发明授权
- 专利标题: Adhesive-backed chalkboard wall covering
- 专利标题(中): 胶粘背景黑板墙面
-
申请号: US13490030申请日: 2012-06-06
-
公开(公告)号: US08454371B2公开(公告)日: 2013-06-04
- 发明人: Allison Krongard , John A. Boris
- 申请人: Allison Krongard , John A. Boris
- 申请人地址: US NY East Hampton
- 专利权人: WallCandy LLC
- 当前专利权人: WallCandy LLC
- 当前专利权人地址: US NY East Hampton
- 代理机构: Cozen O'Connor
- 主分类号: B43L1/00
- IPC分类号: B43L1/00
摘要:
An improved chalkboard marking surface comprises a rollable, flexible sheet of polypropylene having two sides that are opposite one another, each having a generally flat surface. On one side, a layer of adhesive is applied to the polypropylene substrate. On the same side of the polypropylene substrate, a selectively removable release sheet is preferably applied to the layer of adhesive for the purpose of keeping foreign materials from attaching to the adhesive when the chalkboard surface is not in use. On the reverse side of the polypropylene substrate, a layer of ink is applied which forms an abrasive surface after it dries, and importantly, results in a chalkboard surface that is lighter in weight.
公开/授权文献
- US20120244513A1 ADHESIVE-BACKED CHALKBOARD WALL COVERING 公开/授权日:2012-09-27
信息查询