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    • 2. 发明授权
    • Process for the preparation of viscosity stable polyurethane solutions
    • 制备粘度稳定的聚氨酯溶液的方法
    • US4530990A
    • 1985-07-23
    • US433596
    • 1982-10-08
    • Reinhard HalpaapJosef PedainWilhelm ThomaJurgen Grammel
    • Reinhard HalpaapJosef PedainWilhelm ThomaJurgen Grammel
    • C08G18/00C08G18/10C08G18/65C08G2/28C08G18/08
    • C08G18/10
    • A process is described for the preparation of predominantly linear polyurethane solutions which comprises(a) reacting(A) an organic diisocyanate or diisocyanate mixture optionally containing small portions of a triisocyanate with(B) one or more polyhydroxyl compounds which are predominantly bifunctional and generally have molecular weights of from about 400 to 5000 and(C) optionally one or more chain lengthening agents having at least two isocyanate reactive hydrogen atoms and molecular weights of from about 32 to 399, wherein the proportion of isocyanate groups to the number of isocyanate-reactive hydrogen atoms is in the range of from about 0.9:1 to 1:0.9, and(b) when the polyurethane formed has reached the required viscosity, adding a monofunctional, low molecular weight oxime having a molecular weight of from about 73 to 325, preferably butanone oxime, to the reaction mixture as chain breaking agent in a quantity equivalent to or in excess of the equivalents of unreacted isocyanate groups.The new chain breaking agents are simple compounds which effect rapid chain breaking and have no undesirable side effects as regards subsequent breakdown of the chains and even enable further synthesizing reactions to be carried out if desired, for example with diamines.
    • 描述了用于制备主要为线性聚氨酯溶液的方法,其包括(a)使(A)任选地含有少量三异氰酸酯的有机二异氰酸酯或二异氰酸酯混合物与(B)一种或多种主要是双官能的多羟基化合物反应,并且通常具有 约400至5000的分子量和(C)任选的一种或多种具有至少两个异氰酸酯反应性氢原子和分子量为约32至399的链延长剂,其中异氰酸酯基团与异氰酸酯反应性数目的比例 氢原子在约0.9:1至1:0.9的范围内,和(b)当所形成的聚氨酯达到所需粘度时,加入分子量为约73至325的单官能低分子量肟, 优选丁酮肟作为断链剂的反应混合物,其量等于或超过未反应的异氰酸酯的当量 anate组。 新的断链剂是简单的化合物,其能够快速断链,并且对链的随后分解没有不期望的副作用,并且甚至能够进一步合成反应,如果需要,例如用二胺进行。
    • 3. 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。
    • 4. 发明授权
    • Process for the preparation of aqueous polyurethane dispersions and
solutions
    • 制备水性聚氨酯分散体和溶液的方法
    • US4829122A
    • 1989-05-09
    • US19902
    • 1987-02-27
    • Josef PedainKlaus NachtkampKlaus NollJurgen Grammel
    • Josef PedainKlaus NachtkampKlaus NollJurgen Grammel
    • C08G18/00C03C25/00C08G18/08C08G18/10
    • C08G18/0804C03C25/00C08G18/10Y10T428/31551
    • The present invention therefore relates to a process for the preparation of aqueous solutions or dispersions of polyurethane-polyureas by the reaction in the aqueous phase of prepolymers which contain chemically built-in hydrophilic groups and/or external emulsifiers which are not bound chemically as well as at least two free isocyanate groups with organic compounds containing at least two primary and/or secondary amino groups, characterized in that the isocyanate prepolymer which has been hydrophilically modified and/or contains an external emulsifier is mixed, in the absence of water, with compounds containing at the most one free primary or secondary amino group and at least one blocked group which releases a free primary or secondary amino group in the presence of water and a total of at least two at least partially blocked primary and/or secondary amino groups, and the mixture is subsequently mixed with water.The invention also relates to the dispersions or solutions obtained by this process and to their use for coating flexible and rigid substrates.
    • 因此,本发明涉及一种制备聚氨酯 - 聚脲的水溶液或分散体的方法,所述水溶液或分散体是通过在水相中含有化学内置的亲水基团的预聚物和/或外部乳化剂的反应制成的, 至少两个含有至少两个伯和/或仲氨基的有机化合物的游离异氰酸酯基团,其特征在于,在没有水的情况下将已经亲水改性和/或含有外部乳化剂的异氰酸酯预聚物与化合物 含有最多一个游离的伯或仲氨基和至少一个在水存在下释放游离的伯或仲氨基并且总共至少两个至少部分封闭的伯和/或仲氨基的封闭基团, 随后将混合物与水混合。 本发明还涉及通过该方法获得的分散体或溶液及其用于涂覆柔性和刚性基材的用途。
    • 6. 发明授权
    • Coating compositions for coatings that are permeable to water vapor and
a process for their preparation
    • 可渗透水蒸气的涂料涂料组合物及其制备方法
    • US5252671A
    • 1993-10-12
    • US887213
    • 1992-05-21
    • Josef PedainKlaus NollWilhelm ThomaDetlef-Ingo Schutze
    • Josef PedainKlaus NollWilhelm ThomaDetlef-Ingo Schutze
    • C14C11/00C08L75/00C09D133/04C09D175/00C09D175/04D06M15/564D06N3/04D06N3/14C08F8/30
    • D06N3/14C09D133/04C09D175/04C08L75/00Y10S528/904
    • The present invention relates to coating compositions containing(A) 70 to 98% by weight, based on the sum of components (A) and (B), of(a) isocyanate-free polymers of ethylenically unsaturated monomers and/or polyurethanes or blocked isocyanate prepolymers, and(b) optional organic solvents, wherein component (A) contains no significant quantities of groups capable of reacting with component (B) or starting materials thereof and has a viscosity (at 23.degree. C.) of 2000 to 100,000 mPa.s;(B) 2 to 30% by weight, based on the sum of components (A) and (B), of a polyaddition product prepared in and dispersed in component (A), wherein the polyaddition product is a polyurethane, polyurethane urea, polyurea, or mixture thereof, containing ionic groups and/or potentially ionic groups in a quantity corresponding to from 0.5 to 20 milliequivalents per 100 g of component (B) but containing substantially no free isocyanate, hydroxyl, or amino groups: and(C) optional cross-linking agents;in which component (B) is formed in situ in component (A).
    • 本发明涉及涂料组合物,其包含(A)70至98重量%,基于组分(A)和(B)的总和,(a)烯属不饱和单体和/或聚氨酯或封闭的无异氰酸酯的聚合物 异氰酸酯预聚物和(b)任选的有机溶剂,其中组分(A)不含有显着量的能够与组分(B)或其原料反应的基团,并且具有2000至100,000mPa的粘度(在23℃) .s; (B)基于组分(A)和(B)的总和,制备和分散在组分(A)中的加聚产物的2-30重量%,其中所述加聚产物是聚氨酯,聚氨酯脲,聚脲 或其混合物,其含有相对于每100g组分(B)0.5至20毫当量但基本上不含游离异氰酸酯,羟基或氨基的量的离子基团和/或潜在的离子基团:和(C)任选的 交联剂; 其中组分(B)在组分(A)中原位形成。