Continuous polymer and fabric composite

Details Continuous polymer and fabric composite Continuous polymer and fabric composite

1998-04-16

2000-03-07

Watkins, III, William P.

Stock material or miscellaneous articles

Structurally defined web or sheet

Including aperture

428137, 428516, 428520, 428131, 404 83, 442398, 442396, 442394, B32B 324

Patent

active

060337575

ABSTRACT:
The present invention is a wet cure concrete cover which is designed and configured to retain moisture during the process of curing concrete. The blanket is a multi-layered structure having a base layer, for contacting the cement, and a film layer is extrusion coated to the base layer for protecting the base layer. The base layer is a non-woven, hydrophobic material that will allow the water to adhere to its fibers. In one embodiment a film layer, preferably polypropylene, is extruded onto the base layer. In a second embodiment a low-density polymerize resin is secured to the base layer via a tie layer. Alternatively, under conditions of high temperature and lower humidity, the film layer of the first and second embodiments can include a plurality of perforations, allowing for periodic water spraying or rewetting of the curing cover.

REFERENCES:
patent: 4485137 (1984-11-01), White
patent: 4898761 (1990-02-01), Dunawaq et al.
patent: 5507900 (1996-04-01), Mohammed et al.
patent: 5843554 (1998-12-01), Katz

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