Title:
POLYHYDROXYURETHANE COATING COMPOSITION AND COATING FILM
Document Type and Number:
Japanese Patent JP2020117565
Kind Code:
A
Abstract:
To provide a coating composition capable of forming a coating film which is hardly broken even if scratched by strong force with a metal brush or the like, and exhibits robust self-healing allowing the generated scratches to disappear over time.SOLUTION: A polyhydroxyurethane coating composition and a coating film are provided. The coating composition is for forming a self-healing polyhydroxyurethane cross-linked coating film, and comprises a polyhydroxyurethane resin having a repeating unit represented by the general formula (1), and a curative being a polyisocyanate compound comprising two or more isocyanate groups in each molecule. A 20% modulus of the cross-linked coating film at 25°C is 10 MPa or less.SELECTED DRAWING: None
Inventors:
TAKAHASHI KENICHI
ASAI AKIKO
KIMURA KAZUYA
MUTO KAZUAKI
TANIGAWA MASASHI
ASAI AKIKO
KIMURA KAZUYA
MUTO KAZUAKI
TANIGAWA MASASHI
Application Number:
JP2019007198A
Publication Date:
August 06, 2020
Filing Date:
January 18, 2019
Export Citation:
Assignee:
DAINICHISEIKA COLOR CHEM
International Classes:
C09D175/04; C08G18/64; C08G71/04; C09D7/40
Domestic Patent References:
| JP2017222760A | 2017-12-21 | |||
| JPS4722702B1 | ||||
| JPS4618505B1 | ||||
| JP2017014417A | 2017-01-19 | |||
| JP2014218539A | 2014-11-20 | |||
| JP2012111796A | 2012-06-14 | |||
| JP2018522076A | 2018-08-09 | |||
| JPH05287238A | 1993-11-02 | |||
| JPS61209932A | 1986-09-18 | |||
| JP2016033175A | 2016-03-10 |
Foreign References:
| WO2018235921A1 | 2018-12-27 |
Attorney, Agent or Firm:
Toshieko Kondo
Chongqing Sugano
Keita Takeyama
Kaoru Okada
Chongqing Sugano
Keita Takeyama
Kaoru Okada