ROLLED ROOFING MATERIAL AND METHOD FOR ITS PRODUCTION

• Main Authors: SIROTININ VALERIJ NIKOLAEVICH, CHERNOV OLEG NIKOLAEVICH, DUDCHENKO ALEKSANDR VLADIMIROVICH, KOTOVA NADEZHDA IVANOVNA
• Format: Patent
• Language: English; Russian
• Published: 27.12.2007
• Subjects: AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G; BUILDING; CHEMISTRY; COMPOSITIONS BASED THEREON; FIXED CONSTRUCTIONS; GENERAL PROCESSES OF COMPOUNDING; GUTTERS; LAYERED PRODUCTS; LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; PERFORMING OPERATIONS; ROOF COVERINGS; ROOF-WORKING TOOLS; SKY-LIGHTS; THEIR PREPARATION OR CHEMICAL WORKING-UP; TRANSPORTING; WORKING-UP

FIELD: construction, particularly roofing material production and usage for different building structure roof erection. ^ SUBSTANCE: rolled roofing material comprises laminated protective layer and substrate layer made of rubber-polymeric mixtures having the same compositions and intermediate layer of non-woven polyester mesh. Rubber-polymeric mixture includes powder rubber having particle dimensions of up to 0.8 mm taken in amount of 30-50% by weight, low-density polyethylene in amount of 27-60% by weight, EVA in amount of 7-20% by weight and microwollastonite in amount of 5-14% by weight. Material production method involves simultaneously mixing rubber-polymeric mixture components in two extruders; forming rolled substrate layer blank and protective layer blank on two calendars at the same time, wherein extruders and calendars are built in the same production line; bringing the layers one to another for following layer lamination; arranging intermediate non-woven polyester mesh between substrate and protective layers. ^ EFFECT: increased resistance to temperature fluctuations and piercing. ^ 3 cl, 2 tbl, 3 ex, 1 dwg