Additive combination for improving the processing properties of
water-containing mixtures of building materials
    4.
    发明授权
    Additive combination for improving the processing properties of water-containing mixtures of building materials 失效
    用于改善建筑材料含水混合物的加工性能的添加剂组合

    公开(公告)号:US5387626A

    公开(公告)日:1995-02-07

    申请号:US234730

    申请日:1994-04-28

    CPC classification number: C04B40/0039 C04B24/383 C04B28/02 C04B2201/10

    Abstract: Additive combination for improving the processing properties of water-containing mixtures of building materials.The invention relates to an additive combination for water-containing mixtures of building materials, comprisinga) at least 65% by weight, preferably 65 to 98% by weight, of a water-soluble cellulose ether or a derivative thereof,b) from 1 to 15% by weight of polyacrylamide,c) from 1 to 20% by weight of an alkali metal salt or ammonium salt of a crosslinked, ungrafted or starch-grafted polyacrylate,d) from 0 to 20% by weight of a starch ether ande) from 0 to 15% by weight of a water-soluble alkali metal salt, alkaline earth metal salt or ammonium salt of an arylsulfonic acid-formaldehyde condensation product or of a sulfonic acid-modified product of the polycondensation of melamine and formaldehyde,and to building material mixtures which contain these additive combinations.The additive combinations according to the invention are suitable for all water-containing mixtures of building materials, in particular for plasters, mortars, adhesive cements and fillers.

    Abstract translation: 用于改善建筑材料含水混合物的加工性能的添加剂组合。 本发明涉及建筑材料的含水混合物的添加剂组合物,其包含a)至少65重量%,优选65至98重量%的水溶性纤维素醚或其衍生物,b)1 至15重量%的聚丙烯酰胺,c)1至20重量%的交联,未接枝或淀粉接枝的聚丙烯酸酯的碱金属盐或铵盐,d)0至20重量%的淀粉醚和 e)0至15重量%的芳基磺酸 - 甲醛缩合产物的水溶性碱金属盐,碱土金属盐或铵盐或三聚氰胺与甲醛缩聚的磺酸改性产物,和 包含这些添加剂组合的建筑材料混合物。 根据本发明的添加剂组合适用于建筑材料的所有含水混合物,特别是用于石膏,砂浆,粘合剂水泥和填料的所有含水混合物。

    Ceramic fiber refractory moldable compositions
    5.
    发明授权
    Ceramic fiber refractory moldable compositions 失效
    陶瓷纤维耐火材料组合物

    公开(公告)号:US5053362A

    公开(公告)日:1991-10-01

    申请号:US250030

    申请日:1988-09-27

    Abstract: A moldable refractory composition containing from about 42 to about 83% by weight of a liquid vehicle, such as water; from about 13 to 50% by weight of ceramic fiber; from about 0.5 to 7% by weight of an inorganic binder derived from an inorganic colloidal dispersion having active hydroxyl groups capable of reacting with hydroxyl groups of the ceramic fiber; and from about 0.5 to 5% by weight of a high molecular weight organic resin which serves multiple functions including tackifier of the wet composition, cohesiveness of the wet composition, appropriate rheology of the wet composition to provide shelf life and a wide range of applications and in dry composition to provide green strength. Also described is the method of manufacture for the subject refractory moldable composition. Upon drying, the moldable composition adheres well to surfaces such as those encountered in furnacing applications and construction applications to metals and other ceramic materials and dries to give an essentially crack-free refractory shape which exhibits greater resilience than heretofore known moldable refractory compositions. The dried moldable composition is useful as thermal insulation at temperatures up to 1650.degree. C. (3000.degree. F.) dependent upon the type of ceramic fibers and inorganic binders contained as ingredients in the composition.

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