Title:
HOLLOW PARTICLES
Document Type and Number:
WIPO Patent Application WO/2022/107674
Kind Code:
A1
Abstract:
Provided are hollow particles having exceptional performance stability in a high-humidity environment and low relative permittivity. Hollow particles comprising a resin-containing shell and a hollow portion that is surrounded by the shell, wherein: the shell contains, as the resin, a polymer including 70-100 parts by mass of crosslinkable monomer units per 100 parts by mass of all monomer units; the porosity is 60% or greater; the surfactant content present on the hollow particle surface is 200 ppm or less; and the relative permittivity at a frequency of 1 MHz is 1.6 or less.
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| JPH0859743 | LIQUID ABSORBENT |
| WO/2003/042227 | ENZYMATIC SYNTHESIS OF SUGAR ACRYLATES |
Inventors:
KUROKAWA HISASHI (JP)
Application Number:
PCT/JP2021/041476
Publication Date:
May 27, 2022
Filing Date:
November 11, 2021
Export Citation:
Assignee:
ZEON CORP (JP)
International Classes:
C08F20/20; C08F2/18; C08J3/12
Domestic Patent References:
| WO2020066704A1 | 2020-04-02 | |||
| WO2020066705A1 | 2020-04-02 | |||
| WO2002072671A2 | 2002-09-19 |
Foreign References:
| JP2017165890A | 2017-09-21 | |||
| JP2020033503A | 2020-03-05 | |||
| JP2006265363A | 2006-10-05 | |||
| JP2004123834A | 2004-04-22 | |||
| JP2000313818A | 2000-11-14 |
Other References:
"Kagaku Binran, Kiso Hen, Kaitei 4 Ban", 30 September 1993, MARUZEN PUBLISHING CO., LTD., pages: 498 - 503
Attorney, Agent or Firm:
KISHIMOTO, Tatsuhito et al. (JP)
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