利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

9 条记录 (耗时 0.091 秒)

    Method of producing polyurea foams
    2.
    发明授权
    Method of producing polyurea foams 失效
    生产聚脲泡沫的方法

    公开(公告)号：US4234695A

    公开(公告)日：1980-11-18

    申请号：US88312

    申请日：1979-10-25

    申请人： Toshio Yukuta ,  Takumi Ishiwaka ,  Kiyoshi Usui

    发明人： Toshio Yukuta ,  Takumi Ishiwaka ,  Kiyoshi Usui

    IPC分类号： C08G18/00 ,  C08G18/08 ,  C08G18/18 ,  C08G18/30 ,  C08G18/38 ,  C08J9/02

    CPC分类号： C08J9/02 ,  C08G18/14 ,  C08G18/1816 ,  C08G18/3829 ,  C08J2375/02

    摘要： A method of producing polyurea foams is disclosed. The polyurea foam is produced by reacting an organic polyisocyanate with water in the presence of urea or by reacting a crude tolylene diisocyanate or a mixture of crude tolylene diisocyanate and crude diphenylmethane diisocyanate as an organic polyisocyanate with water in the presence of an amine catalyst, a silicone surfactant and, if necessary, a tin catalyst.

    摘要翻译： 公开了一种生产聚脲泡沫的方法。 聚脲泡沫体是通过有机多异氰酸酯与水在脲的存在下反应来制备的，或者通过使粗甲苯二异氰酸酯或粗甲苯二异氰酸酯与粗二苯基甲烷二异氰酸酯的混合物作为有机多异氰酸酯与水在胺催化剂， 有机硅表面活性剂和必要时的锡催化剂。

    Microcellular polyurethane elastomer and manufacturing method of the same
    5.
    发明授权
    Microcellular polyurethane elastomer and manufacturing method of the same 失效
    微孔聚氨酯弹性体及其制造方法相同

    公开(公告)号：US4647596A

    公开(公告)日：1987-03-03

    申请号：US856217

    申请日：1986-04-28

    申请人： Seiji Ishii ,  Masanori Miyoshi ,  Takumi Ishiwaka ,  Osamu Kondo

    发明人： Seiji Ishii ,  Masanori Miyoshi ,  Takumi Ishiwaka ,  Osamu Kondo

    IPC分类号： C08G18/00 ,  C08G18/40 ,  C08G18/42 ,  C08G18/66 ,  C08G18/14

    CPC分类号： C08G18/4277 ,  C08G18/4202 ,  C08G18/6637 ,  C08G2101/0066 ,  C08G2350/00 ,  Y10S521/904

    摘要： Polyol component essentially consists of polyesterpolyetherpolyol containing polyesterpolyol by the weight ratio of 100:0 to 20:80, in which the polyesterpolyetherpolyol is a copolymer of polytetramethyleneglycol (PTMG) and .epsilon.-caprolactone by the weight ratio of 20:80 to 80:20 with an average molecular weight of 1000 to 3000 and the polyesterpolyol is a condensate of adipic acid as a main acid component with an average molecular weight of 1000 to 3000, is reacted with isocyanate component essentially consists of 4,4'-diphenylmethanediisocyanate (MDI) to make a prepolymer with terminal radical of NCO.Microcellular polyurethane produced from the prepolymer by foaming and polymerization reaction has the durability for vibration-proof material of car use, combining the advantage of PTMG such as high initial modulus at elongation, low heat built up, low-temperature property and hydrolysis-durability under high humid and hot conditions, with the advantage of polycaprolactone such as good molding property and anti-bending-fatigue property, as well as making up for the disadvantage of both polyols each other. Thus improving the problems of microcellular polyurethane using MDI such as low initial modulus at elongation and high heat built up.

    摘要翻译： 多元醇组分主要由聚酯多元醇多元醇组成，重量比为100:0至20:80，其中聚酯多元醇是聚四亚甲基二醇（PTMG）与ε-己内酯的共聚物，重量比为20:80至80:20， 平均分子量为1000〜3000，聚酯多元醇是己二酸作为主要酸成分的平均分子量为1000〜3000的缩合物，与异氰酸酯成分基本上由4,4'-二苯基甲烷二异氰酸酯（MDI）组成， 制备具有NCO末端基团的预聚物。 通过发泡和聚合反应由预聚物生产的微孔聚氨酯具有耐汽车使用的防振材料的耐久性，结合PTMG的优点，如伸长时的高初始模量，低热累积，低温性能和水解耐久性 高湿热条件下，具有良好的成型性和抗弯曲疲劳性等聚己内酯的优点，并且弥补了这两种多元醇的缺点。 从而改善了使用MDI的微孔聚氨酯的问题，如伸长时的低初始模量和高热积聚。

    Foamable phenolic resin composition and process for preparation thereof
    7.
    发明授权
    Foamable phenolic resin composition and process for preparation thereof 失效
    可泡沫酚醛树脂组合物及其制备方法

    公开(公告)号：US5137931A

    公开(公告)日：1992-08-11

    申请号：US651242

    申请日：1991-03-29

    申请人： Syuji Okumura ,  Shigetoshi Awano ,  Masahiro Kinoshita ,  Kazuo Tamemoto ,  Akihiro Maruyama ,  Takumi Ishiwaka ,  Takashi Ohashi

    发明人： Syuji Okumura ,  Shigetoshi Awano ,  Masahiro Kinoshita ,  Kazuo Tamemoto ,  Akihiro Maruyama ,  Takumi Ishiwaka ,  Takashi Ohashi

    IPC分类号： C08J9/00 ,  C08L61/06

    CPC分类号： C08J9/0061 ,  C08L61/06 ,  C08J2361/00 ,  C08J2361/06 ,  C08J2471/00

    摘要： Disclosed is a foamable phenolic resin composition comprising, as indispensable components, 100 parts by weight as solids of a resol type phenolic resin, 3 to 100 parts by weight of an acidic curing agent, 1 to 50 parts by weight of a blowing agent, 0.1 to 50 parts by weight of a saccharide and 0.1 to 10 parts by weight of a foam stabilizer, in which a partial or complete acetylation product of a castor oil/ethylene oxide adduct having a hydroxyl value smaller than 15 mg-KOH/g, which is obtained by acetylating a castor oil/ethylene oxide adduct formed by adding 20 to 70 moles of ethylene oxide to 1 mole of castor oil is used as the foam stabilizer and/or a resol type liquid penolic resin obtained by subjecting a phenol and an aldehyde to addition condensation reaction in the presence of a catalyst having a metal ion-forming capacity, in which the residual amount of the catalyst is smaller than 0.1 part by weight as the metal element per 100 parts by weight of the resol type phenolic resin, is used as the resol type liquid phenolic resin. This foamable phenolic resin composition provides a foam which has an excellent brittle resistance, heat-insulation, and stability with time, and in which the excellent heat-insulation is not affected by a reduction of the density and change of the ambient temperature. Also a process for the preparation of this foamable phenolic resin composition is disclosed.

    摘要翻译： PCT No.PCT / JP90 / 00716 Sec。 371日期1991年3月29日 102（e）1990年3月29日PCT Filed 1990年3月29日。公开是一种可发泡酚醛树脂组合物，其包含作为不可缺少组分的100重量份作为甲阶型酚醛树脂的固体，3至100重量份 的酸性固化剂，1〜50重量份的发泡剂，0.1〜50重量份的糖类和0.1〜10重量份的泡沫稳定剂，其中蓖麻油的部分或完全乙酰化产物 使用羟基值小于15mg-KOH / g的环氧乙烷加成物，其通过将通过向1摩尔蓖麻油中加入20至70摩尔环氧乙烷形成的蓖麻油/环氧乙烷加合物乙酰化而获得，作为泡沫 稳定剂和/或甲阶型液体酚醛树脂，其通过在具有金属离子形成能力的催化剂存在下使苯酚和醛进行加成缩合反应，其中催化剂的残留量小于0.1份 重量作为金属元素 使用100重量份甲阶型酚醛树脂作为甲阶型液体酚醛树脂。 该可发泡酚醛树脂组合物提供了具有优异的耐脆性，隔热性和稳定性随时间推移的泡沫，其中优异的绝热不受密度的降低和环境温度的变化的影响。 还公开了制备该可发泡酚醛树脂组合物的方法。