申请人:Bayer Aktiengesellschaft
公开号:US04410663A1
公开(公告)日:1983-10-18
This invention relates to lacquer binders which can be diluted with water, consisting of a mixture of: A. 50-94% by weight, preferably 55-80% by weight of a copolymer consisting of copolymerized units of a. 30-65% by weight of an aromatic vinyl or isopropenyl compound having 8-14 C-atoms or of a methacrylic acid alkyl ester having 1-4 C-atoms in the alcohol component or mixtures thereof, b. 10-30% by weight of at least one acrylic acid alkyl ester having 1-8 C-atoms in the alcohol component, c. 1-20% by weight of maleic acid, fumaric acid, itaconic acid or semiesters thereof having 1-8 C-atoms in the alcohol component, or (meth)acrylic acid or mixtures of the aforesaid monomers, d. 0-20% by weight of at least one hydroxyalkyl ester of (meth)acrylic acid having 2-4 C-atoms in the alkyl group or glycidyl (meth)acrylate or mixtures of the aforesaid monomers, e. 10-30% by weight of N-methylol(meth)acrylic acid amide or N-methoxymethyl (meth)acrylic acid amide, preferably N-methoxymethyl(meth)acrylic acid amide, and f. 2-40% by weight of a reaction product of an allyl glycidyl ether and aliphatic, cycloaliphatic, araliphatic or aromatic monocarboxylic acid having 2-30 C-atoms or mixtures thereof, preferably saturated aliphatic branched chain monocarboxylic acids having 5-20 C-atoms, in particular .alpha.-ethyl-hexanoic acid isononanoic acid; and B. 6-50% by weight, preferably 20 to 55% by weight of an aminoplast resin; and C. 0-30% by weight, based on the copolymer, of a lactam, 30-100% of the number of carboxyl groups of component A.c. incorporated in the copolymer being neutralised by ammonia or mono- or polyamines.
本发明涉及可以用水稀释的漆基料,包括以下混合物:A. 50-94%重量,优选55-80%重量的共聚物,由以下共聚单体组成:a. 30-65%重量的含有8-14个碳原子的芳香族乙烯或异丙烯化合物或1-4个碳原子的甲基丙烯酸烷基酯或其混合物;b. 10-30%重量的至少一种含有1-8个碳原子的丙烯酸烷基酯;c. 1-20%重量的马来酸、富马酸、柚皮酸或其1-8个碳原子的半酯或(甲基)丙烯酸或其混合物;d. 0-20%重量的至少一种含有2-4个碳原子的羟基烷基(甲基)丙烯酸酯或环氧基(甲基)丙烯酸酯或其混合物;e. 10-30%重量的N-甲醛(甲基)丙烯酰胺或N-甲氧甲基(甲基)丙烯酰胺,优选为N-甲氧甲基(甲基)丙烯酰胺;f. 2-40%重量的烯丙基环氧乙烷和具有2-30个碳原子的脂肪族、环脂族、芳基脂肪族或芳基单羧酸的反应产物或其混合物,优选为饱和的脂肪族支链单羧酸,其碳原子数为5-20,特别是α-乙基己酸异壬酸;B. 6-50%重量,优选20-55%重量的氨基酸酯树脂;C. 0-30%重量,基于共聚物,的内酰胺,A.c组分中所包含的羧基数的30-100%被氨或一元或多元胺中和。