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US 2011/0217528 A1Published application
Waterproofing Membrane
AssigneeW.R. Grace & Co.-Conn.
InventorsRobert A. Wiercinski, Anandakumar Ranganathan
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AssigneeW.R. Grace & Co.-Conn.
InventorsRobert A. Wiercinski, Anandakumar Ranganathan
Estimating the term…
Disclosed are waterproofing membranes comprising the following laminated layers: layer A comprising a water-proofing adhesive; layer B comprising a carrier sheet; layer C comprising a releasable bonding material; and layer D comprising a protective coating; wherein (i) the laminated layers are arranged in the sequential order A-B-C-D; or (ii) the laminated layers are arranged in the sequential order B-C-D-A; or (iii) the laminated layers are arranged in the sequential order C-D-A-B. The membrane does not include a removable release sheet that is typically used to prevent the adhesive from adhering to the carrier sheet or other portion of the membrane when the membrane is rolled up. Also disclosed is a method of making the aforementioned membrane. Preferably, layer C will comprise a water soluble polymer, an alkali soluble polymer, or a homopolymer or copolymer of polyvinyl acetate.
A waterproofing membrane comprising the following laminated layers:
A method of making a waterproofing membrane comprising a waterproofing adhesive (layer A), a carrier sheet (layer B), a releasable bonding material (layer C) and a protective coating (layer D), wherein the membrane does not include a removable release sheet, the method comprising the following steps:
Dependencies are inferred from the claim text.