|
Match
|
Document |
Document Title |
|
|
7265196 |
Controlled crosslinked polyaryletherketone material with improved properties and a process by producing the same
The present invention relates to a controllable crosslinking polyaryletherketone with improved properties such as stiffness, heat resistance, and stability as shown by any one of the following...
|
|
|
7259223 |
Process for the production of polycarbonate
A process for the production of polycarbonate having increased end-cap levels, the process comprising adding a terminal blocking agent of the formula:
wherein R 1 is a propoxy or butoxy...
|
|
|
7259224 |
Hydrolytically degradable polymers and hydrogels made therefrom
A water soluble polymer is provided having two or more oligomers linked to each other by hydrolytically degradable carbonate linkages. The polymer can be hydrolytically degraded into oligomers...
|
|
|
7253247 |
Method of making aromatic dihydroxy diacid dihalides and precipitates resulting therefrom
A method of making an aromatic dihydroxy diacid dihalide comprises forming a solution of an aromatic dihydroxy diacid in a solvent, contacting the aromatic dihydroxy diacid solution with a...
|
|
|
7253246 |
Thermosetting polycarbodiimide copolymer
A thermosetting polycarbodiimide copolymer of the present invention comprises in a molecule thereof, a soft segment containing at least one residue formed by removing opposite functional end groups...
|
|
|
RE39753 |
Retardation film and optical device employing it
A retardation film comprised of a single oriented polymer film, characterized in that the retardation at wavelengths of 450 nm and 550 nm satisfies the following formulae (1) and/or (2), and the...
|
|
|
7250483 |
Inhibition of catalytically active impurities in polycarbonate by the melt transesterification process
An improvement to the melt transesterification process for the preparation of polycarbonate is disclosed. The improvement entails adding to the process between its medium viscosity reactor and a...
|
|
|
7244804 |
Polycarbonate copolymer, resin composition, and molded article
There are provided a polycarbonate copolymer (A) which has excellent light resistance and heat resistance and comprises an aromatic dihydroxy component comprising 5 to 95 mol % of...
|
|
|
7232865 |
Transparent and high-heat polycarbonate-polysiloxane copolymers and transparent blends with polycarbonate and a process for preparing same
A method is provided for making siloxane polycarbonate copolymers and blends of other polycarbonates with such copolymers wherein the copolymers and blends have excellent transparency and physical...
|
|
|
7232877 |
Preparation of oligomeric cyclocarbonates and their use in ionisocyanate or hybrid nonisocyanate polyurethanes
A method and apparatus for synthesis of oligomeric cyclocarbonates from epoxy compounds and carbon dioxide in the presence of a catalyst. Star epoxy compounds and their preparation and use in...
|
|
|
7223451 |
Polycarbonate-based oriented film and retardation film
A uniaxially or biaxially oriented film which is made from a specific polycarbonate having a fluorene ring and a glass transition temperature of 165° C. or higher and which has a heat shrinkage...
|
|
|
7211641 |
Liquid crystal polycarbonates and methods of preparing same
Liquid crystal polycarbonates are made by forming a reaction mixture containing (a) an activated diaryl carbonate; (b) at least two species of aromatic diols selected from among resorcinol,...
|
|
|
7208145 |
Polymeric reagents comprising a ketone or a related functional group
Polymeric reagents comprising a polymer attached, either directly or through one or more atoms to a ketone or a related functional group such as ketone hydrate, thione, monothiohydrate,...
|
|
|
7208564 |
Branched polyformals and copolyformals their preparation and use
A branched (co)polyformal is disclosed. The (co)polyformal contains structural units conforming to at least one the general formulae (1a) and (1b)
wherein each of -E- and -D- independently of...
|
|
|
7205376 |
Processes for the production of cumene, polyetherimides, and polycarbonates
A method for the manufacture of polycarbonate by combining methane and inlet water to produce methanol, converting the methanol to propylene, gasoline aromatics, and gasoline olefins, converting...
|
|
|
7205375 |
Optical disk substrate and lightguide plate
An optical disk substrate and a light guide plate which are formed from a resin composition comprising 0.1 to 20 parts by weight of compound represented by the following formula (I):
based on...
|
|
|
7201964 |
Molded polycarbonate articles having improved optical and processing properties
A transparent sheet having improved optical properties is disclosed. The sheet that features a deviation angle α ε (min) according to DIN 52305-A-AS of ≦2.0 and a refracting power D ε (min)...
|
|
|
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...
|
|
|
7199208 |
Polyformals and copolyformals with reduced water absorption, production and use thereof
A thermoplastic molding composition comprising a linear (co)polyformal is disclosed. The (co)polyformal corresponds to formulae (Ia) or (Ib),
in which A independently denotes hydrogen or...
|
|
|
7189796 |
Aromatic polycarbonate resin composition
An object of the present invention is to provide an aromatic polycarbonate resin composition having good rigidity and good hydrolysis resistance. The present invention is an aromatic polycarbonate...
|
|
|
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...
|
|
|
7179880 |
Cosmetic preparation containing polycarbonates
A cosmetic and/or pharmaceutical composition containing: (a) a polycarbonate having a molecular weight of from about 300 to 100,000; (b) optionally, an oil component; (c) optionally, an emulsifier;...
|
|
|
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...
|
|
|
7166687 |
Translucent thermoplastic composition, method for making the composition and articles molded there from
A thermoplastic composition comprising a matrix of a polycarbonate polymer in which are embedded polysiloxane domains with an average domain size between 20 and 45 nanometers. Said compositions can...
|
|
|
7157544 |
Process for producing polycarbonate oligomer and process for producing polycarbonate resin using the same
A process for producing an aromatic polycarbonate oligomer according to an interfacial polymerization method comprising reacting an aqueous solution of a bisphenol compound and phosgene in the...
|
|
|
7151189 |
Method and apparatus for waste stream recovery
A method for recovering a product mixture from a waste stream in a diaryl carbonate manufacturing process comprising reacting the waste stream with an alkyl alcohol to form a reaction mixture, and...
|
|
|
7148312 |
Preparation method of high molecular weight polycarbonate resin
The present invention relates to a method for the preparation of a high molecular weight polycarbonate resin, and more particularly to a method for preparing a high molecular weight polycarbonate...
|
|
|
7148313 |
Polycarbonate resin composition and molded articles thereof
A polycarbonate resin composition comprising 100 parts by weight of a polycarbonate resin (component A), 0.01 to 10 parts by weight of at least one ultraviolet light absorber (component B) selected...
|
|
|
7144971 |
Polycarbonates and photoconductive imaging members
A polycarbonate generated from the polymerization of a protected hydroxylated bisphenolic compound, a bisphenol, a monophenolic endcapping agent, a bisphenol haloformate, and a curing compound, and...
|
|
|
7141640 |
Process for producing dihydroxy compounds using upflow reactor system
An upflow reactor for the production of bisphenol A from acetone and phenol includes a vessel, a catalyst bed disposed within the vessel, and a reactant distribution/product collection system...
|
|
|
7141641 |
Method and apparatus for production of alkyl aryl ether and diaryl carbonate
A method and apparatus for continuously producing an alkyl aryl ether and a diaryl carbonate by reacting a dialkyl carbonate and an aromatic alcohol in presence of a transesterification catalyst.
|
|
|
7138478 |
Process for mixing polymer melts with additives
A continuous process for mixing polymer melts with additives, in particular polycarbonate melts with additives in liquid form, in solution or in dispersion is described. The additives are added to...
|
|
|
7138479 |
Aliphatic diol polycarbonates and their preparation
The disclosure provides high quality, low yellowness index copolycarbonates comprising structural units derived from at least one aliphatic diol, at least an aromatic dihydroxy compound and a...
|
|
|
7135538 |
Transparent polycarbonate-polysiloxane copolymer blend, method for the preparation thereof, and article derived therefrom
A composition includes a polycarbonate-polysiloxane block copolymer that has at least one polycarbonate block and at least one polysiloxane block, and a surface modifying agent that includes at...
|
|
|
7132498 |
Process to make polycarbonate from bismethylsalicylcarbonate (BMSC)
The present invention relates to a method of preparing polycarbonate comprising the steps of: (i) introducing to an extruder through a feed port a plurality of reaction components comprising a...
|
|
|
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...
|
|
|
7129315 |
Process for the production of polycarbonate
A process for the isolation of polycarbonate produced by the interfacial polymerization process is disclosed. Accordingly, the process entails (a) evaporating the organic solvent from the solution...
|
|
|
7125954 |
Method for producing polyether polymers
A method of making a polyether polymer comprises reacting a salt of a dihydroxy-substituted aromatic hydrocarbon with a substituted aromatic compound of formula (I)
|
|
|
7125951 |
Monomers containing at least one biaryl unit and polymers and derivatives prepared therefrom
The invention relates to bisphenol monomers containing one or more biaryl units and related polymers, derivatives and resins thereof and more particularly to Bisphenol monomers containing two...
|
|
|
7125558 |
Process for the preparation of activated polyethylene glycols
The present invention relates to a process for the preparation of activated polyethylene glycols, or PEG(NPC) 2 s, comprising reacting polyethylene glycol with an activator while in the presence of...
|
|
|
7122613 |
Method for the production of polycarbonates
A method for the manufacture of a polycarbonate which comprises reacting a carbonate precursor with a dihydroxy compound in the presence of an aqueous base in an inert organic solvent optionally...
|
|
|
7122614 |
Aromatic polycarbonate resins for optical disk substrates
The present invention provides an aromatic polycarbonate resin product for producing optical disc substrates of high reliability at high molding yield. The aromatic polycarbonate resin for optical...
|
|
|
7118799 |
Thermoplastic article 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...
|
|
|
7118806 |
Plastic molded product having photochromic characteristic and/or polarizing characteristics
A plastic molded article laminated a layer with a photochromic property and/or a layer with a polarization property on at least one side of a base material, said base material being a polycarbonate...
|
|
|
7115700 |
Method of polycarbonate preparation
Polycarbonates containing low or undetectable levels of Fries rearrangement products and comprising repeat units derived from one or more of resorcinol, hydroquinone, methylhydroquinone, bisphenol...
|
|
|
7112645 |
Polycarbonate composition and method of making thereof
A polycarbonate composition comprises chloride, sulfate, phosphate or a combination of two or more of the foregoing ionic species in an amount of zero to about 100 parts per billion based on the...
|
|
|
7112702 |
Process for the synthesis of bisphenol
A commercial scale continuous process for the production of a bisphenol comprising reacting a phenol and a ketone in the presence of a modified ion exchange resin catalyst, wherein said modified...
|
|
|
7112644 |
Aromatic polycarbonate resin, process for producing the same, optical-part molding material, and optical part
The present invention relates to an aromatic polycarbonate resin which comprises repetitive units originating in residual groups of a 2,2-bis(4-hydroxyphenyl)adamantane compound and a...
|
|
|
7112647 |
Fluorinated polymer
An object of the present invention is to provide a fluorinated polymer of adequate molecular weight with excellent transparency in a wavelength range from visible to near infrared, and to also...
|
|
|
7105231 |
In-mold coating barrier for a substrate injection orifice
A substrate having a barrier comprising a raised rim to prevent an in-mold coating from flowing into a gate pin assembly or substrate injection inlet area wherein a substrate is injected into the...
|