous hydrogen fluoride, a composition comprising at least one starting compound selected from the group consisting of those fluoroalkanes, fluoroalkenes, fluoroalcohols, fluorocarboxylic acids, fluorocarboxylic acid halides, fluorocarboxylic acid esters, and combinations thereof which contain at least one (preferably, only one) --CX.sub.2 --C(R.sub.f).sub.2 -- group, wherein each X is independently selected from the group consisting of hydrogen, fluorine, and CH.sub.2 OH, with the proviso that only one X can be CH.sub.2 OH, and each R.sub.f group is independently perfluoroalkyl. The process enables preservation of the highly-branched structure of the starting compounds resulting in high product yields.
    Type: Grant
    Filed: March 29, 1994
    Date of Patent: June 27, 1995
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Fredrick E. Behr, Yuri Cheburkov, John C. Hansen, Dong-Wei Zhu
  • Patent number: 5382639
    Abstract: Novel polymers are disclosed which can be used to prepare water-based compositions are disclosed having the capability of forming a uniform, low surface-energy, thin film on a substrate. Such compositions comprise a polymer having at least one fluoroaliphatic moiety and at least one anionic moiety, and a novel polymer having at least one fluoroaliphatic moiety and at least one oxazoline moiety.
    Type: Grant
    Filed: December 17, 1993
    Date of Patent: January 17, 1995
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: George G. I. Moore, Dong-Wei Zhu
  • Patent number: 5294662
    Abstract: Novel polymers are disclosed which can be used to prepare water-based compositions are disclosed having the capability of forming a uniform, low surface-energy, thin film on a substrate. Such compositions comprise a polymer having at least one fluoroaliphatic moiety and at least one anionic moiety, and a novel polymer having at least one fluoroaliphatic moiety and at least one oxazoline moiety.
    Type: Grant
    Filed: April 15, 1993
    Date of Patent: March 15, 1994
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: George G. I. Moore, Dong-Wei Zhu