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7605222 |
Copolyetherimides
Copolyetherimides compositions having high glass transition temperatures and outstanding ductility are presented. The copolyetherimides having M w of at least 40,000 comprising isomeric...
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7576172 |
Method of preparing aliphatic polymer having ketone group in main chain thereof and method of preparing composition containing the same
Described are pacifiers comprising polyester compositions comprising polyesters which comprise (a) a dicarboxylic acid component having terephthalic acid residues; optionally, aromatic dicarboxylic...
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7541417 |
Process for the purification of dihydric phenols
A process comprising the steps of dissolving a dihydric phenol in a solvent to form a solution A, contacting the solution A with an adsorbent material selected from the group consisting of metal...
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7531615 |
Thermally stable polycarbonates, thermoplastic compositions thereof, and articles formed therefrom
A polycarbonate such as aliphatic/aromatic polycarbonate comprises repeating structural carbonate units of the formula (H-1):
in which R h is a radical having the formula (H-2):
wherein...
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7528210 |
Method of purification of dihydric phenols
A process comprising the steps of dissolving a dihydric phenol in a solvent to form a solution A; contacting the solution A with a zeolite; filtering the zeolite to form a solution B; adding an...
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7514522 |
Method for producing polycarbonate copolymer
A method for producing a polycarbonate copolymer having structural repeating units represented by formulas (I) and (II):
wherein each of R 1 and R 2 , X, R 3 , R 4 , Y, a to d and n are...
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7511114 |
Colored aromatic polycarbonate resin composition, process for producing the same and colored hollow container
Colored aromatic polycarbonate resin compositions are prepared by dispersing a colorant (b) selected from phthalocyanine-based compounds, anthraquinone-based compounds and ultramarine blue in a...
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7511081 |
Recycled method for a wasted polymer which is mixed polyester polyamide and reclaimed materials thereof
The present invention relates to a recycling method of a mixed waste of polyester and polyamide (hereinafter, referred to as “mixed waste”) in which polyesters including polyethylene...
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7510768 |
Thermoplastic articles comprising cyclobutanediol having a decorative material embedded therein
This invention relates to thermoplastic article having one or more decorative materials embedded therein which is obtained by applying heat and pressure to one or more laminates wherein at least...
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7425603 |
Polymers, polymer compositions, and method of preparation
A polymer comprising structural units derived from a polycyclic dihydroxy compound of Formula (I)
wherein R 1 , R 2 and R 3 are independently at each occurrence selected from the group...
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RE40508 |
Thermally stable polymers, method of preparation, and articles made therefrom
Thermally stable polymers comprising resorcinol arylate chain members are prepared using an interfacial method comprising the steps of: (a) combining at least one resorcinol moiety and at least one...
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7408018 |
Elastomeric functional biodegradable copolyester amides and copolyester urethanes
The invention provides elastomeric copolyester amides, elastomeric copolyester urethanes, and methods for making the same. The polymers are based on α-amino acids and possess physical, chemical...
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7402650 |
Process for preparing polyarylate having high thermo-resistance and high transparency
A process for preparing polyarylate wherein a bivalent phenol compound having the structure of Formula 1 and an aromatic dicarboxylic acid halogen compound react to prepare a polyarylate, and...
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7399799 |
Flame-retardant polyester polymer dyeable with cationic dye, method of producing the same, and copolyester fiber using the same
Disclosed is a flame-retardant polyester polymer dyeable with a cationic dye, a method of producing the same, a copolyester fiber using the same, and fiber products using the copolyester fiber. In...
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7375178 |
High refractive index thermoplastic polyphosphonates
High refractive index, melt processable polyphosphonates and methods for preparing the same are provided. These polymers are particularly useful for optical and ophthalmic parts, such as lenses. A...
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7351786 |
Polyhydroxyalkanoate containing unit having cyclohexyl structure at side chain, production process therefor, and binder resin containing polyhydroxyalkanoate
Disclosed are a polyhydroxyalkanoate, containing in a polymer molecule thereof a monomer unit represented by the following general formula (1):
(wherein R1 represents a substituent to a...
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7342050 |
Method for preparing a lactic acid ester composition and use thereof as solvent
The invention concerns a method for preparing a lactic acid ester composition based on a lactic acid composition involving a step of transforming the composition into a lactic acid oligomeric...
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7341675 |
Liquid crystalline polymer composition
Liquid crystalline polymers containing specified ratios of repeat units derived from hydroquinone, 2,6-naphthalenedicarboxylic acid, 4-hydroxybenzoic acid and optionally terephthalic acid have...
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7317066 |
Liquid crystal polymers
Liquid crystal polyester derived from phenylene-naphthalene monomers and one or more comonomers display an improved balance of properties, including low melt viscosity, fast cycle time in molding,...
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7317065 |
Method for producing highly functional, hyper branched polyester by means of enzymatic esterification
The present invention provides a highly functional hyperbranched polyester which may be obtained by a process which comprises reacting a reaction solution containing solvent and reactants in the...
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7304121 |
Liquid-crystalline polyester resin and method for producing it
The present invention provides a liquid-crystalline polyester obtainable by a method comprising the steps of: (1) preparing a prepolymer consisting of the repeating units represented by formulae...
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7291435 |
Toner binder for electrophotography and toner for electrophotography
The present invention provides a toner binder for electrophotography which comprises a polyester resin constituted of an alcohol component containing a polyoxyalkylene ether (A) of a bisphenol and...
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7279594 |
Thermoplastic composition, articles thereof, and method of making the articles
A thermoplastic composition comprises greater than or equal to about 60 wt. % polycarbonate; and about 10 wt. % to about 40 wt. % of a polyimide; wherein weight percents are based on a total weight...
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7271235 |
Branched aromatic polycarbonate and its production method
It is to provide a branched aromatic polycarbonate excellent in hue and excellent in melt properties such as melt strength. A branched aromatic polycarbonate obtained by transesterification and...
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7271234 |
Polyarylates for drug delivery and tissue engineering
Biocompatible polyarylates of tyrosine-derived diphenol compounds and poly(alkylene oxide) dicarboxylic acids, articles formed therefrom and therapeutic uses are disclosed.
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7256250 |
Biodegradable coating
The object of the present invention is a biodegradable polymer network and methods to make it. The polymer network consists of a cross-linked polyester resin, which is composed of hydroxy acid...
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7253253 |
Method of removing contaminants from plastic resins
A method for removing contaminants from synthetic resin material containers using a first organic solvent system and a second carbon dioxide system. The organic solvent is utilized for removing the...
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7244807 |
Aromatic polyester film and production process thereof
An aromatic polyester film comprising a polymer having a repeating unit such as a unit derived from 4-hydroxy-carboxyphenyl is provided. The film is excellent in heat resistance and solvent...
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7244803 |
Poly-o-hydroxyamide, polybenzoxazole from the poly-o-hydroxyamide, electronic component including a polybenzoxazole, and processes for producing the same
A dielectric for aluminum and copper metalizations is stable at high temperatures. Surprisingly, in spite of the elimination of water during the cyclization, the polymeric dielectrics are very...
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7238769 |
Method for joining liquid-crystalline polyester resin composition parts and jointed article made of liquid-crystalline polyester resin composition
The present invention provides a method for joining liquid-crystalline polyester resin composition parts, characterized in that the melting point of the liquid crystalline polyester resin measured...
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7214432 |
Coating compositions, their preparation, and coated articles made therefrom
A coating composition comprising components A, B and optionally C, wherein component A comprises at least one hydroxy-terminated polyarylate. Component B is an organic species which can react with...
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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....
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7198830 |
Polycarbonate resin composition and polarizing sheet used the same
A polycarbonate resin composition obtained by blending a polycarbonate resin (A) obtained by forming a carbonate bond from 95 to 5 mol % of a dihydroxy compound having a fluorene structure...
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7193030 |
Acid anhydride and polyimide using the same
An acid anhydride of the formula (4), and a polyimide using the acid anhydride,
wherein anhydrides are substituted at sites 3 or sites 4, which acid anhydride is obtained from, as a raw...
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7183001 |
Transparent thermoplastic composition comprising hollow glass beads
Thermoplastic composition comprising a (meth)acrylic (co)polymer and particles of hollow glass spheres—or a mixture of particles of hollow glass spheres and particles of a mineral and/or organic...
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7179401 |
Thermotropic liquid-crystalline polymer
A thermotropic liquid crystalline polymer, which is obtainable by copolymerizing a trifunctional hydroxynaphthalene carboxylic acid represented by the general formula (I) and/or reactive derivative...
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7169878 |
Diamines, polyimide precursors and polyimides produced by using the diamines, and liquid crystal aligning agents
A diamine compound represented by the formula (1):
wherein R 1 is a trivalent organic group, each of X 1 and X 2 is a bivalent organic group, X 3 is an alkyl or fluoroalkyl group having...
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7169859 |
Weatherable, thermostable polymers having improved flow composition
A copolymer composition comprises an arylate polyester unit, an aromatic carbonate unit, and a soft-block moiety, wherein individual occurrences of the soft block moiety are linked by a spacer unit...
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7166690 |
Recycled method for a wasted polyester and reclaimed materials thereof
The present invention relates to a method for the recycling waste polyester resins and the reclaimed materials therefrom. The method for recycling waste polyester resins according to one embodiment...
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7148314 |
Process for preparation of functionalized polyimides
A method for preparation of a sulfonic and or sulfonic acid salt containing polyimide resins comprising melt reaction of a polyimide resin with an organic compound, wherein the organic compound...
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7148311 |
Liquid crystal polymers
Liquid crystal polyester derived from phenylene-naphthalene monomers and one or more comonomers display an improved balance of properties, including low melt viscosity, fast cycle time in molding,...
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7148296 |
Capped poly(arylene ether) composition and process
A thermoset composition exhibiting reduced water absorption in the cured state includes an olefinically unsaturated monomer and a capped poly(arylene ether) prepared by the reaction of an uncapped...
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7147800 |
Selective ether cleavage synthesis of liquid crystals
A method for making platform molecules comprising: reacting 4-alkoxy benzoyl chloride with R 2 -hydroquinone under first conditions effective to produce bis 1,4[4-alkoxy-benzoyloxy]-R 2 -phenylene...
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7132497 |
Aromatic dihydroxy compound useful for the preparation of (CO)polycarbonates
An aromatic dihydroxy compound conforming to formula 1
is disclosed. Also disclosed are (co)polycarbonates derived from the compound. The novel (co)polycarbonates are characterized by their...
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7129318 |
RTM and RI processable polyimide resins
Polyimide resins that are suitable for processing by resin transfer molding (RTM) and resin infusion (RI) methods at reduced processing temperatures are provided. The inventive RTM and RI...
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7129316 |
Process for the manufacture of polyester via hydrogenation treatment of recycled diol
An improved process for recycling unspent diol removed from a polyester manufacturing process wherein the diol is captured, hydrogenated, and recycled so that the final polyester product has...
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7122244 |
Polyamide-imide resin solution and the use thereof for producing wire enamels
The present invention relates to a polyamideimide resin solution preparable by reacting (a) aromatic polycarboxylic acids and/or their anhydrides with (b) aromatic imide- and amide-forming...
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7108807 |
Methods for producing a dielectric, dielectric having self-generating pores, monomer for porous dielectrics, process for preparing poly-o-hydroxyamides, process for preparing polybenzoxazoles, and processes for producing an electronic component
Poly-o-hydroxyamides include binaphthyl substituents as repeating units. The poly-o-hydroxyamides can be cyclized to give the polybenzoxazole by heating. Pore formation occurs, so that a dielectric...
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7105260 |
Binder resin for toner and toner
A binder resin for a toner comprises a polyester component having a specific structure which is not soluble in tetrahydrofuran, and a polyester component having a specific branched structure which...
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7105106 |
Liquid crystalline polymers, processes for their manufacture, and articles thereof
Thermotropic liquid crystalline polymers are produced by the reaction of a polyester made from an aromatic dicarboxylic acid and a diol, one or more hydroxycarboxylic acids, a stoichiometric excess...
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