Process for the preparation of high-temperature-resistant dense or
cellular polyurethane elastomers
    2.
    发明授权
    Process for the preparation of high-temperature-resistant dense or cellular polyurethane elastomers 失效
    制备耐高温致密或细胞聚氨酯弹性体的方法

    公开(公告)号:US4698410A

    公开(公告)日:1987-10-06

    申请号:US878632

    申请日:1986-06-26

    IPC分类号: C08G18/38 C08G18/40 C08G18/64

    摘要: The invention relates to a process for preparing high temperature-resistant dense or cellular polyurethane elastomers by reacting the following, preferably using low-pressure processing techniques:(a) organic polyisocyanates, preferably in the form of isocyanate group-containing prepolymers and/or modified urethane group-containing organic polyisocyanates, with(b) relatively high molecular weight compounds having at least 2 reactive hydrogen atoms,(c) urea derivatives and, optionally,(d) chain extenders and/or cross-linking agents in the presence of(e) catalysts and, optionally,(f) blowing agents(g) auxiliaries and/or additiveswherein amino and/or hydroxyl group-substituted ureas and/or polyureas having molecular weights from 200 to 4000 are also used as the urea derivatives. Said ureas and/or polyureas are prepared by reacting organic diisocyanates with primary aliphatic and/or cycloaliphatic diamines and/or alkanolamines in molar ratios of from 1:1.1 to 1:2, preferably in the presence of polyester or polyether polyols as solvents or diluting agents.

    摘要翻译: 本发明涉及通过以下方式制备耐高温致密或细胞聚氨酯弹性体的方法,优选使用低压加工技术:(a)有机多异氰酸酯,优选为含异氰酸酯基的预聚物和/或改性的 含有氨基甲酸酯基团的有机多异氰酸酯,(b)具有至少2个反应性氢原子的相对高分子量的化合物,(c)脲衍生物和任选的(d)扩链剂和/或交联剂,在 e)催化剂和任选的(f)发泡剂(g)助剂和/或添加剂,其中分子量为200-4000的氨基和/或羟基取代的脲和/或聚脲也用作脲衍生物。 所述脲和/或聚脲通过有机二异氰酸酯与脂族和/或脂环族二胺和/或链烷醇胺的摩尔比为1:1.1至1:2的反应制备,优选在作为溶剂的聚酯或聚醚多元醇的存在下或稀释 代理商

    Process for the preparation of cellular and non-cellular polyurethane
elastomers
    3.
    发明授权
    Process for the preparation of cellular and non-cellular polyurethane elastomers 失效
    制备细胞和非细胞聚氨酯弹性体的方法

    公开(公告)号:US4440705A

    公开(公告)日:1984-04-03

    申请号:US394460

    申请日:1982-07-01

    IPC分类号: C08G18/48 C08G18/66 C08G18/14

    摘要: A process for the preparation of optionally cellular and non-cellular polyurethane elastomers, preferably by reaction injection molding, organic polyisocyanates, polyether polyols based on polyoxyalkylene polyether polyols with terminal hydroxyethylene groups and an ethoxylation degree of 1 to 13, having a content of primary hydroxyl groups at the corresponding degree of ethoxylation as the value of curve A to 100 percent with curve A describing the dependency of the primary hydroxyl group content upon the degree of ethoxylation are reacted with chain extenders and/or cross-linking agents in the presence of catalysts as well as optionally blowing agents, auxiliaries and additives.

    摘要翻译: 一种制备任选的细胞和非细胞聚氨酯弹性体的方法,优选通过反应注射成型,有机多异氰酸酯,基于具有末端羟基亚乙基的聚氧化烯聚醚多元醇的聚醚多元醇和1至13的乙氧基化度,具有伯羟基含量 在相应的乙氧基化程度下的基团与扩链剂和/或交联剂在催化剂存在下与扩链剂和/或交联剂反应,曲线A的值为100%,曲线A描述了伯羟基含量对乙氧基化程度的依赖性 以及任选的发泡剂,助剂和添加剂。

    Process for purification of crude polyether polyols
    5.
    发明授权
    Process for purification of crude polyether polyols 失效
    纯聚醚多元醇的纯化方法

    公开(公告)号:US4507475A

    公开(公告)日:1985-03-26

    申请号:US516330

    申请日:1983-07-22

    IPC分类号: C08G65/30 C07H15/04 C07C41/34

    CPC分类号: C08G65/30

    摘要: A process for purifying crude polyether polyols which are prepared by anionic polymerization of alkylene oxides in the presence of basic catalysts. The polyols are mixed with water and ortho-phosphoric acid in certain quantity ratios, an adsorption agent is incorporated in the reaction mixture, the mixture is filtered and the water is removed from the polyether polyol by distillation.

    摘要翻译: 在碱性催化剂存在下,通过环氧烷阴离子聚合制备粗制聚醚多元醇的方法。 多元醇以一定量的比例与水和正磷酸混合,将反应混合物中加入吸附剂,过滤混合物,并通过蒸馏从聚醚多元醇中除去水。

    Process for the preparation of polyester or polyether-polyester polyol
    6.
    发明授权
    Process for the preparation of polyester or polyether-polyester polyol 失效
    聚酯或聚醚多元醇制备方法

    公开(公告)号:US4582926A

    公开(公告)日:1986-04-15

    申请号:US598247

    申请日:1984-04-09

    摘要: In order to prepare polyester or polyetherpolyester polyols, polyols, preferably di- to hexafunctional polyether polyols having hydroxyl numbers from 15 to 250 are esterified with at least one carboxylic acid anhydride, preferably phthalic acid anhydride, in the presence of N-methylimidazole, triethylenediamine, and/or triphenylphosphine as catalysts to form a carboxylic acid half-ester, and said half-ester is then oxyalkylated with at least one alkylene oxide, preferably ethylene oxide, in the presence of N-methylimidazole, triethylenediamine, triphenylphosphine, thiodialkylene glycol, employing a mixture of at least two of the compounds cited as catalysts.

    摘要翻译: 为了制备聚酯或聚醚多元醇多元醇,羟基数为15至250的多元醇,优选二至六官能的聚醚多元醇在至少一种羧酸酐,优选邻苯二甲酸酐的存在下,在N-甲基咪唑,三亚乙基二胺, 和/或三苯基膦作为催化剂形成羧酸半酯,然后在N-甲基咪唑,三亚乙基二胺,三苯基膦,硫代亚烷基二醇的存在下,将所述半酯与至少一种烯化氧,优选环氧乙烷进行烷氧基化, 至少两种引用为催化剂的化合物的混合物。

    Process for the preparation of cellular and non-cellular polyurethanes
    7.
    发明授权
    Process for the preparation of cellular and non-cellular polyurethanes 失效
    制备细胞和非细胞聚氨酯的方法

    公开(公告)号:US4481309A

    公开(公告)日:1984-11-06

    申请号:US598246

    申请日:1984-04-09

    IPC分类号: C08G18/48 C08G18/14

    CPC分类号: C08G18/4887

    摘要: The invention relates to a process for the preparation of cellular or non-cellular polyurethanes through the reaction of organic polyisocyanates with a polyether-polyester polyol component containing di- to tetrafunctional polyether-polyester polyols having hydroxyl numbers of from 10 to 200, which are themselves prepared by esterifying conventional di- to tetrafunctional polyether polyols with carboxylic acid anhydrides, preferably aromatic carboxylic acid anhydrides, in the presence of selected catalysts to form carboxylic acid half esters, and oxyalkylating the resulting carboxylic acid half esters with alkylene oxides in the presence of N-methylimidazole, triethylene diamine, triphenylphosphine or mixtures thereof with thiodialkylene glycol as catalysts.

    摘要翻译: 本发明涉及一种通过有机多异氰酸酯与聚醚 - 聚酯多元醇组分的反应来制备细胞或非细胞聚氨酯的方法,所述聚醚 - 聚酯多元醇组分含有羟基数为10至200的二 - 四官能聚醚 - 聚酯多元醇,它们本身是 通过在常规二 - 四官能聚醚多元醇与羧酸酐(优选芳族羧酸酐)的酯化反应中,在选择的催化剂存在下酯化常规二 - 四官能聚醚多元醇以形成羧酸半酯,并在N存在下,用环氧烷烷氧基化所得羧酸半酯 三甲基咪唑,三亚乙基二胺,三苯基膦或其与硫代亚烷基二醇的混合物作为催化剂。

    Polyester polyols liquid at room temperature and their preparation and
use in preparing plastics by polyisocyanate addition polymerization
    8.
    发明授权
    Polyester polyols liquid at room temperature and their preparation and use in preparing plastics by polyisocyanate addition polymerization 失效
    聚酯多元醇液体在室温下及其制备和用途通过多异氰酸酯加成聚合制备塑料

    公开(公告)号:US4778830A

    公开(公告)日:1988-10-18

    申请号:US127270

    申请日:1987-12-01

    摘要: Disclosed are polyester polyols liquid at 25.degree. C., having an average functionality of from 2 to 3, a hydroxyl number of from 25 to 400, an acid number smaller than 10 and a viscosity at 25.degree. C. of from 200 to 10,000 mPas, which contain in bonded form units having at least one of the structures--O--CH.sub.2 --CH(CH.sub.3)--CH.sub.2 --CH.sub.2 --CH.sub.2 --O--,--O--CH.sub.2 --CH(C.sub.2 H.sub.5)--CH.sub.2 --CH.sub.2 --O--,--OC--CH(CH.sub.3)--CH.sub.2 --CH.sub.2 --CO--and--OC--CH(C.sub.2 H.sub.5)--CH.sub.2 --CO--which are prepared by the polycondensation or transesterification of 2-methyl-1,5-pentanediol, 2-ethyl-1,4-butanediol, 2-methyl-glutaric acid and/or 2-ethyl succinic acid or their derivatives, optionally while using other organic polycarboxylic acids and multivalent aliphatic alcohols and are useful for preparing non-cellular or cellular polyurethane plastics or polyurethane-polyurea plastics.

    摘要翻译: 公开了在25℃下的平均官能度为2至3,羟基数为25至400,酸值小于10,25℃下的粘度为200至10,000mPas的聚酯多元醇液体 (CH 3)-CH 2 -CH 2 -CH 2 -O - , - O-CH 2 -CH(C 2 H 5)-CH 2 -CH 2 -O-的结构中至少一个具有键合形式的单元, -OC-CH(CH 3)-CH 2 -CH 2 -CO-和-OC-CH(C 2 H 5)-CH 2 -CO-,它们是通过2-甲基-1,5-戊二醇,2-乙基-2-甲基-1,5-戊二醇的缩聚或酯交换制备的, 1,4-丁二醇,2-甲基 - 戊二酸和/或2-乙基琥珀酸或其衍生物,任选地同时使用其它有机多元羧酸和多价脂族醇,并且可用于制备非细胞或细胞聚氨酯塑料或聚氨酯 - 聚脲塑料。

    Process for the preparation of polyester polyols and/or
polyester-polyether polyols
    9.
    发明授权
    Process for the preparation of polyester polyols and/or polyester-polyether polyols 失效
    制备聚酯多元醇和/或聚酯 - 聚醚多元醇的方法

    公开(公告)号:US4452997A

    公开(公告)日:1984-06-05

    申请号:US452411

    申请日:1982-12-23

    摘要: Polyester polyols and/or polyester-polyether polyols are prepared by reacting polyols preferably di- to hexafunctional polyether polyols with hydroxyl numbers of 30 to 200 with at least one carboxylic anhydride, preferably glutaric anhydride, resulting in a carboxylic acid half ester which is subsequently oxyalkylated with at least one alkylene oxide, preferably ethylene oxide in the presence of at least 1 thiodialkylene glycol, preferably thiodiethylene and/or thiodipropylene glycol.

    摘要翻译: 聚酯多元醇和/或聚酯 - 聚醚多元醇通过使多元醇优选二羟基至六官能的聚醚多元醇与羟基数为30至200的化合物与至少一种羧酸酐,优选戊二酸酐反应制备,得到羧酸半酯,随后将其烷氧基化 与至少一种烯化氧,优选环氧乙烷在至少1个硫代亚烷基二醇存在下,优选硫代二乙烯和/或硫代二丙二醇。

    Process for the preparation of elastic flexible polyurethane foams
    10.
    发明授权
    Process for the preparation of elastic flexible polyurethane foams 失效
    制备弹性柔性聚氨酯泡沫的方法

    公开(公告)号:US4421872A

    公开(公告)日:1983-12-20

    申请号:US414572

    申请日:1982-09-02

    IPC分类号: C08G18/48 C08G18/00 C08G18/14

    摘要: For the preparation of elastic flexible polyurethane foams with improved breaking elongation and very good setting behavior as well as densities from 7 to 120 grams per liter, organic polyisocyanates are reacted in the presence of blowing agents, catalysts and, optionally, auxiliaries and/or additives with polyols based on polyoxyalkylene polyols having terminal oxyethylene blocks of a degree of oxyethylation of 1 to 13 and which have a content of primary hydroxyl groups at the corresponding degree of oxyethylation equal or exceeding the value of curve A in the Figure in which curve A describing the relationship of the content of primary hydroxyl groups with the degree of oxyethylation.

    摘要翻译: 为了制备具有改进的断裂伸长率和非常好的凝固性能以及7至120克/升的密度的弹性柔性聚氨酯泡沫,有机多异氰酸酯在发泡剂,催化剂和任选的助剂和/或添加剂的存在下反应 具有基于聚氧化烯多元醇的多羟基化合物,其具有1至13的羟基氧化度的末端氧乙烯嵌段,并且其具有在相应的氧乙基化度下的伯羟基含量等于或超过图中曲线A的值,其中描述 伯羟基含量与氧乙基化程度的关系。