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1. 发明授权

US6001947A Coating agent based on a hydroxyl group-containing polyacrylate resin and its use in processes for producing a multicoat paint system 失效
标题翻译：基于含羟基的聚丙烯酸酯树脂的涂料及其用于制备多色漆系统的方法
公开(公告)号：US6001947A
公开(公告)日：1999-12-14
申请号：US973060
申请日：1998-02-04
申请人： Michael Brunnemann , Harald Borgholte , Peter Hoffmann , Olaf Hallmann , Bernhard Rubbert
发明人： Michael Brunnemann , Harald Borgholte , Peter Hoffmann , Olaf Hallmann , Bernhard Rubbert
IPC分类号： B05D7/24 , C08G18/62 , C09D175/04 , C09D181/08 , C08G18/61
CPC分类号： C09D181/08 , C08G18/62 , C08G18/6241 , Y10T428/31551
摘要： The present invention relates to a coating composition comprising(A) at least one hydroxyl-containing polyacrylate resin,(B) at least one isocyanate crosslinking agent and, if desired,(C) at least one hydroxyl-containing polyester-modified polyacrylate resin,wherein the polyacrylate resin (A) is obtainable by polymerizing(a1) at least one essentially carboxyl-free (meth)acrylic ester,(a2) at least one copolymerizable, hydroxyl-containing monomer which is different from (a3)(a3) at least one reaction product of acrylic acid and/or methacrylic acid with the glycidyl ester of an .alpha.-branched monocarboxylic acid having 5 to 18 carbon atoms per molecule,(a4) if desired, an [sic] at least one carboxyl-containing monomer,(a5) at least one polysiloxane macromonomer having a number-average molecular weight of from 1000 to 40,000 and on average from 0.5 to 2.5 ethylenically unsaturated double bonds per molecule or having on average from 0.5 to 2.5 epoxide groups per molecule,(a6) at least one aromatic vinyl compound, and(a7) if desired, at least one additional, essentially carboxyl-free monomer,the nature and quantity of the monomers being selected such that the polyacrylate resin (A) has the desired OH number and acid number, and the quantity of (a5) being less than 5% by weight.
摘要翻译： PCT No.PCT / EP96 / 02153 Sec。 371日期：1998年2月4日 102（e）日期1998年2月4日PCT提交1996年5月25日PCT公布。 WO96 / 38490 PCT出版物日本公开日1996年12月5日本发明涉及一种涂料组合物，其包含（A）至少一种含羟基的聚丙烯酸酯树脂，（B）至少一种异氰酸酯交联剂，如果需要，（C）至少一种含羟基的聚酯改性的聚丙烯酸酯树脂，其中聚丙烯酸酯树脂（A）可通过聚合（a1）至少一种基本上不含羧的（甲基）丙烯酸酯，（a2）至少一种可共聚的含羟基的单体（a3 ）（a3）丙烯酸和/或甲基丙烯酸与每分子具有5至18个碳原子的α-支化单羧酸的缩水甘油酯的反应产物（a4）（如果需要），[sic]至少一种含羧基单体，（a5）至少一种数均分子量为1000〜40,000，平均每分子0.5〜2.5个烯键式不饱和双键或平均具有0.5〜2.5个环氧基团的聚硅氧烷大分子单体分子，（a6）至少一种芳族乙烯基化合物，和（a7）如果需要，至少一种另外的基本上不含羧的单体，选择单体的性质和数量使得聚丙烯酸酯树脂（A）具有所需的 OH值和酸值，（a5）的量小于5重量％。

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