Water activatable tapes

Details Water activatable tapes Water activatable tapes

1976-12-06

1977-12-06

Van Balen, William J.

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Adhesive outermost layer

260 296S, 260 297S, 260 4213, 428262, 428289, 428308, 428310, 428446, C09J 702

Patent

active

040618250

ABSTRACT:
Water-activatible tapes are disclosed comprising a substrate of fibrous or foamed plastics material impregnated or coated with a water-reactive cementitious composition which is reactive with water to form a set mass, the composition containing at least one cement, especially Portland cement, a non-water sensitive polymeric binder, such as a natural or synthetic rubber, and a water-sensitive additive which is compatible with the polymeric binder and is sufficiently water-sensitive to at least swell in contact with water. The tapes are suitable for construction purposes, e.g. sealing joints in buildings or pipe-wrapping, by wetting with water to form a pliable mass which can be deformed to the desired shape and which will subsequently harden.

REFERENCES:
patent: 984121 (1911-02-01), Condie
patent: 2434465 (1948-01-01), Marc
patent: 2662064 (1953-12-01), Mead
patent: 3042643 (1962-07-01), Foster
patent: 3301799 (1967-01-01), Rothberg et al.
patent: 3451842 (1969-06-01), Kurz et al.

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