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    • 3. 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。
    • 9. 发明授权
    • Process for multiple-coat reverse coating using polyurethane solutions
    • 使用聚氨酯溶液进行多层反涂的工艺
    • US4675211A
    • 1987-06-23
    • US599112
    • 1984-04-11
    • Wilhelm ThomaJosef PedainWalter Schroer
    • Wilhelm ThomaJosef PedainWalter Schroer
    • C08G18/32C08G18/38D06N3/14B05D5/10
    • C08G18/3206C08G18/3221C08G18/3823D06N3/14
    • This invention relates to a process for multiple-coat reverse coating using at least two different polyurethane coating solutions, all the coating solutions containing one and the same polar solvent, preferably substantially anhydrous dimethyl formamide. By choosing(A) surface-coat polyurethane solutions specially made up using high-melting diol chain-extending agents and by using(B) highly concentrated adhesive-coat polyurethane solutions containing at least 40% by weight of polyurethane,it is possible to effectively prevent the so-called "frostwork effect" when applying the adhesive coat to the surface coat (A) by the reverse coating process and the troublesome "overlamination" off the web-form textile during its lamination onto the PU-layers formed by reverse coating. In addition, recovery of the solvent from the coating solutions is simplified.
    • 本发明涉及一种使用至少两种不同的聚氨酯涂层溶液进行多层反涂的方法,所有涂层溶液都含有一种相同的极性溶剂,优选基本上无水的二甲基甲酰胺。 通过选择(A)使用高熔点二醇增链剂特别制成的(A)表面涂层聚氨酯溶液,并且使用(B)含有至少40重量%聚氨酯的高浓度粘合剂涂层聚氨酯溶液,可以有效地 当通过反向涂布法将粘合剂涂层施加到表面涂层(A)上时,防止所谓的“霜冻效应”,并且在层压到网状织物上的麻烦的“叠层”到由反涂层形成的PU层上 。 此外,简化了溶剂从涂布溶液的回收。
    • 10. 发明授权
    • Coating and dressing agents for leather and leather substitutes based on
polyurethane urea coating compounds
    • 基于聚氨酯脲涂料的皮革和皮革替代品的涂层和改性剂
    • US4401801A
    • 1983-08-30
    • US408371
    • 1982-08-16
    • Josef PedainWilhelm ThomaJurgen GrammelWalter Schroer
    • Josef PedainWilhelm ThomaJurgen GrammelWalter Schroer
    • C08G18/12C08G18/40C08G18/42C08G18/75C14C11/00D06N3/14C08G18/65
    • D06N3/14C08G18/12C08G18/4018C08G18/4202C08G18/75C14C11/006
    • This invention relates to coating agents and dressing agents for leather and leather substitutes with improved resistance to plasticizer migration, greater hardness and folding strength, a dry hand and resistance to aqueous alcoholic solutions, based on linear or only slightly branched thermoplastic polyurethane ureas built up from the following components(A) at least two macrodiols in a molar ratio of from about 1:6 to 6:1, one of which macrodiols(1) has an average molecular weight of from about 254 to 650 and contains at least one benzene, cyclohexane or cyclohexene ring, while(2) the second macrodiol has an average molecular weight in the range of from about 1200 to 3000 but has at least three times the molecular weight of A/l, and which contain(B) from about 0.5 to 11 mol of chain lengthening agent per mol of macrodiol mixture, at least about 50 mol % of the chain lengthening agents used being aliphatic and/or cycloaliphatic diamines and/or hydrazine,and in which(C) the diisocyanates used are cycloaliphatic diisocyanates, up to about 50 mol % of which may be replaced by aliphatic and/or aromatic diisocyanates.
    • 本发明涉及用于皮革和皮革代用品的涂料和改性剂,其具有改善的耐增塑剂迁移性,更高的硬度和折叠强度,干手和耐醇水溶液,基于线性或仅轻微分支的热塑性聚氨酯脲,其由 以下组分(A)至少两种摩尔比为约1:6至6:1的大分子二醇,其中一个大分子二醇(1)的平均分子量为约254至650,并含有至少一个苯, 环己烷或环己烯环,而(2)第二大二茂醇的平均分子量为约1200-3000,但具有至少三倍于A / l的分子量,并且含有(B)约0.5至 每摩尔大分子二醇混合物使用11摩尔的链延长剂,至少约50摩尔%的使用的链增长剂是脂族和/或脂环族二胺和/或肼,其中(C)二异氰酸酯 使用的氰酸酯是脂环族二异氰酸酯,其中最多约50mol%可以被脂族和/或芳族二异氰酸酯代替。