Title:
AQUEOUS COATING COMPOSITION
Document Type and Number:
WIPO Patent Application WO/2021/024604
Kind Code:
A1
Abstract:
The present invention provides an aqueous coating composition which is capable of forming a coating film that has excellent cissing resistance and water resistance. An aqueous coating composition which contains (A) at least one hydroxyl group-containing resin that is selected from among (A1) hydroxyl group-containing acrylic resins and (A2) hydroxyl group-containing polyester resins, (B) an oligomer and (C) an alkyl etherified melamine resin, wherein: the oligomer (B) has a number average molecular weight within the range of from 200 to 800 and a solubility parameter within the range of from 10.0 to 13.5; and the molar ratio of methyl groups to butyl groups in the alkyl etherified melamine resin (C), namely (methyl group)/(butyl group) molar ratio is from 50/50 to 0/100.
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Inventors:
KUBO YOSHITAKA (JP)
MIZUTANI YUSUKE (JP)
INAGAKI TAKUYA (JP)
YOKOTA GEN (JP)
MIZUTANI YUSUKE (JP)
INAGAKI TAKUYA (JP)
YOKOTA GEN (JP)
Application Number:
PCT/JP2020/022557
Publication Date:
February 11, 2021
Filing Date:
June 08, 2020
Export Citation:
Assignee:
KANSAI PAINT CO LTD (JP)
International Classes:
C09D5/02; C09D7/63; C09D133/00; C09D161/28; C09D167/00
Domestic Patent References:
| WO2012036183A1 | 2012-03-22 |
Foreign References:
| JP2015140419A | 2015-08-03 | |||
| JP2014125558A | 2014-07-07 | |||
| JP2007009059A | 2007-01-18 | |||
| JP2014009288A | 2014-01-20 | |||
| JP2002308993A | 2002-10-23 | |||
| JPS52107029A | 1977-09-08 |
Other References:
POLYMER ENGINEERING AND SCIENCE, vol. 14, no. 2, 1974, pages 147
See also references of EP 4008755A4
See also references of EP 4008755A4
Attorney, Agent or Firm:
AOKI, Atsushi et al. (JP)
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