Using aqueous binders in producing abrasive materials
    2.
    发明授权
    Using aqueous binders in producing abrasive materials 失效
    使用含水粘合剂生产磨料

    公开(公告)号:US07008312B2

    公开(公告)日:2006-03-07

    申请号:US10759240

    申请日:2004-01-20

    摘要: The present invention relates to the use of an aqueous polymer dispersion comprising dispersed particles of at least one polymer A1 having a glass transition temperature, Tg, of from −20° C. to +35° C. and obtainable through free-radical emulsion polymerization in the presence of a polymer A2 synthesized from from 50 to 99.5% by weight of at least one ethylenically unsaturated monocarboxylic and/or dicarboxylic acid whose carboxylic groups can form an anhydride group, or mixtures thereof, from 0.5 to 50% by weight of at least one ethylenically unsaturated compound selected from the esters of ethylenically unsaturated monocarboxylic acids and the monoesters and diesters of ethylenically unsaturated dicarboxylic acids with an amine containing at least one hydroxyl group, and up to 20% by weight of at least one further monomer as binder for producing abrasive material.

    摘要翻译: 本发明涉及包含至少一种玻璃化转变温度Tg为-20℃至+ 35℃的聚合物A1的分散颗粒的聚合物水分散体的使用,可通过自由基乳液聚合获得 在由50至99.5重量%的至少一种其羧基可以形成酸酐基团的烯属不饱和单羧酸和/或二羧酸或其混合物合成的聚合物A2存在下,其浓度为0.5至50重量% 至少一种烯键式不饱和化合物,其选自烯属不饱和单羧酸的酯和烯键式不饱和二羧酸的单酯和二酯与含有至少一个羟基的胺,以及至多20重量%的另外的单体作为粘合剂 生产研磨材料。

    Apparatus for mechanically processing paper and having improved roller supports and method for replacing such rollers
    3.
    发明授权
    Apparatus for mechanically processing paper and having improved roller supports and method for replacing such rollers 有权
    用于机械加工纸张并具有改进的辊支架的装置以及用于更换这种辊子的方法

    公开(公告)号:US06176287B1

    公开(公告)日:2001-01-23

    申请号:US09228657

    申请日:1999-01-12

    申请人: Manfred Weber

    发明人: Manfred Weber

    IPC分类号: B31F500

    摘要: The invention concerns an apparatus for mechanically treating paper and includes two engraved cylinders each mounted between two support plates of the apparatus in a mutually tangential manner by means of cylindrical bearings affixed in corresponding housings fitted into the support plates, a first roller of the engraved rollers being mounted on a cradle pivoting relative to a stationary base plate on which is mounted the second engraved roller, the invention being characterized in that the cylindrical bearings are affixed in housings bounded at least in part by a detachable bracket which, when detached, frees a radial aperture through which the cylindrical bearing can be removed along a radial direction.

    摘要翻译: 本发明涉及一种用于机械处理纸张的装置,包括两个雕刻的圆柱体,每个雕刻的圆柱体通过固定在装配到支撑板中的相应的壳体中的圆柱形轴承相互切向地安装在设备的两个支撑板之间,雕刻辊的第一辊 安装在相对于其上安装有第二雕刻辊的固定基板枢转的托架上,本发明的特征在于,圆柱形轴承固定在至少部分地由可拆卸支架限定的壳体中,该可拆卸支架在分离时释放 径向孔,圆柱形轴承可以沿着径向方向被移除。

    Recyclable carpet floor covering
    4.
    发明授权
    Recyclable carpet floor covering 失效
    可回收地毯地毯

    公开(公告)号:US5472763A

    公开(公告)日:1995-12-05

    申请号:US148649

    申请日:1993-11-01

    摘要: There is described a recyclable carpet floor covering comprising a backing, a tied-in pile yarn and a back finish with or without a secondary backing adhered to the (primary) backing, wherein the pile yarn, the (primary) backing and a secondary backing comprise polyester fibers and the back finish for the (primary) backing and for adhering a secondary backing comprises a consolidating and adhering composition comprising a combination of 10-70% by weight of a water-soluble or -dispersible first polyester A, and 90-30% by weight of a water-insoluble second polyester B, There are further described a process for producing the recyclable carpet floor covering and also an aqueous preparation of the consolidating and adhering composition comprising the polyesters A and B and the use thereof for consolidating the carpet floor coverings and optionally adhering them to secondary backings.

    摘要翻译: 描述了一种可回收的地毯覆盖物,其包括背衬,捆扎绒毛纱线和具有或不具有附着到(主要)背衬)上的辅助背衬的背面饰面,其中绒头纱线,(主要)背衬和第二背衬 包括聚酯纤维,并且用于(主要)背衬和用于粘附第二背衬的背面涂层包括固结和粘附组合物,其包含10-70重量%的水溶性或可分散的第一聚酯A和90重量% 30重量%的水不溶性第二聚酯B。还描述了可再生地毯地毯覆盖物的制备方法以及包含聚酯A和B的固结和粘合组合物的水性制剂及其用于固化 地毯地毯,并可选地将它们粘附到二次背衬上。

    Rotational viscosimeter
    6.
    发明授权
    Rotational viscosimeter 失效
    旋转粘度计

    公开(公告)号:US4592226A

    公开(公告)日:1986-06-03

    申请号:US744562

    申请日:1985-06-14

    IPC分类号: G01N11/14 G01N33/38

    CPC分类号: G01N33/383 G01N11/14

    摘要: A rotational viscosimeter is used for determining the flow properties of flowable mixtures having coarse grain components; the device includes a pot with a centrally journaled, rotatable cylinder therein wherein the annular gap between the inner cylinder and pot is at least five times greater than the largest particle diameter of the solids located in this annular gap, there is a sealing liquid located in the pot under and around a lower end of the inner cylinder at least up to the lower lip formed thereon. The surface of the inner cylinder and/or the inner surface of the pot beyond the sealing liquid level is roughened or provided with grooves.

    摘要翻译: 旋转粘度计用于确定具有粗颗粒组分的可流动混合物的流动性质; 该装置包括在其中具有中心轴颈的可旋转气缸的罐,其中内筒和罐之间的环形间隙比位于该环形间隙中的固体的最大颗粒直径大至少五倍,存在位于 内筒下端至少在其下端形成的底盆至少直到形成在其上的下唇缘。 内筒的表面和/或超过密封液面的罐的内表面被粗糙化或设置有凹槽。

    PROCESS FOR REMOVAL OF HYDROXYACETONE FROM PHENOL
    7.
    发明申请
    PROCESS FOR REMOVAL OF HYDROXYACETONE FROM PHENOL 审中-公开
    从苯酚中除去羟基酮的方法

    公开(公告)号:US20070244346A1

    公开(公告)日:2007-10-18

    申请号:US11736531

    申请日:2007-04-17

    IPC分类号: C07C37/08

    CPC分类号: C07C37/08 C07C39/04

    摘要: The present invention relates to method for producing phenol which includes: a) oxidizing cumene to form an oxidation product containing cumene hydroperoxide; b) cleaving the oxidation product using an acidic catalyst to form a cleavage product containing phenol, acetone and impurities; c) neutralizing and washing the cleavage product with a basic aqueous medium to obtain a neutralized cleavage product; d) separating the neutralized cleavage product by at least one distillation step into at least a phenol containing fraction and an aqueous fraction comprising hydroxyacetone; e) treating the aqueous fraction with an oxidizing agent in presence of a base to obtain a basic aqueous medium reduced in hydroxyacetone; f) recycling at least a portion of the basic aqueous medium to the neutralizing and washing step c); and g) recovering phenol from the phenol containing fraction obtained in step d).

    摘要翻译: 本发明涉及苯酚的制备方法,其包括:a)氧化枯烯以形成含有氢过氧化枯烯的氧化产物; b)使用酸性催化剂切割氧化产物以形成含有苯酚,丙酮和杂质的裂解产物; c)用碱性水性介质中和洗涤裂解产物以获得中和的裂解产物; d)将中和的裂解产物通过至少一个蒸馏步骤分离成至少含苯酚的级分和包含羟基丙酮的含水级分; e)在碱的存在下用氧化剂处理含水部分以获得羟基丙酮中还原的碱性水性介质; f)将至少一部分碱性水性介质再循环到中和和洗涤步骤c)中; 和g)从在步骤d)中获得的含苯酚馏分中回收苯酚。

    Process for the preparation of phenolic compounds, for separating phenol from cleavage product mixtures, and an apparatus
    8.
    发明申请
    Process for the preparation of phenolic compounds, for separating phenol from cleavage product mixtures, and an apparatus 有权
    酚类化合物的制备方法,用于从分离产物混合物中分离苯酚和设备

    公开(公告)号:US20050034970A1

    公开(公告)日:2005-02-17

    申请号:US10888533

    申请日:2004-07-09

    摘要: To improve energy efficiency of prior art processes while preserving the standards of quality and total yield of desired end products, a process for the preparation of phenolic compounds is proposed. The process of the invention comprises working-up of the cleavage product mixtures by distillation, which comprises resolving the cleavage product mixture into at least three fractions in a single distillation step by feeding the cleavage product mixture to the side of a distillation column, removing a first fraction comprising the ketone at the top of the distillation column, removing a second fraction comprising the phenolic compound at the bottom of the distillation column, and removing a third fraction comprising unreacted the alkylaryl compound and the hydroxy ketone, and water, as side stream, whereby the side stream take-off is situated above the feed of cleavage product mixture to the distillation column, characterized by removing heat from the distillation column, whereby the heat take-off is situated above the side stream take-off of the third fraction, and a process for separating phenol from cleavage product mixtures, wherein the cleavage product mixture prior feeding into the distillation column, is preheated to a temperature of above 70° C. at standard pressure, preferably to a temperature of above 100° C., more preferably to a temperature between 110° C. and 180° C., most preferred to a temperature of about 140° C. to 146° C., and an apparatus suitable therefore.

    摘要翻译: 为了提高现有技术工艺的能量效率,同时保持所需最终产品的质量和总产量的标准,提出了制备酚类化合物的方法。 本发明的方法包括通过蒸馏处理裂解产物混合物,其包括在单一蒸馏步骤中将裂解产物混合物分解成至少三个级分,将裂解产物混合物加入到蒸馏塔的侧面,除去 在蒸馏塔顶部包含酮的第一馏分,在蒸馏塔的底部除去包含酚类化合物的第二级分,并除去包含未反应的烷基芳基化合物和羟基酮的第三馏分和水作为侧流 ,由此侧流起飞位于裂解产物混合物的进料到蒸馏塔的上方,其特征在于从蒸馏塔除去热量,由此该热量取出位于第三馏分的侧流起飞之上 以及从裂解产物混合物中分离苯酚的方法,其中先前加入的裂解产物混合物 蒸馏塔在标准压力下预热至高于70℃的温度,优选至高于100℃的温度,更优选至110℃至180℃的温度,最优选为 温度为约140℃至146℃,因此适用的装置。

    Process for the cleavage of alkylaryl hydroperoxides

    公开(公告)号:US06444861B1

    公开(公告)日:2002-09-03

    申请号:US09978718

    申请日:2001-10-18

    IPC分类号: C07C3708

    摘要: A process for the cleavage of alkylaryl hydroperoxides includes steps for producing a mixture of a concentrate that contains at least one alkylaryl hydroperoxide to be cleaved and a cleavage product obtained from the cleavage of an alkylaryl hydroperoxide, dividing this mixture into at least two parts and cleaving the alkylaryl hydroperoxides in parallel at different temperatures. One of the two parts is treated at a temperature sufficiently high for an integrated thermal post-treatment to be achieved. The process consumes less energy since less steam has to be used. Problems which can result from fouling in heat exchangers are largely prevented. No second feed point for alkylaryl hydroperoxide has to be provided. The process can be used in the preparation of phenol and acetone by the Hock method.