发明授权
- 专利标题: Water resistant cementitious article and method for preparing same
- 专利标题(中): 防水水泥制品及其制备方法
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申请号: US11738316申请日: 2007-04-20
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公开(公告)号: US08070895B2公开(公告)日: 2011-12-06
- 发明人: Dick C. Engbrecht , Qingxia Liu , Michael P. Shake , Xuming Wang , David Paul Miller , Michael L. Bolind , Paul Reed , Donald L. Roelfs , Rafael Bury
- 申请人: Dick C. Engbrecht , Qingxia Liu , Michael P. Shake , Xuming Wang , David Paul Miller , Michael L. Bolind , Paul Reed , Donald L. Roelfs , Rafael Bury
- 申请人地址: US IL Chicago
- 专利权人: United States Gypsum Company
- 当前专利权人: United States Gypsum Company
- 当前专利权人地址: US IL Chicago
- 代理机构: Leydig, Voit & Mayer, Ltd.
- 代理商 Philip T. Petti; David F. Janci
- 主分类号: B29C65/00
- IPC分类号: B29C65/00 ; B32B13/00 ; B32B37/00 ; B32B29/00
摘要:
A fibrous mat-faced cementitious article comprising (a) a cementitious core, and (b) a first fibrous mat comprising polymer or mineral fibers and a hydrophobic finish on at least one surface thereof, wherein the hydrophobic finish is in contact with the cementitious core, and a method of preparing a fibrous mat-faced cementitious article, as well as a method of preparing a water-resistant cementitious article comprising (a) preparing an aqueous siloxane dispersion, wherein the dispersion comprises about 4 wt. % to about 8 wt. % siloxane, (b) combining the siloxane dispersion with a cementitious mixture to provide a cementitious slurry, (c) depositing the cementitious slurry onto a substrate, and (d) allowing the cementitious slurry to harden, thereby providing a cementitious article.