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73 条记录 (耗时 0.019 秒)

    Process for producing fiber-reinforced molded products
    1.
    发明授权
    Process for producing fiber-reinforced molded products 失效

    公开(公告)号：US4405752A

    公开(公告)日：1983-09-20

    申请号：US192389

    申请日：1980-09-30

    申请人： Klaus Recker ,  Gerd Reinecke ,  Albert Awater ,  Gerhard Grogler ,  Karl J. Kraft

    发明人： Klaus Recker ,  Gerd Reinecke ,  Albert Awater ,  Gerhard Grogler ,  Karl J. Kraft

    IPC分类号： C08J5/24 ,  B29C43/02 ,  B29C43/10 ,  B29C43/12 ,  B29C57/00 ,  B29C67/00 ,  B29C70/00 ,  C08G18/72 ,  C08K7/02 ,  C08L75/04

    CPC分类号： C08G18/721 ,  C08K7/02

    摘要： The instant invention is directed to a process for the production of fiber-reinforced molded products, comprising:(1) mixing at a temperature of from 10.degree. to 50.degree. C.,(a) 7 to 35% by weight of a polyisocyanate having a melting point above 100.degree. C., and(b) 14 to 35% by weight of a polyisocyanate which is liquid at the reaction temperature of mixing, with(c) 43 to 62% by weight of one or more compounds having molecular weights of 300 to 10,000 containing 2 to 8 hydroxyl groups, and(d) 3 to 10% by weight of a chain-lengthening agent having a molecular weight of 62 to 250 containing 2 to 4 hydroxyl groups,(e) 0 to 5% by weight of a compound having a molecular weight below 1,000 containing from 2 to 4 amino groups or an equivalent quantity of water,(f) 0 to 5% by weight of a molecular sieve of the sodium aluminum silicate type, and(g) 0 to 5% by weight of one or more activators, all percentages being based on the total weight of (a) through (g) and components (b) through (e) being liquid at the chosen reaction temperature of mixing and having an average functionality of isocyanate-reactive groups of 2.5 to 3.5, the equivalent ratio of isocyanate groups in component (b) to isocyanate-reactive hydrogen atoms in components (c) through (e) being from 0.4:1 to 0.85:1 and the equivalent ratio of isocyanate groups in component (a) to isocyanate-reactive hydrogen atoms in components (c) through (e), taking into account any masked isocyanate groups being from 0.15:1 to 1.2:1, with the proviso that the average functionality of components (c) through (e) should be at least 2.65 when the first-mentioned equivalent ratio is less than or equal to 0.65:1 and not more than 3.0 when the equivalent ratio is greater than or equal to 0.70:1;(2) adding a fiber material having a fiber length of from 10 to 100 mm; and(3) after storing for from one hour to four days, curing and shaping the molding compound at a temperature above 90.degree. C. and at a pressure of from 20 to 300 bars.

    Solvent-free polyurethanes with fibrous reinforcing agents
    4.
    发明授权
    Solvent-free polyurethanes with fibrous reinforcing agents 失效
    无溶剂的聚氨酯与纤维增强剂

    公开(公告)号：US4336180A

    公开(公告)日：1982-06-22

    申请号：US246816

    申请日：1981-03-23

    申请人： Klaus Recker ,  Gerhard Grogler

    发明人： Klaus Recker ,  Gerhard Grogler

    IPC分类号： C08G18/00 ,  C08G18/08 ,  C08G18/10 ,  C08K3/34 ,  C08K7/02 ,  C08L67/00 ,  C08L75/00 ,  C08L77/00 ,  C08L75/12

    CPC分类号： C08G18/10 ,  C08G18/0838 ,  C08K7/02

    摘要： The instant invention is directed to a substantially solvent-free molding material, comprising(A) from 92 to 30% by weight, of an active-hydrogen containing prepolymer containing: from 0.3 to 4% by weight, based on the prepolymer, of free primary and/or secondary amino groups, from 1.5 to 10% by weight, based on the prepolymer, of urethane groups, and from 1.5 to 10% by weight, based on the prepolymer, of urea groups;(B) from 24 to 1% by weight of a polyisocyanate having a melting point above 120.degree. C.; and(C) from 5 to 69% by weight of an organic or inorganic fibrous material with a fiber length of from 0.1 to 100 mm, the equivalent ratio between NCO groups, including masked NCO groups, and active H-atoms of components (A) and (B) is between 1:1 and 1:1.75. The instant invention is also directed to a process for the production of the substantially solvent-free molding material.

    摘要翻译： 本发明涉及基本无溶剂的模塑材料，其包含（A）92至30重量％的含活性氢的预聚物，其包含：基于预聚物的0.3至4重量％的游离 初级和/或仲氨基，基于预聚物的1.5至10重量％的氨基甲酸酯基，和基于预聚物的基于预聚物的1.5至10重量％的脲基; （B）24〜1重量％的熔点高于120℃的多异氰酸酯。 和（C）5至69重量％的纤维长度为0.1至100mm的有机或无机纤维材料，NCO基团（包括掩蔽的NCO基团）和组分的活性H原子（A ）和（B）在1:1至1: 1.75之间。 本发明还涉及生产基本上无溶剂的成型材料的方法。

    Process for the preparation of polyurethane casting elastomers
    5.
    发明授权
    Process for the preparation of polyurethane casting elastomers 失效
    制备聚氨酯浇铸弹性体的方法

    公开(公告)号：US4263423A

    公开(公告)日：1981-04-21

    申请号：US057936

    申请日：1979-07-16

    申请人： Jurgen Schwindt ,  Holger Meyborg ,  Gerhard Grogler ,  Klaus Recker

    发明人： Jurgen Schwindt ,  Holger Meyborg ,  Gerhard Grogler ,  Klaus Recker

    IPC分类号： C08G18/00 ,  C08G18/22 ,  C08G18/72 ,  C08G18/73 ,  C08G18/16 ,  C08G18/24 ,  C08G18/26

    CPC分类号： C08G18/72 ,  C08G18/22

    摘要： The instant invention is directed to a process for the production of a light fast, transparent polyurethane elastomer comprising reacting:(A) from 90 to 50% by weight, based on the polyurethane solids content, of a compound having a molecular weight of from 400 to 10,000 which has at least two Zerewitinoff active hydrogen atoms;(B) from 50 to 10% by weight, based on the polyurethane solids content, of an aliphatic and/or alicyclic polyisocyanate; and(C) from 0 to 20% by weight, based on the polyurethane solids content, of a chain-lengthening agent having a molecular weight of from 60 to 400; in the presence of:(D) catalysts for the isocyanate polyaddition reaction, the improvement wherein said catalysts, component (D), is a catalyst combination of:(a) an alkali metal hydroxide and/or alkaline earth metal hydroxide; and(b) an organometallic compound selected from the group consisting of the acetyl acetonate of iron, C.sub.1 -C.sub.8 alcoholates, phenolates, enolates and/or acetyl acetonates of metals of the 4th main group or sulfur-containing compounds of metals of the 4th main group, in which compounds the sulfur is directly attached to the metal atom.

    摘要翻译： 本发明涉及一种生产轻质，透明的聚氨酯弹性体的方法，包括使（A）基于聚氨酯固体含量的90至50重量％的分子量为400的化合物 至10,000具有至少两个Zerewitinoff活性氢原子; （B）基于聚氨酯固体含量为50至10重量％的脂族和/或脂环族多异氰酸酯; 和（C）基于聚氨酯固体含量为0至20重量％的分子量为60至400的链延长剂; 在（D）用于异氰酸酯加聚反应的催化剂的存在下，其中所述催化剂组分（D）是以下的催化剂组合：（a）碱金属氢氧化物和/或碱土金属氢氧化物; 和（b）选自第四主要金属的第四主要金属的第四主要金属的乙酰丙酮酸铁，C 1 -C 8醇盐，酚盐，烯醇化物和/或乙酰丙酮化物的有机金属化合物或第四主要金属的含硫化合物 基团，其中化合物硫直接连接到金属原子上。

    Polyhydroxy compounds containing urea groups and either ester or amide groups, process for their preparation, and the use thereof
    9.
    发明授权
    Polyhydroxy compounds containing urea groups and either ester or amide groups, process for their preparation, and the use thereof 失效
    含有脲基和酯或酰胺基的多羟基化合物，其制备方法及其用途

    公开(公告)号：US4704447A

    公开(公告)日：1987-11-03

    申请号：US824042

    申请日：1986-01-30

    申请人： Gerhard Balle ,  Gerhard Grogler ,  Walter Meckel

    发明人： Gerhard Balle ,  Gerhard Grogler ,  Walter Meckel

    IPC分类号： C07C275/16 ,  C07C275/40 ,  C07D223/10 ,  C08G18/38 ,  C08G18/34 ,  C08G18/00 ,  C08G18/32

    CPC分类号： C08G18/3829 ,  C07C275/16 ,  C07C275/40 ,  C07D223/10

    摘要： The compounds of the present invention are obtained by the reaction of carbamoyl lactams (from lactams and polyisocyanates) with polyhydric alcohols or monoamino alcohols in the presence of catalytic quantities of a strong basic catalyst, e.g. an alkali metal alcoholate, at elevated temperatures.The polyols contain urea groups and either ester or amide groups and correspond to formula (I) or (II) ##STR1## The polyols are crystalline, relatively high melting compounds which are used as reactants for the synthesis of polyurethane elastomers, in particular in the form of finely divided components in one-component polyurethane reaction mixtures.

    摘要翻译： 本发明的化合物是通过在催化量的强碱性催化剂，例如甲醇和丙醇的存在下，氨基甲酰基内酰胺（来自内酰胺和多异氰酸酯）与多元醇或单氨基醇的反应得到的。 碱金属醇化物，在升高的温度。 多元醇含有脲基团和酯基或酰胺基团，并且对应于式（I）或（II）。（II）多元醇是结晶的，较高熔点的化合物，其用作反应物 聚氨酯弹性体的合成，特别是在单组分聚氨酯反应混合物中以细碎组分的形式。

    Process for the preparation of low molecular weight 4,4'-diphenylmethane-uretdione-diisocyanates
    10.
    发明授权
    Process for the preparation of low molecular weight 4,4'-diphenylmethane-uretdione-diisocyanates 失效
    制备低分子量4,4'-二苯基甲烷 - 二酮二异氰酸酯的方法

    公开(公告)号：US4521338A

    公开(公告)日：1985-06-04

    申请号：US404106

    申请日：1982-08-02

    申请人： Gerhard Grogler ,  Richard Kopp

    发明人： Gerhard Grogler ,  Richard Kopp

    IPC分类号： C07B61/00 ,  C07D229/00 ,  C08G18/79

    CPC分类号： C07D229/00 ,  C08G18/798

    摘要： Low molecular weight 4,4'-diphenylmethane-uretdione-diisocyanates corresponding to the formula: ##STR1## wherein n is a number from 0 to 1,are made by dimerizing diphenylmethane-4,4'-diisocyanate at a temperature of 50.degree. C. or less in a mixture of non-polar and moderately polar solvents in the presence of a dimerization catalyst. The dimerization product may then be worked up at low temperatures (i.e., .ltoreq.50.degree. C.). The dimerization products of diphenylmethane-diisocyanate thus obtained generally have only a small amount of oligomeric uretdione-diisocyanates present. These dimerization products may be used advantageously in the synthesis of polyurethanes.

    摘要翻译： 对应于下式的低分子量4,4'-二苯基甲烷 - 脲二酮 - 二异氰酸酯：其中n为0至1的数，通过二苯基甲烷-4,4'- 二异氰酸酯在50℃或更低的温度下在非极性和中等极性溶剂的混合物中在二聚催化剂存在下进行。 然后可以在低温下（即