METHOD OF ROLL ROOFING AND WATER-PROOFING MATERIAL PRODUCTION Russian patent published in 2004 - IPC

FIELD: building materials, particularly roofing materials for creating waterproof membrane in all kinds of buildings and structures.

SUBSTANCE: method involves preparing mixture including bitumen, polymeric additive and filler for polymer-bitumen bonding layer obtaining; impregnating and covering base of glass fiber or polyester web with above mixture from both sides thereof; covering impregnated base with girt or with film. For polymer-bitumen mixture production predetermined quantity of thermoplastic elastomer is supplied after filling 3/4 of mixer volume with bitumen. Mixing is carried out at 180 - 250^oC temperature with mixer speed of 150 rpm. Dosed filler is added to ready mixture including bitumen and thermoplastic elastomer. Base is covered and impregnated in impregnating bath at 150 - 160^oC temperature with following cooling thereof. Polymer-bitumen bonding layer includes thermoplastic elastomer in amount of 5-8 mas.%, filler - 35-40 mas.%, remainder - bitumen.

EFFECT: increased economy and manufacturability due to simplification of bonding layer composition.

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