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9023979 Precise control of molecular weight and chain shape control in carbon dioxide/epoxide alternating copolymerization and preparation of low molecular weight poly(alkylene carbonate) thereby  
This invention relates to a method of preparing poly(alkylene carbonate) that has a molecular weight and polymer chain structure precisely controlled by adding a chain transfer agent composed of a...
8993709 Process for producing oxymethylene polymers  
The present invention relates to a process for the preparation of oxymethylene polymers, the oxymethylene polymers obtained therefrom as well as their use.
8986590 Polymer article and method for producing polymer article  
Provided are a polymer article excellent in mechanical strength, toughness, and stretchability and a production method of the polymer article. The polymer article of the present invention is...
8969425 Separation of components of plastic  
The present invention relates to a process for separating two or more components of a plastic material for the purposes of recycling, with particular application to purifying poly(ethylene...
8952126 Purification of functionalized triblock copolymers via methanol trituration  
A method of making a pure block copolymer includes forming a crude block copolymer; heating a solution of the crude block copolymer and alcohol; and cooling the solution to promote precipitation...
8945598 Low temperature drying methods for forming drug-containing polymeric compositions  
The present invention relates to a process for reducing solvent contents in drug-containing polymeric compositions. Specifically, the solvent contents in the drug-containing polymeric compositions...
8916618 Recycling an organic-matrix composite material  
The invention is directed to a method for recycling an organic-matrix composite material. The organic-matrix composite material comprises a first component comprising at least one organic matrix...
8912307 Flame-retarding carbon dioxide/epoxide copolymer and method for preparing the same  
There is provided a method for preparing a low-molecular weight poly(alkylene carbonate) of which the molecular weight and chain shape are precisely controlled, by introducing a phosphorous...
8883867 Compositions and methods for recycling plastics comprising polymers via solvent treatment  
Compositions containing a turpentine liquid and methods are disclosed for dissolving, dissolving via melting, selectively dissolving via melting, decomposing plastic comprising a...
8871898 Method for preparing carbon dioxide/epoxide copolymers containing ether linkages  
Provided is a method for preparing poly(alkylene carbonate) containing ether linkages, by the copolymerization of an epoxy compound and carbon dioxide, with a trivalent metal complex prepared from...
8865781 Processing of waste material  
A method of processing waste carpet or matting material to separate constituent materials thereof, includes optionally drying the material and then cooling the material to a temperature at which...
8859720 Method for preparing polyarylene sulfide  
The present invention relates to a method for preparing polyarylene sulfide, in which the polyarylene sulfide is prepared by a polymerization reaction of reactants including a diiodo aromatic...
8841412 Controlling moisture in and plasticization of bioresorbable polymer for melt processing  
Methods and systems for controlling the moisture content of biodegradable and bioresorbable polymer resin during extrusion above a lower limit that allows for plasticization of the polymer resin...
8809489 Methods for preparing polymeric reagents and compositions of polymeric reagents  
Methods for preparing active carbonate esters of water-soluble polymers are provided. Also provided are other methods related to the active carbonate esters of water-soluble polymers, as well as...
8809486 Methods for producing and purifying 2-aryl-3,3-bis(4-hydroxyaryl)phthalimidine compounds, the purified monomers, and polymers derived therefrom  
Disclosed is a method for producing a purified 2-aryl-3,3-bis(4-hydroxyaryl)phthalimidine of formula (I) wherein R1 is hydrogen or a C1-25 hydrocarbyl group and R2 is a hydrogen, a C1-25...
8785592 Preparation of poly(alkylene carbonate) containing cross-linked high molecular weight chains  
Provided is preparation of poly(alkylene carbonate) through alternating copolymerization of carbon dioxide and epoxide. According to the disclosure, by introducing a diepoxide compound to...
8771583 Polyester composition and method for preparing articles by extrusion blow molding  
Polyester compositions described herein have properties which are particularly suitable for extrusion blow molding (EBM). These properties relate primarily to the rate of crystallization and melt...
8772444 Method for producing petroleum resin  
A method for producing a petroleum resin including removing a low-molecular mist by means of a filter.
8765904 Polyetheramines, compositions including polyetheramines, and methods of making  
Embodiments of the present disclosure include polyetheramines, methods of making polyetheramine, methods of using polyetheramine, and the like.
8748562 Process for preparing high molecular weight polyesters  
A process for producing higher molecular weight polyester includes heating a polyester to form a melt, and applying and maintaining a vacuum of between about 5 mm and about 85 mm of mercury to the...
8748557 Extreme low formaldehyde emission UF resin with a novel structure and its preparation  
The present invention relates to an extreme low formaldehyde emission UF resin with a novel structure, and a process for its preparation. This UF resin is produced from formaldehyde, urea, a long...
8741972 Recycled polyethylene terephthalate compositions, fibers and articles produced therefrom, and methods for producing same  
In one aspect, the invention relates to recycled polyethylene terephthalate compositions, fibers and articles produced therefrom, and methods for producing same. In a further aspect, the invention...
8735537 Methods of producing polyanthracene and uses thereof  
The present application provides methods of producing polyanthracene including polymerization of anthracene monomers in the presence of oxidants and reaction solvents. The present application...
8735457 Recycled polyethylene terephthalate compositions, fibers and articles produced therefrom, and methods for producing same  
In one aspect, the invention relates to recycled polyethylene terephthalate compositions, fibers and articles produced therefrom, and methods for producing same. In a further aspect, the invention...
8716356 Proton-conducting membrane and its use  
The present invention relates to novel polyazoles, a proton-conducting polymer membrane based on these polyazoles and its use as polymer electrolyte membrane (PEM) for producing membrane-electrode...
8653229 Polymerisation of hexafluoropropylene oxide  
Process for the oligomerization of hexafluoropropylene oxide (HFPO) in which the sum of the dimers, trimers, tetramers, pentamers and hexamers represents less than 20% of the weight of the...
8642720 Photoelectric conversion element, method of manufacturing photoelectric conversion element and solar cell  
The present invention provides a photoelectric conversion element exhibiting excellent photoelectric conversion efficiency and excellent stability in photoelectric conversion function; a method of...
8642723 Angular extrusion for polymer consolidation  
Angular extrusion (AE) methods for creating monolithic polymers with high crystallinity, but small crystallite size, are disclosed. The methods involve consolidating granular polymer in an...
8614259 Process of recycling powder coat material and component made thereof  
A process for making a solid component out of recycled powder coat is provided. The process can include providing a powder coat material and providing a second material. Thereafter, the powder...
8598309 Catalytic system of nitrate anions for CO2/epoxide copolymerization  
This invention relates to a Salen type ligand including three or more quaternary ammonium salts of nitrate anions, to a trivalent metal complex compound prepared from this ligand and a method of...
8580917 Method of purifying block copolymers  
The invention relates to block polymers, for example, arborescent copolymer compounds, and to methods of making and purifying such compounds. In one embodiment, the invention relates to...
8569444 Polyalkylene glycol derivative and process for producing same  
A process for producing a polyalkylene glycol derivative having such high molecular weight and purity that the derivative can be used in pharmaceutical applications, which produces a polyalkylene...
8557950 High intrinsic viscosity melt phase polyester polymers with acceptable acetaldehyde generation rates  
A method for the production of solid polyester polymer particles comprising: a) polycondensing a molten polyester polymer composition in the presence of a polycondensation catalyst composition...
8557881 Wood composite material and method for making same  
The invention relates to a wood composite material and to a method for making it. In accordance with the invention, the wood composite material is formed of adhesive laminate waste comprising...
8557882 Method and device for the decontamination of plastic flakes  
A method for preparing contaminated plastics ground into flakes, such as RPET or such polymers, having at least decontamination and SSP treatment steps, with at least one reactor, with heating to...
8557949 Process for production of di- and polyamines of the diphenylmethane series  
Process for the production of di- and poly(diamino diphenyl methane) comprising the steps of (a) reacting aniline and formaldehyde in the presence of an acid catalyst to produce a reaction mixture...
8546518 Polyarylene sulfide and method for producing the same  
A method is provided for producing a polyarylene sulfide by reacting a sulfidizing agent with a dihalogenated aromatic compound in an organic polar solvent in the presence of an alkali metal...
8546455 Expanded polystyrene solubilization method  
The invention relates to a method of solubilizing expanded polystyrene (EPS), in which the EPS is brought into contact with at least one initial solvent, enabling the transition of the EPS from an...
8546522 Method for preparing fine spherical polycarbonate powders and method for preparing high molecular weight polycarbonate resin using same  
Provided are a method for preparing fine round powdery polycarbonate and a method for preparing a high molecular weight polycarbonate resin using the same. More specifically, provided are a method...
8530616 Precise control of molecular weight and chain shape control in carbon dioxide/epoxide alternating copolymerization and preparation of low molecular weight poly(alkylene carbonate) thereby  
This invention relates to a method of preparing poly(alkylene carbonate) that has a molecular weight and polymer chain structure precisely controlled by adding a chain transfer agent composed of a...
8530618 Process for recovering a polymer from a solution  
Process for recovering a polymer by injection of steam, and optionally liquid water, into a solution of this polymer comprising a polar aprotic organic solvent (PAOS) that has an azeotrope with...
8524859 Method for elastomer finishing  
In the production of isobutylene-based elastomers the product obtained from the polymerization process is often in the form of a stream. Described herein are an apparatus and a process for removal...
8524789 Processing and use of waste latex materials  
A process for recovering waste latex material from a manufacturing plant, treating the recovered waste latex material, and subsequently utilizing the recovered and treated waste latex material in...
8513378 Production method for water-absorbing resin powder  
The present invention provides a method for producing a water-absorbing resin powder. The method includes a polymerization step, a drying step, a pulverization step, a classification step, and a...
8507643 Composition comprising glycerol, process for obtaining same and use thereof in the manufacture of dichloropropanol  
A composition comprising glycerol and at least one cyclic oligomer of glycerol, a process for obtaining the composition, and its use in the manufacture of dichloropropanol and of derived products...
8501904 Method for producing polyols  
A process for the preparation of a polyol which includes reacting an amino-group-containing starter compound with an alkylene oxide in the presence of a catalyst to form a polyol, wherein the...
8497346 Polymer powder storage and/or transport and/or degassing vessels  
Polymer powder vessel having a silo including a main vertical cylinder and a hopper at the bottom of the cylinder, a polymer powder which occupies the full volume of the hopper and at least a part...
8470897 Devulcanization of rubber and other elastomers  
A process for devulcanizing crosslinked elastomer particles comprising applying an alternating electric field to a composition comprising crosslinked elastomer particles under compression. The...
8470082 Systems using mass flow promoting insert with gas purging and methods thereof  
A system in one embodiment includes a barrier; an inverted cone in the barrier; and a member under the inverted cone and having dimensions that cause solids passing therealong between the member...
8470962 Method of thermoforming copolyesters  
A method of preventing bubble formation during or after thermoforming polyester sheet comprising heating the polyester sheet to about 100-165° F. for at least about 1 hour prior to thermoforming...

Matches 1 - 50 out of 392 1 2 3 4 5 6 7 8 >
加拿大快乐8开奖数据
北京快乐8官网开奖 快乐888 北京快乐8官网开奖 北京快乐8开奖遗漏数据 北京快乐8大小走势 快乐8官方登录 快乐8qq群 北京快乐8下载 快乐8在线下载 广东快乐8开奖历史记录 北京快乐8开奖遗漏数据 加拿大快乐8开奖时间 快乐8网址导 快乐8平台 云网快乐8福利彩票
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