|
Match
|
Document |
Document Title |
|
|
7619053 |
Monomer solution for producing polycarbonate
A non-reactive monomer mixture has a monomer component dispersed in a melted diaryl carbonate. The monomer component has one or more monomer compounds having a melting point below the melting point...
|
|
|
7615605 |
Monomer solution for producing polycarbonate
A non-reactive monomer mixture contains a monomer component and a diaryl carbonate dispersed in the mixture. The monomer component includes one or more monomer compounds having a melting point...
|
|
|
7608678 |
Hydrolytically degradable polymers and hydrogels made therefrom
A water soluble polymer is described, the water soluble polymer comprising multiple hydrolytically degradable carbonate linkages in a backbone and, for each carbonate linkage in the backbone, an...
|
|
|
7608677 |
Method for preparing polymeric organic iridium compositions
The present invention provides a method for the preparation of polymeric organic iridium complexes useful in electronic devices such as OLEDs. The method provides polymeric organic iridium...
|
|
|
7601794 |
Monomer solution for producing polycarbonate
A non-reactive monomer mixture is formed from a dihydroxy component having one or more dihydroxy compounds dissolved in a melted diaryl carbonate. The dihydroxy component has less than 600 ppb...
|
|
|
7589165 |
Polycarbonates having a good wettability
Polycarbonate resin containing small amounts of carbamate compounds is disclosed. The resin that contains at least one of compounds conforming to
wherein
R 1 and R 2 independently of one...
|
|
|
7585930 |
Method of decomposing a polycarbonate
A method of decomposing a polycarbonate with water in a supercritical or subcritical state. A high-purity dihydroxy compound which is a constituent component of the polycarbonate can be recovered...
|
|
|
7585565 |
Multilayered film made of (meth)acrylate copolymer and polycarbonate
The invention relates to a multilayered film comprising at least one upper layer a), a middle layer b) made of (meth)acrylate copolymer, and a supporting layer c) made of polycarbonate. Upper layer...
|
|
|
7582720 |
Light-scattering shaped articles of high light transmission and the use thereof in flat screens
The present invention relates to a solid sheet prepared from a composition that includes: (a) a transparent polycarbonate; and (b) transparent polymeric particles having an optical density which...
|
|
|
7582355 |
Optical unit using plastic lenses
The present invention provides an optical unit for high-resolution applications all lenses in which are made of plastics. The optical unit includes lens ( 1 ) and ( 2 ). The lens ( 1 ) is a plastic...
|
|
|
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...
|
|
|
7563858 |
Method for stably producing an aromatic polycarbonate
A method for stably producing an aromatic polycarbonate, which comprises continuously reacting an aromatic dihydroxy compound with a diaryl carbonate in a closed, reactor-pipeline system, the...
|
|
|
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...
|
|
|
7547755 |
(Co)polycarbonates having improved adhesion to metals
A (co)polycarbonate the molecular structure of which contains units derived from bisphenols conforming to formulae (1a 1 ) and (1b 1 )
in which R 1 independently of one another represents...
|
|
|
7544761 |
Polythiourethane
Disclosed is a polythiourethane having a high refractive index and low dispersion which is obtained through a reaction between a polythiol component containing one or more polythiocarbonate...
|
|
|
7544760 |
Polymerizer device for producing an aromatic polycarbonate
It is a task of the present invention to provide a polymerizer device and a polymerizer system which enable the production, by melt transesterification, of a high quality, high performance aromatic...
|
|
|
7544745 |
Flame retardant thermoplastic polycarbonate compositions, method of manufacture, and method of use thereof
A flame retardant thermoplastic composition comprising in combination a polycarbonate component; an impact modifier composition, the components of the impact modifier composition comprising a) a...
|
|
|
7541420 |
Method for making molded polycarbonate articles with improved color
A method for preparing a molded article includes the steps of (a) obtaining a polycarbonate resin and (b) molding the polycarbonate resin. The polycarbonate resin is made by a transesterification...
|
|
|
7541419 |
Branched polycarbonate resin and process for production thereof
A branched polycarbonate resin prepared from a divalent phenol, a carbonate precursor, a branching agent, and a chain terminating agent is provided, in which the branching agent is composed of a...
|
|
|
7541418 |
Transparent thermoplastic antimicrobial molding composition
A transparent antimicrobial thermoplastic molding composition is disclosed. The composition contains aromatic polycarbonate resin and 0.01 to 3.8 of an antimicrobial compound conforming to formula...
|
|
|
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...
|
|
|
7541416 |
Polycarbonate copolymer and process for producing the same
A polycarbonate copolymer which comprises 30 to 70 mol % of a structural unit comprising a bisphenyl fluorene structure and 70 to 30 mol % of a structural unit comprising tricyclo [5.2.1.0 2.6 ]...
|
|
|
7534851 |
Method for purifying wastewater
The present invention provides a method for treating water containing phenolic material such as bisphenol A, phenol, para tertiary butyl phenol, and 1,1,1-tris(hydroxyphenyl)ethane, as well as...
|
|
|
7531616 |
Process for industrial production of an aromatic carbonate
It is an object of the present invention to provide a specific process that enables aromatic carbonates to be produced with high selectivity and high productivity stably for a prolonged period of...
|
|
|
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...
|
|
|
7528214 |
Methods for preparing transparent articles from hydroquinone polycarbonate copolymers
A method for producing a transparent article comprises the steps of melt transesterifying a monomer mixture in the presence of a transesterification catalyst to produce a hydroquinone polycarbonate...
|
|
|
7528213 |
Method for efficiently producing an aromatic polycarbonate
It is a task of the present invention to provide a method which enables the production of a high quality, high performance aromatic polycarbonate (which is colorless and has excellent mechanical...
|
|
|
7524919 |
Polycarbonate-polysiloxane copolymers, method of making, and articles formed therefrom
A polycarbonate copolymer comprising 90 to 100 mol % of units derived from a cyclohexylidene bisphenol of the formula
wherein R a′ and R b′ are each independently C 1-12 alkyl, T is a C...
|
|
|
7521521 |
Highly functional highly branched or hyperbranched polycarbonates and the production and use hereof
High-functionality highly or hyper-branched polycarbonates based on dialkyl or diaryl carbonates and on aliphatic diol or polyols, processes for preparing them, and their use for preparing printing...
|
|
|
7521119 |
Windows and other articles made from DMBPC polycarbonate homopolymer and copolymer
Windows and other articles made from dimethyl bisphenol cyclohexane (DMBPC) polycarbonate exhibit enhanced scratch resistance properties and Mw degradation resistance properties as compared to...
|
|
|
7517944 |
Process for producing polycarbonate
Provided a process for producing a polycarbonate which comprises reacting an aqueous alkali solution of a dihydric phenol with phosgene in the presence of an organic solvent to produce a...
|
|
|
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...
|
|
|
7514523 |
Polycarbonate compositions and articles formed therefrom, with matte surfaces and high light transmissions
A composition is disclosed having a matte surface and high optical transmission characteristics. The composition comprises a polycarbonate and refractive index compatible polymer particles such as...
|
|
|
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...
|
|
|
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...
|
|
|
RE40697 |
Method for making an aromatic polycarbonate
This invention relates to an extrusion method preparing polycarbonates from a solution of an oligomeric polycarbonate. A mixture of bis(methyl salicyl)carbonate (BMSC), BPA and a...
|
|
|
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...
|
|
|
7504472 |
Rapidly crystallizing polycarbonate composition
This invention concerns a process for the preparation of semicrystalline polycarbonate compositions by synthesizing the polycarbonate in the presence of a sepiolite-type clay as a nucleating agent....
|
|
|
7501481 |
Process for production of copolycarbonates with reduced color
A method is provided for reducing the color generated during production of copolycarbonate that includes quinone-type residues. The method includes the steps preparing a reaction mixture containing...
|
|
|
7498401 |
Thermoplastic polycarbonate compositions, articles made therefrom and method of manufacture
A thermoplastic composition, contains a polycarbonate resin, a polycarbonate-polysiloxane copolymer, an aromatic vinyl copolymer, an impact modifier, and a mineral filler, wherein the composition...
|
|
|
7498400 |
Method of preparing polycarbonate
Polycarbonates incorporating terminal carbonate groups derived from ester-substituted activated carbonates in a transesterification process have unfavorable properties with respect to color,...
|
|
|
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...
|
|
|
7498398 |
Thermoplastic composition, method of making, and articles formed therefrom
A polyacrylate-polycarbonate copolymer comprises a polycarbonate block comprising aromatic carbonate units, and a polyacrylate block derived from a difunctional polyacrylate polymer having the...
|
|
|
7498397 |
Copolycarbonates, methods of manufacture, and uses thereof
A copolycarbonate of the formula
wherein 5 to 50 mole percent of the total number of R 1 groups is derived from a monomer of formula (2)
wherein each R f is independently at each...
|
|
|
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...
|
|
|
7495066 |
Copolycarbonate-polyesters, methods of manufacture, and uses thereof
A copolycarbonate-polyester, comprising units of formula
wherein at least 60 percent of the total number of R 1 groups are divalent aromatic organic radicals and the balance thereof are...
|
|
|
7495065 |
Method of preparing polycarbonate resin
A method of preparing a polycarbonate resin having improved thermal stability is provided. The method includes: mixing polycarbonate having hydroxy terminal groups and a end terminator, a compound...
|
|
|
7495064 |
Manufacture of polycarbonates
A method of producing a polycarbonate is provided. In an embodiment of the present invention the method includes the steps of: (i) introducing to a melt polymerization reactor system a reaction...
|
|
|
7495063 |
Reduced oligomer concentration in high purity polyalkylene glycols
Polyalkylene glycol compositions having reduced low molecular weight oligomers are disclosed. Some compositions, particularly polyethylene glycol compositions, have a number average molecular...
|
|
|
7491792 |
Polymer powder with block polyetheramide, use in a shaping process, and moldings produced from this polymer powder
Moldings can be produced from a polymer powder containing at least one block polyetheramide containing an oligoamide dicarboxylic acid and a polyetheramine; wherein the powder is suitable for use...
|