Title:
EXTINCTION ULTRALOW-TEMPERATURE CURING POWDER COATING COMPOSITION AND COATING LAYER THEREOF
Document Type and Number:
WIPO Patent Application WO/2022/143404
Kind Code:
A1
Abstract:
Disclosed are an extinction ultralow-temperature curing powder coating composition and a coating layer thereof. The composition comprises at least a high-acid-value polyester resin with an acid value of not less than 60 mgKOH/g and a GMA acrylic resin with an epoxy equivalent of not more than 600 g/eq. The high-acid-value polyester resin and the GMA acrylic resin undergo a cross-linking curing reaction at a temperature of not higher than 125ºC for not longer than 30 minutes to form a cured coating film, and the cured coating film has a gloss range of 2-20º in a 60º light source test. In the present invention, curing can be completed at a temperature of not higher than 125ºC within not longer than 30 minutes, and the cured coating film thereof has a gloss range of 2-20º in a 60º light source test at the same time; in addition, the cured coating film has a good weather resistance and can be applied to indoor and outdoor fields.
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Inventors:
FU GUANGMING (CN)
DAI TIANHE (CN)
LUO BIAO (CN)
DAI TIANHE (CN)
LUO BIAO (CN)
Application Number:
PCT/CN2021/140855
Publication Date:
July 07, 2022
Filing Date:
December 23, 2021
Export Citation:
Assignee:
TIGER NEW SURFACE MAT SUZHOU CO LTD (CN)
International Classes:
C09D5/03; B05D1/06; B05D7/16; C08F220/00; C08G63/00; C08L67/06; C09D5/46; C09D133/00; C09D167/00
Foreign References:
| CN112680074A | 2021-04-20 | |||
| CN1708561A | 2005-12-14 | |||
| CN103415545A | 2013-11-27 | |||
| CN101787239A | 2010-07-28 | |||
| CN1339547A | 2002-03-13 | |||
| CN109385191A | 2019-02-26 | |||
| CN109401573A | 2019-03-01 | |||
| CN109486373A | 2019-03-19 | |||
| EP2027937A1 | 2009-02-25 | |||
| US7034075B1 | 2006-04-25 | |||
| US5744522A | 1998-04-28 |
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