ПОЛИКАРБОНАТЫ И СОПОЛИКАРБОНАТЫ С УЛУЧШЕННОЙ АДГЕЗИЕЙ К МЕТАЛЛУ

... 1. (Со)поликарбонат, содержащий бисфенолы формул (1a1), (1b1) (изомерная смесь) в качестве повторяющегося мономерного звена ! , ! в которых ! R1 независимо друг о друга представляет собой водород или ! алкил с 1-10 атомами углерода и ! R2 представляет собой алкил с 1-10 атомами углерода или в некоторых случаях соответственно замещенный водородом и/или алкилом с 1-10 атомами углерода фенил или бензил, ! 2. (Со)поликарбонат согласно формуле 1, содержащий до 95 мол.% (в расчете на количество используемых дифенолов) дифенолов формулы (2) ! , ! в которой ! R3 и R4 независимо друг от друга представляют собой водород, алкил с 1-18 атомами углерода, алкокси с 1-18 атомами углерода, галоген соответственно в некоторых случаях замещенный арил или аралкил, и ! Х представляет собой одинарную связь, -SO2-, -СО-, -O-, -S-, алкилен с 1-6 атомами углерода, алкилиден с 2-5 атомами углерода или циклоалкилиден с 5-6 атомами углерода, который может быть замещен алкилом с 1-6 атомами углерода, арилен с 6-12 ...

УЗКО ПОЛИ- И МОНОДИСПЕРСНЫЙ ВОДОРАСТВОРИМЫЙ ОЛИГОМЕР, ФАРМАЦЕВТИЧЕСКИЙ ПРЕПАРАТ, СПОСОБ ПОЛУЧЕНИЯ ОЛИГОМЕРА, СПОСОБ ДИАГНОСТИКИ И/ИЛИ ЛЕЧЕНИЯ ВИРУСНЫХ ИНФЕКЦИЙ

Узко поли- и монодисперсные олигомеры настоящего изобретения являются полимочевинами, поликарбонатами, полиэфирами или полиамидами, имеющими довторность единицы от 3 до 50. Эти олигомеры являются водорастворимыми, предпочтительно имеют жесткий каркас, имеют повторяющиеся единицы, соединенные карбонильными связывающими составляющими, которые обладают анионными группами, проявляют преимущественно линейную геометрию, так что в водной среде между анионными группами существуют постоянные расстояния, и являются фармацевтически приемлемыми. Узко поли- и монодисперсные олигомеры применимы для лечения и/или диагностики СПИД и/или КСС или HSV инфекций.

MISCHPOLYESTER, VERFAHREN ZU DEREN HERSTELLUNG UND DEREN VERWENDUNG

Narrow poly- and mono-dispersed anionic oligomers, and their uses formulations and process.

The narroe poly- or mono dispersed oligomers of the present invention are polyureas, polycarbonates, polyesters or polyamides having a recurring unit of from 3 to 50. These oligomers are water-soluble, preferably have a rigid backbone, have recurring units coupled by carbonyl linking moieties which have anionic groups, display predominantly linear geometry such that regular spacing between anionic groups exists in an aqueous medium, and are pharmaceutically-acceptable. The narrow poly- or mono-dispersed oligomers are useful for the treatment and/or diagnosis of aids and/or arc or hsv.

NARROW POLY-AND MONO-DISPERSED ANIONIC OLIGOMERS AND THEIR USES,FORMULATIONS AND PROCESS

Narrow poly- and mono-dispersed anionic oligomers and their uses formulations and process

NARROW POLY-AND MONO-DISPERSED ANIONIC OLIGOMERS AND THEIR USES,FORMULATIONS AND PROCESS

PROCESS FOR PREPARING HALOGEN-SUBSTITUTED AROMATIC POLYCARBONATES

PHENOL PERCURSORS

Statistical mixtures of halogenated bisphenols with halogen-free bisphenols, a process for their preparation and their use for the preparation of high-molecular weight thermoplastic polycarbonates

The invention relates to statistical mixtures of halogenated bisphenols with halogen-free bisphenols and to processes for their preparation. This invention further relates to new aromatic, bromine-containing and/or chlorine-containing, high-molecular weight thermoplastic polycarbonates with good resistance to fire (oxygen index ≧ 36%) and good flow properties, to their preparation from the statistical mixtures of halogenated bisphenols and halogen-free bisphenols and to their use alone or as a mixture with halogen-free polycarbonates or with thermoplastic polyesters for the preparation of moldings, films and fibers.

PROCESS FOR PREPARING HALOGEN-SUBSTITUTED AROMATIC POLYCARBONATES

Verfahren zur Herstellung hochmolekularer,linearer Mischpolyester

NEUE OPTISCHE NICHTLINEARE ARYLHYDRAZONE UND OPTISCH NICHTLINEARE POLYMERE DAVON.

CLOSELY POLY AND MONO DISPERSE ONES ANIONI OLIGOMERE, THEIR USES, FORMULATIONS AS WELL AS PROCEDURES

Narrow poly- and mono-dispersed anionic oligomers, and their uses, formulations and process

THERMALLY STABLE CARBONATE POLYMER

This invention is directed to a carbonate polymer having improved thermal stability wherein the polymer has copolymerized therewith an effective amount of an oligomer having the formula H - ¢O-R-O-P (ORl)!n - O-R-OH wherein R is the divalent residue of a dihydxic mononuclear phenol or a dihydric polynuclear phenol, R1 is an alkyl, aralkyl or alkaryl group having from 1 to 25 carbons, and n is a number having an average value from 1 to 200.

BRANCHED, HIGH-MOLECULAR WEIGHT THERMOPLASTIC POLYCARBONATES

The invention relates to a process for the preparation of branched, thermoplastic, high-molecular weight and soluble polycarbonates having improved properties, by incorporation of 3,3-bis-(4-hydroxyaryl)-oxindoles as a branching agent. The invention further relates to the polycarbonates obtained in accordance with this process. The use of these specific branching agents imparts a pronounced structural viscosity behavior to the resulting branched polycarbonate yielding a grade of polycarbonate that is equally suitable to processing by extrusion and by injection molding techniques.

NONHALOGENATED FLAME RESISTANT COPOLYCARBONATES

FREE-RADICAL GENERATING AROMATIC DIOLS, POLYCARBONATES CONTAINING THERMAL LABILE GROUPS AND THEIR CONVERSION TO POLYCARBONATE BLOCK COPOLYMERS

RD-19,696 FREE-RADICAL GENERATING AROMATIC DIOLS,POLYCARBONATES CONTAINING THERMAL LABILE GROUPS AND THEIR CONVERSION TO POLYCARBONATE BLOCK COPOLYMERS Bisphenols containing free-radical generating groups, such a-q bissilylpinacolate groups, are provided. These bisphenols can be used to make free-radical generating polycarbonate macroinitiators having thermally labile groups which can be heated with vinyl monomers, such as styrene to make polycarbonate block copolymers.

CHIRAL POLYMER COMPOSITIONS EXHIBITING NONLINEAR OPTICAL PROPERTIES

Chiral organic polymers doped with or appended by nonlinear optical dyes are disclosed. The use of chiral polymers produces a more stable noncentrosymmetric environment for the dye molecules resulting in unexpectedly long relaxation times as compared with previously used organic polymers. In addition, the NLO/chiral polymer materials exhibit high electro-optical coefficients (r33), high nonlinear optical coefficients (d33), improved long-term thermal stability, and at the same time retain the processing advantages associated with organic polymers. Thus, the present NLO/chiral polymer materials are extremely well-suited for use in second-order nonlinear optical and optoelectronics devices.

POLYCARBONATE-RESISTANT COMBUSTOR HAVING A CRITICAL THICKNESS AND IMPROVED PROCESS FOR PREPARING THE SAME

POLYCARBONATE RESIN COMPOSITION AND MOLDED BODY

This polycarbonate resin composition contains: (A) 100 parts by mass of a resin mixture containing a specific polycarbonate-polyorganosiloxane copolymer (A-1) and a specific polycarbonate-polyorganosiloxane copolymer (A-2), where in component (A), the siloxane unit content in the polycarbonate-polyorganosiloxane copolymer (A-1) is 1.0-15.0 mass% and the siloxane unit content in the polycarbonate-polyorganosiloxane copolymer (A-2) is 0.1-2.8 mass%; and (B) 0.01-0.08 parts by mass of at least one selected from an alkali metal salt of an organic sulfonic acid and an alkaline earth metal salt of an organic sulfonic acid.

Narrow poly- and mono-dispersed anoinic oligomers, and their uses, formulations and process

The narrow poly- or mono-dispersed oligomers of the present invention are polyureas, polycarbonates, polyesters or polyamides having a recurring unit of from 3 to 50. These oligomers are water-soluble, preferably have a rigid backbone, have recurring units coupled by carbonyl linking moities which have anionic groups, display predominantly linear geometry such that regular spacing between anionic groups exists in an aqueous medium, and are pharmaceutically-acceptable. The narrow poly- or mono-dispersed oligomers are useful for the treatment and/or diagnosis of AIDS and/or ARC or HSV.

САМОРАССАСЫВАЮЩИЕСЯ РЕНТГЕНОКОНТРАСТНЫЕ ПО СВОЕЙ ПРИРОДЕ ПОЛИМЕРЫ ДЛЯ МНОГОЦЕЛЕВОГО ИСПОЛЬЗОВАНИЯ

Изобретение относится к рентгеноконтрастному по своей природе биосовместимому, саморассасывающемуся полимеру, пригодному при изготовлении медицинских устройств (например, стентов), предназначенных для размещения в участке, выбранном из сосудистой, костно-мышечной/ортопедической, нервной, респираторной, репродуктивной, мочевой, пищеварительной, эндокринной, кроветворной или покрывной системы. Полимер содержит одно или более повторяющихся звеньев формулы (I) ! ! Настоящее изобретение также относится к системе для лечения участка внутри сосуда, содержащей стент и катетер, имеющий средства развертывания, а также к способу повторного лечения полости тела. Стенты, выполненные из заявленного полимера или покрытые таким полимером, являются гемосовместимыми для предотвращения острых тромбозов, препятствуют соединению и росту клеток гладкомышечной ткани сосудов, отвечающих за распространение рестеноза, а также сохраняют механическую прочность в течение длительного периода времени и могут использоваться ...

УЗКОПОЛИ- И МОНОДИСПЕРСНЫЙ ВОДОРАСТВОРИМЫЙ ОЛИГОМЕР, СПОСОБ ЕГО ПОЛУЧЕНИЯ, ФАРМАЦЕВТИЧЕСКИЙ ПРЕПАРАТ, СПОСОБ ИНГИБИРОВАНИЯ АКТИВНОСТИ ВИРУСОВ

Описывается узкополи- и монодисперсный водорастворимый олигомер, который имеет отношение полидисперсности 1,0 - 1,3 и который представляет полимочевину формулы (I), где R - атом водорода, С1-С4, алкильная группа, фенильная группа или фенильная группа, замещенная 1 - 2 фрагментами R1 и имеющая до 3 заместителей, независимо выбранных из атомов хлора или брома или С1-С4 алкильных групп; R1 - SO3 R2, - CO2R2, - PO3(R2)2 или - OPO3R2; R2 - атом водорода или фармацевтически приемлемый катион; m = 0 или 1 при условии, что если m = 0, R является атомом водорода; Х - ароматический заместитель, значения которого описаны в п.1 формулы; Y - -CO2-, -C=C-, -N=N- или (а), n = 3 - 15, целое число; R3 представляет -R или -X-NH2, где R и Х имеют приведенные выше значения. Соединения проявляют биологическую активность против вируса человеческого иммунодефицита. Описывается также фармацевтический препарат на их основе, способ получения олигомера, способ ингибирования активности вирусов. 6 с. и 20 з.п. ф-лы ...

САМОРАССАСЫВАЮЩИЕСЯ РЕНТГЕНОКОНТРАСТНЫЕ ПО СВОЕЙ ПРИРОДЕ ПОЛИМЕРЫ ДЛЯ МНОГОЦЕЛЕВОГО ИСПОЛЬЗОВАНИЯ

... 1. Рентгеноконтрастный по своей природе биосовместимый, саморассасывающийся полимер, где указанный полимер содержит одно или более повторяющихся звеньев формулы (I): где X1 и X2 каждый независимо выбран из группы, состоящей из Br и I; у1 и у2 каждый независимо представляет собой ноль или целое число в диапазоне от 1 до 4, при условии, что сумма у1 и у2, равна, по крайней мере, 1; R1 представляет собой ; R13 и R14 каждый независимо выбирают из группы, состоящей из -СН=СН-, -(СН2)C-, -(CHJ1)-, -CHJ2-CHJ3-, -CH=CH-(CHJ1)-, и -(CH2)c-(CHJ1)-; с представляет собой ноль или целое число в диапазоне от 1 до 8; J1, J2 и J3 каждый независимо выбирают из группы, состоящей из Н, Br, I, - NH-Q2 и -C(=Z8)-OQ3; Q1, Q2 и Q3 каждый независимо представляет собой Н или некристаллизующуюся группу, содержащую от 1 до приблизительно 30 атомов углерода; Z7 и Z8 каждый независимо представляет собой О или S; А1 выбирают из группы, состоящей из , and ; R5 выбирают из группы, состоящей из Н, C1-С30алкила, и C1-С30гетероалкила ...

PROCESS FOR THE PREPARATION OF HALOGEN-SUBSTITUTED AROMATIC POLYCARBONATES

... 1411925 Preparing polycarbonates BAYER AG 29 March 1974 [30 March 1973 20 Feb 1974] 14021/74 Heading C3R A process for preparing a polycarbonate from one or more aromatic dihydroxy compounds of which 50-100 mole per cent are tetrahalobisphenols comprises reacting the aromatic dihydroxy compounds with phosgene under phase boundary condensation conditions wherein (i) an aqueous alkaline solution of the bisphenols is reacted with phosgene in the presence of 2-20 mol per cent of a catalyst (referred to the dihydroxy compound) and at a pH of 7 to 9 to give an oligocarbonate with an end group ratio of chlorocarbonic acid ester to hydroxyl of more than 1.1 ; 1 and (ii) polycondensing the oligocarbonate at a pH of more than 13 and a hydroxyl concentration (referred to the aqueous phase) between 0.20 and 0.40% by weight. The examples describe preparing polycarbonates from tetra-chloro or bromo-bisphenol, optionally with bisphenol A using triethylamine as catalyst and p-tert-butylphenol or tribromophenol ...

Polycarbonates

New polycarbonate/polyester copolymers of molecular weight at least 20,000 contain the residues of (a) a bisphenol of formula wherein R is a phenylene radical which may be halo- or alkyl-substituted and wherein X and Y are hydrogen atoms, hydrocarbon radicals free from aliphatic unsaturation or together form a cycloaliphatic ring, (b) carbonic acid and (c) a 2,5-dihaloterephthalic acid (wherein the halogen is chlorine or bromine) in an amount of 1 to 25 mol per cent based on (a). The polymers are made by reacting the bisphenol or a sodium or potassium salt thereof, phosgene and a di-acid halide of the dicarboxylic acid (preferably by the interfacial process) or by reacting the bisphenol, a diester of carbonic acid (especially diphenyl carbonate) and a diester of a dicarboxylic acid. Chain-terminating agents, e.g. alkyl- or halo-phenols, may be included in the reaction mixture. Block copolymers may be made by first reacting the polycarbonate-forming reactants to form ...

POLYCARBONATES AND COPOLYCARBONATE WITH IMPROVED METAL ADHESION

A POLYMERIC SUBSTRATE FOR DISPLAY AND LIGHT EMITTING DEVICES

THERMALLY STABLE CARBONATE POLYMER

FLAME RETARDANT POLYCARBONATE HAVING IMPROVED CRITICAL THICKNESS

Mo-1609-F PC-009-I TITLE FLAME RETARDANT POLYCARBONATE HAVING IMPROVED CRITICAL THICKNESS Polycarbonates are provided having improved critical thickness values based on an aromatic diphenol, a halogenated dihydric phenol and an aromatic diphenol thioether. By incorporating an effective amount of the aromatic thiodiphenol based on the total diphenol content into the polymer the critical thickness and flame retardant characteristics of the polycarbonate is substantially improved. PC-009-I ...

NONHALOGENATED FLAME RESISTANT COPOLYCARBONATES

Mo-2277 PC-042 NONHALOGENATED FLAME RESISTANT COPOLYCARBONATES A thermoplastic aromatic copolycarbonate resin is provided having an enhanced flame retardance and characterized in that its molecular structure comprises polycondensation residues of wherein R and R' independently are organic radicals. PC-042 ...

Preparation of copolycarbonates

Polycarbonates

Polycarbonates are provided based on aromatic bis-hydroxy compounds which contain s-triazine compounds as linking members between 2 mols of the aromatic bis-hydroxy compounds bonded in each case via an oxygen atom thereof, on the one hand, and via carbon atoms of the s-triazine ring, on the other, the s-triazine rings carrying, on at least one further carbon atom, organic radicals with functional groups, these radicals being bonded via oxygen, nitrogen or sulphur. The novel polycarbonates may be used as selective solvents for hydrocarbons mixed with water or for making resins or coatings.

Aromatic polycarbonates with a special fluorine containing bisphenol constituent, their preparation and use

Novel aromatic polycarbonates contain, in at least part of their bisphenol component, bisphenols of the 1,1-bishydroxyphenylhexafluorodichloro-, -heptafluoromonochloro- or -octafluorocyclopentane type.

Inherently radiopaque bioresorbable polymers for multiple uses

POLYIMIDOSILOXANE ESTER CARBONATE COPOLYMERS

SILOXANE-CONTAINING POLYMERS

... - The properties of polymeric compositions can be improved by the presence of a polysiloxane unit of formula where Q is a substituted or unsubstituted aromatic group, Z is D is unsubstituted or substituted hydrocarbylene R1, R2, R3, R4, R5 and R6 each, independently, is unsubstituted or substituted hydrocarbyl. x, y and z each independently has a value from 0 to 100. Polyimides containing these units display improved solubility and adhesion; they are useful, among other things, as protective coatings.

PROCESS FOR PREPARING HALOGEN?SUBSTITUTED AROMATIC POLYCARBONATES

PHENOL PRECURSORS

Bisphenol compound containing aromatic alcohol sulfonate, process for producing the same, polycarbonate resin, method for producing same, and process for producing,bisphenol

Process for the isolation of polycarbonates based on 4,4'-dihydroxydiphenyl sulphones

RESIN COMPOSITION, METHOD FOR PRODUCING RESIN COMPOSITION AND RESIN COMPOSITION INTERMEDIATE

PROBLEM TO BE SOLVED: To provide a resin composition having excellent mechanical strength such as rigidity or impact resistance, surface hardness, thermal stability and transparency and suitably used as practical organic glass, etc., such as window glass. SOLUTION: The resin composition is obtained as follows. A surface layer having epoxy groups is formed on the surface of inorganic oxide fine particles having ≤380 nm average primary particle diameter and the resultant inorganic oxide fine particles are then compounded in a monomer of a polycarbonate resin to form a polymerization reaction solution. The polycarbonate resin is synthesized from the polymerization reaction solution by a transesterification method. Thereby, the resin composition in which the inorganic oxide fine particles are bound through the surface layer to the polycarbonate resin with covalent bonds and dispersed in the polycarbonate resin is produced. COPYRIGHT: (C)2006,JPO&NCIPI ...

ПОЛИКАРБОНАТЫ И СОПОЛИКАРБОНАТЫ С УЛУЧШЕННОЙ АДГЕЗИЕЙ К МЕТАЛЛУ

Настоящее изобретение относится к сополикарбонатам с повышенной температурой стеклования, а также с повышенной температурой эксплуатации и улучшенной адгезией к металлу. Сополикарбонат содержит, в качестве повторяющегося мономерного звена, изомерную смесь формул: ! ! где R1 представляет собой водород или алкил с 1-10 атомами углерода и R2 представляет собой алкил с 1-10 атомами углерода или при необходимости соответственно замещенный водородом и/или алкилом с 1-10 атомами углерода фенил или бензил; и дифенол формулы: ! ! где R3 и R4 представляют собой водород, алкил с 1-18 атомами углерода, алкокси с 1-18 атомами углерода, галоген, соответственно при необходимости замещенный арил или аралкил, X представляет собой одинарную связь, -SO2-, -CO-, -O-, -S-, алкилен с 1-6 атомами углерода, алкилиден с 2-5 атомами углерода или циклоалкилиден с 5-6 атомами углерода, который может быть замещен алкилом с 1-6 атомами углерода, арилен с 6-12 атомами углерода, который при необходимости сконденсирован ...

СТАТИСТИЧЕСКИЕ СОПОЛИМЕРЫ ФОСФОНАТА И КАРБОНАТА НА ОСНОВЕ БИСФЕНОЛА ВЫСОКОЙ МОЛЕКУЛЯРНОЙ МАССЫ

... 1. Статистический сополимер фосфоната и карбоната, содержащий распределенные по случайному закону мономерные звенья, полученные от карбонатных и фосфонатных мономеров, и имеющий содержание фосфора от приблизительно 2% до приблизительно 10% по массе относительно общего количества статистического сополимера фосфоната и карбоната.2. Статистический сополимер фосфоната и карбоната по п. 1, где статистический сополимер фосфоната и карбоната имеет средневесовую молекулярную массу от приблизительно 10000 г/моль до приблизительно 100000 г/моль, которая определена методом гельпроникающей хроматографии.3. Статистический сополимер фосфоната и карбоната по п. 1, где статистический сополимер фосфоната и карбоната имеет среднечисловую молекулярную массу от приблизительно 5000 г/моль до приблизительно 50000 г/моль, которая определена методом гельпроникающей хроматографии.4. Статистический сополимер фосфоната и карбоната по п. 1, где статистический сополимер фосфоната и карбоната имеет значение полидисперсности ...

THERMALLY STABLE CARBONATE POLYMER

Impact resistant polymers

FLAME RETARDANT HALOGEN CONTAINING AROMATIC COPOLYCARBONATE POLYBLENDS

The present invention pertains to a halogen-contain-ing, copolycarbonate blend having improved critical thickness and flammability properties comprising an aromatic copolycarbonate comprising the reaction product of an aromatic diphenol, an aromatic thiodiphenol and a carbonic acid derivative, such as phosgene or carbonyl bromide, blended with an effective amount of a halogen-containing compound In a preferred embodiment, the copolycarbonate blend also contains small amounts of a perfluoro sulfonic or carboxylic acid salt.

FLAME RETARDANT HALOGEN CONTAINING AROMATIC COPOLYCARBONATE POLYBLENDS

BIS(4-HYDROXYPHENYL THIO)BENZENES

FLAME RETARDANT POLYCARBONATE COMPOSITIONS WITH IMPROVED CRITICAL THICKNESS

POLYCARBONATES AND COPOLYCARBONATES HAVING IMPROVED ADHESIONTO METALS

The present invention provides polycarbonates and copolycarbonates with a higher glass transition temperature and hence also use temperature and impr oved metal adhesion, processes for their production and their use for produc ing blends, moldings and extrudates obtainable therefrom. The invention furt her provides novel bisphenols and their use for preparing (co)polycarbonates .

COPOLYCARBONATE HAVING A CRITICAL THICKNESS AMELIOREE AND PROCESS OF SA PREPARATION

POLYCARBONATE-RESISTANT COMBUSTOR HAVING A CRITICAL THICKNESS AND IMPROVED PROCESS FOR PREPARING THE SAME

POLYCARBONATE COMPOSITIONS HAVING IMPROVED THERMAL DIMENSIONAL STABILITY AND HIGH REFRACTIVE INDEX

Disclosed herein are methods and compositions of polycarbonate compositions having, among other characteristics, improved thermal dimensional stability, hydrolytic stability and high refractive index. The resulting polycarbonate copolymer composition, comprising a polycarbonate and a polysulfone, can be used in the manufacture of articles for optical applications. This abstract is intended as a scanning tool for purposes of searching in the particular art and is not intended to be limiting of the present invention.

POLYIMIDOSILOXANE ESTER CARBONATE COPOLYMERS

INHERENTLY RADIOPAQUE BIORESORBABLE POLYMERS FOR MULTIPLE USES

The invention is an inherently radiopaque, biocompatible, bioresorbable polymer, wherein said polymer comprises one or more recurring units of the Formula (I): (see formula I) wherein: X1 and X2 are each independently selected from the group consisting of Br and I; y1 and y2 are each independently zero or an integer in the range of 1 to 4, with the proviso that the sum of y1 and y2 is at least 1; R1 is (see formula II); R13 and R14 are each independently selected from the group consisting of - CH=CH-, -(CH2)C-, -(CHJ1)-, -CHJ2-CHJ3-, -CH=CH-(CHJ1)-, and -(CH2)c- (CHJ1)-; c is zero or an integer in the range of 1 to 8; J1 , J2 and J3 are each independently selected from the group consisting of H, Br, I, -NH-Q2 and -C(=Z8)-OQ3 ; Q1, Q2 and Q3 are each independently H or a non-crystallizable group comprising from 1 to 30 carbons; Z7 and Z8 are each independently O or S; A1 is selected from the group consisting of (see formula III), (see formula IV) and (see formula V) ; and R5 is selected ...

PROCESS FOR PREPARING HALOGEN-SUBSTITUTED AROMATIC POLYCARBONATES

A process is provided for making high molecular weight halo-substituted aromatic polycarbonates in a phase boundary reaction in which an o,o,o',o'-tetrahalogenobisphenol and phosgene are reacted in an aqueous medium at a pH of 7 to 9 in the presence of from 2 mol% to 20 mol% catalyst in a first step and the resulting product is polycondensed at a pH at least about 13 in a second step.

FLAME RETARDANT POLYCARBONATE HAVING IMPROVED CRITICAL THICKNESS

THERMOPLASTIC POLYCARBONATES RAMIFY AND THEIR PREPARATION

POLYCARBONATE AND METHOD FOR PREPARING THE SAME

COPOLYCARBONATE RESIN

NOVEL NONLINEAR OPTICAL ARYLHYDRAZONES AND NON LINEAR OPTICAL POLYMERS THEREOF

... 2132870 9321282 PCTABS00027 The present invention relates to nonlinear optical material comprising nonlinear optical dihydroxy arylhydrazones and to nonlinear optical materials comprising compositions containing at least one divalent moiety of nonlinear optical arylhydrazones. The present invention also relates to polyesters, polyestercarbonates, polycarbonates, polyethers, and poly(hydroxy ether) polymers, incorporating the dihydroxy arylhydrazone as recurring divalent moeities in the backbone of the polymer. The polymeric compositions of the present invention have high glass transition temperatures and exhibit stable nonlinear optical activity at high temperatures over a period of time.

SILOXANE-CONTAINING POLYMERS

Aromatic polycarbonate containing a special fluorine-containing bisphenol component

New aromatic polycarbonates contain, in their bisphenol moiety, at least in part bisphenols of the type 1,1-bishydroxyphenylhexafluorodichlorocyclopentane, 1,1-bishydroxyphenylheptafluoromonochlorocyclopentane or 1,1-bishydroxyphenyloctafluorocyclopentane.

Meta, para-bisphenol based polymer gas separation membranes

The invention relates to novel meta, parabisphenol based condensation uncross-linked polymer membranes and a method of separating gases using such membranes.

LIGHT-DIFFUSIBLE RESIN COMPOSITION

A resin composition having excellent light diffusion property and hue and a molded article thereof. The light-diffusing resin composition comprises 100 parts by weight of a resin component containing a polycarbonate (component A) and a polycarbonate-polydiorganosiloxane copolymer (component B) and 0.05 to 10.0 parts by weight of a light diffusing agent (component C), wherein the component B is a polycarbonate-polydiorganosiloxane copolymer in which polydiorganosiloxane domains having an average size of 0.5 to 40 nm are existent in a polycarbonate matrix.

IMPROVED FLAMEERETARDANT POLYCARBONATE BLEND

FIRE RETARDANT POLYCARBONATES WITH IMPROVED CRITICAL THICKNESS AND PROCESS FOR THEIR PREPARATION

PHENOL PRECURSORS

... 1357344 Aromatic carbonates and phosphoro- Chloridates IMPERIAL CHEMICAL INDUSTRIES Ltd 15 July 1971 [15 July 1970 (2)] 6 Aug 1970 23 Dec 1970] 34308/70 34309/70 37949/70 and 61171/70 Headings C2C and C2P [Also in Division C3] The invention comprises (a) phenol precursors of the formula wherein Q is a bivalent aromatic radical, Q1 is a univalent aromatic radical or the moiety of a bivalent aromatic radical, Z is -SO 2 , -SO-, -CO- or CH 2 , Y is -CO- or -POCl 2 and m is 1 when Y is -POCl 2 and 2 when Y is -CO-, but not including phenol precursors in which either (i) Q is a naphthylene radical and Q1 is the-moiety of a naphthylene radical, or (ii) Q is a phenylene radical and Q1 is the moiety of a phenylene radical; and (b) a process for the preparation of phenol precursors of Formula I including those in which (i) Q is a naphthylene radical and Q1 is the moiety of a naphthylene radical, or (ii) Q is a phenylene radical and Q1 is the moiety of ...

FLAME RETARDANT POLYCARBONATE COMPOSITIONS WITH IMPROVED CRITICAL THICKNESS

FLAME RETARDANT POLYCARBONATE COMPOSITIONS WITH IMPROVED CRITICAL THICKNESS Polycarbonates are provided having improved critical thickness values and flame retardant characteristics based upon an aromatic diol and a halogenated thiodiphenol represented by the structural formula < IMG > wherein X1 and X2 are halogen and "a" + "b" = 1 to 8; Y1 and Y2 are alkyl groups having 1 to 4 carbon atoms; and "c" + "d" = 0 to 7. By incorporating an effective amount of the aromatic halogenated thiodiphenol, based upon the total aromatic diol content, into the polymer the critical thickness and flame retardant characteristics of the polycarbonate are substantially improved, a process for the preparation of the monomer of said structural formula is likewise provided.

NARROW POLY-AND MONO-DISPERSED ANIONIC OLIGOMERS, AND THEIR USES, FORMULATIONS AND PROCESS

... 2127356 9314146 PCTABS00024 The narrow poly- or mono-dispersed oligomers of the present invention are polyureas, polycarbonates, polyesters or polyamides having a recurring unit of from 3 to 50. These oligomers are water-soluble, preferably have a rigid backbone, have recurring units coupled by carbonyl linking moieties which have anionic groups, display predominantly linear geometry such that regular spacing between anionic groups exists in an aqueous medium, and are pharmaceutically-acceptable. The narrow poly- or mono-dispersed oligomers are useful for the treatment and/or diagnosis of AIDS and/or ARC or HSV.

Polycarbonate-polyorganosiloxane copolymer, polycarbonate resin composition including same, and molded product thereof

A polycarbonate-polyorganosiloxane copolymer characterized by: including a polycarbonate block (A-1) comprising a prescribed repeating unit and a polyorganosiloxane block (A-2) including a prescribed repeating unit; and fulfilling formula (F1a). [In the formula, wM1 indicates the average amount of polyorganosiloxane blocks (A-2) contained in polycarbonate-polyorganosiloxane copolymers having a molecular weight, using polycarbonate as a reference, of 56,000-200,000, among the polycarbonate-polyorganosiloxane copolymers obtained by separating the polycarbonate-polyorganosiloxane copolymers using gel permeation chromatography].

NOVEL NONLINEAR OPTICAL ARYLHYDRAZONES AND NON LINEAR OPTICAL POLYMERS THEREOF

The present invention relates to nonlinear optical material comprising nonlinear optical dihydroxy arylhydrazones and to nonlinear optical materials comprising compositions containing at least one divalent moiety of nonlinear optical arylhydrazones. The present invention also relates to polyesters, polyestercarbonates, polycarbonates, polyethers, and poly(hydroxy ether) polymers, incorporating the dihydroxy arylhydrazone as recurring divalent moeities in the backbone of the polymer. The polymeric compositions of the present invention have high glass transition temperatures and exhibit stable nonlinear optical activity at high temperatures over a period of time.

Thermoplastic compositions with nonlinear optical activity

This invention provides thermoplastic polymeric materials comprising polycarbonate and polyestercarbonte resins and oriented polymeric compositions thereof which exhibit nonlinear optical properties.

POLYMER-LIKE FLUORESCENT MARKER

PROBLEM TO BE SOLVED: To obtain a polymer producible by polycondensation, etc., containing a compound emitting fluorescence in visible area of spectrum at a wavelength in a prescribed range as a comonomer and excellent in sublimation fastness and heat transfer fastness and suitable for marking, etc., of plastics. SOLUTION: This fluorescent marker is producible by polycondensation or polyaddition and emits fluorescence in a visible area of spectrum at 400-660nm wavelength and contains a compound of formula I [X is NH2, COOH, OH, NCO, NHR1, COCl (R1 is a 1-8C alkyl, etc.), etc., (n) is 1-6; A is a (substituted) aromatic or heterocyclic; D is a dialkylamino, an N-substituted heterocyclic ring, etc.], e.g. a compound of formula II as a comonomer. Furthermore, a plastics is preferably discriminated by adding 0.01-1000ppm of the polymer to the plastics during production or after production. COPYRIGHT: (C)1997,JPO ...

VERFAHREN ZUR ISOLIERUNG VON POLYCARBONATEN AUF BASIS VON 4,4'-DIHYDROXIDIPHENYLSULFONEN

INHERENTLY RADIOPAQUE BIORESORBABLE POLYMERS FOR MULTIPLE USES

POLYCARBONATE HAVING IMPROVED CRITICAL THICKNESS

... ??-????-?-??? PC-009-CIP TITLE POLYCARBONATE HAVING IMPROVED CRITICAL THICKNESS Polycarbonates are provided having improved critical thickness values based on an aromatic diphenol preferably bisphenol A and an aromatic diphenol thioether. By incorporating 2 up to 20 mole percent of the aromatic diphenol thioether based on the total diphenol content into the polymer, the critical thickness of the article molded from the polycarbonate is substantially improved. PC-009-CIP ...

PHENOL PERCURSORS

POLYCARBONATE HAVING IMPROVED CRITICAL THICKNESS

THERMOPLASTIC POLYCARBONATES RAMIFY AND THEIR PREPARATION

PROCESS FOR THE PREPARATION OF DISILOXANE

Novel polymers or monomers cvontain a thermally stable siloxane unit of formula(I); where Q is an opt. substd. aromatic gp.; Z is -O-, -S- , -SO-, -SO2-, or -OOC-; D is an opt. substd. hydrocarbylene; R1-6 are each indep. opt. substd. hydrocarbyl; and, y and z are each indep. 0-100. The polymers contg. (I) units are pref. polyamides, polyimides, polyesters, or polysulphones. The novel monomers are of formula F1-(I)-F1(II) (where F1 is a functional gp. attached directly to Q or bonded viz an intermediate gp.). Copyright 1997 KIPO ...

폴리카보네이트-폴리오르가노실록산 공중합체의 제조 방법

... 폴리카보네이트 올리고머와, 하기 일반식 (i) ∼ (iii) 으로 나타내는 폴리오르가노실록산 중 적어도 1 종을 유기 용매 중에서 반응시키는 공정 (Q) 를 갖고, 그 공정에 있어서, 상기 유기 용매와 폴리카보네이트 올리고머의 혼합 용액 1 L 중에 있어서의 폴리카보네이트 올리고머의 고형분 중량 x (g/L) 와, 얻어지는 폴리카보네이트-폴리오르가노실록산 공중합체 중의 폴리오르가노실록산의 농도 y (질량％) 와, 폴리오르가노실록산의 사슬 길이 n 이 특정 조건을 만족하는 것을 특징으로 하는, 폴리카보네이트-폴리오르가노실록산 공중합체의 제조 방법.

PRECURSORS OF PHENOLS

Polycarbonate-polyorganosiloxane copolymer, polycarbonate resin composition including same, and molded product thereof

A polycarbonate-polyorganosiloxane copolymer characterized by: including a polycarbonate block (A-1) comprising a prescribed repeating unit and a polyorganosiloxane block (A-2) including a prescribed repeating unit; and fulfilling formula (F1a). [In the formula, wM1 indicates the average amount of polyorganosiloxane blocks (A-2) contained in the polycarbonate-polyorganosiloxane copolymers having a molecular weight, using polycarbonate as a reference, of 56,000-200,000, among the polycarbonate-polyorganosiloxane copolymers obtained by separating the polycarbonate-polyorganosiloxane copolymers using gel permeation chromatography.].

Free-radical generating aromatic diols, polycarbonates containing thermal labile groups and their conversion to polycarbonate block copolymers

Bisphenols containing free-radical generating groups, such as bissilylpinacolate groups, are provided. These bisphenols can be used to make free-radical generating polycarbonate macroinitiators having thermally labile groups which can be heated with vinyl monomers, such as styrene to make polycarbonate block copolymers.

POLYIMIDOSILOXANE ESTER CARBONATE COPOLYMERS

BRANCHED, HIGH-MOLECULAR WEIGHT THERMOPLASTIC POLYCARBONATES

BIS(4-HYDROXYPHENYL THIO)BENZENES

The present invention relates to the novel monomers generically identified as bis(4-hydroxyphenyl thio)benzenes, to a process for their production and to their use in the preparation of polycarbonates, polyurethanes, polyesters, polysulfones and polyethers.

THERMALLY STABLE CARBONATE POLYMER

PROCESS FOR PREPARING HALOGEN?SUBSTITUTED AROMATIC POLYCARBONATES

NARROW POLY- AND MONO-DISPERSED ANIONIC OLIGOMERS, AND THEIR USES, FORMULATIONS AND PROCESS

The narrow poly- or mono-dispersed oligomers of the present invention are polyureas, polycarbonates, polyesters or polyamides having a recurring unit of from 3 to 50. These oligomers are water-soluble, preferably have a rigid backbone, have recurring units coupled by carbonyl linking moieties which have anionic groups, display predominantly linear geometry such that regular spacing between anionic groups exists in an aqueous medium, and are pharmaceutically-acceptable. The narrow poly- or mono-dispersed oligomers are useful for the treatment and/or diagnosis of AIDS and/or ARC or HSV.

Polycarbonate copolymer, coating liquid using same, and electrophotographic photosensitive body

A polycarbonate copolymer includes a repeating unit represented by a formula (1) below and a molar copolymer composition represented by Ar 2 /(Ar 1 +Ar 2 ) in a range of 25 mol % to 50 mol %. In the formula (1): Ar 1 and Ar 2 represent a divalent aromatic group; a chain end is terminated by a monovalent aromatic group or a monovalent fluorine-containing aliphatic group; and n represents an average repeating number of an Ar 1 block and is a numeral of 1.0 to 3.0, provided that Ar 1 and Ar 2 are not the same.

Polyphosphonate and copolyphosphonate additive mixtures

Disclosed are polymer compositions including polycarbonates, polyphosphonates, copoly(phosphonate carbonate)s, and organic salts and/or silicone containing compounds that exhibit a superior combination of properties compared to prior art.

DIOL, AND POLYCARBONATE RESIN OR POLYESTER RESIN

A diol from which a resin material having high processability and a high refractive index can be manufactured, a polycarbonate resin and a polyester resin which is a polymer of the diol, and a molded article and an optical element formed of the polymer. The diol is represented by the general formula (1) shown below; the polycarbonate resin and the polyester resin are polymers thereof; and the molded article and the optical element are formed of the polymers, 3. The polycarbonate resin according to claim 2 , wherein the polymer has a molar fraction of the repeating unit represented by the general formula (2) of 10% or more.7. A molded article comprising a polycarbonate resin according to .8. An optical element comprising a polycarbonate resin according to .9. A molded article comprising a polycarbonate resin according to .10. A molded article comprising a polyester resin according to .11. An optical element comprising a polycarbonate resin according to .12. An optical element comprising a polyester resin according to . This application is a divisional of U.S. application Ser. No. 13/146,761, which was the National Stage of International Application No. PCT/JP2010/054467, filed Mar. 10, 2010, which claims the benefit of Japanese Patent Application No. 2009-060271, filed Mar. 12, 2009, and Japanese Patent Application No. 2009-060272, filed Mar. 12, 2009. All prior applications are hereby incorporated by reference herein in their entirety.The present invention relates to a novel diol having one of a naphthalene structure and a fluorene structure, and a polymer formed from the diol, particularly, a polycarbonate resin, a polyester resin, and further, a molded article and an optical element formed of the polymer.Since resin materials having a high refractive index have higher processability than conventional glass materials, extensive studies are made to apply them to various applications such as eyeglass lenses, lenses for cameras and the like, lenses for optical disks, ...

PRODUCTION METHOD OF POLYCARBONATE RESIN

The present invention is a method for producing a polycarbonate resin, comprising performing polycondensation through a transesterification reaction by using a catalyst and using a dihydroxy compound and a carbonic acid diester as raw material monomers, and feeding the produced polycarbonate resin to an extruder, wherein the dihydroxy compound contains at least a dihydroxy compound having a moiety represented by formula (1) in a part of the structure, the dihydroxy compound having a moiety represented by formula (1) contains a compound having a cyclic ether structure, and the temperature at the time of feeding the polycarbonate resin to the extruder is from 180° C. to less than 250° C., with the proviso excluding the case where the moiety represented by formula (1) is a part of —CH—O—H. 1. A method for producing a polycarbonate resin , comprising performing polycondensation through a transesterification reaction by using a catalyst and using a dihydroxy compound and a carbonic acid diester as raw material monomers , and feeding the produced polycarbonate resin to an extruder , whereinsaid dihydroxy compound contains a dihydroxy compound having a moiety represented by the following formula (1) in a part of the structure,the dihydroxy compound having a moiety represented by the following formula (1) contains a compound having a cyclic ether structure, and {'br': None, 'sub': '2', '\ue8a0CH—O\ue8a0\u2003\u2003(1)'}, 'the temperature at the time of feeding said polycarbonate resin to said extruder is from 180° C. to less than 250° C.{'sub': '2', 'with the proviso excluding the case where the moiety represented by formula (1) is a part of —CH—O—H.'}2. The method for producing a polycarbonate resin according to claim 1 , wherein the glass transition temperature of the polycarbonate resin obtained via said extruder is from 80° C. to less than 145° C.3. The method for producing a polycarbonate resin according to claim 1 , wherein the barrel constituting said extruder has a ...

Poly(ether sulfone)s and poly(ether amide sulfone)s and methods of their preparation

Poly(ether sulfones) (PES) and poly(ether amide sulfones) (PEAS) were prepared from post-consumer polycarbonates and polyesters, respectively, using a single vessel in batch mode (all reactants present when heating was initiated). The depolymerization of the initial polymer occurs concurrently with step growth polymerization to form a product polymer having a number average molecular weight of at least 5000.

Bisphenol polyether oligomers, methods of manufacture, and polycarbonates made therefrom

A bisphenol polyether oligomer composition comprising greater than 90 wt. % of an oligomer of the formula wherein R a , R b , and R c are each independently a C 1-12 alkyl, C 1-12 alkoxy, or C 1-12 alkylarylene, each X a is independently a single bond, —O—, —S—, —S(O)—, —S(O) 2 —, —C(O)—, or a C 1-18 organic group, G is H or p, q, and t are each independently integers of 0 to 4, n is 1 to 10; and wherein the bisphenol polyether oligomer composition comprises: a total halide content of less than 1000 ppm, less than 1000 ppm of —CH 2 OH groups, less than 5 wt. % cyclic oligomers, and less than 100 ppm of a bisphenol of the formula wherein R a , R b , X a , p and q are the same as in the oligomer.

RING-OPENING POLYMERIZATIONS USING A FLOW REACTOR

Techniques regarding the synthesis of one or more polymers through one or more ring-opening polymerizations conducted within a flow reactor and facilitated by one or more anionic catalysts are provided. For example, one or more embodiments can comprise a method, which can comprise functionalizing, via a post-polymerization reaction within a flow reactor, a chemical compound by covalently bonding a trimethylsilyl protected thiol to a pendent functional group of the chemical compound in a presence of a catalyst. The pendent functional group can comprise a perfluoroaryl group and a methylene group. 1. A method , comprising:functionalizing, via a post-polymerization reaction within a flow reactor, a chemical compound by covalently bonding a trimethylsilyl protected thiol to a pendent functional group of the chemical compound in a presence of a catalyst, the pendent functional group comprising a perfluoroaryl group and a methylene group.2. The method of claim 1 , wherein the catalyst is a salt byproduct of quenching a polymerization reaction that forms the chemical compound claim 1 , and wherein the chemical compound is a polycarbonate.3. The method of claim 1 , further comprising:quenching a ring-opening polymerization reaction that forms the chemical compound, wherein the chemical compound is a polycarbonate, wherein the quenching comprises forming a salt byproduct, and wherein the salt byproduct is the catalyst.4. The method of claim 3 , wherein the ring-opening polymerization reaction is performed within the flow reactor and comprises polymerizing a cyclic carbonate monomer in the presence of an anionic organocatalyst.5. The method of claim 4 , wherein the ring-opening polymerization reaction further comprises switching an active catalyst from the anionic organocatalyst to a second anionic organocatalyst by a proton transfer with a neutral chemical compound claim 4 , wherein the proton transfer neutralizes the anionic organocatalyst and ionizes the neutral chemical ...

POLYCARBONATE-POLYORGANOSILOXANE COPOLYMER, POLYCARBONATE RESIN COMPOSITION INCLUDING SAME, AND MOLDED PRODUCT THEREOF

Provided is a polycarbonate-polyorganosiloxane copolymer including polycarbonate blocks (A-1) each formed of a specific repeating unit and polyorganosiloxane blocks (A-2) each containing a specific repeating unit, wherein the polycarbonate-polyorganosiloxane copolymer satisfies the following expression (F1a): 113-. (canceled)1519-. (canceled)21. The polycarbonate-based resin composition according to claim 20 , wherein a mass ratio “(A)/(B)” of the polycarbonate-polyorganosiloxane copolymer (A) to the aromatic polycarbonate-based resin (B) is from 0.1/99.9 to 99.9/0.1.22. The polycarbonate-based resin composition according to claim 20 , wherein a content of the polyorganosiloxane blocks (A-2) with respect to a total of the polycarbonate-polyorganosiloxane copolymer (A) and the aromatic polycarbonate-based resin (B) is from 0.1 mass % or more to 10 mass % or less.23. The polycarbonate-based resin composition according to claim 20 , wherein a polycarbonate-based resin formed of the polycarbonate-polyorganosiloxane copolymer (A) and the aromatic polycarbonate-based resin (B) has a viscosity-average molecular weight (Mv) of from 9 claim 20 ,000 or more to 50 claim 20 ,000 or less.24. The polycarbonate-based resin composition according to claim 20 , wherein the styrene-based resin (C) has constituent units derived from acrylonitrile and styrene.25. The polycarbonate-based resin composition according to claim 20 , wherein the styrene-based resin (C) comprises at least one selected from an acrylonitrile-butadiene-styrene copolymer and an acrylonitrile-styrene copolymer.26. A molded article claim 20 , which is obtained by molding the polycarbonate-based resin composition of .27. The molded article according to claim 26 , wherein the molded article comprises a casing for electrical and electronic equipment.28. The molded article according to claim 26 , wherein the molded article comprises a part for an automobile and a building material. The present invention relates to a ...

POLYCARBONATE-POLYORGANOSILOXANE COPOLYMER, POLYCARBONATE RESIN COMPOSITION INCLUDING SAME, AND MOLDED PRODUCT THEREOF

Provided is a polycarbonate-polyorganosiloxane copolymer including polycarbonate blocks (A-1) each formed of a specific repeating unit and polyorganosiloxane blocks (A-2) each containing a specific repeating unit, wherein the polycarbonate-polyorganosiloxane copolymer satisfies the following expression (F1a): 113-. (canceled)1519-. (canceled)21. The polycarbonate-based resin composition according to claim 20 , wherein a mass ratio “(A)/(B)” of the polycarbonate-polyorganosiloxane copolymer (A) to the aromatic polycarbonate-based resin (B) is from 0.1/99.9 to 99.9/0.1.22. The polycarbonate-based resin composition according to claim 20 , wherein a content of the polyorganosiloxane blocks (A-2) with respect to a total of the polycarbonate-polyorganosiloxane copolymer (A) and the aromatic polycarbonate-based resin (B) is from 0.1 mass % or more to 10 mass % or less.23. The polycarbonate-based resin composition according to claim 20 , wherein a polycarbonate-based resin formed of the polycarbonate-polyorganosiloxane copolymer (A) and the aromatic polycarbonate-based resin (B) has a viscosity-average molecular weight (Mv) of from 9 claim 20 ,000 or more to 50 claim 20 ,000 or less.24. The polycarbonate-based resin composition according to claim 20 , wherein the inorganic filler (C) comprises at least one selected from titanium oxide claim 20 , talc claim 20 , and glass fibers.25. The polycarbonate-based resin composition according to claim 20 , wherein the inorganic filler (C) comprises titanium oxide claim 20 , and a ratio of the titanium oxide with respect to 100 parts by mass of a polycarbonate-based resin formed of the polycarbonate-polyorganosiloxane copolymer (A) and the aromatic polycarbonate-based resin (B) is from 0.5 part by mass or more to 5 parts by mass or less.26. The polycarbonate-based resin composition according to claim 20 , wherein the inorganic filler (C) comprises talc claim 20 , and a ratio of the talc in 100 mass % of a total amount of a ...

COPOLYCARBONATE AND COMPOSITION COMPRISING THE SAME

The present disclosure relates to a copolycarbonate having improved impact strength at low temperature and YI (Yellow Index) simultaneously, and a composition including the same. 1. A copolycarbonate , comprising:an aromatic polycarbonate-based first repeating unit,an aromatic polycarbonate-based second repeating unit having at least one siloxane bond, and{'sub': '1-15', 'an aromatic polycarbonate-based third repeating unit having at least one siloxane bond containing fluoro-substituted Calkyl,'}wherein the copolycarbonate has YI (Yellow Index) of 1 to 3.9 in accordance with ASTM D1925, andthe copolycarbonate has impact strength at low temperature of 700 to 1000 J/m, measured at −30° C. in accordance with ASTM D256 (⅛ inch, Notched Izod).2. The copolycarbonate according to claim 1 ,wherein the copolycarbonate has impact strength at room temperature of 800 to 1100 J/m, measured at 23° C. in accordance with ASTM D256 (⅛ inch, Notched Izod).3. The copolycarbonate according to claim 1 ,wherein a weight average molecular weight is 1,000 to 100,000 g/mol.4. The copolycarbonate according to claim 1 ,wherein a weight ratio of the second repeating unit and the third repeating unit is 1:99 to 99:1.8. The copolycarbonate according to claim 6 ,wherein n is an integer of 10 to 50.10. The copolycarbonate according to claim 9 ,{'sub': 7', '2', 'p', 'q', 'r, 'wherein Ris —(CH)CHF,'}in the chemical formula, p is an integer of 0 to 10,q and r are each independently an integer of 0 to 3, and q+r is 3.12. The copolycarbonate according to claim 9 ,wherein the sum of m and l is an integer of 30 to 70.13. A polycarbonate composition comprising the copolycarbonate according to claim 1 , and a polycarbonate.14. The polycarbonate composition according to claim 13 ,wherein a polysiloxane structure is not introduced in a main chain of the polycarbonate. This application claims the benefit of Korean Patent Application No. 10-2016-0136729 filed on Oct. 20, 2016 with the Korean Intellectual ...

SULFUR-STABILIZED THERMOPLASTIC COMPOSITIONS, METHODS OF MAKING, AND ARTICLES FORMED THEREFROM

A copolycarbonate included 2-95 mole percent of high heat carbonate units derived from a high heat aromatic dihydroxy monomer, wherein a polycarbonate homopolymer derived from the high heat aromatic dihydroxy monomer has a glass transition temperature of 175-330 C determined by differential scanning calorimetry as per ASTM D3418 with a 20 C/min heating rate, and 5-98 mole percent of a low heat carbonate units derived from a low heat aromatic monomer, wherein a polycarbonate homopolymer derived from the low heat aromatic monomer has a glass transition temperature of less than 170 C determined by differential scanning calorimetry as per ASTM D3418 with a 20 C/min heating rate, each based on the sum of the moles of the carbonate units; and a sulfur-containing stabilizer compound, wherein the sulfur-containing stabilizer compound is a thioether carboxy compound, a thioether dicarboxy compound, a thioether ester compound, or a combination thereof, wherein the sulfur-containing stabilizer compound is present in an amount effective to provide 5-50 parts per million by weight of added sulfur, based on the total parts by weight of the copolycarbonate, wherein a source of the added sulfur is the sulfur-containing stabilizer. 1. A thermoplastic composition comprising: 2-95 mole percent of high heat carbonate units derived from a high heat aromatic dihydroxy monomer, wherein a polycarbonate homopolymer derived from the high heat aromatic dihydroxy monomer has a glass transition temperature of 175-330° C. determined by differential scanning calorimetry as per ASTM D3418 with a 20° C./min heating rate, and', '5-98 mole percent of a low heat carbonate units derived from a low heat aromatic monomer, wherein a polycarbonate homopolymer derived from the low heat aromatic monomer has a glass transition temperature of less than 170° C. determined by differential scanning calorimetry as per ASTM D3418 with a 20° C./min heating rate, each based on the sum of the moles of the carbonate ...

Polycarbonate and Method of Preparing the Same

A polycarbonate resin of the present invention is characterized by comprising repeating units represented by Formula 1, Formula 2, Formula 3 and Formula 4, respectively.

ENGINEERING MINERALS FOR USE AS POLYCARBONATE FILLERS, AND METHODS OF USING THE SAME TO REINFORCE POLYCARBONATES

A reinforced resin composition may include a polycarbonate, a functionalizing agent, and an inorganic filler that has been functionalized with the functionalizing agent, the functionalized inorganic filler being present in an amount ranging from 1 to 25 percent by weight of the resin composition. The reinforced resin may exhibit a melt flow index of 25 or less, when measured at a load of 1.2 kg, after allowing the resin to remain at a temperature of 300° C. for 10 minutes. A method of reducing thermal degradation of a reinforced polycarbonate material may include introducing into said polycarbonate material at least one inorganic filler functionalized with a functionalizing agent, such that the reinforced resin exhibits a melt flow index of 25 or less, when measured at a load of 1.2 kg, after allowing the resin to remain at a temperature of 300° C. for 10 minutes. 1. A reinforced resin composition comprising:a polycarbonate in an amount ranging from 75 to 99 percent by weight of the resin composition;a functionalizing agent; andan inorganic filler functionalized with the functionalizing agent, the functionalized inorganic filler being present in an amount ranging from 1 to 25 percent by weight of the resin composition,wherein the reinforced resin exhibits a melt flow index of 25 or less, when measured at a load of 1.2 kg, after allowing the resin to remain at a temperature of 300° C. for 10 minutes.2. The reinforced resin composition of claim 1 , wherein the functionalizing agent comprises at least one organo-modified silane chosen from a methacrylate-silane (MEMO-silane) claim 1 , a vinyl silane claim 1 , a phenyl silane claim 1 , an epoxy silane claim 1 , and combinations thereof.36-. (canceled)7. The reinforced resin composition of claim 2 , wherein the functionalizing agent further comprises at least one of modified styrene acrylic polymer claim 2 , monomeric carbodimide claim 2 , and polymeric carbodimide.8. The reinforced resin composition of claim 1 , wherein ...

INHERENTLY HEALING POLYCARBONATE RESINS

The disclosure concerns healable polycarbonate resins comprising at least about 5 mol % of disulfide units, articles comprising the healable polycarbonate resin, and methods of activating the healable polycarbonate resin by exposing the healable polycarbonate resin to heat or radiation. 1. A healable polycarbonate resin comprising at least about 5 mol % to about 50 mol % of disulfide units.2. The healable polycarbonate resin of claim 1 , wherein said disulfide units comprise aromatic or aliphatic disulfide units.3. The healable polycarbonate resin of claim 1 , comprising about 10 mol % to about 50 mol % of said disulfide units.4. The healable polycarbonate resin of claim 1 , wherein said disulfide units comprise at least one hydroxy group.5. The healable polycarbonate resin of claim 1 , wherein said disulfide units comprise disulfide co-monomers.6. The healable polycarbonate resin of claim 1 , wherein said polycarbonate resin comprises disulfide end caps.7. The healable polycarbonate resin of claim 1 , wherein said polycarbonate resin comprises disulfide cross-linkers.9. The healable polycarbonate resin of claim 1 , wherein said polycarbonate resin is synthesized in presence of a carbonate source such as bis(methyl salicylate)carbonate diphenyl claim 1 , or phosgene.12. The healable polycarbonate resin of claim 1 , which heals in the absence of pressure claim 1 , electricity claim 1 , a healing agent claim 1 , a catalyst claim 1 , or combinations thereof.13. The healable polycarbonate resin of claim 1 , which heals in the presence of heat or radiation or a combination of thereof.14. The healable polycarbonate resin of claim 1 , which is capable of healing multiple events of damage.15. The healable polycarbonate resin of which lacks carbon nanotubes claim 1 , self-healing agents claim 1 , or a combination thereof.16. A method of preparing a healable polycarbonate resin of claim 1 , said method comprising melt or interfacial polymerizing an aromatic disulfide ...

SYNTHESIS OF A PHOSPHOROUS CONTAINING MONOMER AND THE INCORPORATION IN POLYCARBONATE BY INTERFACIAL POLYMERIZATION THEREOF

A phosphinate copolycarbonate having units of the formula (1) wherein each Ris independently a halogen atom, Calkyl, Chaloalkyl, Calkoxy, Caryl, or Chaloaryl, each Xis as defined herein, Rand Rare independently a halogen atom, Calkyl, Chaloalkyl, Calkoxy, Chaloalkoxy, Calkenyl, or Ccycloalkyl, each Ris a substituted or unsubstituted Caryl, Calkyl, Chaloalkyl, Calkoxy, Chaloalkoxy, Calkenyl, Ccycloalkyl, Caryl, or Chaloaryl, Arand Arare each independently the same or different Caryl, a, e, and f are each independently 0 to 4, or 0 to 2 or 0, c is 0 or 1, and x and y represent the molar ratio of each unit in the phosphinate copolycarbonate, and are 0.5:99.5 to 99.5:0.5, or 1:99 to 99:1, or 10:90 to 90:10, or 20:80 to 80:20. 5. The phosphinate copolycarbonate of claim 1 , wherein the phosphinate copolycarbonate has one or more ofa weight average molecular weight of 10,000 to 40,000 grams per mole;a UL94 rating of V0 at a thickness of 0.8 millimeters; andan absorbance at 400 nanometers of less than 0.5 at a concentration of 500 milligrams per milliliter in dichloromethane and a path length of 10 cm.9. The process of claim 6 , wherein the copolymerizing is an interfacial process conducted in the presence of a catalyst.10. The process of claim 9 , wherein a caustic solution of the phosphinate bisphenol is added to the aromatic dihydroxy compound after a portion of the carbonate precursor is contacted with the aromatic dihydroxy compound.11. The process of claim 6 , wherein the copolymerizing is a melt process conducted in the presence of a catalyst.15. (canceled)16. A copolycarbonate composition claim 6 , comprising{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'the phosphinate copolycarbonate of ;'}optionally another polymer that this not the same as the copolycarbonate; andoptionally an additive composition.17. An article comprising the copolycarbonate composition of .18. The article of claim 17 , having a wall thickness of less than 4.0 millimeters.19. The article ...

Polycarbonate-Polysiloxane Copolymer, and Method for Preparing Same

The present invention relates to a polycarbonate-polysiloxane copolymer containing a polysiloxane unit. The polycarbonate-polysiloxane copolymer of the present invention includes an aliphatic terminal having a specific carbon number, thereby having excellent impact properties at low temperature, and high transparency.

SELF-HEALING GRAFT MATERIAL AND METHOD OF USE THEREOF

The present disclosure relates to a graft material including a self-healing polymer layer and to implantable medical devices including such a graft material. The invention also relates to methods of using and manufacturing such graft materials and devices. In one embodiment, the implantable medical device is a stent graft. 1. A stent graft comprising:an expandable stent having a luminal and an abluminal surface; anda graft disposed on at least one of the luminal and the abluminal surface;wherein the graft comprises a first layer comprising a self-healing polymer material.2. The stent-graft of claim 1 , wherein the self-healing polymer is a cross-linked co-polymer of a diamine and acrylic acid having a mixture of reversible hydrogen bonds and permanent covalent crosslinks.3. The stent-graft of claim 2 , wherein the diamine is 1 claim 2 ,12 diaminododecane.4. The stent-graft of claim 1 , wherein the self-healing polymer is a thermoplastic polyurethane comprising a hard segment component claim 1 , a soft segment component and a chain extender component.5. The stent-graft of claim 4 , wherein the hard segment component comprises a polymerized diisocyanate unit claim 4 , wherein the diisocyanate is selected from the group consisting of isophorone diisocyanate claim 4 , 4 claim 4 ,4′-methylenebis(cyclohexyl isocyanate) claim 4 , 4 claim 4 ,4′ methylenebis(phenyl isocyanate) and hexamethylene diisocyanate.6. The stent-graft of claim 4 , wherein the soft segment component comprises polymerized polytetramethylene ether glycol.7. The stent-graft of claim 4 , wherein the chain extender component comprises polymerized bis(4-hydroxyphenyl) disulphide.8. The stent graft of claim 1 , wherein the graft further comprises a second layer comprising a polymer selected from the group consisting of polytetrafluoroethylene claim 1 , electro-spun polytetrafluoroethylene claim 1 , expanded polytetrafluoroethylene claim 1 , polyethylene terephthalate claim 1 , polyester claim 1 , ...

Biodegradable Amphiphilic Polymer, Polymer Vesicle Prepared Therefrom and Use in Preparing Target Therapeutic Medicine for Lung Cancer

Disclosed in the present disclosure is a biodegradable amphiphilic polymer containing disulfide in the side chain, a self-crosslinked polymeric vesicle thereof and an application in the targeted therapy of lung cancer. The polymer is obtained by an activity-controllable ring-opening polymerization based on a cyclic carbonate monomer containing a functional group of dithiolane ring, which has a controllable molecular weight and a narrow molecular weight distribution, and does not require processes of protection and deprotection; the polymer obtained by the ring-opening polymerization of the cyclic carbonate monomer of the present disclosure has biodegradability and can be used to control the drug release system, the prepared lung cancer-targeted reduction-sensitive reversibly-crosslinked polymeric vesicle as a nanomedicine carrier supports stable long circulation in vivo. However, it is highly enriched in lung cancer tissues, enter cells efficiently, and rapidly decrosslinks in the cells to release drugs, so as to kill cancer cells with high potency and specificity and inhibit the growth of tumor effectively without causing toxic and side effects. 3. A tumor-specific targeted biodegradable amphiphilic polymer claim 1 , wherein the tumor-specific targeted biodegradable amphiphilic polymer is prepared by bonding the biodegradable amphiphilic polymer according to to a targeting molecule.4. The tumor-specific targeted biodegradable amphiphilic polymer according to claim 11 , wherein the targeting molecule is cRGD claim 11 , cNGQ or cc-9.5. A polymeric vesicle claim 11 , wherein a method for preparing the polymeric vesicle is one of the following preparation methods:{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, '(1) prepared by the biodegradable amphiphilic polymer according to ;'}{'claim-ref': {'@idref': 'CLM-00003', 'claim 3'}, '(2) prepared by the tumor-specific targeted biodegradable amphiphilic polymer according to ;'}{'claim-ref': [{'@idref': 'CLM-00001', 'claim ...

POLYCARBONATE RESIN COMPOSITION OR COPOLYMER, AND OPTICAL FILM

A polycarbonate resin composition or a copolymer, comprising, as main repeating units, a carbonate unit (a-1) having a fluorene ring in a side chain, a carbonate unit (a-2) represented by the following formula (a-2):

Branched Polycarbonate and Method for Preparing the Same

A method for preparing branched polycarbonate includes: preparing a first raw material by mixing and reacting an aromatic dihydroxy compound, diaryl carbonate, and about 60 ppb (weight) to about 140 ppb (weight) of a catalyst with respect to the amount of aromatic dihydroxy compound; preparing a second raw material by mixing and reacting an aromatic dihydroxy compound, diaryl carbonate, a phosphorus branching agent, and about 350 ppb (weight) to about 450 ppb (weight) of the catalyst with respect to the amount of aromatic dihydroxy compound; and melt-polymerizing about 100 parts by weight of the first raw material and about 1 part by weight to about 20 parts by weight of the second raw material. The branched polycarbonate prepared by the method can exhibit excellent properties in terms of heat resistance, color stability and/or fluidity due to small catalyst amount. 1. A method for preparing branched polycarbonate comprising:preparing a first raw material by mixing and reacting an aromatic dihydroxy compound, diaryl carbonate, and about 60 ppb (weight) to about 140 ppb (weight) of a catalyst with respect to the amount of aromatic dihydroxy compound;preparing a second raw material by mixing and reacting an aromatic dihydroxy compound, diaryl carbonate, a phosphorus branching agent, and about 350 ppb (weight) to about 450 ppb (weight) of the catalyst with respect to the amount of aromatic dihydroxy compound; andmelt-polymerizing about 100 parts by weight of the first raw material and about 1 part by weight to about 20 parts by weight of the second raw material.4. The method according to claim 1 , wherein in each of the first and second raw materials claim 1 , the diaryl carbonate is present in an amount of about 100 parts by mole to about 120 parts by mole based on about 100 parts by mole of the aromatic dihydroxy compound claim 1 , and in the second raw material claim 1 , the phosphorus branching agent is present in an amount of about 0.01 parts by mole to about 10 ...

METHOD FOR PRODUCING POLYCARBONATE-POLYORGANOSILOXANE COPOLYMER

Provided is a method of producing a polycarbonate-polyorganosiloxane copolymer, including a step (a) of producing a polycarbonate oligomer with an alkaline aqueous solution of a dihydric phenol, phosgene, and an organic solvent, the method further including a step of setting a content of a polycarbonate-polyorganosiloxane copolymer in the organic solvent to be introduced into the step (a) to less than 850 ppm by mass. 1. A method of producing a polycarbonate-polyorganosiloxane copolymer , comprising:a step (a) of producing a polycarbonate oligomer with an alkaline aqueous solution of a dihydric phenol, phosgene, and an organic solvent, andthe method further comprising a step of setting a content of a polycarbonate-polyorganosiloxane copolymer in the organic solvent to be introduced into the step (a) to less than 850 ppm by mass,{'sup': 2', '3', '2', '3, 'wherein the organic solvent to be introduced into the step (a) is obtained by treating part or a total amount thereof with a demister, the demister has a structure that a mist-separating zone formed of a wire mesh is arranged therewith, and a wire mesh having a surface area of from about 200 m/mto about 400 m/m.'}2. The method of producing a polycarbonate-polyorganosiloxane copolymer according to claim 1 , further comprising:a step (b) of causing the polycarbonate oligomer obtained in the step (a), the alkaline aqueous solution of the dihydric phenol, and a polyorganosiloxane to react with each other to provide a polycarbonate-polyorganosiloxane copolymer;a step (c) of continuously or intermittently discharging a solution containing the polycarbonate-polyorganosiloxane copolymer from a reactor of the step (b), separating the discharged solution into an aqueous phase and an organic solvent phase, washing the separated organic solvent phase, and then further separating the washed phase into an aqueous phase and an organic solvent phase; anda step (d) of concentrating and drying the organic solvent phase containing the ...

AROMATIC POLYCARBONATE RESIN COMPOSITION AND AROMATIC POLYCARBONATE RESIN MANUFACTURING METHOD

Provided is a method of manufacturing an aromatic polycarbonate resin composition with high fluidity, particularly during low shear, and a good color. An aromatic polycarbonate resin composition including: an aromatic polycarbonate resin that has a structural unit expressed by general formula (1); a aliphatic cyclic carbonate that is expressed by general formula (2) and is included at a ratio of 10 ppm-10,000 ppm; an aromatic cyclic carbonate that is expressed by general formula (3); and at least one compound selected from the group consisting of compounds expressed by general formulas (4)-(6), wherein the total content of the aromatic cyclic carbonate and the compound(s) expressed by general formula(s) (4)-(6) is 0.1 mass %-2.0 mass % by bisphenol A-converted value. 1. A process for producing an aromatic polycarbonate resin comprising:reacting an aromatic polycarbonate prepolymer and a dialcohol compound in the presence of a transesterification catalyst to increase a molecular weight to obtain a crude aromatic polycarbonate resin containing an aliphatic cyclic carbonate; andfeeding the crude aromatic polycarbonate resin to a kneading extruder equipped with a vent port, a water injection port and a screw, and then, injecting water and carrying out devolatilization at a discharge resin temperature of not lower than 200° C. and not higher than 310° C., to remove at least a part of the aliphatic cyclic carbonate.2. The process according to claim 1 , wherein the aliphatic cyclic carbonate is present in the crude aromatic polycarbonate resin in an amount of 1 to 10 claim 1 ,000 ppm in mass basis.3. The process according to claim 1 , wherein the aliphatic cyclic carbonate is present in the aromatic polycarbonate resin in an amount of less than 20 ppm in mass basis.4. The process according to claim 1 , wherein the water is injected in an amount of at least 0.05 part by mass to 3.0 parts by mass based on 100 parts by mass of the crude aromatic polycarbonate resin.5. The ...

COPOLYCARBONATE AND COMPOSITION COMPRISING THE SAME

The present disclosure relates to a copolycarbonate having improved flowability while maintaining excellent impact strength at room temperature and low temperature, and a composition including the same. 4. The copolycarbonate according to claim 3 ,{'sub': '5', 'wherein Ris methyl.'}5. The copolycarbonate according to claim 1 ,wherein n is an integer of 10 to 50.7. The copolycarbonate according to claim 6 ,{'sub': '6', 'wherein Ris methyl.'}8. The copolycarbonate according to claim 1 ,wherein m is an integer of 30 to 70.10. The copolycarbonate according to claim 1 ,wherein a weight average molecular weight is 1,000 to 100,000 g/mol.11. A polycarbonate composition comprising the copolycarbonate according to claim 1 , and a polycarbonate.12. The polycarbonate composition according to claim 11 ,wherein a polysiloxane structure is not introduced in a main chain of the polycarbonate. This application claims the benefit of Korean Patent Application No. 10-2016-0136730 filed on Oct. 20, 2016 with the Korean Intellectual Property Office, the disclosure of which is incorporated herein by reference in its entirety.The present disclosure relates to a copolycarbonate having improved flowability while maintaining excellent impact strength at room temperature and low temperature, and a composition including the same.Polycarbonate resins are prepared by condensation-polymerization of an aromatic diol such as bisphenol A with a carbonate precursor such as phosgene, and have excellent impact strength, dimensional stability, heat resistance and transparency. Thus, the polycarbonate resins have application in a wide range of uses, such as exterior materials of electrical and electronic products, automobile parts, building materials, and optical components.Recently, in order to apply these polycarbonate resins to more various fields, many studies have been made to obtain desired physical properties by copolymerizing two or more aromatic diol compounds having different structures from ...

POLYCARBONATE COMPOSITIONS HAVING IMPROVED THERMAL DIMENSIONAL STABILITY AND HIGH REFRACTIVE INDEX

Disclosed herein are methods and compositions of polycarbonate compositions having, among other characteristics, improved thermal dimensional stability, hydrolytic stability and high refractive index. The resulting polycarbonate copolymer composition, comprising a polycarbonate and a polysulfone, can be used in the manufacture of articles for optical applications. This abstract is intended as a scanning tool for purposes of searching in the particular art and is not intended to be limiting of the present invention. 2. The composition of claim 1 , wherein formula (i) comprises 4 claim 1 ,4′-dichlorodiphenylsulphone.3. The composition of claim 1 , wherein formula (Ii) comprises 4 claim 1 ,4′-thiodiphenol.5. The composition of claim 1 , further comprising monomeric units (c) comprising a carbonate unit derived from a second aromatic dihydroxy compound.6. The composition of claim 1 , wherein the monomeric units (a) further comprise a carbonate unit derived from a second aromatic dihydroxy compound.7. The composition of claim 1 , wherein the carbonate unit is derived from bisphenol A claim 1 , PPPBP claim 1 , bisphenol acetophenone or a combination thereof.8. The composition of claim 5 , wherein the carbonate unit of (a) comprises PPPBP claim 5 , and wherein the carbonate unit of (c) comprises bisphenol A.9. The composition of claim 8 , wherein the monomeric units (c) further comprises a ester unit derived from an aromatic diol claim 8 , a C6-C44 aliphatic dicarboxylic acid claim 8 , or a derivative thereof.10. The composition of claim 9 , wherein the monomeric units (c) comprises a polyester-carbonate.11. The composition of claim 10 , wherein the ester unit is derived from a aliphatic dicarboxylic acid.13. The composition of claim 9 , wherein the aliphatic dicarboxylic acid comprises C36 aliphatic dicarboxylic acid claim 9 , C44 aliphatic dicarboxylic acid claim 9 , or a combination thereof.14. The composition of claim 12 , wherein the C36 aliphatic dicarboxylic acid ...

Polycarbonate Resin and Preparation Method Therefor

A polycarbonate resin of the present invention comprises: a repeat unit represented by chemical formula 1 in the specification; a repeat unit represented by chemical formula 2; and a repeat unit represented by chemical formula 3. The polycarbonate resin has excellent flame retardancy, thermal resistance, transparency, impact resistance, etc. 2. The polycarbonate resin according to claim 1 , wherein a molar ratio of the repeat unit represented by Formula 1 to the repeat unit represented by Formula 2 ranges from about 5:1 to about 100:1 claim 1 , and the unit represented by Formula 3 is present in an amount of about 0.01 parts by mole to about 10 parts by mole relative to 100 parts by mole of the repeat unit represented by Formula 1 and the repeat unit represented by Formula 2.3. The polycarbonate resin according to claim 1 , wherein the polycarbonate resin has a weight average molecular weight of about 10 claim 1 ,000 g/mol to about 200 claim 1 ,000 g/mol.4. The polycarbonate resin according to claim 1 , wherein the polycarbonate resin has an intrinsic viscosity of about 0.1 dl/g to about 3.0 dl/g.5. The polycarbonate resin according to claim 1 , wherein the polycarbonate resin has a Mark-Houwink constant of about 0.50 to about 0.65.6. The polycarbonate resin according to claim 1 , wherein the polycarbonate resin has a flame retardancy of V-1 or more claim 1 , as measured on an about 2.0 mm thick specimen by the UL-94 vertical test method.7. The polycarbonate resin according to claim 1 , wherein the polycarbonate resin has a notched Izod impact strength of about 6 kgf·cm/cm to about 20 kgf·cm/cm claim 1 , as measured on an about ⅛″ thick specimen in accordance with ASTM D256.8. The polycarbonate resin according to claim 1 , wherein the polycarbonate resin has a transmittance of about 85% or more claim 1 , as measured on an about 3.2 mm thick specimen in accordance with ASTM D1003.9. The polycarbonate resin according to claim 1 , wherein the polycarbonate resin has a ...

POLYCARBONATE RESIN COMPOSITION AND MOLDED BODY OF SAME

Provided is a polycarbonate-based resin composition, including: 10 to 90 mass % of a polycarbonate-polyorganosiloxane copolymer (E-1); and 10 to 90 mass % of an aromatic polycarbonate resin (E-2) except the polycarbonate-polyorganosiloxane copolymer (E-1), in which the molecular weight distribution of the polyorganosiloxane block of the polycarbonate-polyorganosiloxane copolymer is controlled within a specific region. 3. The polycarbonate-based resin composition according to claim 1 , wherein the aromatic polycarbonate resin (E-2) contains an aromatic homopolycarbonate resin.4. The polycarbonate-based resin composition according to claim 1 , wherein the aromatic polycarbonate resin (E-2) contains a polycarbonate-polyorganosiloxane copolymer having a polycarbonate block (A′) formed of a repeating unit represented by the general formula (I) and a polyorganosiloxane block (B′) containing a repeating unit represented by the general formula (II).5. The polycarbonate-based resin composition according to claim 4 , wherein the polyorganosiloxane block (B′) has an average chain length of 20 or more to less than 60.6. The polycarbonate-based resin composition according to claim 4 , wherein the polyorganosiloxane block (B′) has an average chain length of 60 to 500.7. The polycarbonate-based resin composition according to claim 1 , wherein the polyorganosiloxane block (B) has an average chain length of 30 to 85.8. The polycarbonate-based resin composition according to claim 1 , wherein a content of the polyorganosiloxane block (B) in the polycarbonate-polyorganosiloxane copolymer (E-1) is 0.5 to 20.0 mass %.9. The polycarbonate-based resin composition according to claim 1 , wherein the polycarbonate-polyorganosiloxane copolymer (E-1) has a viscosity-average molecular weight of 12 claim 1 ,000 to 40 claim 1 ,000.10. The polycarbonate-based resin composition according to claim 1 , wherein in the general formula (I) claim 1 , a and b each represent 0 claim 1 , and X represents a ...

COPOLYCARBONATE AND COMPOSITION COMPRISING THE SAME

The present invention relates to copolycarbonates and a molded article comprising the same. The copolycarbonate according to the present invention has a structure in which a specific siloxane compound is introduced in a main chain of the polycarbonate, and thus has characteristics of providing excellent residence heat stability. 1. A copolycarbonate comprising: an aromatic polycarbonate-based first repeating unit; and one or more aromatic polycarbonate-based second repeating units having siloxane bonds , and having ΔYI of 0.5 to 5 as measured according to the following Equation 1:{'br': None, 'i': YI=YI', 'YI, 'Δ(320° C., 15 minutes)−(320° C., 0 minute) \u2003\u2003[Equation 1]'}in the Equation 1,YI (320° C., 0 minute) is YI (Yellow Index) measured in accordance with ASTM D1925 with respect to a specimen (width/length/thickness=60 mm/40 min/3 mm) which is obtained by injection-molding the copolycarbonate at 320° C., andYI (320 ° C., 15 minutes) is YI (Yellow Index) measured in accordance with ASTM D1925 with respect to a specimen (width/length/thickness=60 mm/40 mm/3 mm) which is obtained by residing the copolycarbonate at 320° C. for 15 minutes and then conducting injection molding.2. The copolycarbonate of claim 1 , whereinthe copolycarbonate has a melt index of 3 to 20 g/10 min as measured in accordance with ASTM D1238 (conditions of 300° C. and 1.2 kg).3. The copolycarbonate of claim 1 , whereinthe copolycarbonate has a weight average molecular weight of 1,000 to 100,000 g/mol.4. The copolycarbonate of claim 1 , whereinthe content of the aromatic polycarbonate-based first repeating units is 90 to 99% relative to the total weight of the aromatic polycarbonate-based first repeating units and one or more aromatic polycarbonate-based second repeating units having siloxane bonds.5. The copolycarbonate of claim 1 , whereinthe copolycarbonate comprises two kinds of aromatic polycarbonate-based second repeating units having siloxane bonds.7. The copolycarbonate of claim ...

COPOLYCARBONATE AS A SUPPORTING MATERIAL IN 3-D PRINTING

The invention relates to the use of copolycarbonates stable at high temperature as a supporting material in the FDM (fused deposition modeling) method, said copolycarbonates having a Vicat temperature determined in accordance with ISO 306:2013 of at least 150° C. Polyester, polyamide, PC/polyester blend, and/or polyaryl ether ketone is used as a printing material. Used as copolycarbonates are copolycarbonates containing one or more monomer units selected from the group consisting of the structural units of general formulas (1a), (1b), (1c), (1d), in which Rrepresents hydrogen or Cto Calkyl, Rrepresents Cto Calkyl, n represents 0, 1, 2, or 3, and Rrepresents Cto Calkyl, aralkyl, or aryl, and/or containing one or more monomer units of formula (1e), in which Rrepresents hydrogen, Cl, Br, or a Cto Calkyl residue, Rand Rare the same or different and represent, independently of each other, an aryl residue, a Cto Calkyl residue, or a Cto Calkylaryl residue, and wherein X is a single bond, —CO—, —O—, a Cto Calkylene residue, a Cto Calkylidene residue, a Cto Ccycloalkylidene residue, or a Cto Carylene residue, which optionally can be condensed with further aromatic rings that contain heteroatoms, n is a number from 1 to 500, m is a number from 1 to 10, and p is 0 or 1. 111.-. (canceled)14. The process as claimed in claim 12 , characterized in that the copolycarbonate has been prepared from the monomers 1 claim 12 ,1-bis(4-hydroxyphenyl)-3 claim 12 ,3 claim 12 ,5-trimethylcyclohexane and 2 claim 12 ,2-bis(4-hydroxyphenyl)propane.15. The process as claimed in claim 12 , characterized in that the copolycarbonate has a Vicat temperature (VST/B120) claim 12 , determined according to ISO 306:2013 claim 12 , of at least 200° C.18. The process as claimed in claim 12 , characterized in that the support material is removed at a solvent temperature of 50 to 80° C.19. The process as claimed in claim 12 , characterized in that the support material is removed under the action of ...

POLYCARBONATE RESIN

Provided is a polycarbonate resin having excellent solubility in low-boiling-point non-halogenated solvents and having a high glass transition temperature. The polycarbonate resin includes constituent units (A) represented by general formula (1) and constituent units (B) represented by general formula (2), the molar ratio of the constituent units (A) to the constituent units (B), A/B, being 45/55 to 95/5. 2. The resin according to claim 1 , which has a viscosity average molecular weight (Mv) of 16 claim 1 ,000 to 80 claim 1 ,000.3. The resin according to claim 1 , which has a viscosity average molecular weight (Mv) of 26 claim 1 ,000 to 80 claim 1 ,000.4. The resin according to claim 1 , which has a glass transition temperature (Tg) of 150° C. or higher.8. The resin according to claim 7 , wherein at least one of R claim 7 , R claim 7 , R claim 7 , R claim 7 , R claim 7 , R claim 7 , R claim 7 , R claim 7 , Rand Ris an alkyl group having 1 to 3 carbon atoms.9. The resin according to claim 1 , wherein X represents a cycloalkylene group having 7 to 12 carbon atoms claim 1 , and wherein the cycloalkylene group may be substituted with 1 to 12 alkyl groups having 1 to 3 carbon atoms.10. The resin according to claim 1 , wherein:X represents a divalent group represented by formula (4) above; and{'sub': 11', '12, 'Rand Rare each independently selected from a hydrogen atom and an aryl group having 6 to 12 carbon atoms.'}11. The resin according to claim 1 , wherein R claim 1 , R claim 1 , R claim 1 , R claim 1 , R claim 1 , R claim 1 , Rand Rare each independently selected from a hydrogen atom claim 1 , an alkyl group having 1 to 3 carbon atoms and an aryl group having 6 to 12 carbon atoms.12. A film containing the polycarbonate resin according to .13. A resin solution containing a non-halogenated organic solvent and the polycarbonate resin according to dissolved in the non-halogenated solvent.14. The resin solution according to claim 12 , wherein the concentration of the ...

POLYCARBONATE COMPOSITIONS CONTAINING A CARBOXYLIC ACID AND THEIR GLYCEROL OR DIGLYCEROL ESTERS

The invention relates to compositions comprising polycarbonate and to a mixture comprising a carboxylic acid and the glycerol and/or diglycerol esters thereof, to the use of the compositions for production of blends or mouldings and to mouldings obtainable therefrom. The compositions have improved rheological and optical properties. 115.-. (canceled)16. A composition comprisingA) 20.0 wt % to 99.95 wt % of aromatic polycarbonate andB) 0.05 wt % to 10.0 wt % of a mixture comprising at least one saturated or unsaturated monocarboxylic acid having a chain length of 6 to 30 carbon atoms and at least one ester of this monocarboxylic acid based on glycerol and/or diglycerol.17. The composition according to claim 16 , comprising at least one monocarboxylic acid selected from the group consisting of caprylic acid claim 16 , capric acid claim 16 , lauric acid claim 16 , myristic acid claim 16 , palmitic acid claim 16 , margaric acid claim 16 , stearic acid claim 16 , arachidic acid claim 16 , behenic acid claim 16 , lignoceric acid claim 16 , palmitoleic acid claim 16 , petroselic acid claim 16 , oleic acid claim 16 , elaidic acid claim 16 , linoleic acid claim 16 , linolenic acid claim 16 , arachidonic acid claim 16 , timnodonic acid and cervonic acid.18. The composition according to claim 16 , wherein component B is a mixture obtainable by partial esterification of glycerol and/or diglycerol with a monocarboxylic acid mixture comprising two or more monocarboxylic acids having a chain length of 6 to 30 carbon atoms.19. The composition according to claim 18 , wherein the monocarboxylic acid mixture comprises oleic acid.20. The composition according to claim 16 , wherein the amount of component B is 0.05 to 1.0 wt %.21. The composition according to claim 16 , wherein the amount of aromatic polycarbonate is at least 75 wt %.22. The composition according to claim 16 , consisting of the following components:A) 87.0 wt % to 99.95 wt % of aromatic polycarbonate,B) 0.05 wt % to 6.0 ...

POLYCARBONATE-BASED RESIN, PRODUCTION METHOD THEREFOR, AND POLYCARBONATE-BASED RESIN COMPOSITION

Provided is a polycarbonate-based resin having a ratio of an amine terminal to all terminal groups of 1.0 mol % or more. 1. A polycarbonate-based resin having a ratio of an amine terminal to all terminal groups of 1.0 mol % or more.2. The polycarbonate-based resin according to claim 1 , wherein the polycarbonate-based resin has the ratio of the amine terminal to all terminal groups of 20.0 mol % or less.4. The polycarbonate-based resin according to claim 1 , wherein the polycarbonate-based resin comprises 10 parts by mass to 100 parts by mass of a branched polycarbonate-based resin (A-1) and 0 parts by mass to 90 parts by mass of an aromatic polycarbonate-based resin (A-2) except the branched polycarbonate-based resin (A-1).6. The polycarbonate-based resin according to claim 5 , wherein the branched structure represented by the general formula (I) is a structure derived from 1 claim 5 ,1 claim 5 ,1-tris(4-hydroxyphenyl)ethane.7. The polycarbonate-based resin according to claim 1 , wherein the polycarbonate-based resin has a viscosity-average molecular weight of 17 claim 1 ,000 or more and 28 claim 1 ,000 or less.8. A method of producing a polycarbonate-based resin claim 1 , comprising:a step (1) of causing a dihydric phenol and phosgene to react with each other in an organic solvent to produce a polycarbonate oligomer; anda step (2) of causing the polycarbonate oligomer, the dihydric phenol, and a terminal stopper to react with each other to produce the polycarbonate-based resin,the step (2) comprising using an amine-based catalyst as a polymerization catalyst at a molar ratio of 0.002 or more and 0.030 or less with respect to a chloroformate group of the polycarbonate oligomer obtained in the step (1).9. The method of producing a polycarbonate-based resin according to claim 8 , further comprising adding a branching agent in the step (1) and/or the step (2).11. The method of producing a polycarbonate-based resin according to claim 9 , wherein the branching agent is ...

ENDCAPPED POLYCARBONATES, METHODS OF MANUFACTURE, AND ARTICLES FORMED THEREFROM

An endcapped polycarbonate, comprising thioether carbonyl endcaps of the formula 4. The endcapped polycarbonate of claim 1 ,wherein the thioether carbonyl endcaps are present in an amount effective to provide 3 to 80 parts per million by weight of added sulfur, based on the total parts by weight of the endcapped polycarbonate; orhaving a total sulfur content of 3 to 150 parts per million by weight, based on the total parts by weight of the endcapped polycarbonate;or both.5. The endcapped polycarbonate of claim 1 , wherein the polycarbonate is a homopolycarbonate claim 1 , a copolycarbonate claim 1 , a poly(ester-carbonate) claim 1 , a poly(carbonate-siloxane) claim 1 , a poly(ester-carbonate-siloxane) claim 1 , or a combination thereof.6. The endcapped polycarbonate of claim 1 , wherein the polycarbonate comprises:0 to 95 mole percent, of low heat aromatic dihydroxy monomer groups; and5 to 100 mole percent of high heat aromatic dihydroxy monomer groups.8. The endcapped polycarbonate of claim 1 , wherein claim 1 , as compared to the same polycarbonate without the thioether carbonyl endcaps claim 1 , the endcapped polycarbonate has at least one of lower yellowness index claim 1 , lower yellowness index after heat aging claim 1 , or less plate-out after molding.9. The endcapped polycarbonate of claim 1 , wherein a molded sample of the endcapped polycarbonate has at least one ofa haze of less than 10% as measured according to ASTM D1003-00, Procedure B, illuminant C, on a spectrophotometer, at a thickness of 3.2 mm; ora visible transmission of greater than or equal to 70% as determined according to ASTM D1003-00, Procedure A, using D65 illumination, 10 degrees observer, at a thickness of 3.2 mm.11. The method of claim 10 , wherein the manufacturing is by interfacial polymerization claim 10 , and G is a hydroxy group claim 10 , a salt of a hydroxy group claim 10 , or a halide.12. The method of claim 10 , wherein the manufacturing is in the melt claim 10 , and G is a ...

POLYCARBONATE-POLYCARBONATE/POLYSILOXANE COMPOSITIONS HAVING HIGH FLOW, HIGH IMPACT, AND GOOD RELEASE PROPERTIES

Thermoplastic compositions include a polycarbonate-siloxane copolymer comprising: from about 49.5 wt % to about 97.95 wt % of at least one polycarbonate polymer; from about 2.0 wt % to about 49.5 wt % of at least one polycarbonate-siloxane r copolymer; and from about 0.05 wt % to about 1.0 wt % of at least one release agent. The composition exhibits a melt volume flow rate of at least about 25 cm/10 min, a ductile/brittle transition temperature of less than or equal to 10° C., and high gloss after metallization and/or a substantial tensile yield strength retention improvement when exposed to sunscreen. Methods of forming an article include: forming a mixture comprising the thermoplastic composition, and injection molding, extruding, rotational molding, blow molding or thermoforming the mixture in a mold to form the article. Such compositions and methods may be used to form articles including, but not limited to, automotive bezels and housings in consumer devices. 1. A thermoplastic composition comprising:from about 49.5 wt % to about 97.95 wt % of at least one polycarbonate polymer based on the total weight of the thermoplastic composition;from about 2.0 wt % to about 49.5 wt % of at least one polycarbonate-siloxane copolymer, based on the total weight of the thermoplastic composition wherein a total siloxane content of the thermoplastic composition is about 1.0 wt % to about 5.0 wt % based on the total weight of the thermoplastic composition; andfrom about 0.05 wt % to about 1.0 wt % of at least one mold release agent, based on the total weight of the thermoplastic composition,wherein the thermoplastic composition exhibits{'sup': '3', 'a melt volume flow rate of at least about 25 cm/10 min, as determined according to ISO 1133 at 300° C. using a 1.2 kg load;'}a ductile/brittle transition temperature of less than or equal to 10° C., as determined in accordance with ISO 180-1A on a molded part having a thickness of 3 mm; andan L* that is less than about 30% higher ...

NOVEL POLYORGANOSILOXANE, AND COPOLYCARBONATE PREPARED BY USING THE SAME (AMENDED)

Provided are a novel polyorganosiloxane capable of preparing copolycarbonate with improved weather resistance and flowability while maintaining the intrinsic physical properties of polycarbonate resin, and a copolycarbonate prepared by using the same. 2. The polyorganosiloxane of claim 1 , wherein W is a divalent functional group comprising —(Calkylene)—COO—(Calkylene)-O—.4. The polyorganosiloxane of claim 1 , wherein Rto Rare each independently hydrogen or Calkyl.5. The polyorganosiloxane of claim 1 , wherein Ris hydrogen or Calkoxy.6. The polyorganosiloxane of claim 1 , wherein X is —CO-(phenylene)-CO—.7. The polyorganosiloxane of claim 1 , wherein Y is Calkylene.10. The copolycarbonate of claim 9 , wherein Xis Calkylene unsubstituted or substituted with phenyl claim 9 , Ccycloalkylene claim 9 , O claim 9 , S claim 9 , SO claim 9 , SOor CO.11. The copolycarbonate of claim 9 , wherein Rto Rare each independently hydrogen claim 9 , Calkyl claim 9 , chloro claim 9 , or bromo.12. A molded article manufactured by using the copolycarbonate of .13. A molded article manufactured by using the copolycarbonate of .14. A molded article manufactured by using the copolycarbonate of . This application claims the benefit of Korean Patent Application No. 10-2015-0125677 on Sep. 4, 2015 with the Korean Intellectual Property Office, the disclosure of which is herein incorporated by reference in its entirety.The present invention relates to a novel polyorganosiloxane capable of preparing copolycarbonate with improved weather resistance and flowability, and a copolycarbonate prepared by using the same.Polyorganosiloxane as a kind of silicone means a polymer having a siloxane bond substituted with organic groups as a main chain. For example, polyorganosiloxane is prepared by condensation polymerization of an aromatic diol such as bisphenol A and a carbonate precursor such as phosgene, and is colorless, odorless, resistant to oxidation, and stable at room temperature, and hypoallergenic ...

POLYCARBONATE AND PREPARATION METHOD THEREOF

Provided is a polycarbonate of Chemical Formula 1: 4. The polycarbonate of claim 3 , wherein Rto Rare each independently hydrogen or Calkyl.5. The polycarbonate of claim 3 , wherein a weight ratio of the repeating unit of Chemical Formula 1 and the repeating unit of Chemical Formula 2 is 5:−95 to 40:−60.6. The polycarbonate of claim 1 , wherein a weather resistance index (ΔE) calculated according to the following Equation 1 is 1 to 15 claim 1 , and a melt index measured in accordance with ASTM D1238 (300° C. claim 1 , 1.2 kg condition) is 8 to 120 g/10 min:{'br': None, 'i': E', 'L′−L', 'a′−a', 'b′−b, 'sup': 3', '2', '2, 'Δ√{square root over ((()+()+())}) \u2003\u2003Equation 1'}wherein in Equation 1, L, a and b are measured for a specimen with a thickness of ⅛ inch in accordance with ASTM D7869, and L′, a′ and b′ are measured after leaving the specimen in 2250 hr weathering condition.10. The method of of claim 9 , wherein the aromatic diol compound of Chemical Formula 4 is selected from the group consisting of bis(4-hydroxyphenyl)methane claim 9 , bis(4-hydroxyphenyl)ether claim 9 , bis(4-hydroxyphenyl)sulfone claim 9 , bis(4-hydroxyphenyl)sulfoxide claim 9 , bis(4-hydroxyphenyl)sulfide claim 9 , bis(4-hydroxyphenyl)ketone claim 9 , 1 claim 9 ,1-bis(4-hydroxyphenyl)ethane claim 9 , 2 claim 9 ,2-bis(4-hydroxyphenyl)propane (bisphenol A) claim 9 , 2 claim 9 ,2-bis(4-hydroxyphenyl)butane claim 9 , 1 claim 9 ,1-bis(4-hydroxyphenyl)cyclohexane (bisphenol Z) claim 9 , 2 claim 9 ,2-bis(4-hydroxy-3 claim 9 ,5-dibromophenyl)propane claim 9 , 2 claim 9 ,2-bis(4-hydroxy-3 claim 9 ,5-dichlorophenyl)propane claim 9 , 2 claim 9 ,2-bis(4-hydroxy-3-bromophenyl)propane claim 9 , 2 claim 9 ,2-bis(4-hydroxy-3-chlorophenyl)propane claim 9 , 2 claim 9 ,2-bis(4-hydroxy-3-methylphenyl)propane claim 9 , 2 claim 9 ,2-bis(4-hydroxy-3 claim 9 ,5-dimethylphenyl)propane claim 9 , and 1 claim 9 ,1-bis(4-hydroxyphenyl)-1-phenylethane.11. A molded article claim 1 , comprising the polycarbonate of ...

POLYCARBONATE AND PREPARATION METHOD THEREOF

The present disclosure relates to a polycarbonate and a preparation method thereof, which has a novel structure with an improvement in weather resistance and refractive index, while having excellent mechanical properties. 2. The polycarbonate of claim 1 ,{'sub': '1-5', 'wherein Y is Calkylene.'}5. The polycarbonate of claim 4 ,{'sub': 1', '4', '1-4, 'wherein Rto Rare each independently hydrogen, or Calkyl.'}6. The polycarbonate of claim 4 ,wherein the repeating unit represented by Chemical Formula 1 is included in an amount of 5 wt % to 50 wt % based on a total weight of the repeating units.7. The polycarbonate of claim 4 ,wherein the repeating unit represented by the Chemical Formula 1 is included in an amount of more than 50 wt % and 99 wt % or less based on a total weight of the repeating units.8. The polycarbonate of claim 1 ,wherein a refractive index (nD) of the polycarbonate measured in accordance with JIS-K-7142 is 1.58 to 1.70.9. The polycarbonate of claim 1 , {'br': None, 'i': E', 'L′−L', 'a′−a', 'b′−b, 'sup': 2', '2', '2, 'Δ=√{square root over ((()+()+()))}\u2003\u2003[Equation 1]'}, 'wherein a weather resistance index (ΔE) of the polycarbonate is 30 or less, calculated according to Equation 1 by measuring L, a, and b values of a specimen in accordance with ASTM D7869 and measuring L′, a′ and b′ values again after leaving the specimen in 2250 hr weathering condition10. The polycarbonate of claim 1 ,wherein a melt index of the polycarbonate measured in accordance with ASTM D1238 (300° C., 1.2 kg condition) is 10 g/10 min to 50 g/10 min.15. The method of claim 14 ,wherein the aromatic diol compound represented by the Chemical Formula 4 is at least one compound selected from the group consisting of bis(4-hydroxyphenyl)methane, bis(4-hydroxyphenyl)ether, bis(4-hydroxyphenyl)sulfone, bis(4-hydroxyphenyl)sulfoxide, bis(4-hydroxyphenyl)sulfide, bis(4-hydroxyphenyl)ketone, 1,1-bis(4-hydroxyphenyl)ethane, 2,2-bis(4-hydroxyphenyl)propane (bisphenol A), 2,2-bis(4- ...

POLYCARBONATE AND PREPARATION METHOD THEREOF

The present disclosure relates to a polycarbonate and a preparation method thereof, which has a novel structure with an improvement in weather resistance and refractive index, while having excellent mechanical properties. 4. The polycarbonate of claim 3 ,{'sub': 1', '4', '1-4, 'wherein Rto Rare each independently hydrogen, or Calkyl.'}5. The polycarbonate of claim 3 ,wherein the repeating unit represented by Chemical Formula 1 is included in an amount of 5 to 50 wt % based on a total weight of the repeating units.6. The polycarbonate of claim 3 ,wherein the repeating unit represented by Chemical Formula 1 is included in an amount of more than 50 wt % and 99 wt % or less based on a total weight of the repeating units.7. The polycarbonate of claim 1 ,wherein a refractive index (nD) of the polycarbonate measured in accordance with JIS-K-7142 is 1.58 to 1.68.8. The polycarbonate of claim 1 , {'br': None, 'i': E', 'L′−L', 'a′−a', 'b′−b, 'sup': 2', '2', '2, 'Δ=√{square root over ((()+()+()))}.\u2003\u2003[Equation 1]'}, 'wherein a weather resistance index (ΔE) of the polycarbonate is 31 or less, calculated according to Equation 1 by measuring L, a, and b values of a specimen in accordance with ASTM D7869 and measuring L′, a′ and b′ values again after leaving the specimen in 2250 hr weathering condition9. The polycarbonate of claim 1 ,wherein a melt index of the polycarbonate measured in accordance with ASTM D1238 (300° C., 1.2 kg condition) is 3 g/10 min to 30 g/10 min.14. The method of claim 13 ,wherein the aromatic diol compound represented by the Chemical Formula 4 is at least one compound selected from the group consisting of bis(4-hydroxyphenyl)methane, bis(4-hydroxyphenyl)ether, bis(4-hydroxyphenyl)sulfone, bis(4-hydroxyphenyl)sulfoxide, bis(4-hydroxyphenyl)sulfide, bis(4-hydroxyphenyl)ketone, 1,1-bis(4-hydroxyphenyl)ethane, 2,2-bis(4-hydroxyphenyl)propane (bisphenol A), 2,2-bis(4-hydroxyphenyl)butane, 1,1-bis(4-hydroxyphenyl)cyclohexane (bisphenol Z), 2,2-bis(4- ...

METHOD FOR PRODUCING POLYCARBONATE-POLYORGANOSILOXANE COPOLYMER

Provided is a method of producing a polycarbonate-polyorganosiloxane copolymer, including a step (Q) of causing a polycarbonate oligomer and at least one of polyorganosiloxanes represented by the following general formulae (i) to (iii) to react with each other in an organic solvent, in which in the step, a solid content weight x (g/L) of the polycarbonate oligomer in 1 L of a mixed solution of the organic solvent and the polycarbonate oligomer, a concentration y (mass %) of the polyorganosiloxane in the polycarbonate-polyorganosiloxane copolymer to be obtained, and a chain length n of the polyorganosiloxane satisfy specific conditions. 2. The method of producing a polycarbonate-polyorganosiloxane copolymer according to claim 1 , wherein in the step (Q) claim 1 , the solid content weight x (g/L) of the polycarbonate oligomer in 1 L of the mixed solution of the organic solvent and the polycarbonate oligomer claim 1 , the concentration y (mass %) of the polyorganosiloxane in the polycarbonate-polyorganosiloxane copolymer to be obtained claim 1 , and the chain length n of the polyorganosiloxane satisfy the following mathematical formula (1).{'br': None, 'sup': −5', '3', '−5', '2', '−4', '2, 'b': 1', '5', '10, '−2.0×10x+1.1×10nx+.×yx'}{'br': None, 'sup': −7', '2', '−4', '2', '−5, '−6.0×10nx−1.6×10yx−2.8×10nyx−18.8≤0\u2003\u2003(1)'}3. The method of producing a polycarbonate-polyorganosiloxane copolymer according to claim 1 , wherein in the step (Q) claim 1 , the chain length n of the polyorganosiloxane and the concentration y (mass %) of the polyorganosiloxane in the polycarbonate- polyorganosiloxane copolymer to be obtained satisfy the following mathematical formula (2).{'br': None, 'n×y≥1100\u2003\u2003(2)'}4. The method of producing a polycarbonate-polyorganosiloxane copolymer according to claim 1 , wherein the polycarbonate oligomer has a weight-average molecular weight of from 1 claim 1 ,500 to 2 claim 1 ,900.5. The method of producing a polycarbonate- ...

POLYCARBONATE RESIN COMPOSITION

Provided is a polycarbonate resin composition, including, with respect to 100 parts by mass of an aromatic polycarbonate resin (A), 0.005 part by mass to 1 part by mass of a phosphorus-based compound (B) having an aryl group, and 0.005 part by mass to 5 parts by mass of a polyether compound (C) having a specific polyoxyalkylene structure, in which: an amount of a compound having a phenol structure produced by decomposition of the phosphorus-based compound (B) 1,500 hours after standing thereof under conditions of 40° C. and a humidity of 90% is 5 mass % or less with respect to the phosphorus-based compound (B); and when a weight of the phosphorus-based compound (B) is measured with a thermogravimetric-differential thermal analysis machine under a nitrogen atmosphere, a temperature at which the weight becomes smaller than the weight before the measurement by 2% is 340° C. or more. 1. A polycarbonate resin composition , comprising , with respect to 100 parts by mass of an aromatic polycarbonate resin (A) , 0.005 part by mass to 1 part by mass of a phosphorus-based compound (B) having an aryl group , and 0.005 part by mass to 5 parts by mass of a polyether compound (C) having a polyoxyalkylene structure ,wherein:an amount of a compound having a phenol structure produced by decomposition of the phosphorus-based compound (B) 1,500 hours after standing thereof under conditions of 40° C. and a humidity of 90% is 5 mass % or less with respect to the phosphorus-based compound (B);when a weight of the phosphorus-based compound (B) is measured with a thermogravimetric-differential thermal analysis (TG-DTA) machine under a nitrogen atmosphere, a temperature at which the weight becomes smaller than the weight before the measurement by 2% is 340° C. or more; and {'br': None, 'sup': C3', 'C1', 'C2', 'C4, 'sub': m', 'n, 'RO—(RO)(RO)—R\u2003\u2003(1)'}, 'the polyether compound (C) is represented by the following formula (1){'sup': C1', 'C2', 'C1', 'C2', 'C1', 'u', 'C3', 'C4', 'C3', ...

COPOLYCARBONATE RESIN COMPOSITION AND ARTICLE INCLUDING THE SAME

The present invention relates to a copolycarbonate resin composition having improved mechanical properties such as impact resistance and chemical resistance while maintaining resin flowability, and an article including the same. 1. A copolycarbonate resin composition comprising:a copolycarbonate resin including an aromatic polycarbonate-based first repeating unit and one or more aromatic polycarbonate-based second repeating unit having at least one siloxane bond; anda polysiloxane polymer containing a hydrocarbon-based functional group having 2 or more carbon atoms.2. The copolycarbonate resin composition of claim 1 , wherein:the polysiloxane polymer contains 0.001 mol % to 10 mol % of the hydrocarbon-based functional group having 2 or more carbon atoms.3. The copolycarbonate resin composition of claim 1 , wherein:the polysiloxane polymer includes a polysiloxane repeating unit including the hydrocarbon-based functional group having 2 or more carbon atoms and a polydimethylsiloxane repeating unit.4. The copolycarbonate resin composition of claim 1 , wherein:the hydrocarbon-based functional group includes one or more selected from the group consisting of an aliphatic hydrocarbon functional group, a cycloaliphatic hydrocarbon functional group and an aromatic hydrocarbon functional group.5. The copolycarbonate resin composition of claim 4 , wherein:the aliphatic hydrocarbon functional group includes a straight chain or branched chain alkyl group; or vinyl-based functional group.8. The copolycarbonate resin composition of claim 3 , wherein:a mole ratio of the polysiloxane repeating unit including the hydrocarbon functional group having 2 or more carbon atoms to the polydimethylsiloxane repeating unit is 0.00001 to 0.1.9. The copolycarbonate resin composition of claim 1 , wherein:the polysiloxane polymer further includes a hydrocarbon-based functional group having 2 or more carbon atoms bonded to an end of the polysiloxane polymer.11. The copolycarbonate resin composition ...

COPOLYCARBONATE AND METHOD FOR PREPARING THE SAME

Provided are a copolycarbonate having superior weather resistance as well as excellent mechanical properties, and a preparation method thereof. 2. The copolycarbonate of claim 1 , wherein Y is Calkylene.3. The copolycarbonate of claim 1 , wherein Rto Rare each independently hydrogen or Calkyl.4. The copolycarbonate of claim 1 , wherein a molar ratio of the repeating unit represented by Chemical Formula 1 and the repeating unit represented by Chemical Formula 2 is 1:0.001 to 1:1.5. The copolycarbonate of claim 1 , wherein a change in yellow index (dYI) is 20 or less claim 1 , as measured in accordance with ASTM G155.7. The preparation method of claim 6 , wherein the compound represented by Chemical Formula 3 is used in an amount of 0.1% by weight or more and 20% by weight or less claim 6 , based on 100% by weight of the composition.8. A molded article manufactured by using the copolycarbonate of . This application claims the benefit of Korean Patent Application No. 10-2015-0123707 on Sep. 1, 2015 and Korean Patent Application No. 10-2016-0019091 on Feb. 18, 2016 with the Korean Intellectual Property Office, the disclosure of which is herein incorporated by reference in its entirety.The present invention relates to a copolycarbonate having superior weather resistance as well as excellent mechanical properties, and a preparation method thereof.A polycarbonate resin is a polymer material which is applied to a wide range of fields such as exterior materials of electrical and electronic products, automotive parts, construction materials, optical components, etc., due to their excellent physical properties such as impact strength, dimensional stability, heat resistance, transparency, etc.With recent expansion of the application fields of the polycarbonate resin, there is a demand for a novel structure of copolycarbonate which has improved heat resistance and weather resistance while maintaining the intrinsic physical properties of the polycarbonate resin.Accordingly, ...

Polycarbonate based resin composition and molded articles thereof

The present invention relates to a polycarbonate based resin composition and molded articles thereof, and more particularly, to a polycarbonate based resin composition of which impact strength, flowability (fluidity), and the like, are improved, and molded articles thereof.

POLYCARBONATE-BASED RESIN COMPOSITION AND MOLDED ARTICLE THEREOF

The present invention relates to a polycarbonate-based resin composition and a molded article thereof, and more particularly, to a polycarbonate-based resin composition exhibiting low deformation characteristic, excellent impact strength, excellent appearance surface characteristic, and excellent flame retardancy, and a molded article formed therefrom. 2. The polycarbonate-based resin composition of claim 1 , wherein:the polycarbonate resin has a melt index (MI) of 5 g/10 min to 25 g/10 min at a temperature of 300° Cand a load of 1.2 kg.7. The polycarbonate-based resin composition of claim 1 , wherein:the copolycarbonate resin includes 90 to 99.999 wt % of the first repeating unit and 0.001 to 10 wt % of the second repeating unit.8. The polycarbonate-based resin composition of claim 1 , wherein:the polycarbonate resin and the copolycarbonate resin each have a weight average molecular weight of 1,000 to 100,000 g/mol.9. The polycarbonate-based resin composition of claim 1 , wherein:the glass fiber is a glass fiber surface-treated with an epoxy silane-based compound or an olefin silane-based compound, or a surface-untreated glass fiber.10. The polycarbonate-based resin composition of claim 1 , wherein: {'br': None, 'i': 'L/D', 'Aspect ratio (δ)=\u2003\u2003[Equation 1]'}, 'the glass fiber has a rectangular, circular or elliptical cross section in a direction perpendicular to a longitudinal direction, and has an aspect ratio according to Equation 1 below of 100 to 500, a length (L) of 2 to 7 mm, and D of 5 to 20 μmin Equation 1, L is a length of the glass fiber, D is a length of the longest side of the rectangular cross section, a length of a diameter of the circular cross section, or a length of the longest diameter of the elliptical cross section.11. The polycarbonate-based resin composition of claim 1 , wherein:the rubber-modified vinyl-based graft copolymer is a graft copolymer having a core-shell structure in which a vinyl-based unsaturated monomer is grafted to a ...

Synthetic resin laminated sheet

A synthetic resin laminated sheet, in which whitening, cracking, and foaming do not occur when thermoforming is carried out, in particular when deep-draw molding is carried out, and defects do not occur during lamination of a hard coating layer; and a molded article obtained by molding the laminated sheet. A synthetic resin laminated sheet has a coating layer, which includes an acrylic resin, laminated on one surface of a substrate layer including a polycarbonate resin in which a monohydric phenol represented by general formula (1) is used as a chain terminator and is obtained by reacting the monohydric phenol with a dihydric phenol and a carbonate binding agent and has a viscosity average molecular weight of 18000-35000. (In the formula, R1 represents a C8-36 alkyl group or a C8-36 alkenyl group. R2-R5 each represent hydrogen, halogen, or an optionally substituted C1-20 alkyl group or C6-12 aryl group).

METHOD FOR PRODUCING POLYCARBONATE-POLYORGANOSILOXANE COPOLYMER

Provided is a method of producing a polycarbonate-polyorganosiloxane copolymer, including a step (a) of producing a polycarbonate oligomer with an alkaline aqueous solution of a dihydric phenol, phosgene, and an organic solvent, the method further including a step of setting a content of a polycarbonate-polyorganosiloxane copolymer in the organic solvent to be introduced into the step (a) to less than 850 ppm by mass. 1. A method of producing a polycarbonate-polyorganosiloxane copolymer , comprising:a step (a) of producing a polycarbonate oligomer with an alkaline aqueous solution of a dihydric phenol, phosgene, and an organic solvent, andthe method further comprising a step of setting a content of a polycarbonate-polyorganosiloxane copolymer in the organic solvent to be introduced into the step (a) to less than 850 ppm by mass.2. The method of producing a polycarbonate-polyorganosiloxane copolymer according to claim 1 , further comprising:a step (b) of causing the polycarbonate oligomer obtained in the step (a), the alkaline aqueous solution of the dihydric phenol, and a polyorganosiloxane to react with each other to provide a polycarbonate-polyorganosiloxane copolymer;a step (c) of continuously or intermittently discharging a solution containing the polycarbonate-polyorganosiloxane copolymer from a reactor of the step (b), separating the discharged solution into an aqueous phase and an organic solvent phase, washing the separated organic solvent phase, and then further separating the washed phase into an aqueous phase and an organic solvent phase; anda step (d) of concentrating and drying the organic solvent phase containing the polycarbonate-polyorganosiloxane copolymer obtained in the step (c) to remove the organic solvent,wherein part or a total amount of the organic solvent removed in the step (d) is used as the organic solvent to be introduced into the step (a).3. The method of producing a polycarbonate-polyorganosiloxane copolymer according to claim 1 , ...

Copolycarbonate resin composition

The copolycarbonate composition according to the present invention has characteristics that it has excellent mobility and thus is excellent in various physical properties simultaneously.

COPOLYCARBONATE AND COMPOSITION CONTAINING THE SAME (As Amended)

The present invention relates to a copolycarbonate and a composition comprising the same. The copolycarbonate according to the present invention has a structure in which a specific siloxane compound is introduced in a main chain of the polycarbonate, and thus has effects of improving impact strength at low temperature, YI (Yellow Index) and melt index simultaneously.

Copolycarbonate and composition containing the same

The present invention relates to a copolycarbonate and a composition comprising the same. The copolycarbonate according to the present invention has a structure in which a specific siloxane compound is introduced in a main chain of the polycarbonate, and thus exhibits an excellent transparency and a high spiral flow while having a high impact strength at room temperature and a low melt index.

Polycarbonate resin having amine resistance

A polycarbonate copolymer or copolymerized polycarbonate blend having excellent amine resistance, which has, as main constituent units, (A) constituent units each represented by the following formula (1): wherein, in the formula (1), each of R 1 and R 2 is independently a hydrogen atom, a hydrocarbon group having 1 to 9 carbon atoms and optionally containing an aromatic group, or a halogen atom, (B) constituent units each represented by the following formula (2): wherein, in the formula (2), each of R 3 and R 4 is independently an alkyl group having 1 to 6 carbon atoms or a halogen atom, and X is a single bond, a substituted or unsubstituted alkylene group, a substituted or unsubstituted alkylidene group, a sulfur atom, or an oxygen atom, and (C) constituent units each represented by the following formula (3): wherein, in the formula (3), W represents a single bond, a substituted or unsubstituted alkylene group, a substituted or unsubstituted alkylidene group, a sulfur atom, or an oxygen atom, wherein the amount of the constituent units (A) is 5 to 15 mol %, the amount of the constituent units (B) is 20 to 60 mol %, and the amount of the constituent units (C) is 25 to 75 mol %, based on the mole of the all constituent units, and the polycarbonate copolymer or copolymerized polycarbonate blend is excellent in scratch resistance, impact resistance, heat resistance, and amine resistance.

BRANCHED POLYCARBONATE RESIN AND METHOD FOR PRODUCING SAME

Provided is a branched polycarbonate resin, including a constituent unit represented by the general formula (I′). 2. The branched polycarbonate resin according to claim 1 , wherein the constituent unit represented by the general formula (I′) has a structure derived from a silsesquioxane.3. The branched polycarbonate resin according to claim 1 , wherein a in the constituent unit represented by the general formula (I′) represents 4 or more and 8 or less claim 1 , and b therein represents 0.4. (canceled)6. The branched polycarbonate resin according to claim 5 , wherein a in the structure represented by the general formula (II′) and/or the general formula (III′) represents 4 or more and 8 or less.7. (canceled)8. The branched polycarbonate resin according to claim 1 , wherein a content of the constituent unit represented by the general formula (I′) is from 0.1 mol % to 4.0 mol %.91. The branched polycarbonate resin according to claim claim 1 , wherein the resin has a viscosity-average molecular weight Mv of from 12 claim 1 ,000 to 70 claim 1 ,000.11. The branched polycarbonate resin according to claim 10 , wherein the branching agent has a silsesquioxane skeleton.12. The branched polycarbonate resin according to claim 10 , wherein a in the general formula (I) represents 4 or more and 8 or less claim 10 , and b therein represents 0.13. (canceled)15. The branched polycarbonate resin according to claim 14 , wherein a in the structure represented by the general formula (II) and/or the general formula (III) represents 4 or more and 8 or less.16. (canceled)17. The branched polycarbonate resin according to claim 10 , wherein the branching agent represented by the general formula (I) is soluble in dichloromethane.18. The branched polycarbonate resin according to claim 17 , wherein the branching agent represented by the general formula (I) has a solubility in 100 g of dichloromethane of 0.0024 g or more.19. (canceled)20. The branched polycarbonate resin according to claim 10 , ...

COMPOSITIONS OF PHOTO-ALIGNABLE MATERIALS

The invention relates to new compositions comprising a photo-alignable material comprising or deriving from a monomer of formula (I) and an additive selected from the group consisting of acid generators, base generators, acids or bases. 1. A composition comprising a photo-alignable material and an additive selected from the group consisting of acid generators , base generators , acids or bases.3. The composition according to claim 2 , wherein W is an unsubstituted or with A substituted phenyl ring claim 2 , wherein A represents a halogen claim 2 , a substituted or unsubstituted C-Calkyl claim 2 , a substituted or unsubstituted C-Calkenyl claim 2 , a substituted or unsubstituted C-Calkynyl claim 2 , or a carboxylic acid claim 2 , wherein one or more claim 2 , —C— claim 2 , —CH— claim 2 , —CH— claim 2 , group may independently from each other be replaced by a heteroatom.5. The composition according to claim 4 , wherein in the photo alignable material:{'sub': a', '1', '2', '0', '2', '0, 'R, z, n, n, x, S, A, R, T are as described above; and'}{'sub': 1', '5', '6, 'Zrepresents a substituted or unsubstituted C-Calicyclic group;'}{'sub': 1', '1', '24, 'Srepresents a substituted or unsubstituted C-Cstraight chain alkyl;'}E represents O, or S or NH;X, Y are H; and{'sub': '2', 'Zis CN.'}6. The composition according to claim 4 , wherein in the photo alignable material:{'sub': a', '1', '2', '0', '2', '0, 'R, z, n, n, x, S, R, T are as described above; and'}A represents H, one or more halogens, one or more methoxy groups or one or more carboxylic groups;{'sub': 1', '5', '6, 'Zrepresents a substituted or unsubstituted C-Calicyclic group;'}{'sub': 1', '1', '24, 'Srepresents a substituted or unsubstituted C-Cstraight chain alkyl;'}E represents O, or S or NH;X, Y are H; and{'sub': '2', 'Zis CN.'}7. The composition according to claim 4 , wherein in the photo alignable material:{'sub': a', '1', '2', '0', '2', '0, 'R, z, n, n, x, S, R, T are as described above; and'}A represents H, one ...

POLYCARBONATE-POLYORGANOSILOXANE COPOLYMER PRODUCTION METHOD

A method of producing a polycarbonate-polyorganosiloxane copolymer, including: a step (a) of obtaining a solution containing a polycarbonate-polyorganosiloxane copolymer through use of an alkaline aqueous solution of a dihydric phenol, phosgene, a polyorganosiloxane, and an organic solvent; a step (b) of continuously or intermittently draining the solution containing the copolymer from step (a), followed by separation of the drained solution into an aqueous phase and an organic phase to provide the organic phase with copolymer; and a step (c) of concentrating the organic phase with the from step (b) to remove the organic solvent, before heating the organic phase to a boiling region in the step (c), a viscosity of the organic phase being adjusted to 70 cP or less at 35° C., the polycarbonate-polyorganosiloxane copolymer obtained by the steps (a) to (c) including a polycarbonate-polyorganosiloxane copolymer containing a specific polycarbonate block (A) and a specific polyorganosiloxane block (B). 4. The method of producing a polycarbonate-polyorganosiloxane copolymer according to claim 1 , wherein the dihydric phenol comprises bisphenol A.5. The method of producing a polycarbonate-polyorganosiloxane copolymer according to claim 1 , wherein the organic phase comprises a methylene chloride solution containing the polycarbonate-polyorganosiloxane copolymer.6. The method of producing a polycarbonate-polyorganosiloxane copolymer according to claim 5 , wherein the methylene chloride solution containing the polycarbonate-polyorganosiloxane copolymer has a polymer concentration of from 10 mass % to 30 mass %.7. The method of producing a polycarbonate-polyorganosiloxane copolymer according to claim 1 , wherein concentrating the organic phase is performed by heating the organic phase to from 40° C. to 150° C. under a pressure of from 0.2 MPa to 2.0 MPa.8. The method of producing a polycarbonate-polyorganosiloxane copolymer according to claim 1 , wherein a polyorganosiloxane ...

MULTILAYER BODY

A multilayer body includes at least one layer (A) made of a polycarbonate resin (A) whose main repeating units include a unit (a-1) composed of an ether diol residue represented by the following formula (1) and a unit (a-2) composed of a diol residue represented by the following formula (2), and at least one layer (B) containing an aromatic polycarbonate resin (B), wherein the molar ratio of the unit (a-1) is 50 to 96 mol % and the molar ratio of the unit (a-2) is 4 to 50 mol %, with respect to 100 mol % of the total repeating units of the polycarbonate resin (A) and the proportion of the aromatic polycarbonate resin (B) in the layer (B) containing an aromatic polycarbonate resin (B) is 30% by weight or more, and the multilayer body is excellent in heat resistance, impact resistance, surface hardness, adhesion, and chemical resistance. 2. The multilayer body according to claim 1 , wherein the polycarbonate resin (A) has a glass transition temperature of 100° C. to 160° C.3. The multilayer body according to claim 1 , wherein the layer made of a polycarbonate resin (A) has a surface hardness of HB or higher.4. The multilayer body according to claim 1 , wherein the polycarbonate resin (A) further contains a carbonate unit (a-3) composed of an aliphatic diol or alicyclic diol residue claim 1 , and the molar ratio of the carbonate unit (a-3) is 1 to 20 mol % with respect to 100 mol % of the total repeating units of the polycarbonate resin (A).5. The multilayer body according to claim 1 , wherein the aromatic polycarbonate resin (B) has a glass transition temperature of 120° C. to 180° C.6. The multilayer body according to claim 1 , wherein the aromatic polycarbonate resin (B) is a polycarbonate resin using a dihydric phenol containing bisphenol A as a raw material. The present invention relates to a multilayer body excellent in heat resistance, impact resistance, surface hardness, adhesion, and chemical resistance.Polycarbonate resins made from bisphenol A have excellent ...

COPOLYCARBONATE AND COMPOSITION COMPRISING THE SAME

The present invention relates to a copolycarbonate and a composition comprising the same. The copolycarbonates according to the present invention has a structure in which a specific siloxane compound is introduced in a main chain of the polycarbonate, and thus exhibits improved chemical resistance and impact strength simultaneously. 1. A copolycarbonate comprising an aromatic polycarbonate-based first repeating unit; and one or more aromatic polycarbonate-based second repeating units having siloxane bonds , and {'br': None, 'sub': '0', 'TS/TS≧0.80 \u2003\u2003[Equation 1]'}, 'the copolycarbonate satisfies the following Equation 1in the Equation 1,{'sub': '0', 'TSis tensile stress measured in accordance with ASTM D638, and'}TS represents tensile stress measured in accordance with ASTM D638, after contacted with ethyl acetate for 168 hours in accordance with ASTM D543 (PRACTICE B).2. The copolycarbonate of claim 1 , wherein the copolycarbonate satisfies the Equation 2 below:{'br': None, 'sub': '0', 'TS/TS≧0.50 \u2003\u2003[Equation 2]'}in the Equation 2,{'sub': '0', 'TSis tensile stress measured in accordance with ASTM D638, and'}TS represents tensile stress measured in accordance with ASTM D638, after contacted with toluene for 168 hours in accordance with ASTM D543 (PRACTICE B).3. The copolycarbonate of claim 1 , wherein the copolycarbonate has an impact strength at low temperature of 600 to 1000 J/m as measured at −30° C. in accordance with ASTM D256 (⅛ inch claim 1 , Notched Izod).4. The copolycarbonate of claim 1 , wherein the copolycarbonate has impact strength at room temperature of 840 to 1000 J/m as measured at 23° C. in accordance with ASTM D256 (⅛ inch claim 1 , Notched Izod).5. The copolycarbonate of claim 1 , wherein the copolycarbonate has a weight average molecular weight of 1 claim 1 ,000 to 100 claim 1 ,000 g/mol.6. The copolycarbonate of claim 1 , wherein the copolycarbonate comprises two kinds of aromatic polycarbonate-based second repeating units ...

COPOLYCARBONATE AND COMPOSITION CONTAINING THE SAME

The present invention relates to a copolycarbonate and a composition comprising the same. The copolycarbonates according to the present invention has a structure in which a specific siloxane compound is introduced in a main chain of the polycarbonate, and has small difference between an impact strength at room temperature and an impact strength at low-temperature and thereby exhibits an excellent impact resistance. 1. A copolycarbonate comprising: an aromatic polycarbonate-based first repeating unit; and one or more aromatic polycarbonate-based second repeating units having siloxane bonds ,wherein the ratio of an impact strength at room temperature and an impact strength at low-temperature (impact strength at room temperature/impact strength at low-temperature) as measured at 23° C. and −30° C., respectively, in accordance with ASTM D256 (⅛ inch, Notched Izod) is 1.01 to 1.30, and the impact strength at room temperature is 840 to 1000 J/m.2. The copolycarbonate of whereinthe impact strength at low-temperature is 650 to 950 J/m.3. The copolycarbonate of whereinthe melt index as measured in accordance with ASTM D1238 (300° C., 1.2 kg conditions) is 3 to 20 g/10 min.4. The copolycarbonate of whereinthe copolycarbonate has a weight average molecular weight of 1,000 to 100,000 g/mol.5. The copolycarbonate of whereinthe copolycarbonate comprises two kinds of aromatic polycarbonate-based second repeating units having the siloxane bonds.7. The copolycarbonate of whereinthe repeating unit represented by Chemical Formula 1 is derived from one or more aromatic diol compounds selected from the group consisting of bis(4-hydroxyphenyl)methane,bis(4-hydroxyphenyl)ether, bis(4-hydroxyphenyl)sulfone, bis(4-hydroxyphenyl)sulfoxide, bis(4-hydroxyphenyl)sulfide, bis(4-hydroxyphenyl)ketone, 1,1-bis(4-hydroxyphenyl)ethane, bisphenol A, 2,2-bis(4-hydroxyphenyl)butane, 1,1-bis(4-hydroxyphenyl)cyclohexane, 2,2-bis(4-hydroxy-3,5-dibromophenyl)propane, 2,2-bis(4-hydroxy-3,5-dichlorophenyl) ...

COPOLYCARBONATE AND COMPOSITION CONTAINING THE SAME

The present invention relates to copolycarbonates and a composition comprising the same. The copolycarbonate according to the present invention has a structure in which a specific siloxane compound is introduced in a main chain of the polycarbonate and thus, has characteristics of providing improved impact strength at low-temperature and improved YI (yellow index) simultaneously. 1. A copolycarbonate comprising: an aromatic polycarbonate-based first repeating unit; and one or more aromatic polycarbonate-based second repeating units having siloxane bonds ,wherein the copolycarbonate has a YI (yellow index) of 2 to 6.5 as measured in accordance with ASTM D1925, andan impact strength at low-temperature of 600 to 1000 J/m as measured at −30° C. in accordance with ASTM D256 (⅛ inch, Notched Izod).2. The copolycarbonate of whereinthe copolycarbonate has an impact strength at room temperature of 840 to 1000 J/m as measured at 23° C. in accordance with ASTM D256 (⅛ inch, Notched Izod).3. The copolycarbonate of whereinthe copolycarbonate has a weight average molecular weight of 1,000 to 100,000 g/mol.4. The copolycarbonate of whereinthe copolycarbonate comprises two kinds of aromatic polycarbonate-based second repeating units having siloxane bonds.6. The copolycarbonate of whereinthe repeating unit represented by Chemical Formula 1 is derived from one or more aromatic diol compounds selected from the group consisting of bis(4-hydroxyphenyl)methane, bis(4-hydroxyphenyl)ether, bis(4-hydroxyphenyl)sulfone, bis(4-hydroxyphenyl)sulfoxide, bis(4-hydroxyphenyl)sulfide, bis(4-hydroxyphenyl)ketone, 1,1-bis(4-hydroxyphenyl)ethane, bisphenol A, 2,2-bis(4-hydroxyphenyl)butane, 1,1-bis(4-hydroxyphenyl)cyclohexane, 2,2-bis(4-hydroxy-3,5-dibromophenyl)propane, 2,2-bis(4-hydroxy-3,5-dichlorophenyl)propane, 2,2-bis(4-hydroxy-3-bromophenyl)propane, 2,2-bis(4-hydroxy-3-chlorophenyl)propane, 2,2-bis(4-hydroxy-3-methylphenyl)propane, 2,2-bis(4-hydroxy-3,5-dimethylphenyl)propane, 1,1-bis(4- ...

POLYCARBONATE RESIN COMPOSITION AND MOLDED ARTICLE THEREOF

Provided is a polycarbonate-based resin composition, including: 50 mass % or more to 99 mass % or less of a polycarbonate-based resin (S) containing 0.1 mass % or more to 100 mass % or less of a polycarbonate-polyorganosiloxane copolymer (A), which contains a polycarbonate block (A-1) formed of a specific repeating unit and a polyorganosiloxane block (A-2) containing a specific repeating unit, and 0 mass % or more to 99.9 mass % or less of an aromatic polycarbonate-based resin (B) except the polycarbonate-polyorganosiloxane copolymer (A); 1 mass % or more to 50 mass % or less of a polyester-based resin (C); and 0.001 part by mass or more to 1 part by mass or less of an amide compound (D) with respect to 100 parts by mass of a total amount of the polycarbonate-based resin (S) and the polyester-based resin (C). 2. The polycarbonate-based resin composition according to claim 1 , wherein the polyorganosiloxane block (A-2) has an average chain length of from 20 or more to 500 or less.3. The polycarbonate-based resin composition according to claim 1 , wherein a content of the polyorganosiloxane block (A-2) in the polycarbonate-polyorganosiloxane copolymer (A) is from 1 mass % or more to 50 mass % or less.4. The polycarbonate-based resin composition according to claim 1 , wherein a content of the polyorganosiloxane block (A-2) in the polycarbonate-based resin (S) is from 0.1 mass % or more to 10 mass % or less.5. The polycarbonate-based resin composition according to claim 1 , wherein a content of the polyorganosiloxane block (A-2) in the polycarbonate-based resin composition is from 0.1 mass % or more to 10 mass % or less.6. The polycarbonate-based resin composition according to claim 1 , wherein the polycarbonate-polyorganosiloxane copolymer (A) has a viscosity-average molecular weight (Mv) of from 9 claim 1 ,000 or more to 50 claim 1 ,000 or less.7. The polycarbonate-based resin composition according to claim 1 , wherein the polycarbonate-based resin (S) has a viscosity ...

REINFORCED POLYCARBONATE COMPOSITIONS WITH IMPROVED HEAT RESISTANCE

A reinforced polycarbonate composition includes 30-60 wt % of a homopolycarbonate; 5-30 wt % of a poly(carbonate-siloxane); 10-40 wt % of a high heat polycarbonate having a glass transition temperature of 170° C. or higher determined per ASTM D3418 with a 20° C./min heating rate; 1-10 wt % of a phosphorous-containing flame retardant present in amount effective to provide 0.1-1.5 wt % phosphorous; 0.01-0.5 wt % of an anti-drip agent; 5-30 wt % of a reinforcing fiber; and optionally, up to 10 wt % of an additive composition, wherein each amount is based on the total weight of the reinforced polycarbonate composition, which sums to 100 wt %. A molded sample of the polycarbonate composition has a heat deflection temperature greater than 115° C., preferably greater than 125° C., more preferably greater than 130° C., or a flame test rating of V1, preferably V0 as measured according to UL-94 at a thickness of 0.8 millimeter, or at a thickness of 0.6 mm, or at a thickness of 0.4 mm. 1. A reinforced polycarbonate composition comprising30-60 weight percent of a homopolycarbonate;5-30 weight percent of a poly(carbonate-siloxane), preferably present in an amount effective to provide 2-6 weight percent of siloxane;10-40 weight percent of a high heat polycarbonate having a glass transition temperature of 170° C. or higher determined per ASTM D3418 with a 20° C./min heating rate;1-10 weight percent of a phosphorous-containing flame retardant present in amount effective to provide 0.1-1.5 weight percent phosphorous;0.01-0.5 weight percent of an anti-drip agent;5-30 weight percent of a reinforcing fiber; andoptionally, up to 10 weight percent of an additive composition,wherein each amount is based on the total weight of the reinforced polycarbonate composition, which sums to 100 weight percent; and a heat deflection temperature of greater than 115° C., preferably greater than 125° C., more preferably greater than 130° C., each as measured according to ISO 75 at 0.45 megapascal, or', ...

Siloxane-containing polymers

The properties of polymeric compositions can be improved by the presence of a polysiloxane unit of formula ##STR1## where Q is a substituted or unsubstituted aromatic group, Z is ##STR2## D is unsubstituted or substituted hydrocarbylene R 1 , R 2 , R 3 , R 4 , R 5 and R 6 each, independently, is unsubstituted or substituted hydrocarbyl. x, y and z each independently has a value from 0 to 100. Polyimides containing these units display improved solubility and adhesion; they are useful, among other things, as protective coatings.

光敏的防反射底面涂层

提供防反射组合物以及使用这些组合物形成电路的方法。所述组合物包含溶于或分散于溶剂系统中的聚合物。优选的聚合物包括聚碳酸酯类、聚磺酸酯类、聚碳酸酯-砜类以及它们的混合物。所述组合物可以施涂到硅片或其它基材上，形成开始时不溶于一般光致抗蚀剂显影溶液中的固化或硬化层。当暴露到光中时，所述固化或硬化的层在光致抗蚀剂显影溶液中变得可溶，使所述层和显影的光致抗蚀剂层一起选择性除去，由此取消单独的除去步骤。

Methods and materials for fabrication of alumoxane polymers

A composition of matter, comparising: a chemically functionalized carboxylate-alumoxane that is functionalized with a chemically reactive substituent, and a reactive compound, wherein the chemically reactive substituent reacts with the reactive compound so as to link the carboxylate-alumoxnae to the reactive compound and form a polymer matrix. The functional groups on the carboxylate-alumoxane can vary depending on the desired properties of the matrix. Also, the composition of matter may comprise a cross-linked matrix in which the cross-linked components consist of functionalized alumoxanes.

Bimetallic zinc complexes and process of producing polycarbonate using the same as polymerization catalysts

본 발명은 신규한 이중 금속 아연 착화합물 및 이를 촉매로 사용하여 에폭시 화합물과 이산화탄소를 공중합하여 폴리카보네이트를 제조하는 방법에 관한 것이다. The present invention relates to a novel double metal zinc complex and a method for producing a polycarbonate by copolymerizing an epoxy compound and carbon dioxide using the catalyst as a catalyst. 본 발명에 따르면, 상기 촉매가 에폭시 화합물과 이산화탄소를 공중합하는 중합 반응의 매질 내에서 그 농도에 관계없이 아연-아연 원자간 거리를 일정한 범위 내에서 유지되어 단량체/촉매 비율이 높은 조건에서도 중합활성을 나타내므로, 촉매의 사용량을 줄일 수 있어 경제적인 이득이 있을 뿐만 아니라, 고분자량의 폴리카보네이트를 제공할 수 있다. According to the present invention, the catalyst maintains the zinc-zinc atom distance within a certain range regardless of its concentration in the polymerization medium in which the epoxy compound and the carbon dioxide are copolymerized to maintain the polymerization activity even under a high monomer / catalyst ratio. As a result, the amount of catalyst used can be reduced, and economical benefits can be obtained, and a high molecular weight polycarbonate can be provided. 이중 금속 아연 착화합물, 폴리카보네이트 Double metal zinc complex, polycarbonate

Ring-opening polymerizations using a flow reactor

Techniques regarding the synthesis of one or more polymers through one or more ring-opening polymerizations conducted within a flow reactor and facilitated by one or more anionic catalysts are provided. For example, one or more embodiments can comprise a method, which can comprise functionalizing, via a post-polymerization reaction within a flow reactor, a chemical compound by covalently bonding a trimethylsilyl protected thiol to a pendent functional group of the chemical compound in a presence of a catalyst. The pendent functional group can comprise a perfluoroaryl group and a methylene group.

光敏的防反射底面涂层

提供防反射组合物以及使用这些组合物形成电路的方法。所述组合物包含溶于或分散于溶剂系统中的聚合物。优选的聚合物包括聚碳酸酯类、聚磺酸酯类、聚碳酸酯－砜类以及它们的混合物。所述组合物可以施涂到硅片或其它基材上，形成开始时不溶于一般光致抗蚀剂显影溶液中的固化或硬化层。当暴露到光中时，所述固化或硬化的层在光致抗蚀剂显影溶液中变得可溶，使所述层和显影的光致抗蚀剂层一起选择性除去，由此取消单独的除去步骤。

一种高折射率、高流动性的共聚碳酸酯

本发明涉及一种具有高折射率、高流动性的共聚碳酸酯，包含如下结构：来自含有联萘酮结构的化合物 的结构单元，来自含有多苯环结构的化合物

1,3-bis (hydroxyaryl) tetraorganodisiloxanes and processes for their preparation

Oligo-and poly-carbonates terminated with silicon containing groups as surface modifiers

The instant invention relates to new compounds of the formula I wherein the general symbols are as defined in claim 1 and R 1 and R 2 are each independently of the other a silicon containing group. These new compounds of the formula I are useful as reducers of surface energy for organic materials such as polycarbonates, polyesters or polyketones or their mixtures, blends or alloys. Polymers with such a reduced surface energy possess an “easy to clean”, “self-cleaning” “antisoiling”, “soil-release” “antigraffiti”, “oil resistance”, “solvent resistance”, “chemical resistance”, “self lubricating”, “scratch resistance”, “low moisture absorption”, “dirt pickup resistance”, “slip properties” and “hydrophobic surface”; and antiadhesion properties against proteins and against microorganism such as for example bacteria, fungi and algae.

Polycarbonate resin composition and molded article thereof

本发明涉及一种聚碳酸酯类树脂组合物及其成型制品，更具体地，涉及一种显示出低变形性、优异的抗冲击强度、优异的外观表面特性以及优异的阻燃性的聚碳酸酯类树脂组合物，以及以此形成的成型制品。

Polycarbonate and method for preparing the same

본 발명은 기계적 물성이 우수하면서도, 내후성과 굴절률이 향상된 신규한 구조의 폴리카보네이트 및 이의 제조방법에 관한 것이다. The present invention relates to a polycarbonate having a novel structure having excellent mechanical properties and improved weather resistance and refractive index, and a method for manufacturing the same.

Copolycarbonate and composition containing the same

본 발명은 코폴리카보네이트 및 이를 포함하는 조성물에 관한 것으로, 본 발명에 따른 코폴리카보네이트는 특정 실록산 화합물을 폴리카보네이트 주쇄에 도입한 구조를 가져, 상온충격강도와 저온충격강도의 차이가 적어 내충격성이 우수하다는 특징이 있다. The present invention relates to a copolycarbonate and a composition comprising the same, wherein the copolycarbonate according to the present invention has a structure in which a specific siloxane compound is introduced into a polycarbonate main chain and has a low impact strength at room temperature and a low temperature impact strength, Is excellent.

Copolycarbonate resin composition and article comprising same

Copolycarbonate composition and article comprising same

Polycarbonate and optical elements comprising the same

본 발명은 높은 굴절률 및 우수한 투명도를 가지며, 내열성이 우수하고, 열가소성을 나타내어 압출 및 사출이 가능한, 고굴절 광학 소재로서 적합하게 사용될 수 있는 폴리카보네이트 및 이를 포함한 광학 소자에 관한 것이다.

Polycarbonate resin composition having high melting flow property and process for preparing thereof

본 발명은 유동성이 우수한 폴리카보네이트 수지 조성물 및 그의 제조방법에 관한 것으로서, 보다 구체적으로 점도평균분자량이 3,000 ~ 6,000이고 분자량 조절제로 양 말단이 캡핑(capping)된 폴리카보네이트 올리고머 4~ 18 중량부; 및 점도평균분자량이 13,000 ~ 35,000인 하나 이상의 폴리카보네이트를 82~96 중량부로 포함하는 점도평균 분자량이 15,000 ~ 30,000인 고유동 폴리카보네이트 수지 조성물 및 그 제조 방법에 관한 것이다. The present invention relates to a polycarbonate resin composition excellent in fluidity and a method for producing the same, more specifically 4 to 18 parts by weight of a polycarbonate oligomer having a viscosity average molecular weight of 3,000 to 6,000 and capped at both ends with a molecular weight regulator; And it relates to a high flow polycarbonate resin composition having a viscosity average molecular weight of 15,000 to 30,000 comprising 82 to 96 parts by weight of at least one polycarbonate having a viscosity average molecular weight of 13,000 to 35,000 and a method for producing the same. 본 발명에 따른 수지 조성물은 일반 폴리카보네이트에 비하여 우수한 유동성을 나타내어 박막 성형에 유용하게 이용할 수 있으며, 가공온도가 20℃ 이상 낮아 생산성 및 작업성이 우수하다. The resin composition according to the present invention exhibits excellent fluidity compared to general polycarbonate and can be usefully used for thin film molding, and has a low processing temperature of 20 ° C. or higher, thereby providing excellent productivity and workability. 폴리카보네이트, 유동성, 광학용 디스크 Polycarbonate, Flowable, Optical Discs

Polycarbonate and molded article formed therefrom

본 발명은 폴리카보네이트 및 이로부터 형성된 성형품에 관한 것이다. 상기 폴리카보네이트는 내충격성 특히 저온 내충격성이 우수하며, 내후성이 우수하다. 이에 따라, 상기 폴리카보네이트를 이용하면 극한의 환경에서도 물성 변화가 없는 자동차 외장 소재를 제공할 수 있을 것으로 기대된다.

Polycarbonate resin composition

本发明涉及一种聚碳酸酯树脂组合物，该聚碳酸酯树脂组合物能够提高聚碳酸酯的主链中引入聚硅氧烷结构的共聚碳酸酯的熔融性能。本发明的聚碳酸酯树脂组合物包含聚碳酸酯和共聚碳酸酯，且因此可以在使共聚碳酸酯的物理性能保持在最大化的同时提高熔融性能。

Novel polyorganosiloxane, and copolycarbonate prepared by using the same

본 발명은 폴리카보네이트 수지 고유의 물성을 유지하면서도, 내후성과 유동성이 향상된 코폴리카보네이트를 제조할 수 있는 신규한 폴리오르가노실록산 및 이를 사용하여 제조되는 코폴리카보네이트에 관한 것이다. The present invention relates to novel polyorganosiloxanes capable of producing copolycarbonates having improved weatherability and fluidity while maintaining the inherent physical properties of polycarbonate resins, and copolycarbonates prepared using the same.

Polycarbonate and method for preparing the same

본 발명에서는 우수한 내후성을 나타내는, 신규한 구조의 폴리카보네이트 및 이의 제조방법이 제공된다. The present invention provides a polycarbonate having a novel structure, which exhibits excellent weather resistance, and a method for manufacturing the same.

Copolycarbonate and the composition containing the Copolycarbonate

本发明涉及一种共聚碳酸酯和包含该共聚碳酸酯的组合物。根据本发明的共聚碳酸酯具有特定的硅氧烷化合物引入该聚碳酸酯的主链中的结构，因此具有同时提高低温冲击强度、YI(黄度指数)和熔体指数的效果。

Copolycarbonate and polycarbonate composition comprising the same

본 발명은 코폴리카보네이트 및 이를 포함하는 폴리카보네이트 조성물에 관한 것이다. 상기 코폴리카보네이트는 내충격성 특히 저온 내충격성이 우수하며, 내후성이 우수하다. 이에 따라, 상기 코폴리카보네이트를 이용하면 극한의 환경에서도 물성 변화가 없는 자동차 외장 소재를 제공할 수 있을 것으로 기대된다. The present invention relates to a copolycarbonate and a polycarbonate composition comprising the same. The copolycarbonate has excellent impact resistance, particularly low-temperature impact resistance, and excellent weather resistance. Accordingly, it is expected that the use of the copolycarbonate can provide an automobile exterior material having no change in physical properties even in extreme environments.

Copolycarbonate and article containing the same

본 발명은 코폴리카보네이트 및 이를 포함하는 성형품에 관한 것으로, 본 발명에 따른 코폴리카보네이트는 특정 실록산 화합물을 폴리카보네이트 주쇄에 도입한 구조를 가져, 높은 상온충격강도를 가지면서도 우수한 투명도와 높은 Spiral 유동성을 나타낸다는 특징이 있다.

Polycarbonate based resin composition and molded articles thereof

본 발명은 폴리카보네이트계 수지 조성물 및 이의 성형품에 관한 것으로, 보다 구체적으로, 충격강도 및 흐름성(유동성) 등이 개선된 폴리카보네이트계 수지 조성물 및 이의 성형품에 관한 것이다. The present invention relates to a polycarbonate resin composition and a molded article thereof, and more specifically, to a polycarbonate resin composition and its molded article improved in impact strength and flowability (fluidity).

Copolycarbonate and resin compositin comprising the same

본 발명은 상온 및 저온충격강도가 우수하게 유지되면서도 내화학성이 향상된 코폴리카보네이트 및 이를 포함하는 폴리카보네이트 수지 조성물에 관한 것이다. The present invention relates to a copolycarbonate having improved chemical resistance while maintaining excellent impact strength at room temperature and low temperature, and a polycarbonate resin composition comprising the same.

Polycarbonate polymer

一种聚碳酸酯聚合物，其特征在于，含有下述式(1A)所示的单体单元和下述式(2)所示的单体单元而构成，以10质量％的浓度将该聚碳酸酯聚合物溶解在THF(四氢呋喃)中得到的溶液的雾度(以JIS K7105为基准、光路长10mm)为5％以下。【化1】 (式(1A)中，R及R’各自独立地表示氢原子、卤原子、碳原子数1～12的烷基或碳原子数6～12的取代或无取代的芳基。n1是2～4的整数、n2是25～220的整数。)【化2】

Polycarbonate-Based Resin, Production Process Therefor, and Polycarbonate-Based Resin Composition

Angegeben wird ein Polycarbonat-basiertes Harz mit einem Verhältnis eines Aminendes zu allen Endgruppen von 1,0 Mol% oder mehr. Specified is a polycarbonate-based resin having a ratio of an amine end to all end groups of 1.0 mol% or more.

Modified polycarbonates, polyester carbonates and polyesters with improved extensibility and flame retardancy

Die vorliegende Erfindung betrifft Polycarbonat, Polyestercarbonat und Polyester mit Alkylsiloxan-substituierten Phenolen abgeleiteten Endgruppen sowie die Verwendung von phenolischen Verbindungen mit Alkylsiloxan-Substituenten als Kettenabbrecher zur Herstellung von Polycarbonaten, Polyestercarbonaten und Polyestern sowie Formteile und Extrudate aus diesen Polymeren, Verfahren zur Herstellung der Polymere sowie neue phenolische Verbindungen der Formel (2). The present invention relates to polycarbonate, polyester carbonate and polyester with alkylsiloxane-substituted phenols derived end groups and the use of phenolic compounds having alkylsiloxane substituents as chain terminators for the production of polycarbonates, polyester and polyesters, and molded parts and extrudates of these polymers, processes for preparing the polymers and new phenolic compounds of formula (2).

Processes for the production of polycarbonate

Provided are a method for producing polycarbonates through melt transesterification, wherein is used a polymerization catalyst comprising a phosphorus-containing basic compound and a quaternary phosphonium salt having a specific structure; and a method for producing polycarbonates, which comprises pre-polymerization to prepare polycarbonate prepolymers followed by final polymerization of said prepolymers in a solid phase or in a swollen solid phase to produce the products, polycarbonates, and in which (1) a catalyst comprising a phosphorus-containing basic compound and a quaternary phosphonium salt having a specific structure is used in the pre-polymerization and in the final polymerization, or (2) a catalyst of a tri-valent or penta-valent phosphorus compound or a nitrogen-containing organic basic compound is used in the final polymerization, or (3) the final polymerization is effected in a vapor-phase atmosphere having an oxygen concentration of not larger than 2 ppm. In those methods, high-quality polycarbonates having good appearance, high heat resistance and high hydrolysis resistance are produced extremely efficiently.

Modified polycarbonates, polyester carbonates and polyesters having improved elongation behavior and flame resistance

The present invention relates to polycarbonate, polyester carbonate and polyester having end groups derived from alkylsiloxane-substituted phenols, as well as to the use of phenolic compounds having alkylsiloxane substituents as chain terminators in the preparation of polycarbonate, polyester carbonate and polyester, as well as to mouldings and extrudates produced from these polymers, to processes for the preparation of the polymers, and to novel phenolic compounds of formula (2).

Copolycarbonate and optical lens

本发明的目的在于提供一种折射率高、双折射量小、加工性、透明性优异的共聚碳酸酯及由其形成的光学透镜。本发明为一种共聚碳酸酯，所述共聚碳酸酯中下述式(I)表示的单元以及下述式(II)表示的单元的总和为全部重复单元的80摩尔％以上，并且式(I)表示的单元与式(II)表示的单元的摩尔比为98∶2～35∶65的范围。(式中，R1、R2、R3及R4各自独立为氢原子、碳原子数1～20的烷基等。X为碳原子数2～8的亚烷基等。m及n各自独立为1～10的整数。)(式中，R5、R6、R7以及R8各自独立为氢原子、碳原子数1～20的烷基等。)

Copolycarbonate composition and article containing the same

본 발명은 특정 실록산 화합물을 폴리카보네이트 주쇄에 도입한 코폴리카보네이트와 UV 안정화제를 포함하는 코폴리카보네이트 수지 조성물에 관한 것으로, 내후성이 우수하여 이를 이용하여 제조된 제품은 외부에 노출되어 자외선 등에 의한 표면 품질 저하 및 물성의 저하가 적다는 특징이 있다. The present invention relates to a copolycarbonate resin composition comprising a specific siloxane compound introduced into a polycarbonate main chain and a UV stabilizer. The product is excellent in weatherability and a product produced by using the same is exposed to the outside, There is a feature that surface quality deterioration and physical property deterioration are small.

Polycarbonate resin composition

一种聚碳酸酯树脂组合物，其是相对于芳香族聚碳酸酯树脂(A)100质量份，含有具有芳基的磷系化合物(B)0.005～1质量份、和具有特定的聚氧化亚烷基结构的聚醚化合物(C)0.005～5质量份的聚碳酸酯树脂组合物，上述磷系化合物(B)在40℃、湿度90％的条件下放置时1500小时后分解而产生的具有酚结构的化合物的量相对于上述磷系化合物(B)为5质量％以下，上述磷系化合物(B)在氮气氛下使用差示热‑热重测定机测定重量的情况下从测定前的重量减少2％的重量的温度为340℃以上。

Copolycarbonate resin composition and article comprising same

本发明涉及一种具有提高的机械性能如耐化学性和抗冲击性同时保持树脂流动性的共聚碳酸酯树脂组合物，以及包含该共聚碳酸酯树脂组合物的制品。

Copolycarbonate and composition containing the same

본 발명은 코폴리카보네이트 및 이를 포함하는 조성물에 관한 것으로, 코폴리카보네이트 구조에 분지형 반복 단위를 포함함으로써, 코폴리카보네이트 본연의 충격강도 및 유동성은 유지하면서 난연성 및 내화학성을 향상시키는 기술에 관한 것이다. The present invention relates to a copolycarbonate and a composition comprising the same, and more particularly to a technique for improving the flame retardancy and chemical resistance while maintaining the inherent impact strength and flowability of the copolycarbonate by including a branched repeating unit in the copolycarbonate structure will be.

Polycarbonate based resin composition and molded articles thereof

본 발명은 폴리카보네이트계 수지 조성물 및 이의 성형품에 관한 것으로, 보다 구체적으로, 낮은 변형 특성, 우수한 충격 강도 및 외관의 표면 특성과, 우수한 난연성을 나타내는 폴리카보네이트계 수지 조성물과 이로부터 형성된 성형품에 관한 것이다. More particularly, the present invention relates to a polycarbonate resin composition exhibiting low deformation characteristics, excellent impact strength and surface characteristics of appearance, and excellent flame retardancy, and a molded article formed from the polycarbonate resin composition .

Method for preparing polycarbonate-co-siloxane

본 발명은 고분자량의 실록산계 코폴리카보네이트 수지의 제조방법에 관한 것으로, 보다 상세하게는 고분자량의 실록산계 코폴리카보네이트 수지의 제조에 있어서 축합중합 단계를 도입함으로써 에스테르 교환반응 결과 수득한 중합도 3미만의 반응 부산물의 말단기 및 미반응 디아릴카보네이트 내에 존재하는 알릴카보네이트의 몰분율을 낮추어 고상중합 후 실록산계 코폴리카보네이트의 분자량 증가를 극대화할 수 있을 뿐만 아니라, 동일한 분자량의 실록산계 코폴리카보네이트를 제조하는데 소요되는 시간을 현저히 단축시킬 수 있고, 유독 물질인 포스겐을 사용하지 않아 위험성이 없으며, 품질 저하를 방지할 수 있는 효과가 있다. The present invention relates to a method for preparing a high molecular weight siloxane copolycarbonate resin, and more particularly, to a polymerization degree obtained by a transesterification reaction by introducing a condensation polymerization step in the preparation of a high molecular weight siloxane copolycarbonate resin. By lowering the mole fraction of allyl carbonate present in the end groups of the reaction by-products below and unreacted diaryl carbonate, the molecular weight increase of the siloxane copolycarbonate after solid phase polymerization can be maximized. It can significantly shorten the time required to manufacture, there is no risk because phosgene is not used as a toxic substance, there is an effect that can prevent the degradation of quality. 실록산계 코폴리카보네이트, 에스테르 교환반응, 축합중합, 결정화, 고상중합 Siloxane copolycarbonate, transesterification, condensation polymerization, crystallization, solid phase polymerization

Polycarbonate resin composition and molded article containing the same

Copolycarbonate and polycarbonate composition comprising the same

본 발명은 코폴리카보네이트 및 이를 포함하는 폴리카보네이트 조성물에 관한 것이다. 상기 코폴리카보네이트는 내충격성 특히 저온 내충격성이 우수하며, 내후성이 우수하다. 이에 따라, 상기 코폴리카보네이트를 이용하면 극한의 환경에서도 물성 변화가 없는 자동차 외장 소재를 제공할 수 있을 것으로 기대된다.

Low endocrine disruptor polycarbonate resin

A polycarbonate resin causing low endocrine disruption obtainable by reaction of a carbonic acid ester-forming compound with bisphenols consisting essentially of 9,9- bis (4-hydroxy-3-methylphenyl) fluorene and a bisphenol compound(s) having a polysiloxane skeleton, the intrinsic viscosity of said polycarbonate resin being 0.2 to 2.0 dl/g.

Polycarbonate resin having amine resistance

本发明涉及耐胺性优异的聚碳酸酯共聚物或共聚聚碳酸酯混合物，作为主要构成单元，由构成单元(A)、构成单元(B)和构成单元(C)构成，(A)：由下述式(1)表示的构成单元(A)(式(1)中，R 1 ～R 2 各自独立地为氢原子、可包含芳香族基团的碳原子数1～9的烃基或卤素原子)，(B)：由下述式(2)表示的构成单元(B)(式(2)中，R 3 ～R 4 各自独立地为碳原子数1～6的烷基或卤素原子。X为单键、取代或未取代的亚烷基、取代或未取代的烷叉基、硫原子或氧原子)，(C)：由下述式(3)表示的构成单元(C)(式(3)中，W表示单键、取代或未取代的亚烷基、取代或未取代的烷叉基、硫原子或氧原子)，全部构成单元中的构成单元(A)的比例为5～15摩尔％，构成单元(B)的比例为20～60摩尔％，构成单元(C)的比例为25～75摩尔％，该聚碳酸酯共聚物或共聚聚碳酸酯混合物的耐划伤性、耐冲击性、耐热性、耐胺性优异。

Method for manufacturing polycarbonate resin