Title:
AQUEOUS COMPOSITION AND CURED PRODUCT THEREOF
Document Type and Number:
WIPO Patent Application WO/2023/033145
Kind Code:
A1
Abstract:
Disclosed are a novel aqueous composition and a cured product thereof, wherein the aqueous composition can be applied onto a substrate through coating, allows for a coating which is resistant to high temperatures and high frequency impacts and has surface strength of a film enough to withstand combustion pressure and fuel injection pressure, can form a cured coating film having low thermal conductivity with low specific heat, and yields a cured product that can form a film not only on an aluminum alloy substrate but also on a metal substrate, such as an iron-based substrate and a titanium-based substrate. The aqueous composition contains: a hollow powder material composed of a silicon dioxide-based compound and having a porous or monospherical hollow structure therein; a non-hollow metal oxide powder material; a metal oxide fiber material; an alkali metal silicate; and water. The alkali metal silicate includes at least sodium silicate and potassium silicate, and the hollow powder material has an average particle diameter in the range of 5 μm to 40 μm, a bulk specific gravity in the range of 0.14 to 0.95 g/cm3, and a compressive strength of at least 10 MPa.
Inventors:
KANEKO NORIYOSHI (JP)
KANEKO RYUZO (JP)
KANEKO RYUZO (JP)
Application Number:
PCT/JP2022/033124
Publication Date:
March 09, 2023
Filing Date:
September 02, 2022
Export Citation:
Assignee:
QRSYSTEM CO LTD (JP)
International Classes:
C09C1/30; C09D1/02; C09D5/00; C09D7/61; C09D17/00; C09D179/08
Domestic Patent References:
| WO2021004558A1 | 2021-01-14 | |||
| WO2021004559A1 | 2021-01-14 | |||
| WO2009020206A1 | 2009-02-12 |
Foreign References:
| JP2001072480A | 2001-03-21 | |||
| JP2000143328A | 2000-05-23 | |||
| JPH0277582A | 1990-03-16 | |||
| JP2015032116A | 2015-02-16 | |||
| JP2020190023A | 2020-11-26 | |||
| JP2015068302A | 2015-04-13 |
Other References:
HIDEO YAMASHITA ET AL.: "Heat Insulation by Temperature Swing in Combustion Chamber Walls (Fifth Report) - Influence of Engine Operating Condition", TRANSACTIONS OF SOCIETY OF AUTOMOTIVE ENGINEERS OF JAPAN, vol. 49, no. 2, 2018, pages 156 - 161
Attorney, Agent or Firm:
Tanigawa and Partners, Patent Firm (JP)
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