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| Number | Title | Issue Date |
| 8143367 | Method for the esterification of terephtalic acid with butanediol, method for the manufacture of polybutylene terephtalate and a device therefor The present invention relates to an improved method for the esterification of terephthalic acid with 1,4-butanediol, an improved method for the manufacture of polybutylene terephthalate as well as reactors and devices that are suited for the application in this meth... | 03/27/2012 |
| 8039577 | Polyester polymer and copolymer compositions containing titanium nitride particles Polyester compositions are disclosed that include polyester polymers or copolymers having incorporated therein titanium nitride particles that provide one or more of the following advantages: improving the reheat properties of the compositions, improving the color o... | 10/18/2011 |
| 7923526 | Sulfopolyesters having improved clarity in water-dispersible formulations and products made therefrom A sulfopolyester comprising repeat residue units from the reaction product dimethyl-5-sodiosulfoisophthalate, isophthalic acid, 1,4-cyclohexanedimethanol and diethylene glycol, has at least one property selected from: a) an acidity of greater than 0.030 measured as ... | 04/12/2011 |
| 7834128 | Polymerization catalyst for polyester, method for producing it and process for producing polyester using it A process for producing a polyester using a catalyst, which catalyst enables producing a polyester excellent in color tone and transparency at a high reaction velocity; the catalyst; and a method for producing the catalyst, which catalyst comprises: ... | 11/16/2010 |
| 7820781 | Polymeric materials and additives therefor A polymer additive for improving the reheat characteristics of a polymer or polymeric composition comprises an inorganic material which is such that a 2.5 mm thick polyethylene terephthalate plaque incorporating the inorganic material has, when tested, an absorption... | 10/26/2010 |
| 7709595 | Non-precipitating alkali/alkaline earth metal and aluminum solutions made with polyhydroxyl ether solvents A stable catalyst solution suitable for catalyzing the polycondensation of reactants to make polyester polymers comprising: (i) M, wherein M is represented by an alkaline earth metal or alkali metal and (ii) alumin... | 05/04/2010 |
| 7709594 | Polyester resin compositions, catalyst for polyester production, polyester film, and magnetic recording medium A polyester composition produced without using an antimony compound as a polycondensation catalyst and including (I) composition containing, on a weight basis, 30 ppm or less of antimony, 0.5 to 50 ppm of titanium, and 0.1 to 100 ppm of phosphorus, in w... | 05/04/2010 |
| 7671169 | Polycarbonate-polyester block copolymer compositions, methods, and articles A polycarbonate-polyester block copolymer includes a polycarbonate block and a polyester block, each having specific structures. The block copolymer can be prepared, at least in part, from renewable feedstocks. In some forms, the block copolymer includes biodegradab... | 03/02/2010 |
| 7544762 | Catalyst for preparation of polyester and process for preparing polyester using the catalyst A polyester having a good color tone (a high L value and a low b value) and a low acetaldehyde content is obtained by using a catalyst containing a reaction product of (A) a titanium compound (1) represented by the general formula (I) and/or a titanium compound (2) ... | 06/09/2009 |
| 7531617 | Continuous process for producing poly(trimethylene terephthalate) This invention relates to a continuous process for production of poly(trimethylene terephthalate), wherein gaseous 1,3-propanediol by product resulting from the process is condensed in a condenser, and a portion of the condensed by-product is recycled back into the ... | 05/12/2009 |
| 7524921 | Continuous manufacture of poly(trimethylene terephthalate) This invention relates to a continuous process for production of poly(trimethylene terephthalate), wherein gaseous 1,3-propanediol by-product resulting from the process is condensed in a condenser, the total amount of any trimethylene terephthalate cyclic dimer and ... | 04/28/2009 |
| 7462682 | Orthochromatic polyester resin composition and molding product thereof A tinted polyester resin composition having good color and useful for many uses (fibers, films and other formed articles) contains an aromatic polyester polymer and a tinting agent; the tinting agent is contained in a content of 0.1 to 10 ppm by mass in the composit... | 12/09/2008 |
| RE40571 | Catalyst for polyester production, process for producing polyester using the catalyst, polyester obtained by the process, and uses of the polyester The present invention provides a catalyst for polyester production capable of producing a polyester with high catalytic activity, a process for producing a polyester using the catalyst and a polyester produced thereby. The catalyst comprises a solid titanium compoun... | 11/11/2008 |
| 7439317 | Amorphous polyester chip and method for production thereof, and method for storage of amorphous polyester chip An amorphous polyester chip having superior processing ability is characterized by a moisture content of not more than 300 ppm and a fine particle content of not more than 500 ppm. A preferred embodiment is a copolymerized polyester chip comprising a main repeating ... | 10/21/2008 |
| 7368523 | Polyester polymer and copolymer compositions containing titanium nitride particles Polyester compositions are disclosed that include polyester polymers or copolymers having incorporated therein titanium nitride particles that provide one or more of the following advantages: improving the reheat properties of the compositions, improving the color o... | 05/06/2008 |
| 7348128 | Photosensitive resin based on saponified polyvinyl acetate photosensitive resin composition, method of forming aqueous gel from the same, and compound A photosensitive resin which exhibits excellent storage stability, affinity, miscibility, or solubility with respect to a variety of compounds, and high sensitivity can be solidified even under hydrous conditions as well as exhibiting high cure-related sensitivity a... | 03/25/2008 |
| 7335410 | Composition and process for manufacturing polyester The invention relates to a composition suitable for catalysis in a process for the manufacture of polyester containing as Component I a carrier substance on which catalytically effective metal compounds are adsorbed and as Component II a phosphonic acid compound. | 02/26/2008 |
| 7335719 | Polyester based on poly(trimethylene terephthalate) A polyester based on poly(trimethylene terephthalate) consisting essentially of trimethylene terephthalate repeating units, comprising at least one kind of compound selected from the group consisting of alkali metal compounds, alkaline earth metal compounds and mang... | 02/26/2008 |
| 7332564 | Polymerization catalyst for polyester, method for producing it and process for producing polyester using it Polymerization catalysts for polyesters include: (1) metal elements selected from metal elements of Group 4A of the Periodic Table; and (2) metal elements selected from metal elements of Group 2A of the Periodic Table, aluminum, manganese, iron, cobalt, zinc, galliu... | 02/19/2008 |
| 7332562 | Biodegradable linear random copolyester and process for preparing it and use of the same The present invention relates to a biodegradable copolyester of high molecular weight and narrow molecular weight distribution. The copolyester has a Mw of 100,000-600,000 g/mol, and a molecular weight distribution of 1.2-3. The process for synthesizing t... | 02/19/2008 |
| 7329703 | Polymerized macrocyclic oligomer nanocomposite compositions The invention relates to polymers derived from macrocyclic oligomers containing organo clay fillers comprising a) a polymer derived from a macrocyclic oligomer; b) clay platelets; and c) the residue of one or more onium compounds having at least one ligand with a C | 02/12/2008 |
| 7323537 | Catalyst for production of polyester, process for producing polyester using it and titanium-containing polyethylene terephthalate To provide a catalyst for production of a polyester, a process for producing a polyester using the catalyst and a titanium-containing polyethylene terephthalate having excellent characteristics. A catalyst for production of a polyester, characterized by compr... | 01/29/2008 |
| 7323345 | Liquid microvolume handling system The present invention relates to a microfluidic device comprising a microchannel (2, 4) providing for solvent contact between an open microarea (MA) carrying a microvolume (1) of a solvent and a reservoir (3) for the solvent, said reservoir (... | 01/29/2008 |
| 7309756 | Methods for converting linear polyesters to macrocyclic oligoester compositions and macrocyclic oligoesters Macrocyclic oligoesters and compositions comprising macrocyclic oligoesters are prepared from intermediate molecular weight polyesters. In one embodiment, a diol is contacted with a dicarboxylic acid or a dicarboxylate in the presence of a catalyst to produce a comp... | 12/18/2007 |
| 7300998 | Polyester resin and catalyst for polyester production, process for producing polyester resin with the catalyst, polyester resin obtained with the catalyst, and hollow molded container comprising the polyester resins The object of the present invention is to provide a high quality polyester resin having high productivity, stability and safety, a catalyst for polyester production with high catalytic activity, a method for producing the polyester resin with the catalyst, a polyest... | 11/27/2007 |
| 7285843 | Electromagnetic wave shielding sheet There is provided an electromagnetic wave shielding sheet which can effectively prevent an adhesive layer from being colored at the time of etching. The electromagnetic wave shielding sheet comprises a laminate of at least a transparent substrate film, an adhesive l... | 10/23/2007 |
| 7282533 | Plastic, particularly a sterically hindered esterified amine containing polyurethane Plastics comprise sterically hindered, esterified amine (I) which contains less than 100 ppm, based on the weight of (I), of titanium. ... | 10/16/2007 |
| 7282555 | Method for incorporating nitrogen containing methine light absorbers in pet and compositions thereof The present invention is a method for efficiently incorporating a nitrogen containing methine light absorber into a polyester resin. The method includes forming a reaction mixture comprising combining a diol component, a diacid component selected from the group cons... | 10/16/2007 |
| 7259227 | Method for continuous production of high-molecular weight polyesters and device for implementation of the method The invention relates to a method for producing high-molecular weight polyesters, such as e.g. polyethylene terephthalate (PET), polybutylene terephthalate (PBT), polynaphthalene terephthalate (PEN), polytrimethylene terephthalate (PTT) and/or polyesters of other di... | 08/21/2007 |
| 7253250 | Simplified method of producing biodegradable aliphatic polyesters A method of synthesizing biodegradable aliphatic polyesters from one or more aliphatic dicarboxylic acids or diesters of the said acids and one or more linear or branched aliphatic glycols, comprising a first esterification or transesterification step and a second d... | 08/07/2007 |
| 7244806 | Method and device for the continuous production of polyesters In the continuous production of polyesters, the esterification/transesterification of dicarboxylic acids or esters of the dicarboxylic acids with diols is performed in at least one reaction stage, the prepolycondensation of the esterification/transesterification pro... | 07/17/2007 |
| 7241855 | Method for the manufacture of polyesters A method is described for the manufacture of polyesters of aromatic dicarboxylic acids with aliphatic and/or cycloaliphatic dials, in which an aromatic dicarboxylic acid in the presence of a monocarboxylic acid or a mixture of a monocarboxylic acid present in a satu... | 07/10/2007 |
| 7226888 | Composition comprising titanium and aluminium and polyester production A composition and a process for using the composition are disclosed. The composition comprises, or is produced from, a titanium chelate and an aluminum hydroxyhalide, in a solvent. A process comprises contacting a carbonyl compound, in the presence of a composition,... | 06/05/2007 |
| 7223471 | Polytrimethylene terephthalate resins with improved properties A composition comprising Polytrimethylene terephthalate (PTT) with a reduced emission of acrolein is obtained by contacting Polytrimethylene terephthalate (PTT) resin with an effective amount of a melt stable, organic stabilizing compound. Such PTT resin has an acro... | 05/29/2007 |
| 7223830 | Method and device for the production of polytrimethylene terephthalate In a process for producing polytrimethylene terephthalate by esterification of terephthalic acid with 1,3-propanediol and polycondensation, the vapors formed are rectified , the liquid phase is recirculated to the process, and the lower-boiling components are conden... | 05/29/2007 |
| 7211634 | Process for the preparation of polyesters containing 1,4-cyclohexanedimethanol Disclosed is a process for the preparation of high molecular weight polyesters by reacting one or more dicarboxylic acids directly with 1,4-cyclohexanedimethanol and, optionally, one or more diols. The process uses an overall diol to dicarboxylic acid molar ratio of... | 05/01/2007 |
| 7205357 | Polyester resin composition for toner A polyester resin composition for a toner comprising a titanium compound in an amount of from 0.005 to 4% by weight, and an inorganic phosphorus compound in an amount of from 0.001 to 5% by weight; a toner comprising the polyester resin composition as defined above;... | 04/17/2007 |
| 7204962 | Production apparatus for polybutylene terephthalate Polybutylene terephthalate having good heat stability and excellent hydrolysis resistance is continuously produced in a series of a first reactor for reacting an aromatic dicarboxylic acid comprising terephthalic acid as a main ingredient or a derivative thereof wit... | 04/17/2007 |
| 7196159 | Process for producing polytrimethylene terephthalate A process for the production of polytrimethylene terephthalate (PTT), wherein the process comprises: (i) one or more esterification steps, wherein terephthalic acid (TPA) or an alkyl diester of terephthalic acid is reacted with 1,3-propanediol (PDO); an... | 03/27/2007 |
| 7196158 | Knitted/woven fabric of polyester fiber A knitted/woven fabric of polyester fibers is produced from a polyester polymer obtained by condensation-polymerizing an aromatic dicarboxylate in the presence of a catalyst which comprises a mixture of a titanium compound ingredient (A) comprising a titanium alkoxi... | 03/27/2007 |
