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    • 2. 发明授权
    • Heat-curable coating compositions
    • 热固化涂料组合物
    • US5276125A
    • 1994-01-04
    • US616546
    • 1990-11-21
    • Josef PedainWilhelm ThomaWalter SchroerWaldemar KlingManfred Dietrich
    • Josef PedainWilhelm ThomaWalter SchroerWaldemar KlingManfred Dietrich
    • C08G18/65C08G18/08C08G18/10C08G18/40C09D175/00C09D175/04C08G18/81
    • C08G18/10C08G18/0819C08G18/40C08G18/409C09D175/04
    • The present invention relates to heat-curable coating compositions containingA) a prepolymer having an average of 2-4 ketoxime-blocked NCO groups, having an average moleculer weight of 500-15,000 and prepared from aliphatic, cycloaliphatic and aromatic polyisocyanates and one or more polyhydroxy components which contain 0 to 30% by weight of ethylene oxide units andB) a crosslinking agent of the formula ##STR1## wherein R and R.sup.1 represent H or C.sub.1 -C.sub.4 -alkyl, the ratio of equivalents of blocked NCO groups in A) to NH.sub.2 groups in B) being 1.35:1 to 0.95:1, characterized in that at least one of the polyhydroxy compounds used for the preparation of the prepolymer contains, in stable dispersion, a polyurethane, a polyurethane-urea and/or a polyurea, which is substantially free from NCO groups, hydroxyl groups and amino groups and which are synthesized from aromatic, aliphatic and/or cycloaliphatic diisocyanates and from diamines, hydrazine and/or diols, provided that at least one of these components carries a radical having hydrophilic characteristics.The present invention also relates to the use of these coating compositions in a process for the coating, particularly water vapor-permeable coating, of substrates, preferably textile sheet-like structures and leather.
    • 本发明涉及可热固化的涂料组合物,其包含A)具有平均2-4个酮肟封闭的NCO基团的预聚物,其平均分子量为500-15,000,并由脂族,脂环族和芳族多异氰酸酯和一种或多种 含有0至30重量%环氧乙烷单元的多羟基组分和B)式(*化学结构*)的交联剂,其中R和R 1表示H或C 1 -C 4烷基,封闭的NCO基团的当量比 在A)中的B)中的NH 2基团为1.35:1至0.95:1,其特征在于用于制备预聚物的至少一种多羟基化合物以稳定的分散体含有聚氨酯,聚氨酯 - 脲和/ 或基本上不含NCO基团,羟基和氨基并且由芳族,脂族和/或脂环族二异氰酸酯和二胺,肼和/或二醇合成的聚脲,条件是至少 这些组分之一携带具有亲水特性的基团。 本发明还涉及这些涂料组合物在基材,优选纺织片状结构和皮革的涂覆,特别是水蒸气可渗透涂层的方法中的用途。
    • 3. 发明授权
    • Coating compositions containing solvents and crosslinking agents and
their use for heat-activated one-coat reverse coating
    • 含有溶剂和交联剂的涂料组合物及其用于热活化单层反涂层的用途
    • US4657613A
    • 1987-04-14
    • US826945
    • 1986-02-07
    • Wilhelm ThomaJosef PedainWalter SchroerWaldemar Kling
    • Wilhelm ThomaJosef PedainWalter SchroerWaldemar Kling
    • C08G18/12C09D175/04D06N3/14B32B27/12
    • D06N3/141C08G18/12C09D175/04
    • This invention relates to PU-coating compositions containing solvent and combinations of crosslinking agents and to a process for producing polyurethane coatings on the principle of heat-activated, one-coat reverse coating by knife-coating the polyurethane coating composition onto a temporary support, drying the layer and laminating the textile substrates using preferably heated pressure rollers, followed by heating at elevated temperatures, the coating compositions used being solvent-containing, 20 to 60% compositions of a polyurethane mixture I containing(A) relatively soft polyurethanes and(B) relatively hard one-component polyurethanes and a crosslinker combination II containing(C) formaldehyde-urea and/or formaldehyde-melamine resins and crosslinking catalysts and(D) aliphatic and/or aromatic polyisocyanates, particularly blocked polyisocyanates,and, optionally, additions of soluble cellulose esters, handle-improving agents, optionally polysiloxanes containing oxyalkylene groups and other standard additives, such as pigments.The heat-active one-coat reverse coatings obtained in this way show surprisingly high dry and wet adhesion values on textile substrates through the mixed crosslinking of the selected polyurethane mixtures and, hence, high article fastness values.
    • 本发明涉及含有溶剂和交联剂组合的PU涂料组合物,以及通过将聚氨酯涂料组合物刮涂到临时载体上的热活化单涂层反涂层原理,制备聚氨酯涂料的方法,干燥 所述层并且使用优选加热的压力辊层压所述纺织品基材,然后在升高的温度下加热,所用的涂料组合物是含溶剂的20至60%的包含(A)相对柔软的聚氨酯的聚氨酯混合物I的组合物,和(B) 相对硬的单组分聚氨酯和含有(C)甲醛 - 脲和/或甲醛 - 三聚氰胺树脂和交联催化剂的交联剂组合II和(D)脂族和/或芳族多异氰酸酯,特别是封端的多异氰酸酯,以及任选的添加可溶性 纤维素酯,手感改善剂,任选地含有氧化烯的聚硅氧烷 起泡等标准添加剂,如颜料。 以这种方式获得的热活性单层反涂层通过所选择的聚氨酯混合物的混合交联显示出令人惊讶的高的干和湿附着值,因此,高的制品牢度值。
    • 10. 发明授权
    • Coating agents of polyurethane dispersions and the use thereof for top
coats and finishes
    • 聚氨酯分散体的涂层剂及其用于顶部涂层和表面处理剂的用途
    • US4652466A
    • 1987-03-24
    • US841492
    • 1986-03-19
    • Wilhelm ThomaKlaus NollKlaus NachtkampJosef PedainWalter Schroer
    • Wilhelm ThomaKlaus NollKlaus NachtkampJosef PedainWalter Schroer
    • C08G18/08C08G18/12C08G18/42C08G18/44C08G18/66C08G18/72C08G18/75C08J7/04B05D5/00
    • C08G18/0804C08G18/12C08G18/42C08G18/4238C08G18/44C08G18/6644C08G18/722C08G18/75C08J7/047C08J2327/06Y10T428/3158
    • This invention relates to coating compositions based on aqueous polyurethane dispersions, as well as the use of the coating compositions for the production of top coats or finishes on flexible substrates, particularly on PVC. The present coating agents contain an aqueous polyurethane dispersion having certain physico-chemical properties and the following composition of the solid substance:(A) from about 30 to 60%, by weight, of a hexane diol-1,6-polyester diol having a molecular weight of from about 500 to 6000;(B) up to about 8%, by weight, of a relatively low molecular weight triol having a molecular weight of from about 91 to 399;(C) from about 3 to 30%, by weight, of one or more mono- or poly-functional compounds bearing cationic and/or anionic groups and/or containing non-ionic polyoxyethylene segments;(D) from about 20 to 50%, by weight, of a diisocyanate corresponding to the following general formula: ##STR1## wherein R.sub.1, R.sub.2 and R.sub.3, which may be the same or different, each represents hydrogen or a straight- or branched-chain aliphatic hydrocarbon radical containing from 1 to 4 carbon atoms;(E) from about 2.5 to 20%, by weight, of other aliphatic and/or cycloaliphatic diisocyanates; and(F) from about 0.5 to 4%, by weight, of hydrazine; and optionally conventional additives, auxiliaries and catalysts.
    • 本发明涉及基于水性聚氨酯分散体的涂料组合物,以及用于在柔性基材上,特别是PVC上生产顶涂层或表面处理剂的涂料组合物的用途。 本发明的涂层剂含有具有一定物理化学性质和以下固体物质组成的水性聚氨酯分散体:(A)约30至60重量%的己二醇-1,6-聚酯二醇,其具有 分子量为约500至6000; (B)至多约8重量%的分子量为约91至399的较低分子量三醇; (C)约3至30重量%的一种或多种带有阳离子和/或阴离子基团和/或含有非离子聚氧乙烯链段的单官能或多官能化合物; (D)约20至50重量%的对应于以下通式的二异氰酸酯:其中R 1,R 2和R 3可以相同或不同,各自表示氢或直链或支链 含有1至4个碳原子的链脂族烃基; (E)约2.5至20重量%的其它脂族和/或脂环族二异氰酸酯; 和(F)约0.5至4重量%的肼; 和任选的常规添加剂,助剂和催化剂。