Weather-resistant vulcanizable covering

Details Weather-resistant vulcanizable covering Weather-resistant vulcanizable covering

1977-06-20

1979-05-08

Ives, P. C.

Stock material or miscellaneous articles

Sheets or webs edge spliced or joined

428 61, 428 62, 428 58, 428517, 428519, 428520, 428494, 428451, 156305, B32B 300

Patent

active

041537483

ABSTRACT:
A weather-resistant covering is made of three superimposed sheets of vulcanizable material such as ethylene-propylene copolymers, e.g. ethylene-propylene-diene terpolymer. The inner layer contains a vulcanization accelerator and advantageously the outer layers do not. An additional inner layer such as a non-woven textile fabric can be provided to increase strength and dimensional stability. A roof can be covered by placing a plurality of strips of such covering side-by-side with slight overlap, welding them together into impervious seams by application of a volatile solvent or swelling agent for the outer layers.

REFERENCES:
patent: 2713017 (1955-07-01), Bruns
patent: 3292334 (1966-12-01), Craig
patent: 3364100 (1968-01-01), Danielson
patent: 3403072 (1968-09-01), Wheat
patent: 3616130 (1971-10-01), Rogosch
patent: 3660224 (1972-05-01), Cau et al.
patent: 3927233 (1975-12-01), Naidoff

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