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    • 3. 发明授权
    • Process for preparing polyurethane with integral skin
    • 制备具有整体皮肤的聚氨酯的方法
    • US4150206A
    • 1979-04-17
    • US776700
    • 1977-03-11
    • Lucien JourquinEddie Du Prez
    • Lucien JourquinEddie Du Prez
    • C10B39/02C08G18/00C08G18/16C08G18/18C08G18/22C08G18/26C08G18/14
    • C08G18/22C08G18/163C08G18/26C08G2101/0033C08G2101/0066C08G2120/00
    • A process for preparing polyurethane with integral skin, wherein a composition comprising following ingredients: polyol, polyisocyanate, at most one part by weight of water to 100 parts by weight of polyol and catalyst, is reacted in a mould so that a polyurethane is formed, characterized in that one uses a polyisocyanate the NCO groups of which are not directly bonded to an aromatic group and, as catalyst, at least one of the following four synergistic combinations:(1) at least an amine containing the structure: ##STR1## in association with at least an alkali metal or alkaline-earth metal salt, alcoholate and/or phenolate of an acid the dissociation constant of which Ka.ltoreq.10.sup.-1, preferably Ka.ltoreq.10.sup.-2 ;(2) at least an organic lead compound in association with at least an organic initiator comprising at least one functional group of primary or secondary amine;(3) at least an organic lead compound in association with at least an amine containing the structure: ##STR2## or, (4) AT LEAST AN ORGANIC LEAD COMPOUND IN ASSOCIATION WITH AT LEAST AN ALKALI OR ALKALINE-EARTH METAL SALT, ALCOHOLATE AND/OR PHENOLATE OF AN ACID THE DISSOCIATION CONSTANT OF WHICH Ka.ltoreq.10.sup.-1 preferably Ka.ltoreq.10.sup.-2.
    • 一种制备具有整体皮肤的聚氨酯的方法,其中将包含以下成分的多元醇,多异氰酸酯,至多1重量份水至100重量份多元醇和催化剂的组合物在模具中反应,从而形成聚氨酯, 其特征在于,使用其NCO基团不直接键合到芳族基团上的多异氰酸酯和作为催化剂的以下四种协同组合中的至少一种的多异氰酸酯:
    • 7. 发明授权
    • Method for preparing and applying a sprayable, light stable polyurethane
    • 制备和应用可喷涂的轻质聚氨酯的方法
    • US5656677A
    • 1997-08-12
    • US485140
    • 1995-06-07
    • Lucien JourquinEddie Du Prez
    • Lucien JourquinEddie Du Prez
    • C08G18/16C08G18/22C08G18/24C08G18/26C08J9/00
    • C08G18/227C08G18/161C08G18/246C08G18/26C08G2150/50C08G2150/60
    • A method for preparing a light stable polyurethane, sprayable by means of a spray pistol, wherein use is made of an active hydrogen containing compound, wherein the functional groups consist for at least 50% of an active CH.sub.2 OH, NH and/or NH.sub.2 group, the functionality of which varies from 2 to 8 and the equivalent weight of which is comprised between 100 and 3500, together with 2 to 300 parts, per 100 parts of said compounds of a chain extender and/or a cross-linker, the functional groups of which are OH groups, at least 50% of which are primary OH groups, the equivalent weight of which is less than 100 and the functionality of which varies from 2 to 6, and with a catalytic system which comprises at least an organic lead, bismuth and/or tin (IV) compound and at least an amine initiator, having a functionality of 2 to 6, an equivalent weight lower than or equal to 200, and at least one aliphatic NH.sub.2 or NH group.
    • 一种制备可通过喷雾手枪喷雾的轻质稳定聚氨酯的方法,其中使用含活性氢的化合物,其中所述官能团由至少50%的活性CH 2 OH,NH和/或NH 2基组成, 其功能从2至8变化,其当量重量在100至3500之间,连同2至300份,每100份所述化合物的扩链剂和/或交联剂,官能团 其中OH基团中的至少50%是伯OH基团,其当量小于100且官能度为2-6,催化体系至少包含有机铅, 铋和/或锡(IV)化合物和至少一种官能度为2-6,当量重量小于等于200的胺引发剂和至少一种脂族NH 2或NH基团。