Title:
NORBORNENE-BASED POLYMER SOLUTION AND METHOD FOR PRODUCING INSULATION COATING FILM
Document Type and Number:
Japanese Patent JP2016037577
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a solution containing a norbornene-based polymer having a high glass transition temperature, and also a low relative dielectric constant and a low dielectric loss tangent.SOLUTION: The norbornene-based polymer solution comprises a norbornene-based polymer of norbornene and an α-olefin, and a solvent. In the norbornene-based polymer solution, the norbornene-based polymer has a glass transition temperature of 240°C or more and 310°C or less, and a polystyrene-equivalent weight average molecular weight of 5,000 or more and 300,000 or less as measured by gel permeation chromatography. Viscosity of a 20 wt.% solution when the 20 wt.% solution obtained by dissolving the norbornene-based polymer in p-menthane is left for 24 hours at 23°C, is 31,000 mPa s or less. The norbornene-based polymer has a relative dielectric constant of 2.3 or less at 5 GHz and a dielectric loss tangent of 4.0×10or less.SELECTED DRAWING: None
Inventors:
SERIZAWA HAJIME
YAEGASHI NORIYUKI
UMEMOTO KOICHI
OKANO YOSHIMICHI
YAEGASHI NORIYUKI
UMEMOTO KOICHI
OKANO YOSHIMICHI
Application Number:
JP2014162979A
Publication Date:
March 22, 2016
Filing Date:
August 08, 2014
Export Citation:
Assignee:
POLYPLASTICS CO
DAICEL CORP
DAICEL CORP
International Classes:
C08L45/00; B05D1/40; B05D7/24; C08F232/08; C08J5/18
Domestic Patent References:
| JP2009298999A | 2009-12-24 | |||
| JP2015218275A | 2015-12-07 | |||
| JP2015118916A | 2015-06-25 | |||
| JP2007119660A | 2007-05-17 | |||
| JPH11111061A | 1999-04-23 | |||
| JP2005511870A | 2005-04-28 |
Foreign References:
| WO2014141957A1 | 2014-09-18 |
Attorney, Agent or Firm:
Masayuki Masabayashi
Hayashi Ichiyoshi
Hayashi Ichiyoshi