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| Number | Title | Issue Date |
| 8163439 | Electrolyte membranes and methods of use N-heterocyclic functionalized polymers and methods of use in fuel cells. Phenoxy-substituted polyphosphazenes and phosphazene trimers functionalized with azoles can provide polymer electrolyte membranes with high thermal stability coupled with a large number of prot... | 04/24/2012 |
| 7763702 | Synthesis of polyphosphazenes with sulfonimide side groups The invention relates to sulfonimide bearing phenolic compounds and the use of those compounds to produce polyphosphazenes functionalized by one or more of those compounds alone, or in combination with cosubstituents. The invention also relates to blends of sulfonim... | 07/27/2010 |
| 7723463 | Polyphosphazine-based polymer materials Methods of removing contaminant matter from porous materials include applying a polymer material to a contaminated surface, irradiating the contaminated surface to cause redistribution of contaminant matter, and removing at least a portion of the polymer material fr... | 05/25/2010 |
| 7439275 | Anion-conducting polymer, composition, and membrane Anion-conducing polymers and membranes with enhanced stability to aqueous alkali include a polymer backbone with attached sulfonium, phosphazenium, phosphazene, and guanidinium residues. Compositions also with enhanced stability to aqueous alkali include a support e... | 10/21/2008 |
| 7417110 | Biodegradable polyphosphoramidates for controlled release of bioactive substances The present invention is directed to a series of new polycationic biodegradable polyphosphoramidates. Process for making the polymers, compositions containing these polymers and bioactive ligands to enhance the cellular uptake ad intracellular trafficking, articles ... | 08/26/2008 |
| 7294685 | Sulfonated polyphosphazene derivative and method for producing the same A polyphosphazene derivative and an aromatic ring compound are bonded to one another to obtain an intermediate product. Subsequently, anhydrous sulfuric acid is added in such an amount that the molar ratio is 2 to 8 with respect to a repeating unit of the intermedia... | 11/13/2007 |
| 7265199 | Poly-tri-fluoro-ethoxypolyphosphazene coverings and films The present invention relates to an anti-thrombogenic, physically well-tolerated polymer and its use for manufacturing sheaths and films as a component of therapeutic devices for preventing excessive cell proliferation. Furthermore, it relates to films made from the... | 09/04/2007 |
| 7259225 | Thermosensitive poly (organophosphazenes), preparation method thereof and injectable thermosensitive polyphosphazene hydrogels using the same Disclosed are polyphosphazenes of Formula 1 showing a sol-gel behavior with a temperature change, a preparation method thereof, and injectable thermosensitive polyphosphazene hydrogels using the same ... | 08/21/2007 |
| 7235295 | Polymeric nanofibers for tissue engineering and drug delivery Polymeric nanofibers have been developed which are useful in a variety of medical and other applications, such as filtration devices, medical prosthesis, scaffolds for tissue engineering, wound dressings, controlled drug delivery systems, cosmetic skin masks, and pr... | 06/26/2007 |
| 7217781 | Polyphosphazenes including ionic or ionizable moieties and fluorine-containing moieties A polyphosphate polymer which includes both (i) ionic or ionizable moieties; and (ii) fluorine-containing moieties. Such polymers may be used as matrices for pharmaceuticals, as multilayer coatings for fuel cell membranes, as dopant for electrically conductive polym... | 05/15/2007 |
| 7174961 | Methods of cementing using cement compositions comprising basalt fibers Methods of using cement compositions that comprise basalt fibers in subterranean formations are provided. An example of such a method may comprise providing a cement composition that comprises water, a hydraulic cement, and a plurality of basalt fibers; introducing ... | 02/13/2007 |
| 7169499 | Sulfonated polyphosphazenes, uses thereof, and methods for preparing same Polyphosphazene polymers having at least one sulfonated pendent group, and no more than five different sulfonated pendent groups, repeated along the polymer chain, wherein at least one the repeated sulfonated pendent groups links at least one SO3− | 01/30/2007 |
| 7087589 | Methanocarba cycloakyl nucleoside analogues The present invention provides novel nucleoside and nucleotide derivatives that are useful agonists or antagonists of P1 or P2 receptors. For example, the present invention provides a compound of formula A-M, wherein A is modified adenine or uracil and M is a constr... | 08/08/2006 |
| 7043833 | Method of making an angled conductor electrical connector A method of manufacturing an angled conductor electrical connector including extruding a metal member having a channel therein; and bending the metal member such that the channel forms two angled conductor receiving areas. Each conductor receiving area has a channel... | 05/16/2006 |
| 6951953 | Tumor selective and biodegradable polyphosphazene-platinum(II) conjugate antitumor agent, and preparation method thereof Disclosed are a new class of a polyphosphazene-platinum(II) conjugate antitumor agent having high tumor tissue selectivity due to its enhanced permeability and retention effect to tumor tissues, and a preparation method thereof: ... | 10/04/2005 |
| 6903182 | Phosphole and diphosphole ligands for catalysis Novel reactions used to prepare phosphole and bisphosphole compounds are detailed. Novel phosphole compounds and metal coordination compounds of phosphole and bisphosphole compounds are also provided. These metal coordination compounds are useful as catalysts for th... | 06/07/2005 |
| 6605237 | Polyphosphazenes as gel polymer electrolytes Co-subsituted linear polyphosphazene polymers that useful in gel polymer electrolytes having an ion conductivity at room temperature of at least about 10-5 S/cm and comprising (i) a polyphosphazene having controlled ratios of side chains that p... | 08/12/2003 |
| 6548567 | Ionic compounds with delocalized anionic charge, and their use as ion conducting components or as catalysts The invention relates to an ionic compound corresponding to the formula [R1 X1 (Z1)--Q- --X2 (Z2)--R2 ]m Mm+ in which Mm+ is a cation of valency m, ea... | 04/15/2003 |
| 6392008 | Polyphosphazene polymers Compositions of polyphosphazene-containing polymers and methods of preparation thereof are provided. The disclosed compositions encompass telechelic functionalized polyphosphazenes and a variety of block and graft polyphosphazene-polystyrene, polyphosphaz... | 05/21/2002 |
| 6140460 | Catalyst composition A catalyst composition prepared by reacting together (a) a source of a Group VIII metal (b) a bidentate phosphine ligand having at least two phosphorus atoms joined by a bridging group of the formula --(N)x --(P)y --N-- where x is 0 or 1 and y... | 10/31/2000 |
| 6020081 | Polymerizable phosphazene derivatives: a process for preparing them and their uses This invention relates to a polymerizable phosphazene derivative with a general structural formula .brket open-st.NP(A)a (B)b).brket close-st.x wherein the groups A and B are bonded to phosphorus atoms through --O--, --S--, --N... | 02/01/2000 |
| 6018016 | Catalyst composition A catalyst composition prepared by reacting together (a) a source of a Group VIII metal; (b) a bidentate phosphine ligand having at least two phosphorus atoms joined by a bridging group of the formula --(N)x --(P)y --N-- where x is 0... | 01/25/2000 |
| 5994497 | Compositions having a phosphazene derivative and a cross-linking agent The invention relates to hardenable compositions which contain as the essential constituent, in the non-hardened condition, at least one phosphazene derivative of the general formula [NP--(X--Y--Z)2 ]n, and at least one cross-linking... | 11/30/1999 |
| 5919894 | Process for preparing polymers with recurring succinyl units Polymers with repeating succinyl units, in particular polysuccinimide and polyaspartic acid, are prepared using triammonium salts, in particular triammonium phosphates.... | 07/06/1999 |
| 5914388 | Synthesis polyphosphazenes with controlled molecular weight and polydisperity A process for the preparation of polyphosphazenes is provided that includes the cationic solution polymerization reaction of a phosphoranimine, using a main group or transition metal halide, or other appropriate halide salt, including a linear phosphazene... | 06/22/1999 |
| 5912321 | Polymerizable phosphazene derivatives: a process for preparing them and their uses This invention relates to a polymerizable phosphazene derivative with a general structural formula .brket open-st.NP(A)a (B)b).brket close-st.x wherein the groups A and B are bonded to phosphorus atoms through --O--, --S--, --N... | 06/15/1999 |
| 5898062 | Poly (organophosphazene) hydrogels Poly (organophosphazene) polymers bearing various ratios of a carboxylic acid containing sidegroup and an alkylamino, alkoxy, or alkoxy ether sidegroup are disclosed. These water-soluble macromolecules are cross-linked and allowed to absorb water to form ... | 04/27/1999 |
| 5863981 | Electrically conducting water-soluble self-doping polyaniline polymers and the aqueous solutions thereof A self-doped conducting polymer having along its backbone a π-electron conjugated system which comprises a plurality of monomer units, between about 0.01 and 100 mole % of the units having covalently linked thereto at least one Bronsted acid group. The c... | 01/26/1999 |
| 5844069 | Copolymers having magnetic properties The invention provides copolymers having magnetic properties, said copolymers containing aminoaromatic groups, and being based on a structural unit comprising: a first group of aminoaromatic compounds chosen from aniline derivatives and the corresponding ... | 12/01/1998 |
| 5842471 | Purification of polyphosphazene polyacids A method for purification of a polyphosphazene polyacid or acid salt thereof in which a polyphosphazene polyacid or acid salt thereof is dissolved in a concentrated aqueous solution of a salt of monovalent ions. The resulting aqueous solution of the polyp... | 12/01/1998 |
| 5817736 | Epoxy resin mixtures for prepregs and composites based on phosphorus-modified epoxies, dicy and/or aminobenzoic compounds Epoxy resin mixtures to produce prepregs and composites contain the following components: a phosphorus-modified epoxy resin with an epoxy value of 0.02 to 1 mol/100 g, made up of structural units derived from (a) polyepoxy compounds with at least two epoxy gro... | 10/06/1998 |
| 5817745 | Catalyst compositions A process for the manufacture of polyketones wherein carbon monoxide and at least one olefin are polymerized in the presence of a catalyst. The catalyst is prepared by reacting together a promotor; a source of a Group VIII metal; and a compound of the for... | 10/06/1998 |
| 5759692 | Phosphorous-modified coating compositions, a process for their preparation, and their use as an intumescent coating The invention relates to expandable, halogen-free, flame-retardant coating compositions comprising epoxy resins, polyphosphoric esters and a curing agent, which composition comprises from 75 to 95 parts by weight of epoxy resin and from 5 to 25 parts by w... | 06/02/1998 |
| 5759691 | Phosphorus-modified coating compositions, a process for their preparation, and their use The invention relates to an expandable, halogen-free, flame-retardant coating composition comprising epoxy resins, polyphosphoric/polyphosphonic esters and a curing agent, which composition comprises from 75 to 95 parts by weight of epoxy resin and from 5... | 06/02/1998 |
| 5759690 | Epoxy resin mixtures for prepregs and composites Epoxy resin mixtures for the production of prepregs and composites contain the following components: a phosphorus-modified epoxy resin with an epoxy value of 0.02 to 1 mol/100 g, made up of structural units derived from (a) polyepoxy compounds with at least tw... | 06/02/1998 |
| 5747604 | Polyphosphazenes with unsaturated side groups useful as reaction intermediates, cross-linkable polymers, and as components of interpenetrating polymer networks A number of new poly(organophosphazenes) have been synthesized which bear 2-butenoxy or 4-allyloxyphenylphenoxy side groups. Co-substituent groups included trifluoroethoxy, phenoxy, or benzyloxyphenoxy groups. Species with 4-allyloxyphenylphenoxy units un... | 05/05/1998 |
| 5698664 | Synthesis of polyphosphazenes with controlled molecular weight and polydispersity A process for the preparation of polyphosphazenes is provided that includes the cationic solution polymerization reaction of a phosphoranimine, using a main group or transition metal halide, or other appropriate halide salt, including a linear phosphazene... | 12/16/1997 |
| 5688888 | Peralkylated phosphazene base-catalyzed silanol condensation method Organopolysiloxane oils and gums are produced by the condensation of silanol-terminated organosiloxane in the presence of an effective amount of a peralkylated phosphazene base as a catalyst and at reduced pressure.... | 11/18/1997 |
| 5648171 | Epoxy resin mixtures containing phosphorus acid/epoxy resin adducts Epoxy resin mixtures for producing prepregs and composites that are available at low cost and can be processed well yield flame-retardant molding materials even without the addition of flame retardants, and these molding materials have a high glass transi... | 07/15/1997 |
| 5633077 | Infrared radiation blocking insulation product A thermal insulation product which effectively blocks the transmission of infrared radiation through the product is provided and includes, in combination, an insulating material and a chiral polymer adapted to block the passage of infrared radiation throu... | 05/27/1997 |
