High-molecular weight polycarbodiimide solution and methods for
producing the same
    32.
    发明授权
    High-molecular weight polycarbodiimide solution and methods for producing the same 失效
    高分子量聚碳化二亚胺溶液及其制备方法

    公开(公告)号:US5416184A

    公开(公告)日:1995-05-16

    申请号:US517124

    申请日:1990-05-01

    IPC分类号: C08G73/00 C08G18/02 C08G18/00

    CPC分类号: C08G18/025

    摘要: This invention provides methods for producing a high-molecular weight polycarbodiimide solution from an organic diisocyanate in the presence of a carbodiimidation catalyst, wherein 1) a chlorinated aliphatic hydrocarbon or 2) an alicyclic ether is used as a solvent. This invention also provides a polycarbodiimide solution with excellent stability in preservation.

    摘要翻译: 本发明提供了在碳二亚胺化催化剂存在下由有机二异氰酸酯制备高分子量聚碳二亚胺溶液的方法,其中1)氯化脂族烃或2)脂环醚用作溶剂。 本发明还提供了具有优异的保存稳定性的聚碳化二亚胺溶液。

    Tetramethylxylylene carbodiimide
    33.
    发明授权
    Tetramethylxylylene carbodiimide 失效
    四甲基二亚甲基碳二亚胺

    公开(公告)号:US5360933A

    公开(公告)日:1994-11-01

    申请号:US992029

    申请日:1992-12-17

    摘要: The present invention provides a tetramethylxylylene carbodiimide represented by the following formula ##STR1## wherein R is a monoisocyanate residue and n represents an integer of 1 or more. Said carbodiimide has good storage stability owing to reduced reactivity and gives good handleability in a reaction with an active hydrogen compound.

    摘要翻译: 本发明提供由下式“IMAGE”表示的四甲基亚二甲苯基碳化二亚胺,其中R是单异氰酸酯残基,n表示1以上的整数。 所述碳化二亚胺由于反应性降低而具有良好的储存稳定性,并且在与活性氢化合物的反应中具有良好的操作性。

    Polyurethane resins
    38.
    发明授权
    Polyurethane resins 失效
    聚氨酯树脂

    公开(公告)号:US6153718A

    公开(公告)日:2000-11-28

    申请号:US338508

    申请日:1999-06-23

    摘要: A polyurethane resin obtained from a diol component and a diisocyanate component by an ordinary process, wherein the diisocyanate component comprises:at least one kind of unmodified diisocyanate, andat least one kind of carbodiimide-modified aromatic diisocyanate having, at one or both of the ortho positions of the two isocyanate groups, an aliphatic, alicyclic or aromatic substituent of one or more carbon atoms, or at least one kind of carbodiimide-modified aliphatic diisocyanate wherein at least one of the two carbons each bonded with an isocyanate group is di- or tri-substituted, and the molar ratio of the unmodified diisocyanate and the carbodiimide-modified diisocyanate is 35-0.1:1. The polyurethane resin containing carbodiimide bonds in the molecular chain alleviates the problems of the prior art and exhibits hydrolysis resistance stably over a long period of time without losing the carbodiimide bonds out of the molecule.

    摘要翻译: 通过常规方法由二醇组分和二异氰酸酯组分得到的聚氨酯树脂,其中所述二异氰酸酯组分包括:至少一种未改性的二异氰酸酯和至少一种碳二亚胺改性的芳族二异氰酸酯,所述二异氰酸酯在一个或两个 两个异氰酸酯基的邻位,一个或多个碳原子的脂族,脂环族或芳族取代基,或至少一种碳二亚胺改性的脂族二异氰酸酯,其中每个与异氰酸酯基团键合的两个碳中的至少一个是二 或三取代,未改性二异氰酸酯与碳二亚胺改性二异氰酸酯的摩尔比为35〜0.1:1。 在分子链中含有碳二亚胺键的聚氨酯树脂缓解了现有技术的问题,并且在长时间内稳定地表现出耐水解性,而不会损失分子内的碳二亚胺键。

    Mixture of hydrophilic dicyclohexylmethanecarbodiimide
    39.
    发明授权
    Mixture of hydrophilic dicyclohexylmethanecarbodiimide 有权
    亲水性二环己基甲烷碳二亚胺的混合物

    公开(公告)号:US06121406A

    公开(公告)日:2000-09-19

    申请号:US292005

    申请日:1999-04-15

    摘要: A hydrophilic dicyclohexylmethanecarbodiimide represented by the formula (1): wherein n is an integer of 1 to 10 and R.sup.1 is a residue of a mixture of organic compounds of different hydrophilicities each having at least one hydroxyl group capable of reacting with an isocyanate group. The hydrophilic dicyclohexylmethanecarbodiimide is improved in reactivity and storage stability, and is thereby easy to handle as a crosslinking agent for hydrophilic resins.

    摘要翻译: 由式(1)表示的亲水性二环己基甲烷碳化二亚胺:其中n为1〜10的整数,R 1为具有至少一个能够与异氰酸酯基反应的羟基的不同亲水性的有机化合物的混合物的残基。 亲水性二环己基甲烷碳化二亚胺的反应性和保存稳定性提高,因此易于作为亲水性树脂的交联剂使用。

    Epoxy resin composition
    40.
    发明授权
    Epoxy resin composition 失效
    环氧树脂组合物

    公开(公告)号:US6103836A

    公开(公告)日:2000-08-15

    申请号:US311721

    申请日:1999-05-14

    CPC分类号: C08G18/095 H05K1/0346

    摘要: An epoxy resin composition comprising(1) an epoxy resin,(2) a polymer obtained by reacting a polycarbodiimide with a compound having, in the molecule, at least one group reactive with carbodiimide group, between the carbodiimide group of said polycarbodiimide and the group reactive with carbodiimide group, of said compound, and(3) a curing agent for epoxy resin.The above epoxy resin composition alleviates the problems of the prior art; has a long pot life in a solution state, has an appropriate gelling time and accordingly good workability, is superior in film formability and handleability in B-stage, and has high heat resistance after curing; therefore, is suitably used in printed wiring board, prepreg, etc.

    摘要翻译: 一种环氧树脂组合物,其包含(1)环氧树脂,(2)聚碳二亚胺与分子中具有至少一个与碳二亚胺基反应的基团的化合物与所述聚碳化二亚胺的碳二亚胺基团和基团 与所述化合物的碳二亚胺基团反应,和(3)环氧树脂的固化剂。 上述环氧树脂组合物减轻了现有技术的问题; 在溶液状态下具有较长的适用期,具有合适的胶凝时间,因此具有良好的可加工性,在B阶段的成膜性和操作性优异,固化后耐热性高; 因此适用于印刷线路板,预浸料等