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7622415 |
Polymerization catalyst composition for ethylene oxide and proces for the production of poly(ethylene oxide) with the same
Provided are a polymerization catalyst composition for ethylene oxide which can give polyethylene oxide having a molecular weight lower than that of the prior art and a relatively narrow molecular...
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7595367 |
Poly(arylene ether) preparation method
Capped poly(arylene ether)s are prepared by a method that includes reacting a poly(arylene ether) with a capping agent to form a capping reaction mixture, washing the capping reaction mixture with...
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7524923 |
Suzuki polycondensation for preparing aryl polymers from dihalide monomers
Methods for synthesizing aryl polymers, and uses for such polymers, are provided.
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7504476 |
Poly(arylene sulfide) and production process thereof
A dehydration step is conducted by heating a mixture containing an organic amide solvent and a sulfur source including an alkali metal hydrosulfide, and a part of an overall charged amount of an...
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7442759 |
Water-soluble polythiophene polymers
The invention provides a water-soluble polymer having formula I:
where R 1 and R 2 are independently —H, -alkylCO 2 A, —(CH 2 ) n -aryl-(CH 2 ) n CO 2 A, —(CH 2 ) n -heterocycle-(CH 2 )...
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7399529 |
Aminoplast resin composition
Resin compositions, methods of forming such resin compositions, methods of using such resin compositions and substrates treated with such resin compositions are disclosed. One of such resin...
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7348396 |
Modified polyethylenephosphinic acids and their salts
The invention relates to polymeric phosphinic acids and their salts of the formula (I)
where
X is hydrogen or 1/m of a metal of valency m, or is a protonated nitrogen base, R 1 and R 2 are...
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7297415 |
Processes for producing polymeric fluorescent material and polymeric luminescent element
A method for producing a polymeric fluorescent substance characterized by comprising the step of treating with an acid a polymeric fluorescent substance that is fluorescent in a solid state and has...
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7259231 |
Extraction and fractionation of biopolymers and resins from plant materials
A method for the extraction, separation, fractionation and purification of biopolymers from plant materials using supercritical and/or subcritical solvent extractions is disclosed. Specifically,...
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7169881 |
Aminoplast resin compositions
Resin compositions, methods of forming such resin compositions, methods of using such resin compositions and substrates treated with such resin compositions are disclosed. One of such resin...
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7129320 |
Modified polyethylenephosphinic acids and their salts
The invention relates to polymeric phosphinic acids and their salts of the formula (I)
where
X is hydrogen or 1/m of a metal of valency m, or is a protonated nitrogen base, R 1 and R 2 are...
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7105193 |
Process for making a silicone mold and baking a food product therein
The present invention relates to a process for baking a food product utilizing a confectionery mould made from silicone. The confectionery mould is obtained by mixing and reacting a crosslinkable...
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7098299 |
Separation of contaminants from polyester materials
The present invention is generally directed to a process for separating and recovering post-consumer polyester from various contaminant materials. The invention can be utilized to separate...
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7091305 |
Copolymers of amino acids and methods of their production
Disclosed are copolymers based on aspartic acid or its precursor molecules and methods of their production. The copolymers are water-soluble over a wide range of composition and molecular weight....
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7074877 |
Resin for use in manufacturing wet friction materials, manufacturing method thereof and wet friction material
A resin for use in manufacturing wet friction materials which contributes to enhancing durability of manufactured wet friction materials, a manufacturing method thereof, and a wet friction material...
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7070624 |
Process for separating polyester from other materials
The present invention is directed to a process for separating polyester, and particularly polyethylene terephthalate, from various contaminants and impurities. In general, the process includes the...
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7049010 |
Polymeric materials for electroluminescent devices
Provided is a conjugated poly(1,4-arylene vinylene) compound comprising an arylene unit having adjacent substituents, said substituents being oriented such as to affect the electronic structure of...
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6995234 |
Nanocomposites of dendritic polymers
In the present invention, an inorganic reactant is, or reactants are, localized with respect to a dendritic polymer by physical constraint within or by a non-covalent conjugation to the dendritic...
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6984717 |
Phosphorous containing materials, their preparation and use
The present invention is directed towards phosphorous containing organic materials, processes for making them and uses thereof. These materials preferably impart and/or exhibit resistance to...
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6936685 |
Method for isolating polyorganosiloxanes
The invention relates to a method for isolating polyorganosiloxanes from an aqueous dispersion, wherein the polyorganosiloxanes are separated from water in a dissolved form with the aid of an...
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6911518 |
Polyhedral oligomeric -silsesquioxanes, -silicates and -siloxanes bearing ring-strained olefinic functionalities
Processes have been developed for the manufacture of polyhedral oligomeric silsesquioxanes (POSS), polysilsesquioxanes, polyhedral oligomeric silicates (POS), and siloxane molecules bearing...
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6833430 |
Process for the production of polyacetylene derivatives
A process for the production of polyacetylene derivatives by which polyacetylene derivatives having an ability to discriminate asymmetry can be easily obtained in a few steps and in high yield and...
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6825313 |
Copolymers of amino acids and methods of their production
Disclosed are copolymers based on aspartic acid or its precursor molecules and methods of their production. The copolymers are water-soluble over a wide range of composition and molecular weight....
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6803082 |
Methods for the late introduction of additives into polyethylene terephthalate
The invention is a method for the late introduction of additives into polyethylene terephthalate. The method employs a reactive carrier that functions as a delivery vehicle for one or more...
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6780955 |
Mixture of catenate and cyclic siloxane oligomers, its preparation and use
The present invention provides a process for preparing a mixture, which mixture includes catenate and cyclic siloxanes of formula I R 3 Si—O—(SiR 2 —O—) m SiR 3 (I) and cyclic siloxanes...
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6770680 |
Method for recycling pet components and device for carrying out said method
A process for the recycling of PET flakes from comminuted PET bottles, wherein the flakes are subjected to a washing treatment, are treated for at least 20 minutes in at least one washer at an...
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6737504 |
Synthesis of substituted poly(aniline)s
A method for preparing a wide range of substituted poly(aniline)s from a single precursor is described. The method uses a variety of reactions, including a boron activation/electrophilic...
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6699958 |
Colorless phenol-formaldehyde resins that cure colorless
The present invention is directed to compositions and a process leading to colorless or light colored aqueous phicinol-formaldelhyde resoles. Unlike previous technologies, these compositions lead...
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6664366 |
Thermally stable polymers, method of preparation, and articles made therefrom
Thermally stable polymers comprising chain members derived from at least one 1,3-dihydroxybenzene moiety and at least one aromatic dicarboxylic acid moiety, said polymer being substantially free of...
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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...
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6646094 |
Low emission formaldehyde resin and binder for mineral fiber insulation
A phenol-formaldehyde resole resin is prepared using a high level of catalyst at a polymerization temperature of about 63° C. The endpoint, measured by salt water tolerance, is selected so that...
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6620908 |
Method for making 2,6-xylenol
A method for making 2,6-xylenol is described. One embodiment of the method comprises: preparing a magnesium-based solid catalyst composition by dry-blending basic magnesium carbonate with at least...
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6620907 |
Process for the elimination of materials containing hydrolyzable halides and other high molecular weight materials from epihalohydrin derived epoxy resins
The present invention provides a process for eliminating contaminants from epihalohydrin-derived epoxy resins. Another embodiment of the present invention is an epoxy product formed using said...
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6599596 |
Methods of post-polymerization injection in continuous polyethylene terephthalate production
The invention is a novel method for the late introduction of additives into a continuous process for making polyethylene terephthalate. The method employs a reactive carrier that functions as a...
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6590069 |
Methods of post-polymerization extruder injection in condensation polymer production
The invention is a novel method for the late introduction of additives into condensation polymers. The method employs a reactive carrier that functions as a delivery vehicle for one or more...
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6590064 |
Use of heterogeneous catalysts in methods for the production of polyamides
Described is the use of metal oxides as heterogeneous catalysts in a process for producing polyamides by polymerization of lactams and optionally further polyamide-forming monomers wherein the...
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6590019 |
Aqueous adhesive compositions useful as bottle labeling adhesives
An water based adhesive useful for bottle labeling applications. The adhesive contains styrene maleic anhydride and rosin, and provides a formulation with alkali sensitivity at moderate temperature...
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6573359 |
Methods of post-polymerization injection in condensation polymer production
The invention is a novel method for the late introduction of additives into a process for making condensation polymers. The method employs a reactive carrier that functions as a delivery vehicle...
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6573358 |
Process for the preparation of superabsorbent polymers from polyacrylonitrile precipitation polymers
A process for the preparation of superabsorbers is disclosed. The process entails subjecting a polyacrylonitrile precipitation polymer alkaline hydrolysis to obtain a hydrolysis product. The...
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6569987 |
Process for producing meta-aromatic polyamide fiber
To produce meta aramid filaments having a good quality from a polymer solution of a meta aramid produced by a solution polymerization method, with high efficiency, (1) a meta aramid is prepared by...
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6569982 |
Curable polyphenylene ether resin, composition made therefrom, and process for preparing the resin
The present invention provides a curable polyphenylene ether (PPE) resin, a composition made therefrom, and a process for preparing the resin. The process involves introducing a vinyl...
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6566488 |
Polyarylensulfide, polyarylensulfide resin composition, method for producing polyarylensulfide
Provided are a polyarylene sulfide having a chloroform soluble content of at most 0.5% by weight and having an inherent viscosity ηinh of from 0.05 to 0.4; a polyarylene sulfide resin composition...
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6498208 |
Polystyrene nanocomposite optical plastic article and method of making same
An optical nanocomposite material has a nanoparticulate filler dispersed in a host plastic material. According to the method of making the nanocomposite material, a predetermined temperature...
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6492300 |
Methods for preparing polyphenylene ether resin
A method for preparing a polyphenylene ether resin is described. In one embodiment the method comprises: preparing a magnesium-based alkylation catalyst, by dry-blending at least one filler with a...
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6458230 |
Preparation of recyclable fiber composites
A process for preparing recyclable fiber composites, comprising bonding fibers with a polymeric bonding agent applied as an aqueous polymer dispersion to said fibers, the polymeric bonding agent...
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6451967 |
Method of drying saponified ethylene-vinyl acetate copolymers
A method of drying saponified ethylene-vinyl acetate copolymers which includes melting and kneading a mixture including one or more saponified ethylene-vinyl acetate copolymer species and having a...
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6429267 |
Process to reduce the AOX level of wet strength resins by treatment with base
Process for reducing the AOX content of wet-strength resins, such as polyaminopolyamide-epi or polyalkylene polyamine-epi resins, by treatment with base, e.g. sodium hydroxide, while maintaining...
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6426399 |
Methods for the synthesis and polymerization of α,α'-dihalo-p-xylenes
The present invention describes an improved method for the polymerization of α,α-dihalo-p-xylene's such as the α,α′-dihalo-2-methoxy-5-(2-ethylhexyloxy)-xylene's. The procedure for synthesis...
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6395871 |
Methods for preparing an alkylation catalyst, and for ortho-alkylating hydroxyaromatic compounds; and related compositions
A method for preparing a solid catalyst composition is described. A magnesium reagent which yields magnesium oxide upon calcination, and which includes reduced levels of chlorides and calcium, is...
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6384179 |
Polyacetal resin composition
A polyacetal resin composition comprising 30-90% by weight of polyacetal copolymer (A) having a melt index of less than 1.0 g/10 min. and 70-10% by weight of polyacetal copolymer (B) having a melt...
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