Coating composition containing at least one dispersion polymer obtainable by emulsion polymerization of at least two stages in a first stage reacting (A1) at least one alkylester of methacrylic acid, (B1) optionally at least one vinylaromatic compound having up to 20 carbon atoms (C1) at least one hydroxyalkyl (meth) acrylate with an alkylene group includes one to 10 carbon atoms, (D1) optionally at least one compound which can be polymerized by free radicals chosen from the group consisting of ethylenically unsaturated nitriles having up to 20 carbon atoms, vinyl esters of carboxylic acids containing up to 20 carbon atoms, vinyl halides having up to 10 carbon atoms and vinyl ethers of alcohols containing 1 to 10 carbon atoms, (E1) optionally at least one carboxylic acid α, ß-ethylenically unsaturated (F1) optionally at least one crosslinker, (G1) optionally at men I a compound selected from the group consisting of (meth) acrylic acid 2- (2-oxoimidazolidin-1-yl) -etiléster (ureidoethyl (meth) acrylate), acetoacetoxyethyl acrylate, methacrylate acetoacetoxipropil, acetoacetoxibutil methacrylate, 2- (acetoacetoxy) ethyl methacrylate , diacetone acrylamide (DAAM) and diacetonmetacrilamida, (H1) optionally at least one compound with a (meth) acrylate and an epoxy group and (I1) optionally at least one α carboxamide, ß-ethylenically unsaturated, in the presence of at least one initiator and in the presence of at least one emulsifier and optionally in the presence of at least one regulator, with the proviso that the copolymer obtained in the first step exhibits an acid number to DIN EN ISO 3682 (potentiometric) non more than 10 mg KOH / g of polymer, - a hydroxyl number 53240-2 DIN (potentiometric acetylation in time 20 minutes) from 2 to 100 mg KOH / g polymer, -a particle size of 20 to 8 0 nm and a weight average molecular weight of 5,000 to 50,000 g / mol determined by size exclusion chromatography with tetrahydrofurane containing 0.1 wt% trifluoroacetic acid as eluent at a flow rate of 1 ml / min and 35 ° C of temperature in the column, and the sum of the monomers (C1) and (I1) is 0.5 to 20 wt%, followed by free radical polymerization in a subsequent step, in the presence of the copolymer produced in the first stage, of (A2) at least one alkyl ester of (meth) acrylic, (B2) optionally at least one vinylaromatic compound having up to 20 carbon atoms (C2) optionally at least one hydroxyalkyl (meth ) acrylate with an alkylene group includes one to 10 carbon atoms, (D2) optionally at least one compound which can be polymerized by free radicals selected from the group consisting of ethylenically unsaturated nitriles having up to 20 carbon atoms, vinyl esters of carboxylic acids containing up to 20 carbon atoms, vinyl halides having up to 10 carbon atoms and vinyl ethers of alcohols containing 1 to 10 carbon atoms, (E2) optionally at least one α carboxylic acid, ß-ethylenically unsaturated ( F2) optionally at least one crosslinker and (G2) optionally at least one compound selected from the group consisting of (meth) acrylic acid 2- (2-oxoimidazolidin-1-yl) -ethyl ester (ureidoethyl (meth) acrylate), acetoacetoxyethyl acrylate, methacrylate acetoacetoxipropil, acetoacetoxibutil methacrylate, 2- (acetoacetoxy) ethyl methacrylate, diacetone acrylamide (DAAM) and diacetonametacrilamida, (H2) optionally at least one compound with a (meth) acrylate and an epoxy group and (I2) optionally at least one carboxamide & Alpah; ethylenically unsaturated, beta, optionally followed by one or more additional steps of a free radical polymerization of at least one monomer, wherein the amount of at m enes emulsifier is from 0.1 to 3.5% by weight, based on the total amount of monomer that can be polymerized by free radicals dosed at all stages in the free radical polymerization, with the proviso that - the relation by weight of the sum of the monomers of the first stage (A1) to (I1) to the sum of the monomers of the next stage (A2) to (I2) is from 5:95 to 70:30, - the product obtained the last stage exhibits a particle size of 50 to 300 nm, - the acid number of the product of the last stage is not greater than the acid number of the product in the first step and - the hydroxyl number of the product of the last stage not is higher than the hydroxyl number of the product of the first stage.
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机译：包含至少一种分散聚合物的涂料组合物，该聚合物可通过第一步中至少两个阶段的乳液聚合反应而获得，该第一步在至少一个步骤中使（A1）至少一个甲基丙烯酸烷基酯，（B1）任选地至少一种具有至多20个碳原子的乙烯基芳族化合物（C1 ）至少一种具有亚烷基的（甲基）丙烯酸羟烷基酯包含1至10个碳原子，（D1）可选地至少一种可以通过选自由具有至多20个碳原子的烯键式不饱和腈组成的组的自由基聚合的化合物，碳原子数不超过20的羧酸的乙烯基酯，碳原子数不超过10的卤代乙烯和碳原子数1到10的醇的乙烯基醚，（E1）至少一种羧酸α，β-烯键式不饱和键（F1 ）任选地至少一种交联剂，（G1）任选地在式I中，选自（甲基）丙烯酸2-（2-氧代咪唑烷-1-基）-酯（脲基乙基）的化合物（甲基）丙烯酸酯），丙烯酸乙酰乙酰氧乙酯，甲基丙烯酸乙酰乙酰氧乙啶，甲基丙烯酸乙酰乙酰氧胆碱，甲基丙烯酸2-（乙酰乙酰氧基）乙酯，二丙酮丙烯酰胺（DAAM）和对乙酰丙酮酸lam啶（H1）可选地至少一种具有（甲基）丙烯酸酯和环氧基的化合物和（I1）在至少一种引发剂的存在下，在至少一种乳化剂的存在下以及任选地在至少一种调节剂的存在下任选地至少一种α-羧酰胺，β-烯键式不饱和，条件是所获得的共聚物第一步中显示的酸值符合DIN EN ISO 3682（电位计），不超过10 mg KOH / g聚合物;-羟基数53240-2 DIN（电位计乙酰化时间20分钟），从2至100 mg KOH / g聚合物，-粒径为20至8 0 nm，重均分子量为5,000至50,000 g / mol，通过尺寸排阻色谱法测定，其中四氢呋喃含有0.1 wt％三氟乙酸作为洗脱液在塔中以1 ml / min的流速和35°C的温度进行流动，单体（C1）和（I1）的总量为0.5至20 wt％，随后在随后的步骤中进行自由基聚合（A2）至少一种（甲基）丙烯酸的烷基酯，（B2）任选的至少一种具有至多20个碳原子的乙烯基芳族化合物（C2）在任选的至少一种羟烷基（具有亚烷基的甲基）丙烯酸酯包括1至10个碳原子，（D2）任选地至少一种可以通过选自具有至多20个碳原子的烯键式不饱和腈，羧酸的乙烯基酯的自由基聚合的化合物含至多20个碳原子，卤代至多10个碳原子和含1至10个碳原子的醇的乙烯基醚，（E2）可选至少一种α羧酸，β-烯键式不饱和（F2）可选至少一种交联剂和（G2）在l选自由（甲基）丙烯酸2-（2-氧代咪唑啉-1-基）-乙基酯（（甲基）丙烯酸脲基乙基酯），丙烯酸乙酰乙酰氧基乙酯，甲基丙烯酸甲酯乙酰乙酰氧基异丙醇，乙酰乙酰氧丁草酯甲基丙烯酸酯，2-甲基（乙酰乙酰氧基） （H2）任选地至少一种具有（甲基）丙烯酸酯和环氧基的化合物，以及（I2）任选地至少一种羧酰胺和Alpah;烯键式不饱和β，任选地随后进行至少一种单体的自由基聚合的一个或多个附加步骤，其中基于乳化剂的单体总量，烯烃乳化剂的量为0.1至3.5重量％通过在自由基聚合的所有阶段中分配的自由基进行聚合，条件是-第一个阶段（A1）至（I1）的单体之和与下一阶段的单体之和的重量比阶段（A2）至（I2）为5:95至70:30，-最后阶段获得的产物的粒径为50至300 nm，-最后阶段产物的酸值不大于第一步产物的酸值和-最后一步产物的羟值不高于第一步产物的羟值。
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