公开(公告)号：US20210301148A1

公开(公告)日：2021-09-30

申请号：US17257872

申请日：2019-07-05

申请人： KUSUMOTO CHEMICALS, LTD.

发明人： Yasuhiro OIWA ,  Kohei OGAWA

IPC分类号： C09D5/00 ,  C09D7/47 ,  C09D7/65 ,  B05D5/08 ,  B05D1/26 ,  B05D7/00

摘要： [Problem] To provide a surface control agent for a water-based coating, the surface control agent having both cissing prevention properties and overcoatability when used for applications requiring excellent appearance and overcoatability. [Solution] The surface control agent for a water-based coating includes: a copolymer containing, as constituent monomers, a dibasic acid ester (A) having a polymerizable unsaturated double bond in an amount of 10% by mass or more and 99% by mass or less, and an ether group-containing polymerizable unsaturated monomer (B) having a (meth)acryloyl group, a vinyl ether group, or an allyl group in an amount of 1% by mass or more and 90% by mass or less, wherein the copolymer has a weight-average molecular weight of 1,000 or more and 100,000 or less.

公开(公告)号：US20180044551A1

公开(公告)日：2018-02-15

申请号：US15665613

申请日：2017-08-01

申请人： KUSUMOTO CHEMICALS, LTD.

发明人： Kohei OGAWA ,  Yasuhiro OIWA ,  Makoto UBUKATA

IPC分类号： C09D187/00 ,  C08F283/06 ,  C08F216/06 ,  C08F220/06 ,  C08F10/14

CPC分类号： C09D187/005 ,  C08F10/14 ,  C08F216/06 ,  C08F220/06 ,  C08F283/06 ,  C09D5/00 ,  C09D7/65 ,  C09D133/08 ,  C09D133/10 ,  C08F2220/286 ,  C08F212/36 ,  C08F2230/085 ,  C08F218/10 ,  C08F2220/1891 ,  C08F220/20 ,  C08F2220/1858 ,  C08F2220/1883 ,  C08F2220/325 ,  C08F220/54

摘要： Provided is a novel layer migration control agent that is added to a paint composition when forming a multilayer coating film on a coating object by curing a prime coating film and a top coating film at the same time, the agent making it possible to control layer migration of the two coating films and obtain the multilayer coating film with satisfactory finish appearance. The layer migration control agent is a copolymer obtained by copolymerization of a monomer mixture including 5% by weight to 90% by weight of a polymerizable unsaturated monomer including an ether group and 10% by weight to 95% by weight of a polymerizable unsaturated monomer having a hydrophobic group having 1 to 22 carbon atoms, the copolymer having a weight average molecular weight of 1000 to 100,000.