Preparation of polyurethane from bis(cyclic urea) and polymeric polyol
    1.
    发明授权
    Preparation of polyurethane from bis(cyclic urea) and polymeric polyol 失效
    由双(环脲)和聚合多元醇制备聚氨酯

    公开(公告)号:US4410689A

    公开(公告)日:1983-10-18

    申请号:US389090

    申请日:1982-06-16

    摘要: Bis(cyclic ureas) are disclosed which have the formula ##STR1## wherein R is ##STR2## and C.sub.n H.sub.2n is ethylene or 1,3-propylene each of which can be substituted by one or more inert substituents.These compounds are useful as masked diisocyanates which, on heating in the presence of a polyol and, optionally, a polyurethane catalyst, give rise to polyurethane resins. Accordingly, they are useful as a component of storage stable compositions which are convertible to polyurethanes upon heating. Such compositions are particularly useful as solvent-less coating compositions. The properties of the above compounds are distinguished in a number of respects from the known bis(cyclic ureas) in which C.sub.n H.sub.2n has 4 or more carbon atoms in the chain between the valencies. Illustratively, the above compounds are more stable on exposure to heat in the absence of catalysts but, in the presence of polyurethane catalysts, react with polyols at a significantly faster rate than the prior art compounds.

    摘要翻译: 公开了具有式“IMAGE”的双(环脲),其中R为“IMA”,C n H 2n为乙烯或1,3-亚丙基,各自可被一个或多个惰性取代基取代。 这些化合物可用作掩蔽的二异氰酸酯,其在多元醇和任选的聚氨酯催化剂存在下加热时产生聚氨酯树脂。 因此,它们可用作储存稳定组合物的组分,其可在加热时转化为聚氨酯。 这样的组合物特别可用作无溶剂涂料组合物。 上述化合物的性质在许多方面与众所周知的双(环脲)有关,其中C n H 2n在链中具有4个或更多个碳原子。 说明性地,上述化合物在不存在催化剂的情况下在暴露于热下更稳定,但是在聚氨酯催化剂的存在下,与多元醇以比现有技术化合物更快的速率反应。

    Bis(cyclic ureas) monomer compositions useful in making polyurethane
polymers
    2.
    发明授权
    Bis(cyclic ureas) monomer compositions useful in making polyurethane polymers 失效
    用于制备聚氨酯聚合物的双(环脲)单体组合物

    公开(公告)号:US4349663A

    公开(公告)日:1982-09-14

    申请号:US205632

    申请日:1980-11-10

    摘要: Bis(cyclic ureas) are disclosed which have the formula ##STR1## wherein R is ##STR2## and C.sub.n H.sub.2n is ethylene or 1,3-propylene each of which can be substituted by one or more inert substituents.These compounds are useful as masked diisocyanates which, on heating in the presence of a polyol and, optionally, a polyurethane catalyst, give rise to polyurethane resins. Accordingly, they are useful as a component of storage stable compositions which are convertible to polyurethanes upon heating. Such compositions are particularly useful as solvent-less coating compositions. The properties of the above compounds are distinguished in a number of respects from the known bis(cyclic ureas) in which C.sub.n H.sub.2n has 4 or more carbon atoms in the chain between the valencies. Illustratively, the above compounds are more stable on exposure to heat in the absence of catalysts but, in the presence of polyurethane catalysts, react with polyols at a significantly faster rate than the prior art compounds.

    摘要翻译: 公开了具有式“IMAGE”的双(环脲),其中R为“IMA”,C n H 2n为乙烯或1,3-亚丙基,各自可被一个或多个惰性取代基取代。 这些化合物可用作掩蔽的二异氰酸酯,其在多元醇和任选的聚氨酯催化剂存在下加热时产生聚氨酯树脂。 因此,它们可用作储存稳定组合物的组分,其可在加热时转化为聚氨酯。 这样的组合物特别可用作无溶剂涂料组合物。 上述化合物的性质在许多方面与众所周知的双环(环脲)有关,其中C n H 2n在链中具有4个或更多个碳原子。 说明性地,上述化合物在不存在催化剂的情况下在暴露于热下更稳定,但是在聚氨酯催化剂的存在下,与多元醇以比现有技术化合物更快的速率反应。

    Process for nitrating aromatic hydrocarbons
    3.
    发明授权
    Process for nitrating aromatic hydrocarbons 失效
    硝化芳烃的方法

    公开(公告)号:US4123466A

    公开(公告)日:1978-10-31

    申请号:US859388

    申请日:1977-12-12

    CPC分类号: C07C201/08

    摘要: An improved process for the nitration of aromatic hydrocarbons is described. The aromatic hydrocarbon (benzene, toluene of particular interest) is reacted with gaseous nitrogen dioxide in the presence of a catalytic amount of sulfuric acid and in the absence of oxygen. The process is highly selective and avoids the formation of undesired by-products. The acid employed as catalyst can be recovered and recycled after removal of water of condensation liberated in the reaction.

    摘要翻译: 描述了用于芳烃的硝化的改进方法。 在催化量的硫酸存在下,在不存在氧气的情况下,使芳烃(特别令人关注的苯,甲苯)与气体二氧化氮反应。 该方法具有高选择性,避免了不希望的副产物的形成。 用作催化剂的酸可以在除去在反应中释放的冷凝水中回收和再循环。

    Process for the autoxidation of cyclohexylbenzene to form
cyclohexylbenzene hydroperoxide
    4.
    发明授权
    Process for the autoxidation of cyclohexylbenzene to form cyclohexylbenzene hydroperoxide 失效
    环己基苯自身氧化形成环己基苯氢过氧化物的方法

    公开(公告)号:US4282383A

    公开(公告)日:1981-08-04

    申请号:US861757

    申请日:1977-12-19

    摘要: Cyclohexylbenzene and dicyclohexylbenzenes are converted to the corresponding hydroperoxides in the presence of t-butyl, cumene, or p-diisopropylbenzene hydroperoxides and a free radical initiator. The use of the combination of hydroperoxide and free radical initiator enables the reaction to be carried out at lower temperatures (80.degree.-105.degree. C.) than can be employed with hydroperoxides or free radical initiators alone and gives high (90%) selectivity and good conversion (20% or higher).

    摘要翻译: 在叔丁基异丙基苯或对二异丙基苯氢过氧化物和自由基引发剂存在下,将环己基苯和二环己基苯转化为相应的氢过氧化物。 使用氢过氧化物和自由基引发剂的组合使得反应可以在比单独使用氢过氧化物或自由基引发剂的较低温度(80-105℃)下进行,并且具有高(90%)选择性和 良好转换(20%以上)。

    Process for the production of organic polyisocyanate-based molded
polymers
    6.
    发明授权
    Process for the production of organic polyisocyanate-based molded polymers 失效
    用于生产有机多异氰酸酯的模塑聚合物的方法

    公开(公告)号:US4764330A

    公开(公告)日:1988-08-16

    申请号:US794989

    申请日:1985-11-04

    摘要: An improved process for the production of organic polyisocyanate-based molded polymers prepared from at least one organic polyisocyanate and at least one polyol wherein there is employed an internal mold release agent comprising an amino-polysiloxane having at least one group of the formulaRNH-alkylene-O-bonded to a silicon atom of a polysiloxane, wherein R is selected from the group consisting of hydrogen, lower-alkyl, cycloalkyl, and ECHR"CHR'- wherein E is an electron withdrawing group and R' and R" are independently selected from the group consisting of hydrogen and methyl. The molding process can be repeated many times before the mold surfaces must be cleaned or treated with release agent. The ease of release of the molded polyurethanes makes the process particularly suitable for RIM production methods.

    摘要翻译: 一种用于生产由至少一种有机聚异氰酸酯和至少一种多元醇制备的有机多异氰酸酯基模制聚合物的改进方法,其中使用内部脱模剂,其包含具有至少一个式RNH-亚烷基的氨基 - 聚硅氧烷 -O-键合到聚硅氧烷的硅原子上,其中R选自氢,低级烷基,环烷基和ECHR'CHR',其中E是吸电子基团,R'和R“ 独立地选自氢和甲基。 在模具表面必须用脱模剂清洁或处理之前,可以重复成型过程多次。 模制聚氨酯的易释放使得该方法特别适用于RIM生产方法。

    Capping of polyols with aromatic amines
    7.
    发明授权
    Capping of polyols with aromatic amines 失效
    用芳香胺封端多元醇

    公开(公告)号:US4847416A

    公开(公告)日:1989-07-11

    申请号:US35121

    申请日:1987-04-06

    摘要: Disclosed is a class of poly(aminoaromatic) compounds (I) obtained by capping polymeric polyols or polythiols with aromatic amine groups wherein the latter groups are linked by --O--or --S--to the polyol (polythiol) residues. Also disclosed are the precursor poly(nitroaromatic) compounds (II) from which the compounds (I) are derived.The polyamines are characterized by amine reactivities in respect of isocyanate polyaddition reactions which allows for polymer reaction rates that are intermediate of prior art related polyamine compounds.Accordingly, the compounds (I) find their prime utility in the formation of synthetic resins containing polyurea linkages.

    摘要翻译: 公开了一类通过用芳族胺基封端聚合多元醇或多硫醇获得的聚(氨基芳族化合物)(I),其中后者通过-O - 或-S-连接到多元醇(多硫醇)残基。 还公开了衍生化合物(I)的前体聚(硝基芳族化合物)(II)。 多胺的特征在于在异氰酸酯加聚反应方面的胺反应性,其允许聚合物反应速率是现有技术相关的多胺化合物的中间体。 因此,化合物(I)在形成含有聚脲键的合成树脂方面起主导作用。

    Product
    8.
    发明授权
    Product 失效
    产品

    公开(公告)号:US4570010A

    公开(公告)日:1986-02-11

    申请号:US478128

    申请日:1983-03-23

    摘要: Disclosed is an improved process for the production of organic polyisocyanate-based molded polymers prepared from at least one organic polyisocyanate and at least one polyol wherein there is employed an internal mold release agent comprising an amino-polysiloxane having at least one group of the formulaRNH-alkylene--O--bonded to a silicon atom of a polysiloxane, wherein R is selected from the group consisting of hydrogen, lower-alkyl, cycloalkyl, and ECHR"CHR'-- wherein E is an electron withdrawing group and R' and R" are independently selected from the group consisting of hydrogen and methyl.The molding process can be repeated many times before the mold surfaces must be cleaned or treated with release agent. The ease of release of the molded polyurethanes makes the process particularly suitable for RIM production methods.

    摘要翻译: 公开了一种用于生产由至少一种有机多异氰酸酯和至少一种多元醇制备的有机多异氰酸酯基模制聚合物的改进方法,其中使用内部脱模剂,其包含具有至少一个式RNH的氨基 - 聚硅氧烷 - 亚烷基-O-键合到聚硅氧烷的硅原子上,其中R选自氢,低级烷基,环烷基和ECHR'CHR',其中E是吸电子基团,R'和R “独立地选自氢和甲基。 在模具表面必须用脱模剂清洁或处理之前,可以重复成型过程多次。 模制聚氨酯的易释放使得该方法特别适用于RIM生产方法。

    Low VOC, heat-curable, one-component and two-component coating
compositions based on organic polyisocyanates
    9.
    发明授权
    Low VOC, heat-curable, one-component and two-component coating compositions based on organic polyisocyanates 失效
    基于有机多异氰酸酯的低VOC,可热固化的单组分和双组分涂料组合物

    公开(公告)号:US6133397A

    公开(公告)日:2000-10-17

    申请号:US296628

    申请日:1994-08-26

    摘要: The present invention relates to a process for coating a substrate which comprises (a) contacting said substrate with a low volatility organic (so-called "low VOC") coating composition having a viscosity as measured by ZAHN cup 2 of less than about 200 seconds and consisting essentially of at least one polyisocyanate, a solvent in an amount of between 0% and 45% by weight based upon the amount of said polyisocyanate in said composition, and an trimerization catalyst, said composition being essentially free of any volatile mono- and di-isocyanates, to form a coating on said substrate, and (b) heating said coating to a curing temperature of between 120.degree. F. and 350.degree. F. for a curing time of between about ten minutes and about six hours in order to cure said coating by trimerizing at least some of the isocyanate groups of the polyisocyanate to provide a heat-cured coating on said substrate. Also claimed is the coating composition itself.

    摘要翻译: 本发明涉及一种用于涂覆基材的方法,其包括(a)使所述基材与低挥发性有机(所谓的“低VOC”)涂料组合物接触,所述低挥发性有机(所谓的“低VOC”)涂料组合物具有通过ZAHN杯2测量的粘度小于约200秒 并且基本上由至少一种多异氰酸酯,基于所述组合物中所述多异氰酸酯的量的0重量%至45重量%的量的溶剂和三聚催化剂组成,所述组合物基本上不含任何挥发性单 - 和 二异氰酸酯,以在所述基材上形成涂层,和(b)将所述涂层加热到120°F至350°F的固化温度,固化时间为约10分钟至约6小时,以便于 通过三聚多异氰酸酯的至少一些异氰酸酯基团来使所述涂层固化以在所述基材上提供热固化涂层。 还要求的是涂料组合物本身。