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| Number | Title | Issue Date |
| 8188211 | Oxymethylene polymers, process for the preparation thereof and use thereof Oxymethylene polymers having a bimodal distribution or having a distribution of higher modality and having a targeted content of a low molecular weight fraction of from 1 to 5 percent by mass are described. Moldings of these polymers are distinguished by high low-te... | 05/29/2012 |
| 8133968 | Poly(orthoester) polymers, and methods of making and using same Poly(orthoester) polymers, and methods of making and using such poly(orthoester) polymers are provided. The poly(orthoester) polymers can be useful for applications including, for example, medical devices and pharmaceutical compositions. In a preferred embodiment, t... | 03/13/2012 |
| 8114957 | Process for preparing poly(trimethylene ether) glycol and copolymers thereof Processes for preparing relatively high molecular weight poly(trimethylene ether)glycol employing a cocatalyst system are provided. ... | 02/14/2012 |
| 8071712 | Multibranched polyoxyalkylene derivative An object of the present invention is to provide a novel multibranched polyoxyalkylene derivative, and an intermediate for the production thereof. Specifically, the object is to provide a multibranched polyoxyalkylene derivative which can keep a high activity of a b... | 12/06/2011 |
| 8058388 | Process for alkoxylation with DMC catalysts in a loop reactor with ejector The invention relates to a process for preparing polyethers of the formula (I) R1—(CHR2CHR3—O)n—H (I) where n=1 to 12 000, R1=a radical comprising at l... | 11/15/2011 |
| 8048982 | Method for producing aromatic compound polymer A method for producing an aromatic compound polymer comprising oxidatively polymerizing one or more of aromatic compound(s) having two or more hydrogen atoms directly connected to aromatic ring(s), in the presence of an oxidizing agent, wherein the method employs a ... | 11/01/2011 |
| 7919575 | Starter feed stream acidification in DMC-catalyzed process The process of the present invention provides for the manufacture of lower molecular weight DMC-catalyzed polyols than is possible using non-acidified continuous addition of starter (CAOS) feeds, by adding excess acid to a starter feed stream over that required for ... | 04/05/2011 |
| 7888454 | Substituted alditol compounds, compositions, and methods Substituted alditol or carbohydrate compounds having a specified general formula are provided. A method for synthesizing such substituted alditol or carbohydrate compounds is also provided. ... | 02/15/2011 |
| 7863408 | Body fluid compatible and biocompatible resin A body fluid compatible and biocompatible resin for use in a medical treatment involving a contact of said resin with at least one member selected from the group consisting of a body fluid and a biological tissue, which comprises at least one substituted oxyalkylene... | 01/04/2011 |
| 7585934 | Process for producing polyether polymer composition, polyether polymer composition, and solid electrolyte film A process for producing a polyether polymer composition, comprising incorporating an antioxidant insoluble in an organic solvent and/or a stabilizer soluble in the organic solvent, in a slurry containing a polyether polymer and the organic solvent to disperse or dis... | 09/08/2009 |
| 7576172 | Method of preparing aliphatic polymer having ketone group in main chain thereof and method of preparing composition containing the same The present invention discloses a method of synthesizing an aliphatic polymer having a ketone group in the main chain thereof, in which polyhydric alcohol (for example, glycerin) as a raw material is polymerized in the presence of a catalyst, and a method of prepari... | 08/18/2009 |
| 7504477 | Polyalkylene glycol acid additives A new class of activated polyalkylene glycol acids and their active ester reagents for conjugation to biopharmaceuticals such as polypeptides, sugars, proteins and therapeutically active small molecules to produce biologically active conjugates of these pharmaceutic... | 03/17/2009 |
| 7462683 | Dihalide, polymer compound and method for producing the same It is an object of the invention to provide a novel π-conjugated polymer compound capable of expecting an application as a functional material having a solubility, a heat resistance, an electrochemical activity and a fluorescence, and a method for producing the sam... | 12/09/2008 |
| 7442760 | Electroactive polymers Electroactive polymeric arylenes and intermediates useful for making such polymers are disclosed. The present invention also provides electroactive compositions comprising the electroactive polymeric arylenes, organic electronic devices which comprise these polymers... | 10/28/2008 |
| 7423112 | Polyether polyols containing pendant amine groups and a process for their preparation The present invention relates to novel polyether polyols containing pendant amine group and to a process for their preparation. These polyether polyols have molecular weights of from about 105 to about 35,000, and contain at least one terminal hydroxyl group and at ... | 09/09/2008 |
| 7417109 | Polymers for delivering nitric oxide in vivo Disclosed are novel polymers derivatized with at least one —NOx group per 1200 atomic mass unit of the polymer. X is one or two. In one embodiment, the polymer is an S-nitrosylated polymer and is prepared by reacting a polythiolated polymer with a nitro... | 08/26/2008 |
| 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 |
| 7405266 | Sterically hindered poly(ethylene glycol) alkanoic acids and derivatives thereof The invention provides a sterically hindered polymer that comprises a water-soluble and non-peptidic polymer backbone having at least one terminus covalently bonded to an alkanoic acid or alkanoic acid derivative, wherein the carbon adjacent to the carbonyl group of... | 07/29/2008 |
| 7368525 | Polymeric alkoyamines prepared by atom transfer radical addition (ATRA) The instant invention pertains to polymeric alkoxyamines, which are prepared by atom transfer radical addition polymerization (ATRA). Further aspects of the invention are a process for their preparation and their use as light stabilizers, flame retardants and polyme... | 05/06/2008 |
| 7363978 | Methods of using reactive surfactants in subterranean operations Novel uses of reactive surfactants in treating subterranean formations and/or proppant particulates are provided. In one embodiment, the present invention provides a method comprising: providing a treatment fluid that comprises a base fluid and a reactive surfactant... | 04/29/2008 |
| 7361728 | Electrically conducting materials from branched end-capping intermediates The present invention relates to a class of conducting oligomers and polymers and to a method for the preparation of the same. The conducting oligomers and polymers contain an end-capping group, which is non-electrically conductive and contains at least one branch p... | 04/22/2008 |
| 7348397 | Supramolecular polymers The invention relates to a supramolecular polymer containing units which are linked by hydrogen bonds, said units being monomers of prepolymers comprising at least one functional group selected from the functional groups (1) and (3) and a second functional group (5)... | 03/25/2008 |
| 7326389 | Method of producing unsaturated aldehyde and/or unsaturated acid Disclosed is a shell-and-tube reactor that may be used in a method for producing unsaturated aldehydes and/or unsaturated acids from olefins by means of fixed-bed catalytic partial oxidation. The reactor includes at least one reaction zone of a first-step reaction z... | 02/05/2008 |
| 7323539 | Polytrimethylene ether glycol and polytrimethylene ether ester with excellent quality A process is provided comprising contacting 1,3-propanediol with a suitable polymerization catalyst to produce polytrimethylene ether glycol or random polytrimethylene ether ester, wherein the 1,3-propanediol comprises about 10 microg/g or less peroxide compounds, b... | 01/29/2008 |
| 7323538 | Polymer having unique optical property and polymerizable monomer therefor A polymer compound having a functional group containing a cyclic part with aromatic properties comprising C, H and/or C, H, X (X is a hetero atom) in the side-chain, and a number average molecular weight of 250-1,000,000. The molar optical absorption due to the cycl... | 01/29/2008 |
| 7317121 | Preparation of aliphatic oligocarbonate polyols The present invention relates to an improved process for preparing aliphatic oligocarbonate polyols by transesterifying dimethyl carbonate (DMC) with an aliphatic polyol component. ... | 01/08/2008 |
| 7300993 | Process for the preparation of polyether polyols The invention relates to a process for the preparation of polyether polyols, which process involves: (a) contacting a phosphorus containing compound having at least one hydroxyl group with alkylene oxide to obtain alkoxylated initi... | 11/27/2007 |
| 7301003 | Method of preparing polymers having terminal amine groups The present invention is directed to methods of preparing linear polymers such as polyalkylene oxides containing a terminal amine in high purity. One preferred method includes reacting a polyalkylene oxide such as polyethylene glycol containing a terminal azide with... | 11/27/2007 |
| 7291668 | Composition containing polymer having ionic functional group, ink composition, and image-forming method and image-forming apparatus employing the ink composition The present invention provides an ink composition containing a pigment dispersed uniformly in a solvent and a block polymer having an ionic functional group, an image-forming method and an image-forming apparatus employing the ink composition. The composition... | 11/06/2007 |
| 7288609 | Coatings for drug delivery devices based on poly (orthoesters) A polymer coating for implantable medical devices based on polyorthoesters and methods for fabricating the coating are disclosed. The implantable medical devices made of polyorthoesters and methods for fabricating thereof are also disclosed. ... | 10/30/2007 |
| 7273909 | Polyethylene glycol aldehydes Polyethylene glycol aldehyde compounds are provided. Methods of making and using such compounds, as well as chemical intermediates are also provided. ... | 09/25/2007 |
| 7262221 | Amphiphilic star-like macromolecules for drug delivery The present invention provides polymeric compounds that can form micelles in solutions. These compounds have a hydrophobic, core that is coupled to a plurality of hydrophilic moieties. ... | 08/28/2007 |
| 7256251 | Methods of synthesis of polymers and copolymers from natural products Described are polymers and copolymers containing sorbitol, citric acid, starch, aspartic acid, succinic anhydride, adipic acid mixtures thereof, methods of their synthesis and their uses. ... | 08/14/2007 |
| 7250487 | Supramolecular polymers The invention relates to a supramolecular polymer containing units which are linked by hydrogen bonds, said units being monomers of prepolymers comprising at least one functional group selected from the functional groups (1) and (3) and a second functional group cho... | 07/31/2007 |
| 7244515 | Polymeric fluorescent substance and polymer light-emitting device using the same A polymeric fluorescent substance showing fluorescence in the solid state, having a polystyrene reduced number-average molecular weight of 103 to 108, and comprising one or more repeating units of formula (1) and one or more repeating units of ... | 07/17/2007 |
| 7244810 | Poly(trimethylene-ethylene ether) glycols A poly(trimethylene-ethylene ether)glycol is disclosed. The poly(trimethylene-ethylene ether)glycol is, preferably, prepared by the polycondensation of 1,3-propanediol reactant and ethylene glycol reactant. The composition is preferably used in breathable membranes,... | 07/17/2007 |
| 7241857 | Method for producing allyl compound, and ether or ester compound produced thereby A method for producing an allyl compound having a compositional formula different from that of an allyl starting material compound, which comprises reacting the allyl starting material compound with an oxygen nucleophilic agent in the presence of a catalyst containi... | 07/10/2007 |
| 7238772 | Preparation of polytrimethylene ether glycol and copolymers thereof The present invention relates to a process comprising using ionic liquids for the polycondensation of 1,3-propanediol reactants to produce polytrimethylene ether glycol and copolymers thereof. ... | 07/03/2007 |
| 7235620 | Polyester having π-conjugated group in side chain and charge transporting material using the same A polyester expressed by the following structural formula 1, and a charge transport material obtained by adding an electron acceptor compound or an electron donor compound to this polyester. In the aforesaid struct... | 06/26/2007 |
| 7230068 | Polymer derivatives The invention provides water-soluble compounds that include a polymer and at least one terminal azide or acetylene moiety. Also provided are highly efficient methods for the selective modification of proteins with PEG derivatives, which involves the selective incorp... | 06/12/2007 |
