Title:
POLYOLEFIN-BASED PAINT COMPOSITION AND PRIMER PAINT
Document Type and Number:
WIPO Patent Application WO/2024/106348
Kind Code:
A1
Abstract:
The present invention provides a paint composition having excellent high-pressure car-washing resistance on a polyolefin resin substrate, exhibiting favorable adhesiveness and water resistance with respect to both a non-polar substrate such as a polyolefin substrate and a polar substrate such as a polycarbonate substrate or an ABS substrate, and also having favorable storage stability. Specifically, the present invention provides a paint composition characterized by containing a modified polyolefin (A) and a (meth)acrylic resin (B), wherein: the glass transition temperature of the modified polyolefin (A) is at least -30ºC; the (meth)acrylic resin (B) contains a polymer of a radically polymerizable compound (b1); the radically polymerizable compound (b1) contains at least one among (meth)acrylate having an alkoxymethyl group and (meth)acrylate having an alkoxyethyl group; the glass transition temperature of the (meth)acrylic resin (B) is at least 0ºC; and the hydroxyl value of the (meth)acrylic resin (B) is 5-150 mg KOH/g.
Inventors:
YAMASAKI HOKUTO (JP)
KASHIHARA KENJI (JP)
KASHIHARA KENJI (JP)
Application Number:
PCT/JP2023/040640
Publication Date:
May 23, 2024
Filing Date:
November 10, 2023
Export Citation:
Assignee:
TOYOBO MC CORP (JP)
International Classes:
C09D133/00; C09D5/00; C09D123/28; C09D123/30; C09D133/14
Domestic Patent References:
| WO2018062182A1 | 2018-04-05 | |||
| WO2020071214A1 | 2020-04-09 | |||
| WO2022054727A1 | 2022-03-17 |
Attorney, Agent or Firm:
SAEGUSA & PARTNERS (JP)
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