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7612161 |
Method for treating extremely small particles of plastic
A method for treating extremely small particles of plastic comprises providing a quantity of plastic particles having an average mean particle size ranging from about 0.0005 inch to about 0.05 inch...
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7611725 |
Additives and products including oligoesters
The present invention relates to oligoesters and their use or the creation of additives. Oligoester containing additives and/or oligoesters themselves may be used for formulating pharmaceutical...
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7608309 |
Resin composition, film and image display device utilizing the resin composition
A resin composition containing a polymer comprising a repeating unit having a spiro structure and/or a cardo structure. The resin composition has superior heat resistance and is utilized to produce...
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7601795 |
Process for production of a carboxylic acid/diol mixture suitable for use in polyester production
The present invention relates to a process by which a carboxylic acid/diol mixture is obtained from a slurry or cake carboxylic acid product without isolation of a substantially dry carboxylic acid...
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7601765 |
UV-active binding agent
The present invention relates to processes for preparing actinic-radiation-curable and/or dual-cure poly(meth)acrylates by preparing a poly(meth)acrylate containing hydroxy-functional side chains...
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7592413 |
Manufacture of aromatic polyester
Aromatic polyesters are made in a continuous process in an extruder or extruder-like apparatus by reacting at elevated temperatures dicarboxylic acids, aliphatic esters of aromatic diols, and...
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7585931 |
Optically active high-molecular compounds
Disclosed are optically active high-molecular-weight compounds of the following formula
and stationary-phase materials containing the same. The high-molecular-weight compounds exhibit optical...
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7585921 |
Resin for toner binder and toner composition
The present invention provides
a resin for toner binders, which comprises two polyester resins (A) and (B), said resin (A) being a crosslinked modified polyester resin consisting of the...
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7582721 |
Two step preparation of random polyoxadiazole copolymer and articles resulting therefrom
In a preparation of random polyoxadiazole copolymer by reaction of a mixture of oleum, hydrazine sulfate, terephthalic acid, and isophthalic acid, the improvement requires the addition of oleum in...
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7579431 |
Method for treating extremely small particles of polyethylene terephthalate
A method for treating extremely small particles of recycled polyethylene terephthalate comprises providing a quantity of RPET particles having an average mean particle size ranging from about...
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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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7576173 |
Single solvent polymer extraction methods
The present invention provides methods for isolating a PHA. The method comprises combining the PHA, a first solvent and a second solvent to form a combination, the first solvent and the second...
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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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7569320 |
Polyester resin for toner, toner for developing electrostatic charge image and method for forming image
A polyester resin for toner, wherein an acid component of the polyester comprises (1) disproportionated rosin and (2) terephthalic acid and/or isophthalic acid, an alcohol component of the...
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7560526 |
Polyol with high cyclopentane solubility
Methods and compositions for forming polyurethane foam. A method for manufacturing an aromatic polyester polyol comprises heating a glycol, a dicarboxylic acid or ester, functionality enhancing...
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7557176 |
Polyhydroxyalkanoic acid having vinyl, ester, carboxyl or sulfonic acid group and producing method therefor
The invention is to provide a novel polyhydroxyalkanoate having a reactive function group within the molecule and a producing method therefor In a polyhydroxyalkanoate containing a unit having a...
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7557175 |
Poly(carbonate-co-urea) copolymers and melt transesterification method of preparing these copolymers
Disclosed herein is a poly(carbonate-co-urea-co-ester) copolymer comprising incorporated urea compound, dihydroxy compound and diacid compound residues. Also disclosed herein is a...
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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...
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7544746 |
Hyperbranched polymers
A process for preparing a hyperbranched polymer having a weight-average molar mass of at least 30,000, includes coupling a first prepolymer having at least three functional end groups with a second...
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7541422 |
Enzyme-catalyzed process for the preparation of macrocyclic polyester oligomers
A process for the enzyme-catalyzed preparation of cyclic ester oligomers from dicarboxylic acids and/or dicarboxylic acid derivatives and diols, hydroxycarboxylic acids and/or hydroxycarboxylic...
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7541407 |
Process for adding methine UV light absorbers to PET prepared by direct esterification
A method for incorporating a UV light absorbing compound into a polyester prepared using direct esterification of reactants selected from a dicarboxylic acid and a diol. The method comprises...
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7538179 |
Process for producing aliphatic polyester
Ring-opening polymerization of a cyclic ester is performed by using an alcohol and water positively as initiators or/and molecular weight-adjusting agents to control the initial properties and...
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7534854 |
Apparatus and method for oxidation and stabilization of polymeric materials
An apparatus for treating polymeric materials comprises a treatment chamber adapted to maintain a selected atmosphere; a means for supporting the polymeric material within the chamber; and, a...
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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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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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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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7528218 |
Polyester for toner
The present invention relates to a polyester for a toner, obtained by polycondensing an alcohol component and a carboxylic acid component containing an alkylsuccinic acid having 10 or more carbon...
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7528217 |
Polymers and fibers formed therefrom
Sulfonated polyoxadiazole polymers containing groups selected from:
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7528216 |
Two step preparation of random polyoxadiazole copolymer and articles resulting therefrom
In a preparation of random polyoxadiazole copolymer by reaction of a mixture of oleum, hydrazine sulfate, terephthalic acid, and isophthalic acid, the improvement requires the addition of oleum in...
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7528211 |
Method for controlled polymerization of o-carboxy anhydrides derived from α-hydroxy acids
The invention concerns a method for preparing poly(-hydroxy acids), the polymerization reaction being performed in controlled manner in the presence of a catalytic system including a base, said...
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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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7524920 |
Biaxially oriented copolyester film and laminates thereof
Disclosed is a biaxially-oriented polyester film produced from a polyester comprising: (1) diacid residues comprising between about 95 and about 100 mole percent of terephthalic acid residues; (2)...
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7521523 |
Oxygen-scavenging polyester compositions useful in packaging
Oxygen-scavenging polyester compositions are disclosed that comprise one or more polyesters having incorporated therein residues of 3-hexenedioic acid and terephthalic acid. The compositions may...
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7521522 |
Method and device to reduce the acetaldehyde content of polyester granulate
The invention relates to a method for producing a granulate with a low acetaldehyde content and improved processing properties from a high-viscosity polyester melt, wherein the polyester melt...
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7517635 |
Polyester compound and resist material using the same
There is provided a novel polyester compound having in its main polymer chain an aliphatic cyclic structure with carboxylic acids or carboxylic acid ester groups as represented by the chemical...
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7514525 |
Recovery and purification of polyhydroxyalkanoates
The present invention relates to a method to recover, purify and isolate polyhydroxyalkanoate (PHA) biopolymers from PHA-containing cell mass, which includes: (a) solubilizing the non-PHA cell mass...
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7514524 |
Methods for producing and purifying 2-hydrocarbyl-3,3-bis(4-hydroxyaryl)phthalimidine monomers and polycarbonates derived therefrom
Disclosed herein is a method comprising reacting a phenolphthalein material and a primary hydrocarbyl amine in the presence of an acid catalyst to form a reaction mixture comprising...
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7514521 |
Method for preparing a dialkyl carbonate, and its use in the preparation of diaryl carbonates and polycarbonates
Unexpected corrosion of downstream sections of a dialkyl carbonate manufacturing apparatus has been traced to alkyl chloroformate impurities, which slowly decompose to yield hydrochloric acid. An...
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7511115 |
Method of preparing biodegradable polyester polymer material in the form of filament and sheet using compressed gas
Embodiments of the present invention may provide a method of preparing biodegradable polyester polymer materials both in a filament type and a sheet type using a compressed gas. The method of the...
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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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7504474 |
Poly(trimethylene therephthalate) continuous manufacturing process
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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7504473 |
Conductive polymeric compositions for lithium batteries
Novel chain polymers comprising weakly basic anionic moieties chemically bound into a polyether backbone at controllable anionic separations are presented. Preferred polymers comprise orthoborate...
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7498399 |
Method of preparing ester-substituted diaryl carbonates
An improved method for the preparation of ester-substituted diaryl carbonates prepared by reacting phosgene with recycle streams of ester-substituted phenols from reaction processes using a...
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7498385 |
Polyester compositions, methods of manufacturing said compositions, and articles made therefrom
Crosslinked polymer compositions have backbones with first and second divalent saturated aliphatic moieties, a divalent saturated aliphatic secondary alcohol moiety, and a trivalent saturated...
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7495067 |
Polyester process using a pipe reactor
The invention is directed to polyester processes that utilizes a pipe reactor in the esterification, polycondensation, or both esterification and polycondensation processes. Pipe reactor processes...
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7491752 |
Photoactive materials
Photoreactive dendrimers comprising a core portion, branching units and terminal groups, wherein at least one terminal group and/or branching unit is a photoreactive group and wherein the photo...
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7491751 |
Method for processing polyester wastes
A method for processing polyester wastes, especially used polyester bottles, which comprises shredding, washing, drying and melting the waste mixture to obtain a starting raw material wherein a...
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7479526 |
Hydroxy-functional binder components
The invention relates to hydroxyl-functional binder components ABC containing a linear or branched main chain having a polymethylene structure —(CH 2 ) n — or a polyester structure or a...
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7479518 |
Alkyd resin emulsions for coating varnishes
Disclosed are alkyd resin emulsions for coating varnishes, containing a water-insoluble alkyd resin A and a water-soluble alkyd resin B that is used as an emulsifying resin and represents an...
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7476344 |
Electrical apparatuses containing polytrimethylene homo- or copolyether glycol based electrical insulation fluids
Electrical apparatuses and a method for their production, the apparatuses containing electrical insulation fluids comprising polytrimethylene homo- or copolyether glycol having a dielectric...
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