利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

19 条记录 (耗时 0.01 秒)

    Density reduction in flexible polyurethane foams
    7.
    发明授权
    Density reduction in flexible polyurethane foams 失效
    柔性聚氨酯泡沫塑料的密度降低

    公开(公告)号：US5006569A

    公开(公告)日：1991-04-09

    申请号：US394548

    申请日：1989-08-16

    申请人： Herman Stone

    发明人： Herman Stone

    IPC分类号： C08G18/32 ,  C08G18/50 ,  C08G18/66 ,  C08J9/08

    CPC分类号： C08J9/08 ,  C08G18/3265 ,  C08G18/3296 ,  C08G18/503 ,  C08G18/6681 ,  C08G2101/0008 ,  C08G2101/005 ,  C08J2375/04

    摘要： Improved, flexible, open-celled polyurethane foams of reduced density, but with stability and firmness characteristics comparable to those of standard foams, are described. The foams are formed in situ from the reaction, in the presence of a catalyst, of an isocyanate, one or more blowing agents including water, a foam stabilizer, a polyether polyol, and a liquid salt produced from the reaction of CO.sub.2 with a water-soluble amine or amino alcohol. Preferred amines or amino alcohols for the CO.sub.2 salt include primary amines and polyols which contain primary amino end groups, secondary amines which contain primary hydroxyl groups, and a variety of low molecular weight aminohydroxy compounds. The liquid salt is present in the foam formulations in an amount of at least 2 parts by weight per 100 parts by weight of polyol.

    FOAMING ADDITIVE FOR PRODUCING POLYURETHANE FOAM, AND METHOD FOR PRODUCING RIGID POLYURETHANE FOAM BY USING IT
    10.
    发明申请
    FOAMING ADDITIVE FOR PRODUCING POLYURETHANE FOAM, AND METHOD FOR PRODUCING RIGID POLYURETHANE FOAM BY USING IT 审中-公开

    公开(公告)号：US20120041088A1

    公开(公告)日：2012-02-16

    申请号：US13265958

    申请日：2010-04-23

    申请人： Masaki Ishida ,  Yutaka Tamano

    发明人： Masaki Ishida ,  Yutaka Tamano

    IPC分类号： C08J9/08 ,  C09K3/00

    CPC分类号： C08G18/3265 ,  C08G18/6614 ,  C08G2101/0025 ,  C08G2101/005 ,  C08G2101/0083

    摘要： To provide a foaming additive for producing a polyurethane foam, which is capable of solving a problem of deterioration of moldability due to deterioration of the initial foaming property of a foam, and a method for producing a rigid polyurethane foam by using it.A foaming additive for producing a polyurethane foam, is used which comprises a salt of carbon dioxide with an amine compound of one or more types selected from the group consisting of an amine compound (I) represented by the following formula (1): wherein each of R1 to R4 which are independent of one another, is a hydrogen atom or a methyl group, and n is a number of at least 1, an amine compound (II) represented by the following formula (2): wherein each of R1 to R4 which are independent of one another, is a hydrogen atom or a C1-3 alkyl group, R5 is a hydrogen atom, a C1-3 alkyl group, a C1-3 aminoalkyl group, a C2-4 N-methylaminoalkyl group or a C3-5 N,N-dimethylaminoalkyl group, or R5 may be optionally bonded to R1, R2, R3 or R4 to form a cyclic compound having a piperazine structure, provided that at least one of R1 to R5 is a hydrogen atom, and all of R1 to R5 are not hydrogen atoms, each of n and m which are independent of each other, is an integer of from 1 to 5, and a is an integer of from 1 to 6, an amine compound (III) represented by the following formula (3): wherein R1 is a C1-4 alkyl group, and each of R2 to R5 which are independent of one another, is a hydrogen atom or a methyl group, an amine compound (IV) represented by the following formula (4): wherein R1 is a C1-4 alkyl group, and each of R2 to R5 which are independent of one another, is a hydrogen atom or a methyl group, and an amine compound (V) represented by the following formula (5): wherein each of R2 to R5 which are independent of one another, is a hydrogen atom or a methyl group.