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8148489 |
Thermoplastic resins containing PBT units, having reduced organic carbon emissions
A method for reducing organic carbon emissions from PBT-block-containing resins is disclosed. The method involves adding a titanium-catalyst deactivating compound to the resin after polymerisation.
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8143356 |
Polyester resin composition, process for producing the same and molding thereof
A method for producing a polyester resin composition C), which comprises melt-kneading a polyester resin (A) which satisfies the following formulae (1), (2) and (3) and a polyester resin (B) which...
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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...
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8138116 |
Titanium oxide composition and the application thereof on poly-esterification
The application discloses a Titanium oxide composition and the application thereof. The mentioned Titanium oxide composition comprises Titanium co-precipitate(s), organic acid, diol, and water....
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8039416 |
Catalyst for polyester polycondensation and method for producing polyester resin using the same
The invention provides: a polycondensation catalyst for polyester production, which contains titanium atoms, alkaline earth metal atoms and phosphorus atoms, has high reactivity and excellent...
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8039417 |
Catalyst for polyester polycondensation and method for producing polyester resin using the same
The invention relates to a liquid catalyst solution containing a polycondensation catalyst for polyester production, which contains titanium atoms, alkaline earth metal atoms and phosphorus atoms,...
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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:...
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8030435 |
Solid state polymerization process for polyester with phosphinic acid compounds
Disclosed is a method for increasing the solid state polymerization (SSP) rates of metal catalyzed polyesters. The method comprises in a first step, reacting a dicarboxylic acid or a C1-C4...
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7956154 |
Polymers incorporating 1,3 and 1,4 cyclohexanedimethanol
A polymer containing a polyester polymer unit having the formula -(I-III-II)-, wherein III is derived form a di-carboxylic acid, wherein I is derived from 1,3 cyclohexanedimethanol, wherein II is...
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7935737 |
Articles derived from compositions containing modified polybutylene terephthalate (PBT) random copolymers derived from polyethylene terephthalate (PET)
Compositions of matter including articles derived from (a) from 5 to 99.99 wt % of a modified polybutylene terephthalate random copolymer that (1) is derived from polyethylene terephthalate and (2)...
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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...
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7915374 |
Copolyesters having improved thermal stability and methods for making them
Processes for producing polyethylene terephthalate copolyesters are disclosed, that include the steps of: esterifying a mixture of at least terephthalic acid, from 20 mole percent to 45 mole...
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7902264 |
Polytrimethylene terephthalate (PTT) derived from polyethylene terephthalate (PET) and containing PET residues
A composition comprising a polytrimethylene terephthalate random copolymer that (1) is derived from polyethylene terephthalate component selected from the group consisting of polyethylene...
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7872092 |
Polyester resin sheet for photovoltaic batteries, laminate formed by using the same, photovoltaic battery backside protection sheet, and module
An objective of the present invention is to provide an inexpensive and excellent polyester resin sheet for photovoltaic batteries which enhances the electrical transduction efficiency of...
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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...
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7833931 |
Solid acid catalyst for production of polyester, process for production of the catalyst, and process for production of polyester using the catalyst
The present invention relates to a solid acid catalyst for the production of polyester which enables the production of a metal-free polyester resin containing no residual catalyst, exhibits...
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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...
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7767781 |
Preparation of low-acid polyalkylene terephthalate and preparation of macrocyclic polyester oligomer therefrom
The invention provides methods and systems for manufacturing low-acid polyalkylene terephthalate, for example, polybutylene terephthalate (PBT). The invention also provides methods and systems for...
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7759270 |
Titanium oxide sol and process for producing polyalkylene terephthalate therewith
An environmentally friendly polymerization catalyst for polyalkylene terephthalate which does not use a heavy metal such as antimony, and a method for producing polyalkylene terephthalate using the...
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7718754 |
Promoter for polycondensation reaction
A promoter for a polycondensation reaction used together with a catalyst in a polycondensation reaction, the promoter for a polycondensation reaction comprising a pyrogallol compound having a...
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7709593 |
Multiple feeds of catalyst metals to a polyester production process
Processes for feeding catalyst systems to a melt phase process for the manufacture of polyester polymers, and more particularly, to split catalyst solution feeds to the melt phase process to...
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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...
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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...
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7687593 |
Fluorinated polymer and polymer composition
Provided are: an addition polymer of fluorosilsesquioxane (a) having one addition polymerizable functional group or an addition copolymer of the fluorosilsesquioxane (a) having one addition...
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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...
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7579428 |
Process for preparation of polyesters without solid state polymerization
Polyesters prepared using germanium catalyst in the finishing stage at temperatures less than 285° C. exhibit low loss of Ge catalyst and excellent low acetaldehyde generating characteristics.
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7557174 |
Carboxy-terminated oligomeric polyester compositions and method for making
The present invention provides carboxy-terminated oligomeric polyester compositions useful in the preparation of “weatherable” polymeric materials, for example weatherable cop...
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7550531 |
Polymerization of macrocyclic polyester oligomers using metal amide and metal alkoxide catalysts
Metal amide and metal alkoxide species have been found to catalyze the ring opening polymerization of macrocyclic polyester oligomers. The catalysts provide rapid polymerization, high monomer...
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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)...
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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,...
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7527809 |
Polyhydroxyalkanoate-containing magnetic structure, and manufacturing method and use thereof
A structure containing polyhydroxyalkanoate and a magnetic substance includes an external phase part containing polyhydroxyalkanoate and an internal phase part contained in the external phase part,...
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7528219 |
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...
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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,...
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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...
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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...
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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...
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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:...
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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...
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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...
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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...
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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...
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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...
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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,...
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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...
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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...
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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;...
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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...
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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...
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7189797 |
Process for producing poly(ethylene-aromatic dicarboxylate ester) resin and resin product
A poly(ethylene aromatic dicarboxylate ester) resin usable for the production of fibers, films and bottle-formed articles, is produced by polycondensing a diester of an aromatic dicarboxylic acid...
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7183029 |
Dry toner, toner kit, and image forming apparatus and process cartridge using the dry toner
A toner for forming a full color image, which includes a colorant and a binder resin including a polyester resin which is prepared by a polycondensation ester reaction in the presence of a...
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