POLYMER-BITUMEN COMPOSITION FOR ROOF MASTIC, NON-ROLL COATINGS AND METHOD OF PREPARING SAID COMPOSITION Russian patent published in 2010 - IPC C08L95/00 C09D195/00 

FIELD: chemistry.

SUBSTANCE: invention relates to technology of making construction materials and is used in making polymer-bitumen waterproofing mastic and non-roll roof coatings. The invention also relates to a polymer-bitumen composition for roof mastic and non-roll coatings, which contains bitumen, thermoplastic elastomer, hydrocarbon oil and mineral filler. The thermoplastic elastomer is butadiene styrene thermoplastic elastomer and the said composition additionally contains a liquid pyrolysis product (s-9 fraction) in the following ratio in wt %: bitumen - 20-40; thermoplastic elastomer - 5-45; hydrocarbon oil - 8-15; mineral filler - 8-20; liquid pyrolysis product (s-9 fraction) up to 100%. The invention also pertains to a method of preparing the said polymer-bitumen composition.

EFFECT: reduced cost of mastic, which improves economical characteristics, obtaining a homogeneous mixture and increased flaking- and decomposition resistance of the mastic.

9 cl, 1 ex