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Title:
POLYCARBONATE-POLYORGANOSILOXANE COPOLYMER
Document Type and Number:
WIPO Patent Application WO/2021/132590
Kind Code:
A1
Abstract:
A polycarbonate-polyorganosiloxane copolymer including a polycarbonate block (A-1) formed of a repeating unit having a specific structure and a polyorganosiloxane block (A-2) formed of a repeating unit having a specific structure, wherein a difference Δhaze between a haze value (haze A) and a haze value (haze B), which are respectively obtained when the polycarbonate-polyorganosiloxane copolymer or a resin composition thereof is kept at 300°C or 340°C for 3 minutes and 20 minutes, is less than 0.4.

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Inventors:
ISHIKAWA YASUHIRO (JP)
WATANABE HAJIME (JP)
YAMADA AKI (JP)
Application Number:
PCT/JP2020/048801
Publication Date:
July 01, 2021
Filing Date:
December 25, 2020
Export Citation:
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Assignee:
IDEMITSU KOSAN CO (JP)
International Classes:
C08G64/18; C08G77/448
Domestic Patent References:
WO2014157681A12014-10-02
WO2011071128A12011-06-16
WO2002004545A12002-01-17
Foreign References:
JP2019044129A2019-03-22
JP2010248413A2010-11-04
JPH0873741A1996-03-19
JP2005520922A2005-07-14
JP2000026737A2000-01-25
JPH1017670A1998-01-20
JPH11130865A1999-05-18
JP2662310B21997-10-08
JP5919294B22016-05-18
JP2014080462A2014-05-08
Attorney, Agent or Firm:
OHTANI PATENT OFFICE (JP)
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