METHOD FOR PRODUCING POLYCARBONATE-POLYORGANOSILOXANE COPOLYMER

A method for producing a polycarbonate-polyorganosiloxane copolymer which has a step (Q) for reacting a polycarbonate oligomer and one or more types of polyorganosiloxane represented by general formulas (i)-(iii) in an organic solvent, and is characterized in that during said step, the following sat...

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Bibliographic Details
Main Authors KOORI, Yohei, ABE, Tomoko, NAKAGAWA, Masaru, ISHIKAWA, Yasuhiro
Format Patent
LanguageEnglish
French
Japanese
Published 02.03.2017
Subjects
CHEMISTRY
COMPOSITIONS BASED THEREON
COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
METALLURGY
ORGANIC MACROMOLECULAR COMPOUNDS
THEIR PREPARATION OR CHEMICAL WORKING-UP
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Summary:A method for producing a polycarbonate-polyorganosiloxane copolymer which has a step (Q) for reacting a polycarbonate oligomer and one or more types of polyorganosiloxane represented by general formulas (i)-(iii) in an organic solvent, and is characterized in that during said step, the following satisfy specific conditions: the solid content weight x (g/L) of the polycarbonate oligomer in a 1-liter liquid mixture comprising the organic solvent and the polycarbonate oligomer; the concentration y (mass%) of the polyorganosiloxane in the obtained polycarbonate-polyorganosiloxane copolymer; and the chain length n of the polyorganosiloxane. L'invention concerne un procédé de production d'un copolymère de polycarbonate-polyorganosiloxane qui comporte une étape (Q) consistant à faire réagir un oligomère de polycarbonate et un ou plusieurs types de polyorganosiloxane représentés par les formules générales (i) à (iii) dans un solvant organique. Ce procédé est caractérisé en ce que pendant ladite étape, les éléments suivants respectent des conditions spécifiques : le poids de la teneur en matières solides x (g/L) de l'oligomère de polycarbonate dans un 1 litre de mélange liquide comprenant le solvant organique et l'oligomère de ; la concentration y (% en poids) en polyorganosiloxane du copolymère de polycarbonate-polyorganosiloxane obtenu ; et la longueur de chaîne n du polyorganosiloxane. ポリカーボネートオリゴマーと、下記一般式（ｉ）～（ｉｉｉ）で表されるポリオルガノシロキサンの少なくとも１種とを有機溶媒中で反応させる工程（Ｑ）を有し、該工程において、前記有機溶媒とポリカーボネートオリゴマーとの混合溶液１Ｌ中におけるポリカーボネートオリゴマーの固形分重量ｘ（ｇ／Ｌ）と、得られるポリカーボネート－ポリオルガノシロキサン共重合体中のポリオルガノシロキサンの濃度ｙ（質量％）と、ポリオルガノシロキサンの鎖長ｎとが特定の条件を満たすことを特徴とする、ポリカーボネート－ポリオルガノシロキサン共重合体の製造方法
Bibliography:Application Number: WO2016JP75202