公开(公告)号：US09080021B2

公开(公告)日：2015-07-14

申请号：US14352889

申请日：2012-10-15

Applicant: IDEMITSU KOSAN CO., LTD.

Inventor： Yasuhiro Ishikawa ,  Yukiko Nagao ,  Hiroaki Motegi

IPC: C08G64/00 ,  C08G77/60 ,  C08L69/00 ,  C08G64/18 ,  C08G77/448 ,  C08G63/02

CPC classification number: C08G77/60 ,  C08G64/186 ,  C08G77/448 ,  C08L69/00 ,  C08L2205/02 ,  C08L83/10

Abstract: Provided is a polycarbonate-polyorganosiloxane copolymer having high impact resistance and excellent transparency, in particular, a high total light transmittance and a small haze, and a method of producing thereof. Specifically, provided is a polycarbonate-polyorganosiloxane copolymer, containing a main chain having a repeating unit represented by the following general formula (I) and a constituent unit represented by the following general formula (II), in which: n in the general formula (II) is 25 to 50; and the copolymer satisfies the following conditions (a) and (b): (a) a molded article having a thickness of 2 mm made of the copolymer has a total light transmittance measured based on ISO 13468 of 88% or more and a haze measured based on ISO 14782 of 0.7% or less; and (b) a molded article having a thickness of 3 mm made of the copolymer has a total light transmittance measured based on ISO 13468 of 88% or more and a haze measured based on ISO 14782 of 1.0% or less. (In the formulae, R1 and R2 each independently represent a halogen atom, an alkyl group or an alkoxy group, X represents a single bond, an alkylene group, an alkylidene group, a cycloalkylene group, a cycloalkylidene group, —S—, —SO—, —SO2—, —O— or —CO—, and a and b each independently represent an integer of 0 to 4. R3 to R6 each independently represent a hydrogen atom, a halogen atom, an alkyl group, an alkoxy group or an aryl group, Y represents a single bond, or an organic residue containing an aliphatic or aromatic moiety, and n represents an average repetition number.)

Abstract translation: 提供了具有高耐冲击性和优异透明性，特别是高全光线透射率和小雾度的聚碳酸酯 - 聚有机硅氧烷共聚物及其制造方法。 具体地说，提供了含有具有下述通式（I）表示的重复单元的主链和下述通式（II）表示的结构单元的聚碳酸酯 - 聚有机硅氧烷共聚物，其中，通式（ II）为25〜50; 共聚物满足以下条件（a）和（b）：（a）由共聚物制成的厚度为2mm的模塑制品具有基于ISO 13468测定的总光线透射率为88％以上，并且测量到雾度 基于ISO 14782 0.7％以下; 和（b）由共聚物制成的厚度为3mm的模塑制品具有基于ISO 13468测量的总透光率为88％以上，基于ISO 14782测定的雾度为1.0％以下。 （式中，R 1和R 2各自独立地表示卤原子，烷基或烷氧基，X表示单键，亚烷基，亚烷基，亚环烷基，亚环烷基，-S - ， - SO - ， - SO 2 - ， - O-或-CO-，a和b各自独立地表示0〜4的整数。R3〜R6各自独立地表示氢原子，卤素原子，烷基，烷氧基 或芳基，Y表示单键，或含有脂族或芳族部分的有机残基，n表示平均重复数）。

公开(公告)号：US09045586B2

公开(公告)日：2015-06-02

申请号：US14362375

申请日：2012-11-16

Applicant: IDEMITSU KOSAN CO., LTD.

Inventor： Yasuhiro Ishikawa ,  Hiroaki Motegi ,  Yukiko Nagao

IPC: C08F283/02 ,  C08G64/06 ,  C08G64/28 ,  C08G77/448 ,  C08G64/18 ,  C08G64/24

CPC classification number: C08G64/06 ,  C08G64/186 ,  C08G64/24 ,  C08G64/28 ,  C08G77/448

Abstract: The present invention provides a method for producing a polycarbonate-polyorganosiloxane copolymer economically and stably, in particular, the present invention is concerned with a method for continuous production of a polycarbonate-polyorganosiloxane copolymer including (A) a step of withdrawing a polymerization reaction solution obtained by polymerizing a dihydric phenol compound, a carbonate precursor, and a polyorganosiloxane in the presence of an alkaline compound aqueous solution and a water-insoluble organic solvent continuously or intermittently from a reactor; (B) a step of separating the polymerization reaction solution withdrawn in the step (A) into an aqueous phase and a water-insoluble organic solvent phase; and (C) a step of after washing the water-insoluble organic solvent phase separated in the step (B) with an acidic aqueous solution, separating the resultant into an aqueous phase and a water-insoluble organic solvent phase, wherein the aqueous phase separated in the step (C) is extracted with a water-insoluble organic solvent, the content of the polycarbonate-polyorganosiloxane copolymer in the obtained extract is controlled to not more than 2% by mass, and a part or the whole of the extract is reused for the step (A).

Abstract translation: 本发明提供了一种经济，稳定地制备聚碳酸酯 - 聚有机硅氧烷共聚物的方法，特别是本发明涉及连续制备聚碳酸酯 - 聚有机硅氧烷共聚物的方法，其包括（A）取出获得的聚合反应溶液的步骤 通过在反应器中连续或间歇地在碱性化合物水溶液和水不溶性有机溶剂的存在下聚合二元酚化合物，碳酸酯前体和聚有机硅氧烷; （B）将步骤（A）中取出的聚合反应溶液分离成水相和水不溶性有机溶剂相的步骤; 和（C）用酸性水溶液洗涤步骤（B）中分离出的水不溶性有机溶剂相的步骤，将所得物分离成水相和水不溶性有机溶剂相，其中水相分离 在步骤（C）中用水不溶性有机溶剂萃取，将得到的提取物中的聚碳酸酯 - 聚有机硅氧烷共聚物的含量控制在2质量％以下，将部分或全部提取物再利用 步骤（A）。