Patent application number | Description | Published |
20090162640 | POLYMER MECHANICAL DAMPING COMPOSITES AND METHODS OF PRODUCTION - A method of reshaping an article comprising a polyelectrolyte complex, the polyelectrolyte complex comprising an intermolecular blend of a predominantly positively-charged polyelectrolyte and a predominantly negatively charged polyelectrolyte by controlling the salt doping level. | 06-25-2009 |
20090202816 | STABILIZED SILICA COLLOID - A nanoparticle has at least one dimension less than 500 nm and comprises a silica surface and a plurality of zwitterionic functional groups covalently bound to the silica surface. Such nanoparticles and dispersions contain such nanoparticle are prepared and used for a variety of purposes. | 08-13-2009 |
20100009148 | POLYMER MECHANICAL DAMPING COMPOSITES AND METHODS OF PRODUCTION - An article comprising a polyelectrolyte complex, the polyelectrolyte complex comprising an intermolecular blend of a predominantly positively-charged polyelectrolyte and a predominantly negatively charged polyelectrolyte and being free of salt crystals having a size greater than about 1 micrometer and free of voids having a size greater than about 100 nm, the article having no transverse dimension less than about 10,000 nm. | 01-14-2010 |
20100041777 | COMPACTED POLYELECTROLYTE COMPLEXES AND ARTICLES - A method is described for producing an osmotically compacted polyelectrolyte complex having a first region and a second region, the first region having a greater modulus than the second region. The method comprises contacting an article comprising polyelectrolyte complex to a solution comprising a preferred osmolyte of concentration sufficient to compact said polyelectrolyte complex and terminating the compaction process before the entire article is osmotically compacted. | 02-18-2010 |
20100173224 | HYDROPHOBIC FLUORINATED POLYELECTROLYTE COMPLEX FILMS AND ASSOCIATED METHODS - A fuel cell comprising a proton transporting membrane is provided. The proton transporting membrane comprises a polyelectrolyte film comprising a multilayer comprising an interpenetrating network of a net positively charged polyelectrolyte polymer comprising repeat units with at least two fluorine atoms and a net negatively charged polyelectrolyte polymer comprising repeat units with at least two fluorine atoms, and further comprising a fluorinated counterion within the multilayer. | 07-08-2010 |
20120094020 | HYDROPHOBIC FLUORINATED POLYELECTROLYTE COMPLEX FILMS AND ASSOCIATED METHODS - A method for controlling the hydrophobicity of a surface of an article by alternately depositing solutions comprising net positively charged polymers and net negatively charged polymers onto the surface to form a polyelectrolyte film of an interpenetrating network of net positively charged polymers and net negatively charged polymers on the surface of the article. | 04-19-2012 |
20120108684 | COMPACTED POLYELECTROLYTE COMPLEXES AND ARTICLES - A method is described for producing an osmotically compacted polyelectrolyte complex having a first region and a second region, the first region having a greater modulus than the second region. The method comprises contacting an article comprising polyelectrolyte complex to a solution comprising a preferred osmolyte of concentration sufficient to compact said polyelectrolyte complex and terminating the compaction process before the entire article is osmotically compacted. | 05-03-2012 |
20120108685 | COMPACTED POLYELECTROLYTE COMPLEXES AND ARTICLES - A method is described for producing an osmotically compacted polyelectrolyte complex having a first region and a second region, the first region having a greater modulus than the second region. The method comprises contacting an article comprising polyelectrolyte complex to a solution comprising a preferred osmolyte of concentration sufficient to compact said polyelectrolyte complex and terminating the compaction process before the entire article is osmotically compacted. | 05-03-2012 |
20120148522 | Biocompatible Polyelectrolyte Complexes and Methods of Use - An article comprising a polyelectrolyte complex comprising an interpenetrating network of at least one predominantly positively charged polyelectrolyte polymer and at least one predominantly negatively charged polyelectrolyte polymer, the polyelectrolyte complex further comprising a plurality of closed-shell pores, the plurality of pores having at least one average transverse dimension between about 100 nanometer and about 1000 micrometers. | 06-14-2012 |
20120238642 | Polymer Mechanical Damping Composites and Methods of Production - A method of reshaping an article comprising a polyelectrolyte complex, the polyelectrolyte complex comprising an intermolecular blend of a predominantly positively-charged polyelectrolyte and a predominantly negatively charged polyelectrolyte by controlling the salt doping level. | 09-20-2012 |
20120326348 | Polymer Mechanical Damping Composites And Methods of Production - A method of reshaping an article comprising a polyelectrolyte complex, the polyelectrolyte complex comprising an intermolecular blend of a predominantly positively-charged polyelectrolyte and a predominantly negatively charged polyelectrolyte by controlling the salt doping level. | 12-27-2012 |
20130256583 | Stable Iron Oxide Nanoparticles and Method of Production - A method of preparing a dispersion of stabilized iron oxide nanoparticles that comprise cores and coatings on the cores, which comprise zwitterionic functional groups chemically bound to the cores, using a single solution that comprises dissolved iron ions and a zwitterion silane and/or a hydrolyzed product of the zwitterion silane. | 10-03-2013 |
20130284600 | THIN FILMS FOR CONTROLLED PROTEIN INTERACTION - A medium for isolating or releasing an electrostatically charged component from or into an aqueous composition. The medium has a polyelectrolyte film on at least one surface of an article wherein the polyelectrolyte film is characterized by an interpenetrating network of a predominantly positively charged polymer and a predominantly negatively charged polymer. The predominantly positively charged polymer, the predominantly negatively charged polymer or both contain (i) a pH sensitive imidazole repeat unit having a pKa between 3 and 9, or (ii) a redox sensitive repeat unit selected from the group consisting of quaternized bipyridine repeat units, coordinated metal repeat units, pyrrole repeat units, aniline repeat units, thiophene repeat units and combinations thereof having a redox potential between +1.2 volts and −1.2 volts versus a standard hydrogen electrode. | 10-31-2013 |