Invention Grant
- Patent Title: Vapor permeable liquid-applied membrane
- Patent Title (中): 透气液体膜
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Application No.: US11314325Application Date: 2005-12-21
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Publication No.: US08524822B2Publication Date: 2013-09-03
- Inventor: Robert A. Wiercinski
- Applicant: Robert A. Wiercinski
- Applicant Address: US MD Columbia
- Assignee: W. R. Grace & Co.—Conn.
- Current Assignee: W. R. Grace & Co.—Conn.
- Current Assignee Address: US MD Columbia
- Agent Stephan P. Williams; Craig K. Leon
- Main IPC: C08K3/26
- IPC: C08K3/26
Abstract:
Exemplary membranes, liquid compositions, and methods of the invention involve the use of a hydrophobic acrylic polymer and at least one water-soluble polymer (e.g., PVOH) for providing a water vapor permeable air barrier on construction surfaces. Unlike prior art vapor barriers, the present invention provides membranes having good crack-bridging and non-water-absorption characteristics.
Public/Granted literature
- US20060155031A1 Vapor permeable liquid-applied membrane Public/Granted day:2006-07-13
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