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INVENTION
Patent of the Russian Federation RU2285024
BITUMEN-RUBBER MASTICS
The name of the inventor: Ganieva Tamilla Fathievna (RU); Kemalov Alim Feizrakhmanovich (RU); Fakhrutdinov Revo Ziganshinovich (RU); Kemalov Ruslan Alimovich (RU); Lyapin Alexander Yurievich (RU); Borisov Sergey Vladimirovich (RU); Magdeeva Samira Rashidovna (RU)
The name of the patent holder: NPC "Inventa" (RU)
Address for correspondence: 420140, Kazan, ul. Chishmyale, 13, ap. 86, A.F. Kemalov
Date of commencement of the patent: 2005.08.08
The invention relates to building materials and can be used as roofing materials, for protection of metal, concrete and other bases, and for sealing joints in road construction. Essence: mastic contains mass%: bitumen petroleum 59,0-80,5; Bromobutyl rubber or butadiene rubber, or butyl rubber, or low molecular weight polyethylene 6.0-15.0; Rapeseed oil or fraction 
Α-olefins C 20 -C 26 , or production waste of trimers and tetramers of propylene 8.0-15.0; Sulfur 0.5-1.0; Dolomite powder or pellet powder of ore mining and processing plants 5,0-10,0. The technical result: improvement of the quality characteristics of the mastic.
DESCRIPTION OF THE INVENTION
The invention relates to building materials and can be used as roofing materials, for protection of metal, concrete and other bases, and for sealing joints in road construction.
A composition is known (author of the USSR, No. 834049, class C 08 L 95/00, published in 1981), which includes bitumen, butyl rubber, plasticizer and filler. The disadvantage of the composition is that the combination of low strength and too great elongation leads to tearing off the composition from the seams of the road surfaces. In addition, the composition is characterized by insufficient frost resistance.
The closest to the present invention is bitumen-rubber mastic (Auths USSR, No. 1715757, class C 04 B 26/26, C 08 L 95/00, published in 1992, prototype ) including bitumen, butadiene methyl styrene rubber, rosin, Filler - lime-pushers, solvent - toluene and polyvinyl-n-butyl ether, sulfur and tiuram with the following ratio of components, mass%:
The known mastic composition has comparatively low values of water resistance, heat resistance and adhesion to the concrete surface.
The object of the invention is to provide a bitumen-rubber mastic having higher values of heat resistance, water resistance and adhesion to the concrete surface.
This object is achieved by the creation of a bitumen-rubber mastic comprising oil bitumen, rubber, filler, solvent and sulfur, characterized in that it contains as a filler a dolomite powder or pellet powder of mining and processing plants, as a solvent and optionally a plasticizer, rapeseed oil or a fraction Olefins C 20 -C 26 , or the waste production of trimers and tetramers of propylene, which is a mixture of isomers of propylene C 15 oligomers, as rubber, bromobutyl rubber or butadiene rubber or butyl rubber or low molecular weight polyethylene with the following component ratio, by weight:
As bitumen of oil used bitumen insulation according to GOST 9812-74, or construction according to GOST 6617-76, or roofing according to GOST 9548-74.
Fraction Α-olefins C 20 -C 26 by-product in the production of C 8 -C 10 alpha-olefins, C 10 -C 12 , C 12 -C 18 by thermocatalytic oligomerization of ethylene, corresponds to TU 2411-068-05766801-97: flash point - 171 ° C, autoignition - 250 ° C.
Rape oil in accordance with GOST 8988-77 is produced by pressing and extraction of rape seeds.
Waste production of trimers and tetramers of propylene - the product of OJSC "Nizhnekamskneftekhim" is a mixture of isomers of oligomers of propylene C 15 .
Bromobutyl rubber according to TU 2294-096-05766801-2000 is a product of OAO Nizhnekamskneftekhim.
Butyl rubber is used as butyl rubber brand BK-2045T or grade BK-1530 in accordance with GOST 2199-78.
Butadiene rubber brand SKB obtained anionic polymerization of butadiene, initiated by metallic sodium. This rubber (the product of the Kazan Synthetic Rubber Plant) has an irregular structure. The content of 1,4-links averages 34%, 1,2-links - 66%. Molecular weight reaches 200 thousand a. The glass transition temperature is - (50 ° C).
Low-molecular-weight polyethylene (a by-product separated during the separation of recycled ethylene at high pressure of 20-60 MPa) is a waxy, translucent, hydrophobic substance of white color, which has high adhesion to various materials. The product consists of a mixture of saturated hydrocarbons, predominantly of normal structure (melting point 90 ° C, dropping point 80 ° C, flash point in open crucible 263 ° C, molecular weight 1500, boiling temperature 330 ° C.
As sulfur, elemental commodity sulfur is used in accordance with GOST 126-76.
The used pellet powder is a by-product in the technological process for the production of reduced hot briquetted iron (the product of the Lebedinsky Mining and Processing Plant, Belgorod Region, Gubkin). The granulometric composition of the pellets is as follows: the residue on a 0.14 mm sieve is no more than 2% by weight. Pellet composition, wt.%: FeO-1.53; Fe 3 O 4 (FeO F 2 O 3 ) - 4.90; F 2 O 3 90.53; SiO2: 3.30; CaO = 0.11; S is 0.007; P is 0.006. The remaining 1,117% are (in decreasing order): Al 2 O 3 , MgO, K 2 O, Na 2 O, T i O 2 .
Dolomite powder and powder pellets of ore-dressing plants have the following grain composition, mass%:
The sequence of preparation of mastics is as follows: one of the above mentioned rubbers in the calculated amount was introduced into one of the listed solvents, left for a day for swelling, then stirred at 90-100 ° C until complete homogeneity. The resulting solution in the calculated amount was introduced into the bitumen heated to 80 ° C, mixing until homogeneous, then sulfur was added thereto with stirring at the same temperature and in the final stage a calculated amount of dolomite powder or pellets was added and mixed at 90 ° C until complete homogeneity. Compositions and properties of the prepared mastic samples are given in Tables 1 and 2, respectively.
CLAIM
Bitumen-rubber mastic for waterproofing and sealing, including bitumen oil, rubber, filler, solvent and sulfur, characterized in that it contains as a filler dolomite powder or powder pellets of ore-dressing plants, as a solvent and optionally plasticizer, rapeseed oil or fraction Olefins C 20 -C 26 , or the waste production of trimers and tetramers of propylene, which is a mixture of isomers of oligomers of propylene C 15 , as rubber bromobutyl rubber or butadiene rubber or butyl rubber or low molecular weight polyethylene with the following ratio of the components, by weight:
print version
Date of publication 19.12.2006гг
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