Reinforced wallboard
    32.
    发明申请
    Reinforced wallboard 有权
    钢筋墙板

    公开(公告)号:US20040092624A1

    公开(公告)日:2004-05-13

    申请号:US10351675

    申请日:2003-01-23

    IPC分类号: B32B031/00 B32B013/00

    摘要: A reinforced wallboard core is prepared from a slurry comprising a mixture of null-calcium sulfate hemihydrate, a cellulose ether additive other than CMC and an amount of water that is sufficient to form a slurry and resulting in a wallboard density of less than 0.8 g/cc. The null-calcium sulfate hemihydrate is hydrated by the water forming a wallboard core reinforced by the cellulose ether additive. The cellulose ether, having a molecular weight of at least about 20,000 and a viscosity grade of at least about 100 cps, is selected to give the reinforced wallboard core improved nail pull resistance and greater flexural strength than unreinforced wallboard of the same density. The reinforced wallboard core may be used for reduced-paper wallboard and/or for lightweight wallboard, for example.

    摘要翻译: 由包含β-硫酸钙半水合物,除CMC以外的纤维素醚添加剂的混合物和足以形成浆料的水的量的浆料制备增强的墙板芯,并导致壁板密度小于0.8g / cc。 β-硫酸钙半水合物通过水形成由纤维素醚添加剂增强的墙板芯水合。 选择具有至少约20,000的分子量和至少约100cps的粘度等级的纤维素醚,以使得增强的墙板芯能够提高相对于相同密度的非增强墙板的拔甲力和抗弯强度。 例如,加强墙板芯可用于减薄纸墙板和/或用于轻质墙板。

    Polyoxymethylene Fibers in Concrete
    36.
    发明申请
    Polyoxymethylene Fibers in Concrete 有权
    混凝土中的聚甲醛纤维

    公开(公告)号:US20140302319A1

    公开(公告)日:2014-10-09

    申请号:US14309402

    申请日:2014-06-19

    申请人: Ticona LLC

    IPC分类号: D01F6/66 D01F6/70

    摘要: Disclosed are polymeric additives for concrete formed of a polyoxymethylene (POM) copolymer, POM copolymers can be utilized to form fibrous additives for concrete, i.e., microfibers and/or macrofibers. The POM copolymers can include one or more chemical groups, e.g., end groups and/or pendant groups that can increase the polarity of the POM and increase the hydrophilicity of the formed fibers, which can improve miscibility of the fibers in wet concrete. Chemical groups of the POM copolymers can bond with components of the concrete or can hydrolyze to form groups that can bond with components of the concrete, e.g., form covalent or noncovalent (e.g., electrostatic or ionic) bonds with one or more components of the concrete binder.

    摘要翻译: 公开了由聚甲醛(POM)共聚物形成的混凝土的聚合物添加剂,POM共聚物可用于形成混凝土的纤维添加剂,即微纤维和/或大纤维。 POM共聚物可以包括一个或多个化学基团,例如端基和/或侧基,其可以增加POM的极性并增加所形成的纤维的亲水性,这可改善纤维在湿混凝土中的混溶性。 POM共聚物的化学基团可以与混凝土的组分结合,或者可以水解形成可以与混凝土组分结合的基团,例如与混凝土的一种或多种组分形成共价或非共价键(例如静电或离子)键 粘合剂