Patent application number | Description | Published |
20090156771 | Amine-Containing Compounds for Enhancing the Activity of ATRP Catalysts and Removal of the Terminal Halogen Groups from the ATRP Polymer Products - Disclosed are new, highly active and versatile atom transfer radical polymerization (ATRP) catalysts. These catalysts catalyze ATRP for acrylates, methacrylates, and styrenes at surprisingly low concentrations. These catalysts mediated ATRP at a catalyst/initiator molar ratio at 0.005 and produced polymers with well-controlled molecular weights and low polydispersities. ATRP occurred even at a catalyst/initiator molar ratio as low as 0.001 with metal concentration in the produced polymers as low as 6-8 ppm. Amine-containing compounds, such as triethylamine, can significantly increase the catalyst activity of theses catalysts. The amine compounds can also used to the terminal halogen groups such as Br and Cl in the polymers prepared by ATRP. | 06-18-2009 |
20090266230 | Poly(ionic liquid)s as new materials for co2 separation and other applications - Polymerizable ionic liquid monomers and their corresponding polymers (poly(ionic liquid)s) are created and found to exhibit high CO2 sorption. The poly(ionic liquid)s have enhanced and reproducible CO2 sorption capacities and sorption/desorption rates relative to room-temperature ionic liquids. Furthermore, these materials exhibit selectivity relative to other gases such as nitrogen, methane, and oxygen. They are useful as efficient separation agents, such sorbents and membranes. Novel radical and condensation polymerization approaches are used in the preparation of the poly(ionic liquids). | 10-29-2009 |
20100152037 | BROMINATED POLY (2, 6-DIPHENYL-1, 4-PHENYLENE OXIDE) AND ITS NANOCOMPOSITES AS MEMBRANES FOR CO2 SEPARATION - Novel brominated poly(2,6-diphenyl-1,4-phenylene oxide) compounds are synthesized and found to have improved carbon dioxide separation properties, including improved carbon dioxide permeability and improved carbon dioxide/nitrogen selectivity. silica filler | 06-17-2010 |
20100242728 | CARBON-RICH SORBENT FILTERS - A low-pressure multifunctional filter separates CO | 09-30-2010 |
20100270695 | Processing Nanoparticles by Micellization of Blocky-Copolymers in Subcritical and Supercritical Solvents - Disclosed is a process for forming nanoparticles by the micellization of blocky copolymers in either subcritical or supercritical solvents and antisolvents. The nanoparticles are suited for use as delivery vehicles for drugs and genes. | 10-28-2010 |
20120003177 | CURCUMIN-CONTAINING POLYMERS AND WATER-SOLUBLE CURCUMIN DERIVATIVES AS PRODRUGS OF PRODRUG CARRIERS - Curcumin, a polyphenol extracted from the rhizome turmeric, has been polymerized to produce a polymer material having a backbone of one or more repeating structural units, at least one of which comprises a curcumin monomer residue. These curcumin-containing polymers have a wide range of pharmacological activities, including, among others antitumor, antioxidant, antiinflammatory, antithrombotic and antibacterial activities. Certain species of these polymers have exhibited remarkable antitumor activity. Water-soluble curcumin derivatives and their use as prodrugs and prodrug carriers are also disclosed. | 01-05-2012 |
20120177592 | DEGRADABLE THERMORESPONSIVE POLY(ETHYLENE GLYCOL) ANALOGUE MATERIALS - A method of developing degradable linear poly(ethylene glycol) PEG (DPEG) with multiple functioning capacities, which can be used as drug carriers for cancer cell delivery. A DPEG may be effective in targeting cancerous tumors through an enhanced permeation and retention effect (EPR). The DPEG will then degrade in the acidic extracellular fluid of solid tumors leading to fast cellular internalizations, finally degrading in the lysosome for efficient renal clearance. These may be used in conjunction with drugs and/or targeting groups. Furthermore, DPEGs are thermoresponsive, on an as needed basis, making them useful for in vivo application. | 07-12-2012 |
20130225401 | Poly(Ionic Liquid) Sorbents and Membranes for CO2 Separation - Polymerizable ionic liquid monomers and their corresponding polymers (poly(ionic liquid)s) are created and found to exhibit high CO | 08-29-2013 |