Polyisocyanate mixtures and their use in the preparation of flexible
polyurethane foams
    1.
    发明授权
    Polyisocyanate mixtures and their use in the preparation of flexible polyurethane foams 失效
    聚异氰酸酯混合物及其在制备柔性聚氨酯泡沫体中的应用

    公开(公告)号:US5132334A

    公开(公告)日:1992-07-21

    申请号:US638719

    申请日:1991-01-08

    IPC分类号: C08G18/72 C08G18/76 C08J9/02

    摘要: The present invention relates to polyisocyanate mixtures of(A) 21 to 95% by weight of toluene diisocyanate and(B) 5 to 79% by weight of a mixture of diphenylmethane diisocyanates and polyphenyl polymethylene polyisocyanates containing (1) 55 to 87% by weight of 4,4'-diphenylmethane diisocyanate, (2) 8 to 30% by weight of 2,4'-diphenylmethane diisocyanate, (3) 0 to 4% by weight of 2,2'-diphenylmethane diisocyanate, and (4) 5 to 35% by weight of polyphenyl polymethylene polyisocyanates.The invention also relates to a process for preparing flexible polyurethane foams in which polyisocyanate mixtures of the invention are used as the polyisocyanate component.

    摘要翻译: 本发明涉及(A)21至95重量%的甲苯二异氰酸酯和(B)5-79重量%的二苯基甲烷二异氰酸酯和聚苯基多亚甲基多异氰酸酯的混合物的多异氰酸酯混合物,其含有(1)55-87重量% 的4,4'-二苯基甲烷二异氰酸酯,(2)8〜30重量%的2,4'-二苯基甲烷二异氰酸酯,(3)0〜4重量%的2,2'-二苯基甲烷二异氰酸酯,(4)5 至35重量%的聚苯基多亚甲基多异氰酸酯。 本发明还涉及制备柔性聚氨酯泡沫的方法,其中本发明的多异氰酸酯混合物用作多异氰酸酯组分。

    Process for the production of semirigid foams containing urethane groups
with improved flow properties
    2.
    发明授权
    Process for the production of semirigid foams containing urethane groups with improved flow properties 失效
    用于生产含有具有改善的流动性质的氨基甲酸酯基团的半刚性泡沫的方法

    公开(公告)号:US5416125A

    公开(公告)日:1995-05-16

    申请号:US325715

    申请日:1994-10-19

    摘要: The present invention relates to a process for the production of semi-rigid foams containing urethane groups which exhibit very good flow properties during the production process. These semi-rigid foams are produced by reacting a reaction mixture of:1) polyisocyanates,2) organic compounds containing at least two isocyanate-reactive hydrogen atoms and having a molecular weight in the range from 400 to 10,000, and3) water and/or organic blowing agents.In particular, the polyisocyanates comprise a mixture of:a) 55 to 87% by weight, based on 100% by weight of the mixture, of 4,4'-diphenylmethane diisocyanate,b) 8 to 40% by weight, based on 100% by weight of the mixture, of 2,4'-diphenylmethane diisocyanate,c) 0.1 to 4% by weight, based on 100% by weight of the mixture, of 2,2'-diphenylmethane diisocyanate, andd) 5 to 35% by weight, based on 100% by weight of the mixture, of polyphenyl polymethylene polyisocyanates.

    摘要翻译: 本发明涉及一种生产含有氨基甲酸酯基团的半刚性泡沫的方法,在生产过程中表现出非常好的流动性。 这些半刚性泡沫体通过以下反应混合物制备:1)多异氰酸酯,2)含有至少两个异氰酸酯反应性氢原子并且分子量在400至10,000的有机化合物,和3)水和/ 或有机发泡剂。 特别地,多异氰酸酯包括以下混合物:a)基于100重量%的混合物的55-87重量%的4,4'-二苯基甲烷二异氰酸酯,b)8至40重量%,基于100 混合物的重量%,2,4'-二苯基甲烷二异氰酸酯,c)0.1至4重量%,基于100重量%的混合物,2,2'-二苯基甲烷二异氰酸酯,和d)5至35 基于100重量%的混合物的重量%的聚苯基多亚甲基多异氰酸酯。

    Process for the production of cold-setting flexible polyurethane foams
with excellent damping properties
    3.
    发明授权
    Process for the production of cold-setting flexible polyurethane foams with excellent damping properties 失效
    生产具有优异阻尼性能的柔性聚氨酯泡沫塑料的方法

    公开(公告)号:US5063253A

    公开(公告)日:1991-11-05

    申请号:US502346

    申请日:1990-03-30

    摘要: This invention relates to a process for the production of cold-setting flexible polyurethane foam useful for damping sound comprising reacting a polyisocyanate in the presence of water with (a) at least one polyether having an OH number of from 20 to 60 and containing at least two OH groups, wherein said polyether is based on 75 to 95% by weight propylene oxide and 5 to 25% by weight ethylene oxide; (b) a polyether or polyester having an OH number of from 150 to 400 and containing at least two OH groups; and (c) a polyether different from components (a) and (b) having an OH number of from 20 to 200 and containing at least two OH groups, wherein said polyether is based on propylene oxide and ethylene oxide and has an ethylene oxide content above 50% by weight based on the total amount of propylene oxide and ethylene oxide.

    摘要翻译: 本发明涉及用于制造用于阻尼声音的冷定型柔性聚氨酯泡沫的方法,包括在水存在下使多异氰酸酯与(a)至少一种OH数为20至60的聚醚反应并至少包含至少 两个OH基团,其中所述聚醚基于75-95重量%的环氧丙烷和5-25重量%的环氧乙烷; (b)OH值为150-400并含有至少两个OH基团的聚醚或聚酯; 和(c)不同于OH数为20〜200且含有至少两个OH基的组分(a)和(b)的聚醚,其中所述聚醚是基于环氧丙烷和环氧乙烷并且具有环氧乙烷含量 基于环氧丙烷和环氧乙烷的总量高于50重量%。

    INCREASING THE SOUND ABSORPTION IN FOAM INSULATING MATERIALS
    6.
    发明申请
    INCREASING THE SOUND ABSORPTION IN FOAM INSULATING MATERIALS 审中-公开
    增加泡沫绝缘材料中的声吸收

    公开(公告)号:US20140174849A1

    公开(公告)日:2014-06-26

    申请号:US14232513

    申请日:2012-07-13

    申请人: Peter Gansen

    发明人: Peter Gansen

    IPC分类号: G10K11/168 B32B5/24 C08J9/00

    摘要: The invention relates to the use of expandable graphite having a starting temperature greater than or equal to 150° C. for increasing the sound absorption within a sound absorption foam material foamed with the expandable graphite, wherein the foam material is a polyurethane foam material. An associated sound absorber having a sound absorption foam material made of a polyurethane integral foam or polyurethane flexible foam, which is open-cell at least in the core region thereof, has a density greater than or equal to 120 g/l and a content of at least 5 wt % of expandable graphite to 100 parts by weight of isocyanate-reactive components, in particular polyol. The sound absorber can preferably be used for sound absorption in engine compartments of motor vehicles. The sound absorber can also be used very advantageously inside relatively complex components and in the design-dependent cavities of machines.

    摘要翻译: 本发明涉及使用起始温度大于或等于150℃的可膨胀石墨,以增加用可膨胀石墨发泡的吸声泡沫材料中的吸声,其中泡沫材料是聚氨酯泡沫材料。 具有由聚氨酯整体泡沫或聚氨酯柔性泡沫制成的吸声泡沫材料的相关联的吸音体至少在其核心区域中是开孔的,其密度大于或等于120g / l,并​​且含量 至少5重量%的可膨胀石墨至100重量份的异氰酸酯反应性组分,特别是多元醇。 吸声器可以优选用于机动车辆的发动机室中的吸音。 吸声器也可以非常有利地用于相对复杂的部件和机器的设计依赖的腔内。

    Rigid polyurethane foam based on polyethers of TDA
    7.
    发明授权
    Rigid polyurethane foam based on polyethers of TDA 有权
    基于TDA聚醚的刚性聚氨酯泡沫塑料

    公开(公告)号:US6005016A

    公开(公告)日:1999-12-21

    申请号:US166977

    申请日:1998-10-06

    IPC分类号: C08G18/66 C08G18/32

    摘要: The present invention is directed to a rigid, molded foam produced by reacting: a) one or more organic polyisocyanates, with b) a polyol blend comprising i) 100 parts by weight of a mixture comprising: 1) from 30 to 80 parts by weight of one or more polyethers having hydroxy functionalities of 2 or 3 and molecular weights of from about 1,000 to about 8,000, the polyethers further being characterized as containing no nitrogen atoms and not being filled polyethers, 2) from 10 to 50 parts by weight of one or more adducts of toluene diamine and an alkylene oxide, the adduct having a molecular weight of from about 350 to about 700, 3) from 0 to 15 parts by weight of one or more di- or trialkanol amines, with the amounts of components 1), 2) and 3) totaling 100 parts, and c) from about 0.1 to about 4 parts by weight per 100 parts by weight of component b) of a silicone cell-opening surfactant and d) from 1 to 7 parts by weight of water, and e) from 0.1 to 2 parts by weight of at least one tertiary amine catalyst; wherein the reaction mixture contains no auxiliary blowing agents and wherein the amount of polyisocyanate is such that the isocyanate index is from 95 to 120.

    摘要翻译: 本发明涉及一种刚性模制泡沫体,其通过以下方法制备:a)一种或多种有机多异氰酸酯,和b)多元醇共混物,其包含i)100重量份的混合物,其包含:1)30至80重量份 的一种或多种具有2或3的羟基官能团和分子量为约1,000至约8,000的聚醚,所述聚醚还被表征为不含氮原子而不是填充聚醚,2)10至50重量份的一个 或更多的甲苯二胺和环氧烷的加合物,加合物的分子量为约350至约700,3或更多的0至15重量份的一种或多种二烷基醇或三烷醇胺,其组分1 ),2)和3)共计100份,以及c)约100至约4份重量的每100份重量的组分b)的有机硅开孔表面活性剂和d)1至7份重量的 水和e)0.1至2重量份的至少一种Te 催化剂; 其中所述反应混合物不含辅助发泡剂,并且其中所述多异氰酸酯的量使得所述异氰酸酯指数为95至120。

    Process for the preparation of low-density flexible polyurethane foams
    8.
    发明授权
    Process for the preparation of low-density flexible polyurethane foams 失效
    制备低密度柔性聚氨酯泡沫的方法

    公开(公告)号:US5145882A

    公开(公告)日:1992-09-08

    申请号:US705850

    申请日:1991-05-28

    摘要: The present invention relates to a process for the preparation of low-density flexible polyurethane foams comprising reacting, in a closed mold, a mixture comprising polyisocyanates; compounds containing at least two isocyanate-reactive hydrogen atoms and having a molecular weight in the range from about 400 to about 10,000; water as blowing agent; optionally, compounds containing at least two isocyanate-reactive hydrogen atoms and having a molecular weight in the range from 32 to 399 as chain-extending and crosslinking agents; and optionally, one or more known auxiliaries and additives, wherein one or more of the reaction mixture components is heated before foaming to a temperature of at least 40.degree. C.

    摘要翻译: 本发明涉及一种制备低密度柔性聚氨酯泡沫体的方法,包括在封闭模具中使包含多异氰酸酯的混合物反应; 含有至少两个异氰酸酯反应性氢原子并且分子量在约400至约10,000范围内的化合物; 水作为发泡剂; 任选地,含有至少两个异氰酸酯反应性氢原子并且具有32至399的分子量的化合物作为扩链和交联剂; 和任选的一种或多种已知助剂和添加剂,其中将一种或多种反应混合物组分在发泡之前加热至至少40℃的温度。

    Liquid polyisocyanate compositions, a process for their preparation, and
their use for the preparation of flexible polyurethane foams
    9.
    发明授权
    Liquid polyisocyanate compositions, a process for their preparation, and their use for the preparation of flexible polyurethane foams 失效
    液体多异氰酸酯组合物,其制备方法及其用于制备柔性聚氨酯泡沫体的用途

    公开(公告)号:US4945117A

    公开(公告)日:1990-07-31

    申请号:US354649

    申请日:1989-05-19

    摘要: This invention relates to liquid urethane-modified polyisocyanate compositions obtained by reaction of polyisocyanates or polyisocyanate mixtures of the diphenylmethane series containing from about 50 to about 100% by weight diisocyanatodiphenylmethane isomers with substoichiometric quantities of polyether polyol compositions having an average hydroxyl equivalent weight of about 500 to 3000 and an average hydroxyl functionality greater than about 4, optionally followed by mixing the initially formed reaction product with urethane-free polyisocyanates or polyisocyanate mixtures of the diphenylmethane series containing from about 40 to about 100% by weight diisocyanatodiphenylmethane isomers. This invention also relates to a process for the preparation of such polyisocyanate compositions. The invention further relates to the use of such compositions as the polyisocyanate component in the production of flexible polyurethane foams.

    摘要翻译: 本发明涉及通过将含有约50至约100重量%的二异氰酸二苯基甲烷异构体的二异氰酸酯系列的多异氰酸酯或多异氰酸酯混合物与亚化学计量量的平均羟基当量为约500的聚醚多元醇组合物反应而获得的液体氨基甲酸酯改性多异氰酸酯组合物 任选地随后将初始形成的反应产物与含有约40至约100重量%的二异氰酸根二苯基甲烷异构体的二苯基甲烷系列的无氨基甲酸酯多异氰酸酯或多异氰酸酯混合物混合。 本发明还涉及制备这种多异氰酸酯组合物的方法。 本发明还涉及这种组合物作为多异氰酸酯组分在生产柔性聚氨酯泡沫体中的用途。