Water proofing agent

Stock material or miscellaneous articles – Structurally defined web or sheet – Discontinuous or differential coating – impregnation or bond

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Details

427422, 427443, 428291, 428489, B32B 2700

Patent

active

040768856

ABSTRACT:
A high quality water proofing material of easier applicability than those employed previously comprises a non woven fabric of isostatic polypropylene fibres treated with a mixture of bitumen and sulphur.

REFERENCES:
patent: 3632418 (1972-01-01), Draper
patent: 3721578 (1973-03-01), Bennett et al.
patent: 3810857 (1974-05-01), Garrigues
patent: 3864157 (1975-02-01), Bressin et al.
patent: 3869417 (1975-03-01), Romsay

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