FIELD: oil and gas production. ^ SUBSTANCE: according to procedure for control over reservoir permeability back-filling composition and chemical initiator of structuring pumped after it and corresponding to 20-35 wt % water solution of calcium chloride are pumped by several alternating portions by 2-10 m3 depending on reservoir capacity. Portions are divided with water spacer of volume excluding portions mixing during pumping. Also, sodium liquid glass mixed with water solution of bio-polymer is...

Disclosed is an antifouling coating composition for forming an antifouling coating that has a stable level of coating fatigue on ships, underwater structures, and the like, and which has excellent antifouling properties over the long term. The antifouling coating composition comprises a hydrolyzable copolymer (A) and an antifouling agent (B). The aforementioned hydrolyzable copolymer (A) is a metal salt bond-containing copolymer, etc., that has a component unit derived from a monomer (a21) repre...

PURPOSE: A method for preparing a polymer one-component water-soluble urethane waterproof agent is provided to enable the construction in the place where moisture is present and to ensure excellent tensile strength, elongation ratio and tear strength. CONSTITUTION: A method for preparing a polymer one-component water-soluble urethane waterproof agent comprises: (i) emulsifying diisocyanate, polyol, poly pre polymerglycol, piperidium or pentamethylene dithiocarbamates, acid chloride, tetramethylt...

PURPOSE: An environment-friendly flame-retardant antifouling paint composition is provided to prevent the fire diffusion, poisonous gas, mold, and bacteria and to adsorb heavy metals. CONSTITUTION: An environment-friendly flame-retardant antifouling paint composition comprises at least one of triarylphosphate or triethylphosphate, synthetic resin, creosote, aluminum hydroxide and walnut powder. The creosote includes 40-60 weight% of needle-leaf tree creosot, 10-30 weight% of broad-leaved tree cr...

PURPOSE: A bridge waterproof material is provided to completely adhere with the lower an underlayer while cured in a short period, to form a coating layer imparting excellent durability and water resistance, and to prevent the deterioration and corrosion of concrete and steel upper plate. CONSTITUTION: A bridge waterproof material comprises 40~50 weight% of MMA resins, 10~20 weight% of calcium carbonate, 1~5 weight% of nanosilica, 2~5 weight% of inorganic pigments, 10~20 weight% of silica with t...

PROBLEM TO BE SOLVED: To provide an inexpensive and environmentally-friendly soil improving method.

PURPOSE: A paint composition is provided to enable the application to a laminate floor, plywood floor, and wood floor, to block the toxicity generated from cement, to prevent the noise and vibration generated between the up and down stairs of an apartment, and to improve the thermal ability of the building floor. CONSTITUTION: A paint composition for reducing inter-layer noise including porous alumina comprises 0.1~20 weight% of a ground mixture, 20~30 weight% of an aqueous ethylene vinyl acetat...

PURPOSE: A paint composition is provided to enable the application to a laminate floor, plywood floor, and wood floor, to block the toxicity generated from cement, and to prevent the noise and vibration generated between the up and down layers of an apartment. CONSTITUTION: A paint composition for reducing inter-layer noise comprises 0.1~20 weight% of a ground compound, 20~30 weight% of an aqueous ethylene vinyl acetate resin, 20~30 weight% of ion exchanged water, 25~40 weight% of calcium carbon...