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WO/2003/106464 |
The invention relates to a catalyst consisting of a zinc complex reacted with SO2 and comprising carboxylate or diketiminate ligands. Said catalyst is used in the copolymerisation of oxiranes with CO2.
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WO/2003/100206 |
The present invention relates to a process for preparing high molecular weight polycarbonate resin, particularly to a process for preparing high molecular weight polycarbonate resin, which conducts condensation polymerization of low mole...
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WO/2003/096330 |
Polycarbonate compositions incorporating long chain alkylphenol endgroups, for example cardanol, show enhanced pit replication characteristics when molded into optical disks. The enhancement in molding performance is especially pronounce...
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WO/2003/095328 |
A method of preserving dried polycarbonate resin characterized in that dried polycarbonate resin is preserved by sealing it in a moisture impermeable flexible bag. According to the invention, it is possible to provide a method of preserv...
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WO/2003/095521 |
A method for producing a thermoplastic sheet includes extruding a composition including a melt polycarbonate resin having a Fries content of about 10 ppm to about 2000 ppm. The composition enables the sheet to be extruded with excellent ...
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WO/2003/093345 |
According to a method for producing polyesters, the esterification of dicarboxylic acids and diols ensues in at least one reaction stage, the pre-polycondensation of the esterification product ensues in at least one reaction stage, and t...
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WO/2003/093382 |
A process for the making of a film comprising dissolving a polycarbonate resin in an organic solvent to form a dissolved resin wherein the polycarbonate resin comprises a polycarbonate that exhibits favorable haze; casting a film of the ...
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WO/2003/093344 |
The invention provides novel self-emulsifying diblock copolymers and novel self-emulsifying compositions comprising an active ingredient and a diblock copolymer characterized in that the diblock copolymer is liquid at a temperature below...
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WO/2003/093897 |
A polymeric substrate comprising a high glass transition temperature polycarbonate for use in optical display devices and light emitting devices is provided in the present invention. A liquid crystal display, an organic electroluminescen...
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WO/2003/090922 |
A method for manufacturing polycarbonate comprises: measuring a molar ratio of a carbonic acid diester to a dihydroxy compound in a reactor system using an online analyzer; controlling a supply of at least one of the dihydroxy compound a...
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WO/2003/089495 |
A branched aromatic polycarbonate which is excellent in hue and excellent in melt characteristics such as melt strength. In particular, a branched aromatic polycarbonate of 16,000 or more viscosity-average molecular weight obtained by a ...
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WO/2003/087190 |
A method of preparing polyestercarbonates is presented in which a mixture of at least one activated diaryl carbonate is reacted under melt polymerization conditions with at least one aromatic dihydroxy compound together with at least one...
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WO/2003/087030 |
A process for efficiently producing a carbonic ester in high yield from an aromatic or aliphatic monohydroxy compound without using phosgene or chlorine gas and without using a halogenated organic solvent; and a process for producing a p...
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WO/2003/082797 |
An integrated process for the production of a dialkyl carbonate and a diol from an alkylene oxide, carbon dioxide and an aliphatic monohydric alcohol is described in which an alkylene oxide is first reacted with carbon dioxide in the pre...
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WO/2003/082952 |
A method for preparing a polycarbonate comprises preparing a free hydroxylcontaining polycarbonate and reacting the hydroxyl-containing polycarbonate with a mixture of (B) a symmetrical optionally activated aromatic carbonic acid diest...
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WO/2003/082951 |
A copolycarbonate excellent in heat resistance and dimensional stability; and heat-resistant parts which each comprises the copolycarbonate and are suitable for use in various applications. The copolycarbonate comprises 5 to 95 mol% repe...
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WO/2003/082953 |
A method of recycling fusible polycondensation resin waste (1) in a fusion polymerization apparatus (4) is disclosed. The method of recycling polycondensation resins comprises adding polycondensation resin waste (1) directly to a fusion ...
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WO/2003/082950 |
A thermoplastic composition is described, based on a copolycarbonate which includes at least two structural units. Structure I is usually a conventional carbonate based on bisphenol A, while structure II is a bisphenol carbonate which in...
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WO/2003/080706 |
The invention relates to containers that contain polycarbonate, whereby said polycarbonate has defined extensional rheological properties. The invention further relates to the production and the use of said containers.
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WO/2003/080317 |
The invention relates to a plastic container having a homogenous wall thickness, and to the production of the same.
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WO/2003/078502 |
The invention relates to a process for making a modified thermoplastic polyester by reacting a thermoplastic polyester with a nitrogen-containing compound, wherein the thermoplastic polyester is first contacted in the solid state with an...
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WO/2003/076489 |
A polycarbonate is provided which contains residues of a dihydric phenol, at least one comonomer of a siloxane functional bisphenol, optionally, a branching agent and optionally, a flame retardant. Further embodiments of the present inve...
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WO/2003/070805 |
The present invention provides a water soluble, nonpeptidic polymer comprising two or more alkylene oxide-based oligomers linked together by hydrolytically degradable linkages such as carbonates. Typically, the oligomer portion of the po...
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WO/2003/068863 |
It is intended to provide aromatic polycarbonate resins for obtaining optical disk substrates which show a high yield in the step of molding and have a high reliability. Namely, aromatic polycarbonate resins for optical disk substrates h...
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WO/2003/064358 |
Fluorenone is condensed with a phenol [e.g., 2−(C1−4 alkyl)phenol] in the presence of both of a thiol and an aqueous hydrochloric acid solution to produce a fluorene derivative &lcub e.g., 9,9−bis[(C1−4 alkyl)hydroxyphenyl]fluore...
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WO/2003/062300 |
An aromatic polycarbonate resin which has repeating units derived from a residue of a 2,2−bis(4−hydroxyphenyl)adamantane compound or of a 1,3−bis(4−hydroxyphenyl)adamantane compound having one or more substituents on the aromatic...
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WO/2003/060936 |
The invention relates to a film for use as a dielectric in capacitors which has self-healing properties and to a method for producing said film which is made of amorphous polycarbonate
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WO/2003/057758 |
The invention relates to a method for the production of a branched polycarbonate composition, having increased melt strength, by late addition of branch-inducing catalysts to the polycarbonate oligomer in a melt polycondensation process....
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WO/2003/055936 |
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 provide a method of producing such a polymer...
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WO/2003/055932 |
A process for producing a polycarbonate by the interfacial polycondensation method, in which an organic solvent is stably and highly efficiently recovered at low cost from a gas which contains the organic solvent, e.g., methylene chlorid...
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WO/2003/050161 |
A process for the production of a branched aromatic polycarbonate that includes adding a branching agent to a polycarbonate oligomer, and producing a branched aromatic polycarbonate having a melt index ratio greater than an aromatic poly...
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WO/2003/050162 |
The specification provides a description of a superior method of making polycarbonate containing fewer particulates by using a specific filter system for filtering organic solvent solution of polycarbonate resulting from phase separator ...
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WO/2003/048230 |
A method for end capping polycarbonate resins, comprising the step of processing a mixture comprising a polycarbonate having free hydroxyl-end groups and an end-capping reagent in a melt transesterification reaction to produce a polycarb...
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WO/2003/042305 |
Disclosed are flame retardant resinous compositions comprising (i) at least one aromatic polycarbonate, (ii) at least one silicone source, (iii) at least one boron source, and (iv) optionally at least one member selected from the group c...
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WO/2003/042279 |
Polycarbonate resin containing reduced levels of reaction by-products can be prepared by adding to the polycarbonate a scavenging agent having the formula (1), wherein R¿1? is alkoxy, phenoxy, benzyloxy or phenyl, and R¿2? is a substit...
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WO/2003/041676 |
The invention relates to cosmetic and pharmaceutical preparations containing polycarbonates with a mean molar mass of 300 to 100 000. Said agents are characterized by improved water resistance and sensoric properties. The use of said pol...
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WO/2003/037998 |
Described is a photochromic article that includes a substrate and at least a partial coating of an at least partially cured polymerizable composition of a photochromic amount of at least one photochromic compound, at least one material h...
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WO/2003/038009 |
Described is a polymerizable composition of a photochromic amount of at least one photochromic compound, at least one material having at least one carbonate group and at least one hydroxyl group, and at least one monoisocyanate containin...
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WO/2003/031497 |
A method for end-capping polycarbonate resins, comprising the step of processing a mixture comprising a polycarbonate having free hydroxyl-end groups and an end-capping reagent in a melt transesterification reaction to produce a polycarb...
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WO/2003/031516 |
A polycarbonate composition of excellent quality containing a polycarbonate reduced in foreign−particle content which has been obtained through filtration with a polymer filer having a small opening size and has not undergone molecular...
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WO/2003/029324 |
A linear polycarbonate resin which is produced using as a chain terminator a long−chain monoalkylphenol wherein the alkyl group has an average carbon number of 12 to 35, the amount of the long−chain monoalkylphenol being 300 ppm or s...
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WO/2003/029240 |
The invention relates to a method for the production of alkylene carbonates having a molecular weight of less than 30.000 by bringing at least one alkylene oxide into contact with carbon dioxide in the presence of a double metal cyanide ...
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WO/2003/029325 |
The invention relates to a method for producing high−molecular aliphatic polycarbonates having the following properties: the average molecular weight Mw ranges from 30,000 to 1,000,000, and&semi the content of cyclic carbonates and pol...
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WO/2003/024908 |
Low-particulate dihydric aromatic compounds such as bisphenol A that can be used in the synthesis of low-particulate polycarbonates are prepared by introducing into a desorber column containing a non-aggregate packing material an adduct ...
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WO/2003/022905 |
Polycarbonate having increased end-cap levels is made by adding an end-capping agent to the polycarbonate, preferably after the polycarbonate has reached a number-average molecular weight of about 2,000 to 15,000 Dalton. The end-capping ...
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WO/2003/020794 |
A process for quenching a catalyst used in the manufacture of polycarbonate by melt polycondensation of a dihydroxy compound and a diester. The process includes adding a sulfonic acid ester quencher to the polycarbonate and extruding the...
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WO/2003/020483 |
A method for removing volatile components from wet, polymer powders using a vacuum vented extruder is described. Polymer powders containing substantial amounts of water, 1-20% by weight, are rapidly converted to polymer compositions cont...
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WO/2003/020795 |
A process for quenching a catalyst used in the manufacture of polycarbonate by melt polycondensation of a dihydroxy compound and a diester. The process includes adding a quencher composition to an intermediate polycarbonate to deactivate...
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WO/2003/021581 |
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WO/2003/020793 |
A method for preparing polycarbonates by melt polycondensation of a dihydroxy compound and a diarylcarbonate compound in the presence of an alkaline catalyst is described. A branching quencher compound is added to an intermediate polycar...
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