Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
POLYCARBONATE-POLYDIORGANOSILOXANE COPOLYMER, RESIN COMPOSITION OF POLYCARBONATE-POLYDIORGANOSILOXANE COPOLYMER, AND PRODUCTION METHOD FOR RESIN COMPOSITION OF POLYCARBONATE-POLYDIORGANOSILOXANE COPOLYMER
Document Type and Number:
WIPO Patent Application WO/2019/124556
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide: a polycarbonate-polydiorganosiloxane copolymer or a resin composition thereof that has excellent impact resistance, and, in particular, excellent impact resistance at extremely low temperatures, as well as excellent chemical resistance; and a production method for the resin composition. This copolymer or resin composition thereof includes a polycarbonate-polydiorganosiloxane copolymer and an optional polycarbonate resin. The copolymer includes a polycarbonate block (A-1) and a polydiorganosiloxane block (A-2). The polydiorganosiloxane block (A-2) content of the copolymer or resin composition thereof is 2.5–8.0 wt%. The copolymer or resin composition thereof satisfies (i) and (ii): (i) in a cross-sectional observation image of the copolymer or resin composition thereof that is generated using an electron beam microscope, there are 1–20 domains that have a longest diameter of at least 80 nm in an area that is 850 nm square (722,500 nm2); and (ii) average domain size is 30–100 nm.

Inventors:
KIMURA TAICHI (JP)
TANDO KAZUSHI (JP)
ODA KOJI (JP)
Application Number:
PCT/JP2018/047367
Publication Date:
June 27, 2019
Filing Date:
December 21, 2018
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
TEIJIN LTD (JP)
International Classes:
C08G64/18; C08L69/00
Domestic Patent References:
WO2016088861A12016-06-09
WO2013073709A12013-05-23
WO1991000885A11991-01-24
WO2011013846A12011-02-03
Foreign References:
JP2011173989A2011-09-08
JP2006523243A2006-10-12
JP2011046913A2011-03-10
JP2011159340A2011-08-18
JP2014080496A2014-05-08
JP2015163722A2015-09-10
JPH05186675A1993-07-27
JPH05247195A1993-09-24
JP2662310B21997-10-08
JP2012246430A2012-12-13
JP2006523243A2006-10-12
JP2015163722A2015-09-10
JPH05189975A1993-07-30
JP2005263908A2005-09-29
JP2004027113A2004-01-29
US4379910A1983-04-12
JPS60258263A1985-12-20
JPS63154744A1988-06-28
JPH04272957A1992-09-29
JPH06220210A1994-08-09
JPH08188653A1996-07-23
JPH0995583A1997-04-08
JPH1129679A1999-02-02
JPH07233160A1995-09-05
Other References:
See also references of EP 3730534A4
Attorney, Agent or Firm:
AOKI, Atsushi et al. (JP)
Download PDF:
View/Download PDF      PDF Help



 
Previous Patent: SWITCHING POWER SUPPLY DEVICE

Next Patent: CROSS-IMMUNIZING ANTIGEN VACCINE AND METHOD FOR PREPARATION THEREOF