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    • 38. 发明授权
    • Process for the production of rigid polyurethane foams
    • 生产硬质聚氨酯泡沫的方法
    • US5886062A
    • 1999-03-23
    • US904894
    • 1997-08-01
    • Karl-Werner DietrichTorsten HeinemannManfred Dietrich
    • Karl-Werner DietrichTorsten HeinemannManfred Dietrich
    • C08G18/32C08G18/48C08G18/50C08G18/66C08G101/00
    • C08G18/482C08G18/329C08G18/4891C08G18/5021C08G18/5033C08G18/6696C08G2101/0025
    • This invention provides a process for producing rigid polyurethane foams by reacting A) a polyol component with B) a polyisocyanate component in the presence of C) water, D) at least one catalyst, and, optionally, E) at least one blowing agent. This process specifically requires A) a polyol component which comprises: 1) a polyol containing at least two isocyanate-reactive hydrogen atoms and comprising: a) a mixture of i) an addition product having a OH number of at least 500 of diamines or polyamines containing primary and/or secondary amino groups with alkylene oxides, and ii) castor oil, and/or b) one or more reaction products obtained by reacting i) an addition product having a OH number of at least 500 of diamines or polyamines containing primary and/or secondary amino groups with alkylene oxides, and ii) castor oil; and 2) at least one compound containing at least two isocyanate-reactive hydrogen atoms. Suitable polyisocyanates B) for the present invention are those containing an NCO group content of from 20 to 48% by weight.
    • 本发明提供一种生产刚性聚氨酯泡沫体的方法,该方法通过在C)水,D)至少一种催化剂和任选的E)至少一种发泡剂的存在下,使A)多元醇组分与B)多异氰酸酯组分反应。 该方法特别要求A)多元醇组分,其包括:1)含有至少两个异氰酸酯反应性氢原子的多元醇,其包含:a)i)具有OH数至少为500的二胺或多胺的加成产物 含有伯和/或仲氨基与烯化氧,和ii)蓖麻油和/或b)一种或多种反应产物,其通过使i)具有OH数为至少500个的二胺或含有伯胺的多胺的加成产物 和/或具有环氧烷烃的仲氨基,和ii)蓖麻油; 和2)至少一种含有至少两个异氰酸酯反应性氢原子的化合物。 适用于本发明的多异氰酸酯B)是含有20至48重量%的NCO基团含量的那些。
    • 40. 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。