|
Match
|
Document |
Document Title |
|
|
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...
|
|
|
7550555 |
Sintering ultrahigh molecular weight polyethylene
Ultrahigh molecular weight polyethylene compositions of highly beneficial sintering characteristics are disclosed and methods for making and processing same. Additionally, products comprising these...
|
|
|
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...
|
|
|
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...
|
|
|
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...
|
|
|
7342086 |
Aliphatic polyester polyether copolymer, process for producing the same and aliphatic polyester composition using the copolymer
An aliphatic polyester polyether copolymer is provided having an aliphatic polyester moiety comprising 35 to 50 molar % of an aliphatic diol unit, 35 to 50 molar % of an aliphatic dicarboxylic acid...
|
|
|
7279545 |
Production method of biodegradable plastic and apparatus for use in production thereof
The present invention provides a production method of biodegradable plastic in which polylactic acid is directly synthesized from lactic acid without employing the conventional route of polylactic...
|
|
|
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...
|
|
|
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,...
|
|
|
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...
|
|
|
7199212 |
Polymerization catalyst for polyesters, polyesters produced with the same and process for producing polyesters
A novel polymerization catalyst for polyesters, which does not contain any germanium or antimony compound as the main component; polyesters produced with the catalyst; and a process for producing...
|
|
|
7196160 |
Catalysts and methods for polymerizing macrocyclic oligomers
Cyclic oligomers containing ester linkages are polymerized in the presence of a catalyst having at least one oxygen atom bonded to two metal atoms. At least one of the metal atoms is a tin atom,...
|
|
|
7052764 |
Shaped articles comprising poly[(trimethylene-co-dianhydrosugar ester) dicarboxylate] or poly(trimethylene-co-dianhydro-dicarboxylate with improved stability
A shaped article comprising poly[(trimethylene-co-dianhydrosugar ester) dicarboxylate] or poly(trimethylene-co-dianhydro-dicarboxylate having improved stability in the form of less change of Tg and...
|
|
|
7049041 |
Resin for toner binder and toner composition
The present invention provides a toner binder for developing electrostatic charge images,
which binder comprises a polycondensate polyester resin, said polyester resin being a product formed...
|
|
|
7048995 |
Polyester resin, molded product made thereof and process for production of polyester resin
A polyester resin produced by polycondensing a dicarboxylic acid component containing an aromatic dicarboxylic acid or its ester-forming derivative as the main component and a diol component...
|
|
|
7049390 |
Poly(1,3-propylene-co-1,4:3,6-dianhydro-D-sorbitol terephthalate) and manufacturing process
A melt polymerization process for the preparation of poly(1,3-propylene-co-isosorbide) terephthalate (3GIT), new 3GITs and products made from the 3GITs. The process comprises (a) providing a...
|
|
|
7026035 |
Laminated film for optical use
There is provided a laminated film for optical use comprising a polyester film which has a lubricity layer containing globular particles in at least one side thereof, wherein the laminated film has...
|
|
|
7022806 |
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...
|
|
|
6905774 |
Biaxially-oriented polyester film for fabrication and method of producing the same
Biaxially-drawn polyester film for fabrication which is characterized in that it is a film comprising polyester in which ethylene terephthalate units and/or ethylene naphthalate units are the chief...
|
|
|
6861498 |
Glyceryl citrate polyesters in personal care
The present invention relates to specific glyceryl alkoxylated citrate esters and their use in lipsticks. These polymers not only do not have a mal taste, but also have a very pleasant taste. This...
|
|
|
6858701 |
Wholly aromatic polyester carbonate and process therefor
A wholly aromatic polyester carbonate having a good color and excellent heat resistant stability. This polymer had an extremely low alkali metal content of 10 ppm or less. This polymer is...
|
|
|
6852789 |
Glycols starting materials containing dispersed superfine ceramic powder coagulates capable of forming polyester molded bodies having high mechanical strength and transparency
Glycol starting materials for manufacturing a polyester molded body containing 1 to 20% by weight of dispersed superfine ceramic powder aggregates relative to the total weight of the glycol for...
|
|
|
6783827 |
Method or decreasing the cyclic oligomer content in polyester product
The present invention relates to a method for decreasing the cyclic oligomer content level in the manufacturing process of polyethylene terephthalate (PET) and in the PET products produced from...
|
|
|
6737481 |
Ester-modified dicarboxylate polymers
A polymer comprising poly(alkylene-co-dianhydrosugar ester) dicarboxylate and its preparation by reacting an alkylene diol, terephthalic acid, and a moiety of formula 1 X-I a -(A-I) n -A b -X ...
|
|
|
6733873 |
Polyester film as support for dry film resist
A polyester film for dry film resists, which satisfies requirements for transparency, particularly transmittance of radiation having a wavelength around 365 nm, slipperiness, winding properties,...
|
|
|
6706396 |
Processes for producing very low IV polyester resin
The present invention provides processes for producing certain very low inherent viscosity polyesters. Also provided are the low inherent viscosity polyesters in discrete particulate form, and...
|
|
|
6664363 |
Low viscosity polyester polyols and methods for preparing same
The present invention relates to low viscosity aromatic polyester polyols having an average functionality of two and methods for preparing such polyols. In particular, the invention relates to low...
|
|
|
6663961 |
Process for preparation of polyester-based polymers
This invention is related to a process for preparing polyester polymers using a composite catalyst comprises the steps of 1) esterifying naphthalene dicarboxylic acid or a dicarboxylic acids...
|
|
|
6657044 |
Process for making polytrimethylene terephthalate
An improved process for the polymerization of polytrimethylene terephthalate by esterification of terephthalic acid or dimethylterephthalate with 1,3-propanediol (PDO), precondensation of the...
|
|
|
6657036 |
Polycondensation resins and polyaddition resins produced by heterogeneous catalysis
The invention relates to polycondensation resins which are prepared by polycondensation of compounds having a low molecular weight and separation of small molecules in the presence of at least one...
|
|
|
6649731 |
Catalysts for polyester production, process for producing polyester, and polyester
By the present invention, there are provided a catalyst for polyester preparation, which comprises a solid titanium compound containing titanium, oxygen, carbon and hydrogen and having a Ti—O...
|
|
|
6610796 |
Flame retardant polybutyleneterephthalate resin
Disclosed is a flame retardant polybutyleneterephthalate resin prepared be copolymerizing a phosphorus-based flame retardant represented by the following formula I and a butyleneterephthalate unit:...
|
|
|
6596839 |
Wholly aromatic polyester and production process therefor
A process for producing a wholly aromatic polyester which is excellent in heat resistance, mechanical properties and yet color and has a high degree of polymerization by melt polymerizing a...
|
|
|
6582818 |
Polyesters having a controlled melting point and fibers formed therefrom
The invention relates to fibers, particularly binder fibers, made from polyesters and the polyesters themselves. The polyesters are the product of a reaction between a glycol component and a...
|
|
|
6559272 |
Method for preparing copolyester resins using titanium dioxide/silicon dioxide coprecipitate catalyst in the form of suspension in glycol
Disclosed is a method for preparing polyester resins copolymerized with glycol for modification such as 1,4-cyclohexanedimethanol, in which the content of said glycol ingredient for modification...
|
|
|
6528579 |
Zero-heel polyester process
The invention relates to a process for the preparation of polyesters of a glycol and a dicarboxylic acid which comprises the following steps: a) introducing a feedstock comprising one or more...
|
|
|
6500915 |
Polyester resin and its production process
The present invention relates to a polyester resin produced by polymerizing a dicarboxylic acid component comprising mainly an aromatic dicarboxylic acid or its ester forming derivative, and a diol...
|
|
|
6489434 |
Manufacturing method of copolyester for low acetaldehyde content of PET bottles
The present invention provides a manufacturing method of copolyester for low acetaldehyde content of PET bottles. The polyethylene terephthalate (PET) polymer is added with an appropriate modifier...
|
|
|
6489406 |
Unsaturated polyester resin and the use of it
The invention relates unsaturated polyester resins for the manufacture of subzero flexible, weather-resistant products. The liquid unsaturated polyester resin comprises a linear unsaturated...
|
|
|
6472500 |
Crystalline polyester resins and processes for their preparation
An improved process for the preparation of high molecular weight, linear polyester resins comprises reacting an aromatic dicarboxylic acid with an excess of an alkane diol under conditions...
|
|
|
6426398 |
Poly (trimethylene terephthalate) polymer composition
A poly(trimethylene terephthalate) polymer composition (a) comprising repeat units derived from terephthalic acid and 1,3- propanediol, (b) having a b value of less than about 10, and (c) having an...
|
|
|
6417320 |
Catalyst and method for its production and use
The production of linear polyester by the interchange of ester radicals or esterification and polycondensation of multivalent alcohols with multivalent carboxylic acids takes place by means of...
|
|
|
6392005 |
Manufacturing method for decreasing the cyclic oligomer content in polyester
The present invention relates to a manufacturing method for decreasing the cyclic oligomer content in polyester which effectively restrains the production of the cyclic oligomer in ester chips and...
|
|
|
6350850 |
Process for producing polyester
The present invention is a process for producing a polyester from a dicarboxylic acid and a diol, which comprises polycondensing the dicarboxylic acid and the diol under the presence of a...
|
|
|
6350851 |
Method of polymerizing deionized bis-β-hydroxyethyl terephthalate
A method of producing a polyester from high-purity bis-β-hydroxyethyl terephthalate as a raw material containing cations and anions in trace amounts. Polyester production raw materials including...
|
|
|
6316584 |
Method for producing polyesters and copolyesters
For the production of polyesters and copolyesters, coprecipitates are used individually or in a mixture as polycondensation catalysts, the coprecipitates being prepared by simultaneous hydrolytic...
|
|
|
6281325 |
Preparation of poly(trimethylene terephthalate)
In one embodiment, the invention is a process for the preparation of poly(trimethylene terephthalate) comprising (a) contacting terephthalic acid with 1,3-propanediol in the presence of an organic...
|
|
|
6268465 |
Hydrolysis-resistant aliphatic polyester amides, their production and use
An aliphatic polyester amide which is hydrolysis-resistant includes a ternary polycondensation product of monomeric constituents composed of a monomeric constituent A which is at least one diol...
|
|
|
6255442 |
Esterification process
A process that can be used in an esterification and polycondensation processes to produce a polyester such as, for example, poly(trimethylene terephthalate) is disclosed. The process comprises...
|
|
|
6242558 |
Modified polytrimethylene terephthalate
A 1,3-propanediol-based aromatic polyester such as polytrimethylene terephthalate is modified by reaction with a hindered phenolic acid or ester to provide an endcapped polyester which has improved...
|