Manufacture of thin layers of polyurethane elastomers
    2.
    发明授权
    Manufacture of thin layers of polyurethane elastomers 失效
    聚氨酯弹性体薄层的制备

    公开(公告)号:US4013806A

    公开(公告)日:1977-03-22

    申请号:US421608

    申请日:1973-12-04

    CPC分类号: C08G18/637 C08F283/00

    摘要: A process for the manufacture of thin layers based on polyurethane elastomers. A liquid reaction mixture essentially consisting of (A) polyesters, polyethers, polyester urethanes or polyether urethanes, all of which contain at least two hydroxyl groups in the molecule, and diisocyanates or (B) prepolymers obtained from the hydroxyl-containing compounds mentioned under (A) above with an excess of diisocyanates, said prepolymers containing at least two isocyanate groups in the molecule, and at least one of the compounds mentioned under (A) above which are capable of reacting with isocyanates, to which reaction mixture a minor quantity of substantially compatible monomers having at least two photocrosslinkable C--C multiple bonds and optionally a photopolymerization initiator have been added, is applied to a substrate to form a coating thereon, which coating is then gelled by irradiation and finally thermocured. The process of the invention is particularly suitable for the continuous manufacture of uniformly thin layers of soft polyurethane elastomer showing narrow tolerance limits.

    Production of plastic foams, preferably rigid foams containing urethane
groups or urethane and isocyanurate groups, and blowing
agent-containing emulsions for this purpose
    3.
    发明授权
    Production of plastic foams, preferably rigid foams containing urethane groups or urethane and isocyanurate groups, and blowing agent-containing emulsions for this purpose 失效
    生产塑料泡沫,优选含有氨基甲酸酯基团或氨基甲酸酯和异氰脲酸酯基团的刚性泡沫,以及用于该目的的含发泡剂的乳液

    公开(公告)号:US5300534A

    公开(公告)日:1994-04-05

    申请号:US986747

    申请日:1992-12-08

    摘要: A process for the production of plastic foams, preferably rigid foams containing urethane groups or urethane and isocyanurate groups, by reactinga) an organic and/or modified organic polyisocyanate withb) at least one relatively high-molecular-weight compound containing at least two reactive hydrogen atoms, and, if desired,c) a low-molecular-weight chain extender and/or cross-linking agent,in the presence ofd) a blowing agent,e) a catalyst and, if desired,f) assistants and/or additives,in which the blowing agent (d) used is at least one vinylfluoroalkane of the formula CH.sub.2 .dbd.CH--C.sub.n F.sub.2n+1 in which n is an integer from 1 to 6, (di), or a mixture of at least one such vinylfluoroalkane (di) and at least one further physical and/or chemical blowing agent (dii) which is different from (di), blowing agent-containing emulsions which contain at least one vinylfluoroalkane and at least one starting component (a), (b), (c) or (b) and (c) and said plastic foams containing at least one vinylfluoroalkane as insulating gas.

    摘要翻译: 通过使a)有机和/或改性的有机多异氰酸酯与b)至少一种相对高分子量的化合物(其包含至少两种以上的化合物)反应,生产塑料泡沫,优选含有氨基甲酸酯基或氨基甲酸酯和异氰脲酸酯基团的刚性泡沫的方法 反应性氢原子,如果需要,c)低分子量增链剂和/或交联剂,在d)发泡剂存在下,e)催化剂,如果需要,f)助剂和 其中使用的发泡剂(d)是至少一种式CH 2 = CH-C n F 2n + 1的乙烯基氟烷烃,其中n是1至6的整数,(di),或至少一种 这种乙烯基氟烷烃(二)和至少一种不同于(二)的物理和/或化学发泡剂(dii),含有至少一种乙烯基氟烷烃和至少一种起始组分(a)的发泡剂的乳液,( b),(c)或(b)和(c)和所述含有至少一种乙烯基芴的塑料泡沫 oralkalk作为绝缘气体。

    Preparation of integral skin cellular plastics by the polyaddition
process in the presence of tertiary alcohols
    4.
    发明授权
    Preparation of integral skin cellular plastics by the polyaddition process in the presence of tertiary alcohols 失效
    在叔醇存在下通过加聚方法制备整体皮肤细胞塑料

    公开(公告)号:US5189068A

    公开(公告)日:1993-02-23

    申请号:US916578

    申请日:1992-07-20

    IPC分类号: C08J9/14

    摘要: A process for the preparation of cellular plastics, preferably hard structural polyurethane foams, by the polyisocyanate polyaddition process involves reactinga) an organic and/or modified organic polyisocyanate withb) at least one high-molecular-weight compound containing at least two reactive hydrogen atoms and, if desired,c) a low-molecular-weight chain extender and/or cross-linking agent,in the presence ofd) a blowing agent from the group comprising tertiary alcohols (di), preferably tertiary butanol, or a mixture of at least one tertiary alcohol (di) and water (dii),e) a catalyst and, if desired,f) assistants and/or additives.

    摘要翻译: 通过多异氰酸酯加聚方法制备多孔塑料,优选硬结构聚氨酯​​泡沫的方法包括使a)有机和/或改性的有机多异氰酸酯与b)至少一种含至少两个反应性氢的高分子量化合物 原子,如果需要,c)低分子量增链剂和/或交联剂,在d)来自包含叔醇(di),优选叔丁醇的发泡剂或混合物 的至少一种叔醇(di)和水(dii),e)催化剂,如果需要,f)助剂和/或添加剂。

    Esters containing bonded fluorocarbon and oxypropylenealkylether groups,
emulsions containing these esters and their use for the preparation of
cellular plastics by polyisocyanate polyaddition
    5.
    发明授权
    Esters containing bonded fluorocarbon and oxypropylenealkylether groups, emulsions containing these esters and their use for the preparation of cellular plastics by polyisocyanate polyaddition 失效
    含有粘结氟代和含氧丙烯基聚醚的酯,含有这些酯的乳液及其用于通过聚异氰酸酯聚合制备细胞纤维素的用途

    公开(公告)号:US5126379A

    公开(公告)日:1992-06-30

    申请号:US629296

    申请日:1990-12-18

    摘要: Novel esters containing bonded fluorocarbon and oxypropylenealkylether groups and of the formula ##STR1## where Rf is straight-chain or branched, partially fluorinated or perfluorinated alkyl of 2 to 10 carbon atoms, partially fluorinated or perfluorinated cycloalkyl of 4 to 8 carbon atoms,perfluorophenyl orperfluoroalkylphenyl where the perfluoroalkyl radical is of 1 to 6 carbon atoms,R is straight-chain or branched alkyl of 1 to 4 carbon atoms andn is an integer from 2 to 70,blowing agent-containing emulsions which have a long shelf life and contain at least one partially fluorinated or perfluorinated (cyclo)aliphatic hydrocarbon of 3 to 8 carbon atoms and/or sulfur hexafluoride, at least one unmodified or modified organic polyisocyanate or a relatively high molecular weight reactive hydrogen compound and at least one of the abovementioned carboxylic or carbamic esters, and the use of these emulsions for the preparation of cellular plastics by the polyisocyanate polyaddition method.

    摘要翻译: 含有键合碳氟化合物和氧丙烯烷基醚基团的新型酯,其结构式为“IMAGE”或“IMAGE”,其中Rf为2至10个碳原子的直链或支链,部分氟化或全氟化的烷基,4至8个碳的部分氟化或全氟化环烷基 原子,全氟苯基或全氟烷基苯基,其中全氟烷基为1至6个碳原子,R为1至4个碳原子的直链或支链烷基,n为2-70的整数,含发泡剂的乳液具有长 含有至少一种3-8个碳原子和/或六氟化硫的至少一种部分氟化或全氟化(环)脂族烃,至少一种未改性或改性的有机多异氰酸酯或相对高分子量的反应性氢化合物和至少一种 上述羧酸或氨基甲酸酯,以及这些乳液用于通过多异氰酸酯多嵌段制备细胞塑料的用途 dition方法。

    Preparation of emulsifier-free aqueous polyurethane dispersions
    6.
    发明授权
    Preparation of emulsifier-free aqueous polyurethane dispersions 失效
    无乳化型水性聚氨酯分散体的制备

    公开(公告)号:US5055516A

    公开(公告)日:1991-10-08

    申请号:US462039

    申请日:1990-01-08

    摘要: Emulsifier-free aqueous polyurethane dispersions are prepared by reacting (a) dihydroxy compounds, (b) diisocyanates and (c) chain extenders to give a prepolymer having terminal isocyanate groups, then reacting the prepolymer with (d) salts of aliphatic aminocarboxylic or -sulfonic acids or amino-containing or hydroxyl-containing tertiary ammonium salts, dispersing the resulting polyurethane in water and, if required, removing the organic solvent by distillation. In the process, an organic condensation resin which is dissolved in a solvent is admixed before the polyurethane obtained is dispersed in water.

    摘要翻译: 通过使(a)二羟基化合物,(b)二异氰酸酯和(c)扩链剂反应得到具有末端异氰酸酯基团的预聚物,然后使预聚物与(d)脂族氨基羧酸或磺酸盐形成的反应物反应制备无乳化剂的水性聚氨酯分散体 酸或含氨基或羟基的叔铵盐,将得到的聚氨酯分散在水中,如果需要,通过蒸馏除去有机溶剂。 在此过程中,将所得聚氨酯分散在水中之前,将溶解在溶剂中的有机缩合树脂混合。

    Production of moldings containing ester and urethane groups, isocyanate
semiprepolymers containing ester groups for this purpose and their use
    8.
    发明授权
    Production of moldings containing ester and urethane groups, isocyanate semiprepolymers containing ester groups for this purpose and their use 失效
    含有酯和氨基甲酸酯基团的模制品的生产,含有酯基的异氰酸酯半聚合物及其用途

    公开(公告)号:US5585409A

    公开(公告)日:1996-12-17

    申请号:US653527

    申请日:1996-05-24

    摘要: A process for producing moldings containing ester and urethane groups and having a cellular core and a compacted surface zone, preferably shoe soles, comprises reactinga) isocyanate semiprepolymers containing ester groups and having an isocyanate content of from 10 to 26% by weight, which in turn are prepared by reactingai) 4,4'-MDI or mixtures of 4,4'-MDI and modified or unmodified MDI isomers,withaii) difunctional to trifunctional polyester polyols having molecular weights of from 600 to 3000 andaiii) at least one branched-chain dihydroxy compound containing at least one bonded ester unit as bridge and having a molecular weight of up to 500,withb) at least one relatively high molecular weight polyhydroxyl compound and, if desired,c) low molecular weight chain extenders and/or crosslinkers in the presence ofd) blowing agents,e) catalystsand, if desired,f) additives in a closed mold with compaction. The isocyanate semiprepolymers containing ester groups which can be used in this process are liquid at room temperature.

    摘要翻译: 一种用于生产含有酯和氨基甲酸酯基团并具有多孔芯和压实表面区,优选鞋底的模制品的方法,包括使a)含有酯基并且异氰酸酯含量为10-26重量%的异氰酸酯半聚体,其在 通过使ai)4,4'-MDI或4,4'-MDI和改性或未改性的MDI异构体的混合物与aii)双官能的三官能聚酯多元醇与分子量为600至3000并且至少aiii)反应制备 一种支链二羟基化合物,其含有至少一个键合的酯单元作为桥,分子量高达500,b)至少一种相对高分子量的多羟基化合物,如果需要,c)低分子量增链剂和 在交联剂存在下,d)发泡剂,e)催化剂,如果需要,f)添加剂在密闭模具中具有压实作用。 在该方法中可使用的含有酯基的异氰酸酯半均聚物在室温下为液体。

    Production of plastic foams, preferably rigid foams containing urethane
groups or urethane and isocyanurate groups, and blowing
agent-containing emulsions for this purpose
    10.
    发明授权
    Production of plastic foams, preferably rigid foams containing urethane groups or urethane and isocyanurate groups, and blowing agent-containing emulsions for this purpose 失效
    生产塑料制品,含有URETHANE组合或URETHANE和ISOCYANURATE组合的优选的FOAMS,以及用于本用途的含有发酵剂的乳液

    公开(公告)号:US5205956A

    公开(公告)日:1993-04-27

    申请号:US904919

    申请日:1992-06-26

    摘要: A process for the production of plastic foams, preferably rigid foams containing urethane groups or urethane and isocyanurate groups, by reactinga) an organic and/or modified organic polyisocyanate withb) at least one relatively high-molecular-weight compound containing at least two reactive hydrogen atoms, and, if desired,c) a low-molecular-weight chain extender and/or crosslinking agent,in the presence ofd) a blowing agent,e) a catalyst and, if desired,f) assistants and/or additives,in which the blowing agent (d) used is at least one vinylfluoroalkane of the formula CH.sub.2 .dbd.CH--C.sub.n F.sub.2n+1 in which n is an integer from 1 to 6, (di), or a mixture of at least one such vinylfluoroalkane (di) and at least one further physical and/or chemical blowing agent (dii) which is different from (di), blowing agent-containing emulsions which contain at least one vinylfluoroalkane and at least one starting component (a), (b), (c) or (b) and (c) and said plastic foams containing at least one vinylfluoroalkane as insulating gas.

    摘要翻译: 通过使a)有机和/或改性的有机多异氰酸酯与b)至少一种相对高分子量的化合物(其包含至少两种以上的化合物)反应,生产塑料泡沫,优选含有氨基甲酸酯基或氨基甲酸酯和异氰脲酸酯基团的刚性泡沫的方法 反应性氢原子,如果需要,c)低分子量增链剂和/或交联剂,在d)发泡剂存在下,e)催化剂,如果需要,f)助剂和/或 其中使用的发泡剂(d)是至少一种式CH 2 = CH-C n F 2n + 1的乙烯基氟烷烃,其中n是1至6的整数,(di)或至少一种这样的乙烯基氟烷烃的混合物 (二)和至少一种不同于(二)的物理和/或化学发泡剂(dii),含有至少一种乙烯基氟烷烃和至少一种起始组分(a)的发泡剂的乳液,(b) ,(c)或(b)和(c)和所述含有至少一种乙烯基纤维的塑料泡沫 罗烷作为绝缘气体。