Non-woven inorganic fiber mat
    41.
    发明授权
    Non-woven inorganic fiber mat 失效
    无纺无机纤维垫

    公开(公告)号:US07060639B1

    公开(公告)日:2006-06-13

    申请号:US09319438

    申请日:1998-01-23

    IPC分类号: B32B9/00

    摘要: A non-woven mat of inorganic fiber is disclosed having a substance which is lower at the edges of the mat than in the remainder of the mat. Apparatus for making such a mat includes: a source of a slurry of inorganic fiber in a liquid; a forming wire disposed to move past the source, the liquid passing through the forming wire to deposit the inorganic fiber on the forming wire; a mask across a part of the width of the forming wire to hinder passage of the liquid through the forming wire over the part, the effectiveness of the mask varying in the direction of movement of the forming wire past the slurry source. A method of making the mat includes passing a forming wire past a slurry of inorganic fibers in a liquid while masking a part of the width of the forming wire as it passes through the slurry, the masking varying along the length of the forming wire as it passes through the slurry; and urging the slurry against the forming wire and causing the liquid to pass through the forming wire, whereby a non-woven mat of inorganic fiber is formed having an uneven substance (weight/unit area) in the cross direction.

    摘要翻译: 公开了一种无机纤维的无纺毡,其具有在垫的边缘处比垫的其余部分低的物质。 用于制造这种垫的装置包括:无机纤维在液体中的浆料源; 设置成移动通过所述源的成形线,所述液体通过所述成形线,以将所述无机纤维沉积在所述成形网上; 掩模穿过成形网的宽度的一部分,以阻止液体通过成形网通过部件,掩模在成形线通过浆料源的运动方向上变化的效果。 制造垫的方法包括使成形线通过无机纤维的浆料在液体中,同时在形成线的宽度的一部分通过浆料时遮蔽成形丝的一部分宽度,掩模沿着成形丝的长度变化 通过浆料; 并且将浆料推压在成形网上并使液体通过成形网,由此在横向上形成具有不均匀物质(重量/单位面积)的无机纤维无纺布。

    Method of making wallboard
    43.
    发明授权
    Method of making wallboard 有权
    墙板制​​作方法

    公开(公告)号:US06929875B2

    公开(公告)日:2005-08-16

    申请号:US10701801

    申请日:2003-11-05

    摘要: The present invention provides a dispersant and foaming agent combination that is useful in the production of gypsum wallboard and other aqueous cementitious products, a method of forming a gypsum wallboard and a gypsum wallboard. The dispersant in the combination according to the invention is a naphthalene sulfonate-aldehyde condensate alkali salt polymer having a weight average molecular weight of from about 17,000 to about 47,000. The alkali is preferably an alkali metal and/or an alkaline earth metal. The aldehyde is preferably formaldehyde. The foaming agent used in the combination according to the invention is a soap, preferably an alkali salt of an alkyl ether sulfate and/or an alkyl sulfate. The combination of a high molecular weight dispersant and a foaming agent produces a gypsum wallboard core effect that more efficiently entrains air (i.e., creates void space), thereby lowering overall board weight without detrimentally affecting strength. A gypsum wallboard formed using the dispersant and foaming agent combination according to the invention exhibits a higher nail pull value than gypsum wallboard formed using a conventional dispersant and a foaming agent at the same solids loading ratio.

    摘要翻译: 本发明提供了可用于生产石膏墙板和其他水性水泥质产品的分散剂和发泡剂组合,形成石膏墙板和石膏墙板的方法。 根据本发明的组合中的分散剂是重均分子量为约17,000至约47,000的萘磺酸 - 醛缩合物碱金属盐聚合物。 碱优选为碱金属和/或碱土金属。 醛优选为甲醛。 根据本发明的组合中使用的发泡剂是皂,优选烷基醚硫酸盐和/或烷基硫酸盐的碱金属盐。 高分子量分散剂和发泡剂的组合产生更有效地夹带空气(即,产生空隙空间)的石膏墙板芯效应,从而降低整体板重量而不会不利地影响强度。 使用根据本发明的分散剂和发泡剂组合形成的石膏墙板与使用常规分散剂和发泡剂以相同的固体负载比形成的石膏墙板相比表现出较高的拔牙力。

    Method of making wallboard
    44.
    发明申请
    Method of making wallboard 有权
    墙板制​​作方法

    公开(公告)号:US20040091751A1

    公开(公告)日:2004-05-13

    申请号:US10701801

    申请日:2003-11-05

    IPC分类号: B32B013/00 B29C044/20

    摘要: The present invention provides a dispersant and foaming agent combination that is useful in the production of gypsum wallboard and other aqueous cementitious products, a method of forming a gypsum wallboard and a gypsum wallboard. The dispersant in the combination according to the invention is a naphthalene sulfonate-aldehyde condensate alkali salt polymer having a weight average molecular weight of from about 17,000 to about 47,000. The alkali is preferably an alkali metal and/or an alkaline earth metal. The aldehyde is preferably formaldehyde. The foaming agent used in the combination according to the invention is a soap, preferably an alkali salt of an alkyl ether sulfate and/or an alkyl sulfate. The combination of a high molecular weight dispersant and a foaming agent produces a gypsum wallboard core effect that more efficiently entrains air (i.e., creates void space), thereby lowering overall board weight without detrimentally affecting strength. A gypsum wallboard formed using the dispersant and foaming agent combination according to the invention exhibits a higher nail pull value than gypsum wallboard formed using a conventional dispersant and a foaming agent at the same solids loading ratio.

    摘要翻译: 本发明提供了可用于生产石膏墙板和其他水性水泥质产品的分散剂和发泡剂组合,形成石膏墙板和石膏墙板的方法。 根据本发明的组合中的分散剂是重均分子量为约17,000至约47,000的萘磺酸 - 醛缩合物碱金属盐聚合物。 碱优选为碱金属和/或碱土金属。 醛优选为甲醛。 根据本发明的组合中使用的发泡剂是皂,优选烷基醚硫酸盐和/或烷基硫酸盐的碱金属盐。 高分子量分散剂和发泡剂的组合产生更有效地夹带空气(即,产生空隙空间)的石膏墙板芯效应,从而降低整体板重量而不会不利地影响强度。 使用根据本发明的分散剂和发泡剂组合形成的石膏墙板与使用常规分散剂和发泡剂以相同的固体负载比形成的石膏墙板相比表现出较高的拔牙力。

    DISPERSANT AND FOAMING AGENT COMBINATION
    45.
    发明申请
    DISPERSANT AND FOAMING AGENT COMBINATION 有权
    分散剂和发泡剂组合

    公开(公告)号:US20040028956A1

    公开(公告)日:2004-02-12

    申请号:US10214467

    申请日:2002-08-07

    IPC分类号: B32B013/00

    摘要: The present invention provides a dispersant and foaming agent combination that is useful in the production of gypsum wallboard and other aqueous cementitious products, a method of forming a gypsum wallboard and a gypsum wallboard. The dispersant in the combination according to the invention is a naphthalene sulfonate-aldehyde condensate alkali salt polymer having a weight average molecular weight of from about 17,000 to about 47,000. The alkali is preferably an alkali metal and/or an alkaline earth metal. The aldehyde is preferably formaldehyde. The foaming agent used in the combination according to the invention is a soap, preferably an alkali salt of an alkyl ether sulfate and/or an alkyl sulfate. The combination of a high molecular weight dispersant and a foaming agent produces a gypsum wallboard core effect that more efficiently entrains air (i.e., creates void space), thereby lowering overall board weight without detrimentally affecting strength. A gypsum wallboard formed using the dispersant and foaming agent combination according to the invention exhibits a higher nail pull value than gypsum wallboard formed using a conventional dispersant and a foaming agent at the same solids loading ratio.

    摘要翻译: 本发明提供了可用于生产石膏墙板和其他水性水泥质产品的分散剂和发泡剂组合,形成石膏墙板和石膏墙板的方法。 根据本发明的组合中的分散剂是重均分子量为约17,000至约47,000的萘磺酸 - 醛缩合物碱金属盐聚合物。 碱优选为碱金属和/或碱土金属。 醛优选为甲醛。 根据本发明的组合中使用的发泡剂是皂,优选烷基醚硫酸盐和/或烷基硫酸盐的碱金属盐。 高分子量分散剂和发泡剂的组合产生更有效地夹带空气(即,产生空隙空间)的石膏墙板芯效应,从而降低整体板重量而不会不利地影响强度。 使用根据本发明的分散剂和发泡剂组合形成的石膏墙板与使用常规分散剂和发泡剂以相同的固体负载比形成的石膏墙板相比表现出较高的拔牙力。

    Method for producing a sintered porous body
    48.
    发明授权
    Method for producing a sintered porous body 有权
    烧结多孔体的制​​造方法

    公开(公告)号:US06365092B1

    公开(公告)日:2002-04-02

    申请号:US09338060

    申请日:1999-06-23

    IPC分类号: B28B152

    摘要: A shaped sintered fibrous porous body exhibits a structure with a three-dimensional corrugated or undulating shape and porosity. The structure includes inorganic fibers joined as a sintered structure and is produced in one embodiment by: dispersing and suspending a fiber mixture including inorganic fibers and organic binder, such as cellulose fibers, or other organic compounds, in a liquid to form a fibrous slurry; forming a body including the fiber mixture by depositing the slurry on a shaped screen to thereby shape the fibrous body to a three-dimensional configuration simultaneously with the formation of the body; removing at least a part of the liquid from the fibrous body through the screen by a vacuum; drying the fibrous body in the ambient atmosphere or in a furnace; heating the dried fibrous body to a first elevated temperature where the organic binder is removed from the body; subsequently heating the dried body to a second elevated temperature where the inorganic fibers are partly fused to form a sintered porous fibrous body with a three-dimensional corrugated or undulating configuration. The body is suitable for use as or included in reactor elements to provide gas/condensed phase mass transfer areas in a system involving processing or teatment of gases and/or vapors through distillation, absorption and/or catalytic reactions or the like requiring gas/condensed phase mass transfer, The body is also for enhancing fluid-catalyst mass transfer at low pressure drop and contacting between fluids or combinations thereof in single phase catalytic reactors.

    摘要翻译: 成形烧结纤维状多孔体呈现三维波状或起伏形状和孔隙率的结构。 该结构包括作为烧结结构接合的无机纤维,并且在一个实施方案中通过以下方式制备:将包含无机纤维和有机粘合剂如纤维素纤维或其它有机化合物的纤维混合物分散和悬浮在液体中以形成纤维浆料; 通过将浆料沉积在成形的筛网上形成包括纤维混合物的主体,从而在形成身体的同时将纤维体形成三维构型; 通过真空通过筛网从纤维体中去除至少一部分液体; 在环境气氛或炉子中干燥纤维体; 将干燥的纤维体加热到第一高温,其中有机粘合剂从身体去除; 随后将干燥的物体加热至无机纤维部分熔融的第二高温,形成具有三维波纹或起伏构型的烧结多孔纤维体。 本体适合用作或包含在反应器元件中,以在涉及通过蒸馏,吸收和/或催化反应等进行气相和/或蒸汽处理或喷雾的系统中提供气体/冷凝相质量传递区域,其需要气体/冷凝 本体还用于在低压降下增强流体 - 催化剂传质,并在单相催化反应器中使流体或其组合之间接触。