Class / Patent application number | Description | Number of patent applications / Date published |
528405000 |
With reactant which is devoid of a heterocyclic ring containing oxygen, selenium or tellurium atoms as ring members
| 79 |
528408000 |
Polymerizing in the presence of a specified material other than a reactant
| 44 |
528421000 |
Reactant has a three-membered ring containing oxygen and two carbon atoms, i.e., 1,2-epoxy
| 21 |
528418000 |
Reactant contains two or more rings each of said rings having a single oxygen and two carbon atoms
| 8 |
528417000 |
Reactant contains a single hetero-atom in a ring and at least three carbon atoms, e.g., oxetane, etc. | 3 |
20080200641 | AMINO ACID SUBSTITUTED MOLECULES - The invention provides compositions and methods of identifying, modifying and producing modified target molecules, including therapeutic molecules by modification with non-natural amino acids. Certain aspects of the invention include methods of adding a chemical moiety to a target molecule, and the compositions resulting therefrom. Certain aspects of the invention also relate to kits for identifying, modifying and producing modified target molecules described herein. | 08-21-2008 |
20080214779 | Polymers with pendant alkyl chains - A hydrophobic polymer made by incorporating alkyl chains pendant to the main backbone of the polymer. Alkyl chains of from about 6 to over 22 carbons are fatty compounds well known in the art. The present invention allows linking such chains from commercially available starting materials. It is well known that starting materials such as tallow diamine or ethoxylated tallow amine typically contain a mixture of chain lengths with varying degrees of branching and unsaturation. The unsaturated positions in the final polymer can be made to cross-link in the presence of a catylst and UV light to increase the hardness and reduce the effect of heat and solvent borne exposures. The present invention can be a replacement to current monomers or additive to common polymers to replace or modify the current polymers to alter the properties of the polymer or economics. The present invention adds the known benefits of fatty compounds to common polymers such as hydrophobicity, or alter the HLB (hydrophilic lipophilic balance) of polymeric surfactants. The present invention is directed primarily to urea, urethane, and urea-urethane linkages, but is expected to be useful in the incorporation of pendant alkyl structures in other types of polymers that use an amine, carboxcylic acid or alcohol group to form the linkage. Other polymer types which can utilize this invention that are obvious to one skilled in the art include, but are not limited to the following: polyamide, polyester, polycarbonate, polyether, polysiloxane, epoxy. | 09-04-2008 |
20110196126 | VAPOR-PHASE DECARBONYLATION PROCESS - A process is provided for the synthesis of furan and related compounds by vapor phase decarbonylation of furfural and derivatives. The reaction rate, conversion, and selectivity are enhanced by adding water to the feed. The process can be run at lower temperatures than in similar processes run with essentially dry furan and related compounds. | 08-11-2011 |
528420000 |
Reactant has a three-membered ring of oxygen and two carbon and contains a nitrogen atom | 2 |
20150353684 | HIGHLY SOLUBLE TRIS- (2, 3-EPOXYPROPYL)- ISOCYANURATE AND METHOD FOR PRODUCING SAME - There is provided an epoxy composition which has difficulty in precipitating a crystal during storage, is homogeneous and can be stored for a long period; and a cured product of the composition having excellent transparency, heat resistance, and light resistance can be obtained on curing. An α-type tris-(2,3-epoxypropyl)-isocyanurate crystal including β-type tris-(2,3-epoxypropyl)-isocyanurate in the crystal in a ratio of 2% by mass to 15% by mass. A method for producing the α-type tris-(2,3-epoxypropyl)-isocyanurate crystal including step (i) separating β-type tris-(2,3-epoxypropyl)-isocyanurate contained in a tris-(2,3-epoxypropyl)-isocyanurate solution from the solution as a solid to obtain a crystal with an increased content ratio of α-type tris-(2,3-epoxypropyl)-isocyanurate. | 12-10-2015 |
20160168314 | MECHANO-RESPONSIVE COMPOSITION | 06-16-2016 |
528419000 |
Two or more heterocyclic reactants containing rings of one oxygen and two carbon atoms | 1 |
20100056753 | METHOD OF PRODUCING A POLY (ETHYLENE OXIDE ) COPOLYMERISED WITH AT LEAST ONE OTHER ALKYLENE OXIDE - The present invention relates to a method of producing a poly(ethylene oxide) copolymerized with one alkylene oxide and to a poly(ethylene oxide-co-alkylene oxide) copolymer produced by such method, a photovoltaic device containing such poly(ethylene oxide-co-alkylene oxide)-copolymer, and to uses of such poly(ethylene oxide)-(alkylene oxide)-copolymer. | 03-04-2010 |
Entries |
Document | Title | Date |
20080214778 | Method For Producing Polyether Alcohols - The invention provides a process for continuously preparing polyether alcohols using DMC catalysts, which comprises, in a first step, in a continuous reactor, adding alkylene oxides onto H-functional starter substances and transferring the output of this reactor to a second step in a reactor which is divided by closed trays into mutually separate sections, known as compartments, which are connected to one another by external pipelines, in which the output of the reactor from the first step of the reaction passes through the compartments in succession. | 09-04-2008 |
20090105447 | Novel Polymers -
The present invention relates to polymers comprising a repeating unit of the formula (I), and their use in electronic devices. The polymers according to the invention have excellent 5 solubility in organic solvents and excellent film-forming properties. In addition, high charge carrier mobilities and high temperature stability of the emission color are observed, if the polymers according to the invention are used in polymer light emitting diodes (PLEDs). | 04-23-2009 |
20090187003 | THERMOSETTING RESIN, THERMOSETTING COMPOSITION CONTAINING SAME, AND MOLDED PRODUCT OBTAINED FROM SAME - An object of the invention is to provide a thermosetting resin excellent in dielectric characteristics and heat resistance, and to provide a thermosetting composition comprising the thermosetting resin, as well as a molded product, substrate material for electronic devices and so forth obtained from the thermosetting resin. The present invention provides a thermosetting resin having a dihydrobenzoxazine ring structure represented by formula (I) in a main chain thereof, a thermosetting composition comprising the thermosetting resin, as well as a molded product, substrate material for electronic devices and so forth obtained from the thermosetting resin. | 07-23-2009 |
20090270587 | 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-temperature notched impact strength associated with a high modulus of elasticity. | 10-29-2009 |
20090306335 | MULTIFUNCTIONAL DEGRADABLE NANOPARTICLES WITH CONTROL OVER SIZE AND FUNCTIONALITIES - In one aspect, the invention relates to polymers, crosslinked polymers, functionalized polymers, nanoparticles, and functionalized nanoparticles and methods of making and using same. In one aspect, the invention relates to degradable polymer and degradable nanoparticles. In one aspect, the invention relates to methods of preparing degradable nanoparticles and, more specifically, methods of controlling particle size during the preparation of degradable nanoparticles. In one aspect, the degradable nanoparticles are useful for complexing, delivering, and releasing payloads, including pharmaceutically active payloads. This abstract is intended as a scanning tool for purposes of searching in the particular art and is not intended to be limiting of the present invention. | 12-10-2009 |
20100063249 | PROTON-CONDUCTING COMPOUND AND PROTON-CONDUCTING POLYMER - Provided is a proton-conducting compound which provides proton conductivity without humidification and is suitable for electrochemical device materials such as solid electrolytes for fuel cells and electrolytes for batteries. Provided also is a proton-conducting polymer. The proton-conducting compound is composed of a melamine compound salt obtained from a melamine compound represented by the following formula (1) and a Bronsted acid and the proton-conducting polymer is obtained by homopolymerizing or copolymerizing the melamine compound salt. In formula (1), R | 03-11-2010 |
20100145004 | RIGID-ROD COPOLYMER COMPOSITIONS AND THE POLYMERIC FIBERS FABRICATED FROM THOSE COMPOSITIONS FOR ENHANCED FLAME RESISTANCE - Rigid-rod copolymer compositions incorporating PBO (poly(p-phenylenebenzobisoxazole)), DiOH-PBO (poly(2,5-dihydroxy-1,4-phenylenebenzobisoxazole), DiOH-PBI (poly(2,5-dihydroxy-1,4-phenylenebenzobisimidazole)), DiOH-PyBI (poly(2,5-dihydroxy-1,4-phenylenepyridobisimidazole), PBZT (poly(p-phenylenebenzobisthiazole)) and its corresponding dihydroxy analogues attached to a flexibilizing hexafluoroisopropylidene linkage are described. Also described are their fabrication into fibers by a dry jet wet spinning technique and the measured fiber mechanical properties. The copolymer compositions are highly flame-resistant and have potential utility for fire-protective clothing. | 06-10-2010 |
20100249368 | Multi-Armed Forms of Activated Polyoxazoline and Methods of Synthesis Thereof - The present disclosure provides novel POZ-2 derivatives, methods for synthesizing POZ-2 derivatives and intermediates useful in such methods. In one embodiment, the POZ-2 derivative comprises two linear POZ chains of the present disclosure linked directly or indirectly to a branching moiety that contains a functional group for linking the POZ-2 derivative to the target molecule. Target molecule-POZ-2 conjugates are also described. In certain embodiment, the POZ-2 derivatives have low polydispersity values and a decreased amount of impurities produced by unwanted side reactions, such as, but not limited to, chain transfer. | 09-30-2010 |
20100280219 | OLIGOCARBONATE MOLECULAR TRANSPORTERS - A cyclic carbonate monomer, including: | 11-04-2010 |
20130102756 | NOVEL CURING AGENTS - A curable resin comprising a compound having the structure (I): wherein each carbon 2, together with either its carbon 1 or carbon 3, arc members of a fused cycloaliphatic ring, and when carbon 1 is a member of the ring so is N, and wherein each of the aliphatic or aromatic ring-member carbons may either be members of further fused cycloaliphatic rings or be bonded to a group selected from H or linear or branched C | 04-25-2013 |
20130144030 | EPOXY COMPOUND, CURABLE COMPOSITION, AND CURED PRODUCT THEREOF - A problem to be solved by the invention is to provide a novel epoxy resin exhibiting excellent performance with respect to heat resistance and low thermal expansibility of a cured product, a curable composition using the same, and a cured product having excellent heat resistance and low thermal expansibility. The curable composition contains an epoxy compound and a curing agent as essential components, a calixarene-type novel epoxy compound being used as the epoxy compound. The novel epoxy compound has a resin structure represented by structural formula 1 below (in the formula, R | 06-06-2013 |
20140329988 | Integrated Process for Producing Cyclic Acetals and Oxymethylene Polymers - A process for producing cyclic acetals is described. A formaldehyde source is contacted with an aprotic compound in the presence of a catalyst to produce the cyclic acetals. The aprotic compound can increase conversion rates and/or efficiency. In one embodiment, the formaldehyde source is obtained from methanol. In particular, methanol can be converted into formaldehyde which is then converted into a cyclic acetal. In one embodiment, the cyclic acetal can then be used to produce oxymethylene polymers. | 11-06-2014 |
20140350216 | Process for Producing A Cyclic Acetal In A Heterogeneous Reaction System - A process for producing a cyclic acetal is disclosed. According to the process, a formaldehyde source is combined with an aprotic compound and contacted with a heterogeneous catalyst which causes the formaldehyde source to convert into a cyclic acetal such as trioxane. The catalyst, for instance, may comprise a solid catalyst such as an ion exchange resin. In one embodiment, the process is used for converting anhydrous formaldehyde gas to trioxane. The anhydrous formaldehyde gas may be produced form an aqueous formaldehyde solution by an extractive distillation. | 11-27-2014 |
20160168324 | TRIOXANE COMPOSITION AND METHOD FOR STORING THE SAME | 06-16-2016 |