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1. 发明公开

EP2809736A1 KLARLACKBESCHICHTUNGSZUSAMMENSETZUNG, VERFAHREN ZUR HERSTELLUNG UND VERWENDUNG 有权
标题翻译：维多利亚ZER HERSTELLUNG UND VERWENDUNG KLARLACKBESCHICHTUNGSZUSAMMENSETZUNG
公开(公告)号：EP2809736A1
公开(公告)日：2014-12-10
申请号：EP13704386.5
申请日：2013-02-01
申请人： BASF Coatings GmbH
发明人： WEIHER, Christian , KLEIN, Günter , POPPE, Andreas , CLAUSEN-MEIRING, Ulrike , KLEINE BECKMANN, Helmut , AUSSMANN, Corinna , LEITNER, Thomas
IPC分类号： C09D167/00
CPC分类号： C09D167/00 , B05D3/02 , C08L2205/02 , C08L2205/025 , C08L2205/03 , C08L2205/035 , C08K5/21 , C08K5/42 , C08L61/28
摘要： The present invention relates to a clearcoat composition containing (A) at least one polyester with an OH count of 80 - 250 mg KOH/g, containing (A1) 10 to 20 mol% of at least one acyclic, aliphatic, branched polyol having two hydroxyl groups, (A2) 5 to 15 mol% of at least one acyclic, aliphatic, branched polyol having three hydroxyl groups, (A3) 10 to 20 mol% of at least one acyclic, aliphatic, branched polyol having four hydroxyl groups, (A4) 25 to 40 mol% of at least one cyclo-aliphatic 1,2 dicarboxylic acid and/or the anhydride of this dicarboxylic acid, as well as (A5) 20 to 35 mol% isononanoic acid, wherein the specific molar fraction is based in each case on the overall molar fraction of the compounds (A1) to (A5) and this overall molar fraction is at least 70 mol% of the compounds contained in polyester (A); (B) at least one butanol etherified melamine-formaldehyde resin having a starting crosslinking temperature that is between 65°C and 100°C, lower than the starting crosslinking temperature of hexamethoxymethyl melamine; (C) at least one butanol-etherified melamine-formaldehyde resin having a starting crosslinking temperature that is between 30°C and 60°C, lower than the starting crosslinking temperature of hexamethoxymethyl melamine; (D) at least one organic urea compound as a rheological aid; and (E) at least one acid catalyst. In addition, the present invention relates to a method for producing the clearcoat composition, the use of the clearcoat composition to produce a hardened clear varnish on a substrate and a corresponding clearcoat produced on a substrate.
摘要翻译：描述了透明涂料组合物，其用途和制备透明涂料组合物的方法。透明涂料涂料组合物包含（A）至少一种OH值为80-250mg KOH / g的聚酯，其包含（A1）10至20mol％的至少一种具有两个羟基的无环脂肪族支链多元醇（ A2）5〜15摩尔％的至少一种具有3个羟基的非环状，脂肪族，支链状多元醇，（A3）10〜20摩尔％的至少1个具有4个羟基的非环状，脂肪族，支链状多元醇，（A4）25〜 40摩尔％的至少一种脂环族1,2-二羧酸和/或该二羧酸的酸酐，和（A5）20-35摩尔％的异壬酸，其中摩尔分数基于总摩尔数化合物（A1）至（A5）的分数，其中该总摩尔分数占聚酯（A）中存在的化合物的至少70摩尔％。（B）至少一种低于六甲氧基甲基三聚氰胺的交联起始温度的交联起始温度在65℃-100℃之间的丁醇 - 醚化蜜胺 - 甲醛树脂; （C）至少一种低于六甲氧基甲基三聚氰胺的交联起始温度的交联起始温度在30℃-60℃之间的丁醇 - 醚化蜜胺 - 甲醛树脂; （D）至少一种作为流变助剂的有机尿素化合物; 和（E）至少一种酸催化剂。

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