BITUMINOUS SHINGLES AND METHOD OF PRODUCING SHINGLES Russian patent published in 2020 - IPC E04D5/00 

FIELD: construction.

SUBSTANCE: group of inventions is asphalt shingles and method of its production. Bitumen tiles include glass fiber, bitumen mixture impregnating it, basalt granulate applied on the outside and an adhesive. Bitumen mixture has the following composition: distilled bitumen from 30 to 50 %, APAO (amorphous poly-alpha-olefin) from 5 to 15 %, calcium carbonate from 40 to 60 %. When implementing the method of producing shingles, first, in a first mixer, a mixture is made by mixing distilled bitumen and APAO polymer, then the mixture is moved into the second mixer, calcium carbonate is added, mixed until homogenization, then the mixture is moved into an impregnation bath in which the obtained glass fibers are impregnated with the obtained mixture, then, roller is used to apply basalt granulate and sand, perform cooling phase, then perform mechanical pressing, cool down, apply adhesive, then cut and package.

EFFECT: group of inventions provides optimum parameters of cold flexibility, heat resistance, durability.

4 cl, 1 dwg, 10 tbl