Title:
METHOD FOR PRODUCING SUPER WATER-REPELLENT COATING AGENT FOR TOYS, SUPER WATER-REPELLENT COATING AGENT AND TOY USING SAME
Document Type and Number:
WIPO Patent Application WO/2023/281793
Kind Code:
A1
Abstract:
The present invention addresses the problem of providing: a method for producing a super water-repellent coating agent that is environmentally friendly and is capable of easily forming a super water-repellent surface for toys; a super water-repellent coating; and a toy using the super water-repellent coating. The present invention provides a method for producing a super water-repellent coating agent, the method being characterized by comprising: a preparation step for preparing a starting material composition that contains silica nanoparticles, a water-soluble alcohol, water, two kinds of silanes that do not contain a fluorine atom, ammonia water and an organic binder; a modification step in which the surfaces of the silica nanoparticles are modified by having the starting material composition undergo a sol-gel reaction with the silanes; and an odor removal step for removing ammonia after the modification step. The present invention also provides a toy which is characterized by comprising a super water-repellent coating agent which is obtained by the above-described production method, a base material, a dripping tool and a colored solution.
Inventors:
KIMURA ARAFUMI (JP)
NAGASHIMA KENTARO (JP)
NAGASHIMA KENTARO (JP)
Application Number:
PCT/JP2022/005771
Publication Date:
January 12, 2023
Filing Date:
January 25, 2022
Export Citation:
Assignee:
CHEMICOAT CO LTD (JP)
International Classes:
A63H33/00; C09D5/00; C09D7/20; C09D7/61; C09D7/62; C09D129/14; C09D133/02; C09D183/04
Domestic Patent References:
| WO2020137902A1 | 2020-07-02 |
Foreign References:
| JPH0748560A | 1995-02-21 | |||
| JPH1129722A | 1999-02-02 | |||
| JP2000230140A | 2000-08-22 | |||
| JP2020041053A | 2020-03-19 | |||
| CN110283529A | 2019-09-27 | |||
| US10202548B1 | 2019-02-12 | |||
| JP2019025823A | 2019-02-21 |
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