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    • 1. 发明授权
    • Process for the production of patent leather and patent leather prepared
therefrom
    • 制备专利皮革和专利皮革的方法
    • US5151329A
    • 1992-09-29
    • US371357
    • 1989-06-26
    • Klaus NollJosef PedainBruno ZornRosemarie Schmid
    • Klaus NollJosef PedainBruno ZornRosemarie Schmid
    • C08G18/12C08G18/42C14C11/00
    • C14C11/006C08G18/12C08G18/4202Y10T428/31558
    • The present invention is directed to a process for the production of high-gloss patent leather from two-component polyurethane compositions by reacting hydroxyl group-containing oligourethanes with polyisocyanates, characterized in that the oligourethanes have been synthesized fromA) at least 2 macrodiols in a molar ratio of about 1:6 to 6:1 wherein1) the first macrodiol has an average molecular weight of 254 to about 650 and contains an aromatic ring or a saturated or unsaturated cycloaliphatic ring and2) the second macrodiol has an average molecular weight of about 1,200 to 3,000, provided that the molecular weight of macrodiol A/2 is at least 3 times the molecular weight of macrodiol A/1, andB) at least one diisocyanate,wherein the macrodiol:diisocyanate molar ratio is about 1.0:0.9 to 1.0:0.3.The present invention is also directed to the high-gloss patent leather prepared in accordance with the above process.
    • 本发明涉及通过使含羟基的聚氨酯与多异氰酸酯反应从双组分聚氨酯组合物生产高光泽漆皮的方法,其特征在于所述低聚氨酯由A)至少2个大分子二醇在 摩尔比为约1:6至6:1,其中1)第一大二醇的平均分子量为254至约650,并且包含芳环或饱和或不饱和脂环族环,和2)第二大二醇具有平均分子量 约1,200至3,000,条件是大分子二醇A / 2的分子量至少为大分子二醇A / 1的分子量的3倍,B)至少一种二异氰酸酯,其中大二醇:二异氰酸酯摩尔比为约1.0:0.9 至1.0:0.3。 本发明还涉及根据上述方法制备的高光泽漆皮。
    • 2. 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。
    • 3. 发明授权
    • Polyurethanes soluble or dissolved in aromatic hydrocarbons, a process
for their preparation and their use
    • 可溶于或溶于芳烃的聚氨酯,其制备方法及其用途
    • US4789718A
    • 1988-12-06
    • US730136
    • 1985-05-03
    • Klaus NollJosef PedainManfred Schonfelder
    • Klaus NollJosef PedainManfred Schonfelder
    • C08G18/65C08G18/00C08G18/08C08G18/12C08G18/28C08G18/66C09D175/04C08G18/16
    • C08G18/12C08G18/0852C08G18/2805C08G18/6607C09D175/04
    • The present invention is directed to substantially linear polyurethanes obtained from 1 mol of relatively high molecular weight macrodiols such as polyesters, polyethers and polycarbonates having a molecular weight of 400 to 5000, preferably about 500 to 3000, about 1.5 to 16.5 mols of aromatic diisocyanates, optionally about 0.01 to 1 mol of chain breaking agents in the form of compounds which are monofunctional in their reaction with isocyanates, and about 0.5 to 15 mols of low molecular weight, difunctional chain lengthening agents, characterized in that at least 10 mol-% of the chain lengthening agents is 2,2,4-trimethylpentanediol-(1,3) and the remaining chain lengthening agents, having molecular weights of 62 to 399 (preferably 62 to 250), are preferably diols.The present invention also relates to a process for the preparation of these polyurethanes and to their use for the production of coatings on flexible or non-flexible substrates, wherein the coatings are optionally filled, preferably with magnetizable pigments, and are optionally cross-linked.
    • 本发明涉及从1mol相对高分子量的大分子量如聚酯,聚醚和聚碳酸酯获得的基本上线性的聚氨酯,其分子量为400至5000,优选约500至3000,约1.5至16.5摩尔的芳族二异氰酸酯, 任选地约0.01至1摩尔的与异氰酸酯反应的单官能化合物形式的断链剂,以及约0.5至15摩尔的低分子量双功能链增长剂,其特征在于至少10摩尔% 链延长剂是2,2,4-三甲基戊二醇 - (1,3),剩余的链延长剂的分子量为62〜399(优选为62〜250),优选为二醇。 本发明还涉及制备这些聚氨酯的方法及其在柔性或非柔性基材上生产涂层的用途,其中涂层任选地被填充,优选可磁化的颜料,并且任选地是交联的。