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).
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Publication number: 20060027321Abstract: 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: ApplicationFiled: August 9, 2004Publication date: February 9, 2006Inventors: Kevin Schaffer, Dong-Wei Zhu
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Publication number: 20060029784Abstract: A laminated optical article comprising at least one optical film bonded with an adhesive composition.Type: ApplicationFiled: August 9, 2004Publication date: February 9, 2006Inventors: Mai-Chi Doan, Nicole Franchina, Kevin Schaffer, Dong-Wei Zhu
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Patent number: 6903151Abstract: 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: GrantFiled: February 6, 2003Date of Patent: June 7, 2005Assignee: 3M Innovative Properties CompanyInventors: Donald H. Lucast, Dong-Wei Zhu
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Publication number: 20050025794Abstract: 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: ApplicationFiled: August 19, 2004Publication date: February 3, 2005Inventors: Danli Wang, Matthew Scholz, Dong-Wei Zhu, Triet Lu
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Patent number: 6838078Abstract: 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: GrantFiled: January 16, 2002Date of Patent: January 4, 2005Assignee: 3M Innovative Properties CompanyInventors: Danli Wang, Matthew T. Scholz, Dong-Wei Zhu, Triet M. Lu
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Publication number: 20030194415Abstract: 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: ApplicationFiled: January 16, 2002Publication date: October 16, 2003Applicant: 3M Innovative Properties CompanyInventors: Danli Wang, Matthew T. Scholz, Dong-Wei Zhu, Triet M. Lu
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Publication number: 20030194447Abstract: 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: ApplicationFiled: January 16, 2002Publication date: October 16, 2003Applicant: 3M Innovative Properties CompanyInventors: Matthew T. Scholz, Danli Wang, Triet M. Lu, Dong-Wei Zhu
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Publication number: 20030175503Abstract: 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: ApplicationFiled: January 16, 2002Publication date: September 18, 2003Applicant: 3M Innovative Properties CompanyInventors: Donald H. Lucast, Dong-Wei Zhu
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Publication number: 20030171454Abstract: 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: ApplicationFiled: February 6, 2003Publication date: September 11, 2003Applicant: 3M Innovative Properties CompanyInventors: Donald H. Lucast, Dong-Wei Zhu
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Patent number: 6518343Abstract: 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: GrantFiled: August 13, 1999Date of Patent: February 11, 2003Assignee: 3M Innovative Properties CompanyInventors: Donald H. Lucast, Dong-Wei Zhu
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Patent number: 6352758Abstract: 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: GrantFiled: May 4, 1998Date of Patent: March 5, 2002Assignee: 3M Innovative Properties CompanyInventors: Tzu-Li J. Huang, John H. Ko, Dong-Wei Zhu, Bettie C. Fong
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Patent number: 6201056Abstract: 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: GrantFiled: November 5, 1999Date of Patent: March 13, 2001Assignee: 3M Innovative Properties CompanyInventor: Dong-Wei Zhu
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Patent number: 6005043Abstract: 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: GrantFiled: November 20, 1996Date of Patent: December 21, 1999Assignee: 3M Innovative Properties CompanyInventor: Dong-Wei Zhu
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Patent number: 5908663Abstract: 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: GrantFiled: February 1, 1996Date of Patent: June 1, 1999Assignee: Minnesota Mining and Manufacturing CompanyInventors: Shou-Lu G. Wang, Lori P. Engle, Steven J. Hamrock, Dong-Wei Zhu, Thomas E. Wood, Steven J. Martin
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Patent number: 5851674Abstract: 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: GrantFiled: July 30, 1997Date of Patent: December 22, 1998Assignee: Minnesota Mining and Manufacturing CompanyInventors: Mark J. Pellerite, Judith M. Invie, Dong-Wei Zhu
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Patent number: 5760126Abstract: 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: GrantFiled: December 20, 1996Date of Patent: June 2, 1998Assignee: Minnesota Mining and Manufacturing CompanyInventors: Lori P. Engle, Steven J. Hamrock, George G. I. Moore, Mark J. Pellerite, Dong-Wei Zhu
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Patent number: 5608003Abstract: 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: GrantFiled: June 23, 1995Date of Patent: March 4, 1997Assignee: Minnesota Mining and Manufacturing CompanyInventor: Dong-Wei Zhu
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Patent number: 5427656Abstract: 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: GrantFiled: March 29, 1994Date of Patent: June 27, 1995Assignee: Minnesota Mining and Manufacturing CompanyInventors: Fredrick E. Behr, Yuri Cheburkov, John C. Hansen, Dong-Wei Zhu
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Patent number: 5382639Abstract: 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: GrantFiled: December 17, 1993Date of Patent: January 17, 1995Assignee: Minnesota Mining and Manufacturing CompanyInventors: George G. I. Moore, Dong-Wei Zhu
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Patent number: 5294662Abstract: 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: GrantFiled: April 15, 1993Date of Patent: March 15, 1994Assignee: Minnesota Mining and Manufacturing CompanyInventors: George G. I. Moore, Dong-Wei Zhu