Process for the preparation of a water-impervious surface coatin

Details Process for the preparation of a water-impervious surface coatin Process for the preparation of a water-impervious surface coatin

1984-09-28

1986-07-01

Gallagher, John J.

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

523093, 52746, 156 71, 1563075, 156310, 156 35, 156332, 156337, 524 60, B32B 3100, E04B 200

Patent

active

045978174

ABSTRACT:
A process for the preparation of a water-impervious surface coating on a substrate comprising applying to the substrate a layer of an aqueous bitumen emulsion containing, based on dry matter, 5-55% by weight of an acrylic prepolymer, 1-15% by weight of an air-drying alkyd resin, 40-80% by weight of bitumen, and optionally up to 5% by weight of additives, applying to this layer a glass fibre layer, and subsequently applying to the glass fibre layer at least one layer of water-based paint.
A considerable saving in labor and time is obtained by the process and the coating obtained has an increased water vapor diffusion resistance.

REFERENCES:
patent: 2503246 (1950-04-01), Craig
patent: 2695257 (1954-11-01), Castellani
patent: 3044919 (1962-07-01), Stoneburner

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