| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 526204000 | Material contains heterocyclic compound | 39 |
| 20080234453 | Method of Preparing Ethylene Polymers by Controlled High Pressure Polymerization - The present invention relates to a method for the radical polymerization or copolymerization of ethylene at high pressures using a hydroxylamine ester as radical initiator. The hydroxylamine esters according to the invention are suitable initiators for the high pressure polymerization of ethylene leading to high molecular weight polyethylenes with narrow molecular weight distributions (Polydispersed Index PD=1.2−4.5). | 09-25-2008 |
| 20080249268 | Method For Producing a Polyisobutene - The invention relates to a process for preparing polyisobutene having a mean molecular weight M | 10-09-2008 |
| 20090088544 | OPHTHALMIC AND OTORHINOLARYNGOLOGICAL DEVICE MATERIALS CONTAINING AN ALKYL ETHOXYLATE - Disclosed are soft, high refractive index, acrylic device materials. The materials contain a functionalized alkyl ethoxylate to reduce glistenings. | 04-02-2009 |
| 20090093601 | Photochromic Compounds Comprising Polymeric Substituents And Methods For Preparation And Use Thereof - The present invention relates to a compound comprising a photochromic moiety and at least one substituent comprising a polymer chain having a carbon backbone and a plurality of functional moieties appended to the carbon backbone. | 04-09-2009 |
| 20090198028 | 1,2-dithiol-3-thiones as chain-transfer agents in free-radical polymerization reactions - The present invention relates to a process for the preparation of polymers by controlled free radical polymerization of monomers capable of free radical polymerization in the presence of 1,2-dithiol-3-thiones as chain transfer agents. | 08-06-2009 |
| 20090292092 | HYPERBRANCHED MALEIC ANHYDRIDE-DIENE POLYMERS - A hyperbranched polymer having pendent olefinic groups and comprising polymer units derived from one or more terminally-unsaturated, acyclic aliphatic diene and polymer units derived from maleic anhydride. Optionally, the hyperbranched polymer may further comprise polymer units derived from one or more 1-alkenes and/or a chain transfer agent. A process to prepare the hyperbranched polymer comprises contacting maleic anhydride with at least one terminally unsaturated acyclic aliphatic diene having at least 7 carbon atoms in the presence of an effective amount of a radical initiator in an aprotic solvent under dilute conditions. | 11-26-2009 |
| 20100048845 | Hyperbranched polymer and method for producing the same - Disclosed is a novel optically stable hyperbranched polymer whose molecular terminal can be derivatized with various compounds; and a method for producing such a polymer. Specifically disclosed is a hyperbranched polymer having a structure represented by Formula (1) | 02-25-2010 |
| 20100063231 | HYPERBRANCHED MALEIC ANHYDRIDE-DIENE POLYMERS - A hyperbranched polymer having pendent olefinic groups and comprising polymer units derived from one or more terminally-unsaturated, acyclic aliphatic diene and polymer units derived from maleic anhydride. Optionally, the hyperbranched polymer may further comprise polymer units derived from one or more 1-alkenes and/or a chain transfer agent. A process to prepare the hyperbranched polymer comprises contacting maleic anhydride with at least one terminally unsaturated acyclic aliphatic diene having at least 7 carbon atoms in the presence of an effective amount of a radical initiator in an aprotic solvent under dilute conditions. | 03-11-2010 |
| 20100160583 | Polymerisation of Ethylene and Alpha-Olefins with Pyridino-Iminophenol Complexes - The present invention relates to the field of single site catalyst systems based on pyridine-iminophenol, pyridine-iminoalcohol or pyridine-iminoamine complexes and suitable for oligomerising or homo- or co-polymerising ethylene and alpha-olefins. | 06-24-2010 |
| 20100210800 | METHOD OF PREPARING ETHYLENE POLYMERS BY CONTROLLED HIGH PRESSURE POLYMERIZATION - The present invention relates to a method for the radical polymerization or copolymerization of ethylene at high pressures using a hydroxylamine ester as radical initiator. The hydroxylamine esters according to the invention are suitable initiators for the high pressure polymerization of ethylene leading to high molecular weight polyethylenes with narrow molecular weight distributions (Poyldispersity Index PD=1.2-4.5). | 08-19-2010 |
| 20100273965 | POLYMERIC ADDITIVES OBTAINED BY SALIFICATION OF COPOLYMERS - The present invention relates to a salified copolymer that can be obtained by salification, in an aqueous medium, using at least one amine containing at least one nitrogenous heterocyclic group, of a copolymer obtained from at least one cyclic anhydride-based or carboxylic acid-based monomer and from at least one styrene-based monomer, such as a styrene/maleic anhydride (SMA) copolymer. It also relates to the process for producing this salified copolymer, to a composition containing same, and also to the use of this composition for surface-treating, in particular coating, sizing and finishing, paper or cardboard. | 10-28-2010 |
| 20110009583 | FUNCTIONALIZED POLYMERS AND INITIATORS FOR MAKING SAME - A polymer includes at a terminus a cyclic amine radical bonded to the polymer through a ring nitrogen atom. The polymer can be provided by using a lithiated version of the cyclic amine to initiate polymerization of one or more ethylenically unsaturated monomers. The polymer can be used in the production in a variety of vulcanizates. | 01-13-2011 |
| 20110124832 | NOVEL LIVING RADICAL POLYMERIZATION METHOD USING ALCOHOL AS CATALYST - Provided is a low-cost, environmentally friendly living radical polymerization catalyst having high activity. The catalyst is used for a living radical polymerization method, and contains a central element consisting of oxygen and at least one halogen atom bound to the central element. Furthermore, an alcohol compound can be used as a catalyst precursor. By polymerizing a monomer in the presence of the catalyst, a polymer having narrow molecular weight distribution can be obtained, and the cost of the living radical polymerization can be remarkably reduced. The present invention is significantly more environmentally friendly and economically excellent than conventional living radical polymerization methods, due to advantages of the catalyst such as low toxicity of the catalyst, low amount of the catalyst necessary, high solubility of the catalyst, mild reaction conditions, and no coloration/no odor (which do not require a post-treatment for a molded article), and the like. | 05-26-2011 |
| 20110160415 | Method for manufacturing fluoropolymers - The invention pertains to a method for making a fluoropolymer comprising an aqueous emulsion polymerization of one or more fluorinated monomers wherein said aqueous emulsion polymerization is carried out in the presence of at least one cyclic fluorocompound of the following formula (I): | 06-30-2011 |
| 20110201772 | PROCESS FOR PREPARING HIGH-REACTIVITY ISOBUTENE HOMO- OR COPOLYMERS - Preparation of high-reactivity isobutene homo- or copolymers with a content of terminal vinylidene double bonds per polyisobutene chain end of at least 50 mol % and a polydispersity of preferably 1.05 to less than 3.5, by polymerizing isobutene or an isobutene-comprising monomer mixture in the presence of an aluminum trihalide-donor complex effective as a polymerization catalyst or of an alkylaluminum halide-donor complex, especially of an aluminum trichloride-donor complex, said complex comprising, as the donor, an organic compound with at least one ether function or a carboxylic ester function. | 08-18-2011 |
| 20110288251 | POLYMERISATION INITIATOR - The invention relates to novel O-dialkylamino-isoureas and polymerizable compositions comprising these O-dialkylamino-isoureas of compounds of the general formula (I). The invention further relates to the use of O-dialkylamino-isoureas as polymerization initiators, especially to prepare coatings or for controlled degradation of polyolefins. | 11-24-2011 |
| 20120004381 | RAFT POLYMERISATION - A method of preparing polymer, the method comprising polymerising one or more ethylenically unsaturated monomers of formula (I) | 01-05-2012 |
| 20120022226 | MONO-HYDROINDACENYL COMPLEXES - The present invention relates to monohydroindacenyl complexes as active catalytic components in the copolymerization of ethylene. The complexes are suitable for direct preparation of ethylene copolymers having a narrow molecular distribution as well as the desired levels of low density and preferably a predetermined value of glass transition temperature T | 01-26-2012 |
| 20120046430 | Transportable and Safely Packaged Organic Peroxide Formulations - The present invention relate to a packaged peroxide formulation which comprises a container and a liquid peroxide formulation, wherein: said container has a volume of at least 50 litres, said liquid peroxide formulation comprises (i) 51 to 59 wt % of an organic peroxides selected from the group consisting of peroxyesters, their derivatives, and mixtures thereof, and (ii) optionally an additive selected from the group consisting of a phlegmatiser. The invention also relates to a method to safely produce, handle and transport a packaged organic peroxide formulations as defined above. | 02-23-2012 |
| 20120157641 | CURE ACCELERATORS FOR ANAEROBIC CURABLE COMPOSITIONS - The present invention relates to cure accelerators useful for anaerobic curable compositions, such as adhesives and sealants. | 06-21-2012 |
| 20120190807 | AQUEOUS EMULSION POLYMERIZATION PROCESS FOR PRODUCING FLUOROPOLYMERS - A method of making a fluoropolymer in the presence of a fluorinated surfactant. | 07-26-2012 |
| 20120245314 | Process for the Production of Polyolefin Films - A process for the production of a corona-treated polyolefin film comprising the gas-phase polymerization of one or more α-olefins in the presence of a polymerization catalyst and an antistatic agent having a molecular weight higher than 500, said antistatic agent being fed at any stage of the polymerization process in an amount from 30 to 500 ppm weight based on the weight of the produced polyolefin | 09-27-2012 |
| 20120302711 | Process for Continuously Producing Water-Absorbing Polymer Particles - A process for continuously producing water-absorbing polymer particles, in a continuous polymerization reactor, wherein the amount of initiator used and/or the intensity of the UV radiation optionally used to initiate the polymerization is reduced after the startup of the polymerization reactor. | 11-29-2012 |
| 20120309917 | Process for Continuously Producing Water-Absorbing Polymer Particles - A process for continuously producing water-absorbing polymer particles by polymerizing a monomer solution comprising acrylic acid and/or salts thereof, wherein the acrylic acid supplied has a dimeric acrylic acid content of at least 0.02% by weight and the dimeric acrylic acid content is kept essentially constant. | 12-06-2012 |
| 20130059995 | PROCESS FOR PREPARING HIGH-REACTIVITY ISOBUTENE HOMO- OR COPOLYMERS - Preparation of high-reactivity isobutene homo- or copolymers with a content of terminal vinylidene double bonds per polyisobutene chain end of at least 50 mol % and a polydispersity of preferably 1.05 to less than 3.5, by polymerizing isobutene or an isobutene-comprising monomer mixture in the presence of an aluminum trihalide-donor complex effective as a polymerization catalyst or of an alkylaluminum halide-donor complex, especially of an aluminum trichloride-donor complex, said complex comprising, as the donor, an organic compound with at least one ether function or a carboxylic ester function. | 03-07-2013 |
| 20130079480 | METHOD FOR PRODUCING DIALLYLAMINE ACETATE POLYMER - Provided is a method for producing a diallylamine acetate polymer comprising polymerizing diallylamine acetate in water or a polar solvent in the presence of a radical initiator, the radical initiator being an organic acid addition salt of a specific cyclic amidinoazo compound, and a diallylamine acetate polymer solution free of halogen. | 03-28-2013 |
| 20130150542 | Method Of Preparing Ethylene Polymers By Controlled High Pressure Polymerization - The present invention relates to a method for the radical polymerization or copolymerization of ethylene at high pressures using a hydroxylamine ester as radical initiator. The hydroxylamine esters according to the invention are suitable initiators for the high pressure polymerization of ethylene leading to high molecular weight polyethylenes with narrow molecular weight distributions (Poyldispersity Index PD=1,2−4.5). | 06-13-2013 |
| 20130274431 | Methacrylic Resin and Method for Preparing the Same - Disclosed herein is a methacrylic resin prepared using a mercaptan and a lactam as an initiation system. The methacrylic resin includes an alkyl(meth)acrylate unit and a (meth)acrylamide unit, and has a weight average molecular weight of about 50,000 g/mol to about 500,000 g/mol and a glass transition temperature of about 125° C. to about 145° C. | 10-17-2013 |
| 20140011972 | CARBOCATALYSTS FOR POLYMERIZATION - Provided herein are novel processes for synthesis of polymers and/or polymer composites. | 01-09-2014 |
| 20140309391 | Acryl-based Copolymer Having Superior Heat Resistance and a Method for Manufacturing the Same - The acrylic copolymer according to the present invention has a specific repeating unit and includes, in a chain, a methacrylate unit, a glutaric anhydride unit, or a mixture thereof in the amount of 0 to 1 ppm. | 10-16-2014 |
| 20150051362 | AMIDE-LINKED PERFLUOROPOLYETHER THIOL COMPOUNDS AND PROCESSES FOR THEIR PREPARATION AND USE - A perfluoropolyether thiol compound comprises a perfluoropolyether segment, at least one mercapto group (—SH), and at least one intervening divalent carbonylimino moiety (—C(═O)—NR—, wherein R is hydrogen or alkyl). The compound can be produced, for example, by a ring-opening reaction of thiolactones with perfluoropolyether-substituted, primary or secondary amines. The compound can be used, for example, as a polymerization chain transfer agent, as an intermediate for the preparation of functional group-containing fluorochemical derivatives such as disulfides, and as a fluorinated surface treatment. | 02-19-2015 |
| 20150073110 | METHODS FOR ACTIVATING POLYMERIZABLE COMPOSITIONS, POLYMERIZABLE SYSTEMS, AND PRODUCTS FORMED THEREBY - The exemplary embodiments disclosed herein relate to activating methods for initiation polymerization of methylene malonates and other polymerizable compositions. The polymerization may be activated by anionic or free radical mechanisms. Because the polymerization may occur very quickly upon contact between the activating agent and the polymerizable composition, methods are provide herein for separating or otherwise rendering the activating agent ineffective to initiate polymerization, until such a reaction is desired. The separation may be physical (separate packaging, separate application steps, encapsulation) or it may be based on latent-activation methods (activation precursors, UV activation). Products formed from the methods disclosed herein may include inks, adhesives, coatings, sealants, reactive moldings, fibers, films, sheets, medical polymers, composites, laminates and the like. Exemplary polymerizable compositions and products formed therefrom are environmentally sustainable, environmentally benign and/or biologically benign. | 03-12-2015 |
| 20150112035 | POLYMERIZABLE LIQUID CRYSTAL COMPOUND, A LIQUID CRYSTAL COMPOSITION COMPRISING THE COMPOUND, AND AN OPTICALLY ANISOTROPIC BODY COMPRISING THE SAME - The present invention relates to a polymerizable liquid crystal compound, a liquid crystal composition including the same, and an optically anisotropic body. The polymerizable liquid crystal compound according to the present invention has not only large solubility in various solvents but also high birefringence and excellent coating orientation, and thus it can provide an optically anisotropic body which is thin but superior in optical properties. | 04-23-2015 |
| 20150126696 | POLYMERIZATION USING LATENT INITIATORS - The present invention relates to a novel, rapid initiation mechanism for polymerising (meth)acrylates using latent initiators based on N-heterocyclic carbene compounds which can be thermally activated, such as, in particular, N-heterocyclic carbene-CO | 05-07-2015 |
| 20150361197 | INITIATION OF CONTROLLED RADICAL POLYMERIZATION FROM LACTIDE MONOMER - A lactide-functionalized polymer is synthesized by polymerizing a monomer capable of undergoing radical polymerization (e.g., styrenic, vinylic, acrylic, etc.) using a brominated lactide initiator via atom transfer radical polymerization (ATRP). In some embodiments of the present invention, the brominated lactide initiator is 3-bromo-3,6-dimethyl-1,4-dioxane-2,5-dione prepared by reacting lactide with N-bromosuccinimide in the presence of benzoyl peroxide. | 12-17-2015 |
| 20160046749 | PHOTOACID GENERATOR COMPOUND, POLYMER COMPRISING END GROUPS CONTAINING THE PHOTOACID GENERATOR COMPOUND, AND METHOD OF MAKING - A compound has formula (I): | 02-18-2016 |
| 526205000 | Sulfur and nitrogen together in a single ring | 3 |
| 20110166306 | Methods For Extensive Dark Curing Based on Visible-Light Initiated, Controlled Radical Polymerization - Optimized methods to achieve extensive dark curing from a three-component visible light-initiated system though controlled radical polymerization and compositions useful in these optimized methods are provided. These compositions and methods are particularly suited for use in certain dental applications. | 07-07-2011 |
| 20120226006 | NOVEL INITIATION METHOD FOR POLYMERIZING (METH)ACRYLATES - The invention relates to a novel polymerization method for (meth)acrylates, wherein the polymerization is initiated by isocyanates and special bases having an imine structure. By means of said novel method that can be deliberately employed, even high-molecular-weight poly(meth)acrylates having in part a narrow molecular weight distribution can be produced. Furthermore, a wide variety of polymer architectures, such as block, star or comb polymers, are available using said novel polymerization method. | 09-06-2012 |
| 20130317188 | CONTROLLED, IMINE BASE-INITIATED POLYMERIZATION - The present invention relates to an innovative polymerization technique for (meth)acrylates or styrenes, in which a special base with imine structure is added as a latent initiator, and the polymerization can be initiated without adding a coinitiator, at high temperatures. With this new and selectively employable technique it is also possible to produce high molecular weight poly(meth)acrylates having in some cases narrow molecular weight distribution. Furthermore, employing this new polymerization technique, a wide variety of different polymer architectures is available, such as block, star, or comb polymers. | 11-28-2013 |
