Concrete preparation with aqueous solution of product from polyether
with polymethylene polyphenyl polyisocyanate
    2.
    发明授权
    Concrete preparation with aqueous solution of product from polyether with polymethylene polyphenyl polyisocyanate 失效
    具有由聚醚与聚亚甲基多苯基多异氰酸酯制成的产品水溶液的混凝土制备

    公开(公告)号:US4228053A

    公开(公告)日:1980-10-14

    申请号:US7588

    申请日:1979-01-29

    摘要: The structural strength properties of concrete and its resistance to sealing are improved by incorporating into the concrete-forming mixture an aqueous solution obtained by admixing polymethylene polyphenyl polyisocyanates with less than a stoichiometric amount of a polyethylene glycol (MW 600 to 3000) or polypropylene glycol tipped with 15 to 85 percent ethylene oxide (MW 1000 to 3500) and, within a short time of completing the admixture but during the period where said mixture is completely soluble in water, dissolving said mixture in water. Optionally, a difunctional extender is added to the solution so obtained in an amount less than that required to react with all the excess isocyanate groups.

    摘要翻译: 混凝土的结构强度特性及其耐密封性通过将混合多亚甲基多苯基多异氰酸酯与少于化学计量量的聚乙二醇(MW 600至3000)或聚丙二醇封端得到的水溶液 具有15至85%的环氧乙烷(MW 1000至3500),并且在完成混合物的短时间内,但在所述混合物完全溶于水的期间,将所述混合物溶解在水中。 任选地,向如此获得的溶液中加入少量与所有过量异氰酸酯基团反应所需的量的双官能增量剂。

    A cocatalyst system for trimerizing isocyanates
    4.
    发明授权
    A cocatalyst system for trimerizing isocyanates 失效
    用于三聚异氰酸酯的助催化剂体系

    公开(公告)号:US4101465A

    公开(公告)日:1978-07-18

    申请号:US729899

    申请日:1976-10-06

    摘要: A novel cocatalyst combination for the trimerization of polyisocyanates to polyisocyanurates is disclosed. The catalyst combination comprises: (a) alkali metal glycine salts, (b) hydroxyalkyltrialkylammonium carboxylate salts, and (c) alkali metal salts selected from the group consisting of (i) alkali metal salts of N-phenyl aliphatic amides, and (ii) alkali metal salts of aliphatic carboxylic acids. The use of the cocatalyst combination provides for the facile formation of polyisocyanurate foam laminate boardstock which is characterized by good fire resistance and good physical properties.

    摘要翻译: 公开了一种用于将多异氰酸酯三聚化成聚异氰脲酸酯的新型助催化剂组合物。 催化剂组合包括:(a)碱金属甘氨酸盐,(b)羟烷基三烷基铵羧酸盐,和(c)选自(i)N-苯基脂族酰胺的碱金属盐和(ii) 脂肪族羧酸的碱金属盐。 助催化剂组合的使用提供了容易形成聚异氰脲酸酯泡沫层压板材,其特征在于具有良好的耐火性和良好的物理性能。

    Process for preparing particle board and polyisocyanate-phosphorus
compound release agent composition therefor
    5.
    发明授权
    Process for preparing particle board and polyisocyanate-phosphorus compound release agent composition therefor 失效
    制备刨花板和多异氰酸酯 - 磷化合物脱模剂组合物的方法

    公开(公告)号:US4257996A

    公开(公告)日:1981-03-24

    申请号:US139872

    申请日:1980-04-14

    摘要: The use of polyisocyanates as binders in the preparation of particle boards is subject to the drawback that the boards exhibit a tendency to adhere to the face of the platens used in their formation. This problem is minimized by utilizing, in association with the polyisocyanate to be used as binder, minor amounts of one or more phosphates or thiophosphates of the formula: ##STR1## where R=alkyl (C.sub.3 and higher), alkenyl (C.sub.3 and higher), aryl, alkyl-substituted aryl, ##STR2## (where R.sub.2 is alkyl, aryl, or alkyl-substituted aryl, A and B are H, methyl, chloromethyl, 2,2,2-trichloromethyl, m=1-25) and lower-alkyl substituted by from 1 to 2 acyloxy groups where acyl is the residue of an aliphatic carboxylic acid having at least 2 carbon atoms; R.sub.1 is Cl, Br, lower-alkoxy, lower-alkylmercapto, arylamino, mono(lower-alkyl)amino, di(lower-alkyl)amino, hydroxy(lower-alkylene)oxy, aryloxy, hydrocarbylureido, and an enol residue; X=O or S and n=1 or 2. The polyisocyanates and the phosphates or thiophosphates are applied to the particles separately, or after preblending one with the other. Whether the components are applied separately or in combination one with the other, they can each be applied either neat or in the form of an emulsion or emulsions.

    摘要翻译: 在制备刨花板时使用多异氰酸酯作为粘合剂具有这样的缺点:板表现出粘附在其形成中使用的压板的表面的倾向。 通过利用与用作粘合剂的多异氰酸酯相关联的少量一种或多种下式的磷酸酯或硫代磷酸酯,其中R =烷基(C3及更高),烯基(C3及更高级) ,芳基,烷基取代的芳基,其中R 2是烷基,芳基或烷基取代的芳基,A和B是H,甲基,氯甲基,2,2,2-三氯甲基,m = 1-25)和 被1至2个酰氧基取代的低级烷基,其中酰基是具有至少2个碳原子的脂族羧酸的残基; R 1是Cl,Br,低级烷氧基,低级烷基巯基,芳基氨基,单(低级 - 烷基)氨基,二(低级 - 烷基)氨基,羟基(低级亚烷基)氧基,芳氧基,烃基脲基和烯醇残基; X = O或S,n = 1或2.多异氰酸酯和磷酸酯或硫代磷酸酯分别施加到颗粒上,或在与另一种预混合之后。 组分是单独使用还是与另一种组合使用,它们各自可以整齐地或以乳液或乳液的形式施用。

    Bituminous composition
    6.
    发明授权
    Bituminous composition 失效
    BITUMINOUS组合物

    公开(公告)号:US4032355A

    公开(公告)日:1977-06-28

    申请号:US631823

    申请日:1975-11-14

    IPC分类号: C08K5/17 C08K5/18 C08L95/00

    CPC分类号: C08K5/17 C08K5/18 C08K5/29

    摘要: Novel bituminous compositions are disclosed which are characterized by elevated Ring and Ball softening points ranging up to about 200.degree. C. They are prepared by the treatment of molten bitumen, in the absence of solvent, with a combination of: (a) an amine selected from the class consisting of an aliphatic amine having from 10 to 20 carbon atoms, and aromatic polyamines; and (b) an isocyanate selected from the class consisting of aliphatic isocyanates having from 10 to 20 carbon atoms, and aromatic polyisocyanates; provided that in any instance in which the amine component is aliphatic, then the isocyanate component is aromatic. The combined weight of (a) and (b) present in the bitumen, is from about 1 to about 10 weight percent based on the weight of bitumen. The bituminous compositions are useful in paving, and roofing applications, especially in countries which experience hot climates.

    Process for preparing particleboard
    7.
    发明授权
    Process for preparing particleboard 失效
    制备刨花板的方法

    公开(公告)号:US4374791A

    公开(公告)日:1983-02-22

    申请号:US306199

    申请日:1981-09-28

    CPC分类号: B29C33/62 B27N3/083 B29C33/60

    摘要: Particle boards are currently prepared by treating the particles (e.g. wood chips) with a binder comprising an organic polyisocyanate and an internal release agent and then subjecting the treated particles to a forming process involving heat and pressure. While the resulting particle board will generally release well from the caul plates of the press after forming, due to the effect of the internal release agent, it has been found that the ease of release is enhanced by precoating the surfaces of the caul plates or platens which come into contact with the particle board with a layer of polytetrafluoroethylene which layer optionally contains an internal release agent.

    摘要翻译: 目前,通过用包含有机多异氰酸酯和内部脱模剂的粘合剂处理颗粒(例如木屑),然后使经处理的颗粒进行涉及热和压力的成形过程来制备颗粒板。 虽然由于内部脱模剂的作用,所得到的刨花板通常会从压制机的止动板良好地释放,但是已经发现,通过预涂涂覆板或压板的表面,已经发现释放的容易性增强 其与刨花板与一层聚四氟乙烯接触,该层任选地含有内部脱模剂。