Liquid 1,3-phenylene diisocyanate, 1,1'-biphenyl diisocyanate and
1,1'-oxy-bis-(isocyanato-benzene)
    21.
    发明授权
    Liquid 1,3-phenylene diisocyanate, 1,1'-biphenyl diisocyanate and 1,1'-oxy-bis-(isocyanato-benzene) 失效
    液体1,3-亚苯基二异氰酸酯,1,1'-联苯二异氰酸酯和1,1'-氧 - 双 - (异氰酸根合苯)

    公开(公告)号:US5648445A

    公开(公告)日:1997-07-15

    申请号:US577999

    申请日:1995-12-22

    摘要: Allophanate-modified 1,3-phenylene diisocyanates or 1,1-biphenyl diisocyanates or 1,1'-oxy-bis-(isocyanato benzenes) which are storage stable liquid at 25.degree. C. are made by reacting the diisocyanate and a mono-alcohol to form an isocyanate containing urethane groups. The urethane groups in the diisocyanate are then converted to allophanate groups. The resultant product which has an isocyanate group content of from about 10 to about 40% may be further reacted with isocyanate-reactive compounds to produce an allophanate-modified diisocyanate prepolymer containing urethane or urea groups having an isocyanate group content of from about 5 to about 40.0%. The liquid, storage-stable, allophanate-modified diisocyanates produced by these processes are particularly useful in the production of elastomers and flexible foams.

    摘要翻译: 在25℃保存稳定液体的脲基甲酸酯改性的1,3-亚苯基二异氰酸酯或1,1-二苯基二异氰酸酯或1,1'-氧 - 双 - (异氰酸根合苯)是通过使二异氰酸酯与单 - 醇形成含有氨基甲酸酯基团的异氰酸酯。 然后将二异氰酸酯中的氨基甲酸酯基团转化为脲基甲酸酯基团。 具有约10至约40%异氰酸酯基含量的所得产物可以进一步与异氰酸酯反应性化合物反应,以制备含有异氰酸酯基含量为约5至约约的聚氨酯或脲基的脲基甲酸酯改性的二异氰酸酯预聚物 40.0%。 通过这些方法制备的液体,储存稳定的脲基甲酸酯改性的二异氰酸酯特别可用于生产弹性体和柔性泡沫。

    Ether-linked amine-terminated polyethers and a process for their
production
    22.
    发明授权
    Ether-linked amine-terminated polyethers and a process for their production 失效
    醚连接的胺封端的聚醚及其制备方法

    公开(公告)号:US5510535A

    公开(公告)日:1996-04-23

    申请号:US343295

    申请日:1994-11-22

    摘要: Ether-linked amine-terminated polyethers are produced by reacting (1) a polyether polyol in which substantially all of the hydroxyl groups have been replaced with good leaving groups with (2) an aminoalcohol and/or aminothiol and (3) a deprotonating agent. The aminopolyethers obtained by this process are characterized by low viscosities and excellent reactivities over a wide range of molecular weights and functionalities.

    摘要翻译: 醚连接的胺封端的聚醚是通过使(1)聚醚多元醇(其中基本上所有的羟基已经被良好的离去基团取代)与(2)氨基醇和/或氨基硫醇和(3)去质子化剂反应而制备的。 通过该方法获得的氨基聚醚的特征在于在宽范围的分子量和功能上的低粘度和优异的反应性。

    Urea and biuret prepolymers of MDI
    23.
    发明授权
    Urea and biuret prepolymers of MDI 失效
    MDI的尿素和缩二脲预聚物

    公开(公告)号:US5212275A

    公开(公告)日:1993-05-18

    申请号:US957498

    申请日:1992-10-07

    摘要: Disclosed herein is a liquid isocyanate prepolymer having an isocyanate group content of from 10 to 30% by weight, prepared by reacting:i) a polyfunctional secondary amine group containing material of the general formula: ##STR1## wherein R represents alkyl, alkenyl, cycloalkyl, aralkyl or aryl radical:A represents an organic radical having a molecular weight between 28 and 6000 and having a functionality of m andm represents an integer from 2 to 6;withii) an isocyanate mixture comprising:a) from 50 to 100% by weight of diphenylmethane diisocyanate of which from 2 to 50% by weight consist of 2,2'- and 2,4'-isomers; andb) the balance being polyphenylpolymethylene polyisocyanates.

    摘要翻译: 本文公开了具有10至30重量%的异氰酸酯基含量的液体异氰酸酯预聚物,其通过以下反应制备:i)含多官能仲胺基团的材料,其通式如下:其中R表示烷基,烯基,环烷基 芳烷基或芳基:A表示分子量为28至6000且官能度为m且m表示2至6的整数的有机基团; 其中ii)异氰酸酯混合物,其包含:a)50至100重量%的二苯基甲烷二异氰酸酯,其中2-50重量%由2,2'-和2,4'-异构体组成; 和b)余量为聚苯基聚亚甲基多异氰酸酯。

    Liquid MDI adducts wtih improved freeze stability
    25.
    发明授权
    Liquid MDI adducts wtih improved freeze stability 失效
    液体MDI加合物改善了冻结稳定性

    公开(公告)号:US06482913B1

    公开(公告)日:2002-11-19

    申请号:US09499316

    申请日:2000-02-07

    IPC分类号: C08G1870

    CPC分类号: C08G18/7664 C08G18/725

    摘要: This invention relates to liquid polyisocyanate compositions having improved freeze stability. These liquid polyisocyanate compositions have an NCO group content of 15 to 30%, and comprise (A) an allophanate-modified MDI and having an NCO group content of 16 to 32.5%, (B) a low molecular weight branched aliphatic dihydroxy compound, and (C) an epoxide functional compound which is present in an amount of 0.01 to 1% by weight, based on the combined weight of components (A) and (B).

    摘要翻译: 本发明涉及具有改进的冷冻稳定性的液体多异氰酸酯组合物 这些液体多异氰酸酯组合物的NCO基含量为15〜30%,并且含有(A)脲基甲酸酯改性MDI,NCO基含量为16〜32.5%,(B)低分子量支链脂肪族二羟基化合物,以及 (C)基于组分(A)和(B)的组合重量,以0.01至1重量%的量存在的环氧官能化合物。

    Toluene diisocyanate residue-based compositions having reduced acid
values
    27.
    发明授权
    Toluene diisocyanate residue-based compositions having reduced acid values 失效
    基于甲苯二异氰酸酯残基的组合物具有降低的酸值

    公开(公告)号:US5837794A

    公开(公告)日:1998-11-17

    申请号:US958282

    申请日:1997-10-27

    摘要: TDI residue-based urethane-filled isocyanate compositions are produced by reacting a TDI residue satisfying specified criteria with a monofunctional alcohol in amounts such that the equivalent ratio of isocyanate groups to hydroxyl groups is from about 0.9:1 to about 1:0.9. This reaction product is then dissolved in a diisocyanate or polyisocyanate before, during or after reaction of that product with an epoxide having an epoxide equivalent weight of from about 44 to about 400 at a temperature of up to 120.degree. C. These TDI residue-based urethane-filled isocyanate compositions are particularly useful in the production of polyurethanes.

    摘要翻译: 通过使满足特定标准的TDI残基与单官能醇反应,使得异氰酸酯基与羟基的当量比为约0.9:1至约1:0.9来制备TDI残余物聚氨酯填充的异氰酸酯组合物。 然后在高达120℃的温度下,该反应产物在该产物与环氧当量为约44至约400的环氧化物反应之前,期间或之后溶解在二异氰酸酯或多异氰酸酯中。这些基于TDI残基 聚氨酯填充的异氰酸酯组合物特别可用于生产聚氨酯。

    Freeze stable allophanate-modified toluene diisocyanate trimers
    30.
    发明授权
    Freeze stable allophanate-modified toluene diisocyanate trimers 失效
    冷冻稳定的脲基甲酸酯改性甲苯二异氰酸酯三聚体

    公开(公告)号:US6063891A

    公开(公告)日:2000-05-16

    申请号:US375842

    申请日:1999-08-16

    摘要: This invention relates to a novel freeze-stable allophanate modified toluene diisocyanurates, and to a process for producing these freeze-stable allophanate-modified toluene diisocyanurates which requires a catalyst which is capable of forming both trimer and allophanate groups, or a catalyst system comprising at least one catalyst capable of forming trimer groups and at least one catalyst capable of forming allophanate groups. This invention also relates to novel freeze-stable blends of the allophanate-modified toluene diisocyanurates with di- and/or polyisocyanates of the diphenylmethane series; and to freeze-stable urethane prepolymers of the allophanate-modified toluene diisocyanurates, or the blends of these with an isocyanate of the diphenylmethane series.

    摘要翻译: 本发明涉及一种新型的冷冻稳定的脲基甲酸酯改性的甲苯二异氰脲酸酯,以及制备这种冷冻稳定的脲基甲酸酯改性的甲苯二异氰酸酯的方法,其需要能够形成三聚体和脲基甲酸酯基团的催化剂,或者包含 能够形成三聚体基团的至少一种催化剂和能够形成脲基甲酸酯基团的至少一种催化剂。 本发明还涉及脲基甲酸酯改性的甲苯二异氰脲酸酯与二苯基甲烷系列的二 - 和/或多异氰酸酯的新型冷冻稳定共混物; 以及脲基甲酸酯改性的甲苯二异氰脲酸酯的冷冻稳定的氨基甲酸酯预聚物,或它们与二苯基甲烷系列的异氰酸酯的共混物。