Class / Patent application number | Description | Number of patent applications / Date published |
528321000 | Phosphorus- or sulfur-containing reactant | 9 |
20090259015 | MIXED CHARGE COPOLYMERS AND HYDROGELS - Nonfouling copolymers and hydrogels comprising positively charged repeating units or latent positively charged repeating units and negatively charged units or latent positively charged units. | 10-15-2009 |
20100036083 | Process For The Preparation Of Polyamides In The Presence of a Phosphonate - The invention relates to the preparation of polyamides in the presence of a phosphonate, which is already added at the beginning of the polycondensation or polyaddition process. The resulting prepolymer exhibits a high molecular weight and is almost colorless. A further aspect of the invention is the use of a phosphonate for increasing the molecular weight and modification of polyamides during polycondensation. | 02-11-2010 |
20100099840 | DIOXYPYRROLO-HETEROAROMATIC COMPOUNDS AND ORGANIC ELECTRONIC DEVICES USING THE SAME - The present invention relates to dioxypyrrolo-heterocyclic compounds and an organic electronic device using the same. The compound of the present invention satisfies the requirements for use in an organic electronic device such as an organic light emitting device, an organic thin film transistor, and an organic solar cell, for example, suitable energy levels, and the electrochemical and thermal stability, by introducing various substituents to the core structure, and also have amorphous or crystalline property depending on the Mnd of the substituents, to satisfy the characteristics individually required for each of the devices. Further, an organic semi-conductor of p-type or n-type can be fabricated by introducing various substituents to the core structure having a property of n-type, thereby providing stability for the device. | 04-22-2010 |
20100298525 | Functionalized water-soluble polyphosphazenes and uses thereof as modifiers of biological agents - A polyphosphazene polymer which includes hydrophilic side groups and interacting side groups which are capable of bonding with a biological agent of interest. The bonding may be by non-covalent bonding. | 11-25-2010 |
20110009594 | MULTIFUNCTIONAL FORMS OF POLYOXAZOLINE COPOLYMERS AND DRUG COMPOSITIONS COMPRISING THE SAME - The present disclosure provides copolymers of 2-substituted-2-oxazolines possessing two or three reactive functional groups which are also chemically orthogonal. The copolymers described may be random copolymers, block copolymers or a mixture of random and block copolymer configurations. Furthermore, the present disclosure provides novel methods for synthesizing the above polymers and for conjugating to molecules such as targeting, diagnostic and therapeutic agents. | 01-13-2011 |
20110213117 | Organic Semiconducting Polymers - Disclosed are new organic semiconducting polymers. The polymers disclosed herein can exhibit high carrier mobility and/or efficient light absorption/emission characteristics, and can possess certain processing advantages such as solution-processability and/or good stability at ambient conditions. | 09-01-2011 |
20110319587 | METHOD FOR MANUFACTURING POLYARYLENE SULFIDE RESIN - A method for producing a polyarylene sulfide resin includes allowing a polyhaloaromatic compound (a), an alkali metal hydrosulfide (b), and an organic acid alkali metal salt (c) to react with each other in the presence of a solid alkali metal sulfide and an aprotic polar organic solvent, wherein the reaction is conducted using the organic acid alkali metal salt (c) in a ratio of 0.01 moles or more and less than 0.9 moles relative to a total of 1 mole of the solid alkali metal sulfide and the alkali metal hydrosulfide (b) in a state where the amount of water existing in the reaction system is 0.02 moles or less relative to 1 mole of the aprotic polar organic solvent. Thus, it is possible to provide a method for producing a polyarylene sulfide resin with which high productivity is achieved on an industrial scale, and the molecular weight of the resulting polyarylene sulfide resin can be significantly increased. | 12-29-2011 |
20130085256 | FUSED THIOPHENES, METHODS OF MAKING FUSED THIOPHENES, AND USES THEREOF - Described herein are compositions including heterocyclic organic compounds based on fused thiophene compounds, polymers based on fused thiophene compounds, and methods for making the monomers and polymer along with uses in thin film-based and other devices. | 04-04-2013 |
20160130390 | HYPERBRANCHED AMINO ACID-BASED POLY(ESTER UREA)S FOR REGENERATIVE MEDICINE AND DRUG DELIVERY - One or more embodiments of the present invention provide a hyperbranched amino-acid-based PEU polymer for use in regenerative medicine and/or drug delivery applications has tunable mechanical and thermal properties, but is sufficiently stable to permit such things as ethyloxide sterilization without degradation and/or significant loss of function. These hyperbranched amino acid-based poly(ester urea) (PEU) by interfacial polycondensation between linear and branched amino acid-based polyester monomers and a urea forming material such as trisphosgene or phosgene. By controlling the amount of branched monomer incorporated into the copolymer, the mechanical properties and water uptake abilities of the resulting hyperbranched amino acid-based PEUs may be tuned. The hyperbranched PEUs nanofibers are sterilizable with ETO and are stable for long periods of ETO sterilization, elevated temperature and exposure to aqueous environments. In various embodiments, these hyperbranched amino acid-based PEUs are also biodegradable and can be formed into fibers. | 05-12-2016 |