(2) China Patent (CN 1064886), a decontamination paste for dirt, sludge and rust spots on the stone surface. It consists of sodium tripolyphosphate, calcite powder sulfuric acid, sodium silicate, sodium hydroxymethyl cellulose, liquid paraffin, liquid caustic soda and ionized water. It is said that it can clean granite monuments, buildings and related products of wind erosion, organic microorganisms and stains.
(3) Granite cleaning agent with American patent (American patent. 4,897,265,438+03) has the molecular formula of mixed solution of F, ethanol or modified ethanol with NF4F tons. It is said that it can clean granite monuments, granite buildings and granite products from wind erosion, organic microorganisms and stains.
(4) Japanese patent (JP 903 1493A), detergents for stone, concrete, brick, etc. Its formula is phosphoric acid, hydrochloric acid, formic acid, diethanol fatty amide, polyoxyalkyl ether, ammonium chloride or ammonium sulfate; It is said that dirt on concrete, stones, mortar and bricks can be cleaned.
(5) Japanese Patent (JP 6322398A), an oil stain remover for hard surfaces such as stone, is prepared from various amphoteric surfactants, fatty acid salts, metal ion flocculants and solvents. According to the author, it can remove oil stains attached to hard surfaces such as stone.
(6) The world patent (WO 9722679A) is suitable for the surface cleaning of high-gloss marble, and its formula contains at least one anionic surfactant, which is mixed into a neutral solution, and divalent cations to form a saturated decontamination mixture. It is said that it has the function of decontamination and light protection.
(7) American patent of marble surface cleaning and polishing agent (American patent. No.5780 1 1) is made of zinc sulfate, abrasive, thickener, penetrant, fluorosilicate, etc. It can react chemically with the marble surface. It is said that it can clean marble to restore luster, improve its durability, wear resistance and anti-cracking and anti-fouling properties.
(8) The formula of the stone floor cleaning agent of patent (JO 3 182-596A) is as follows: anionic surfactant (alkylbenzene sulfonate, etc. ), nonionic surfactant (polyoxyethylene sulfonate, etc. ), hydroxyalkyl cellulose (hydroxymethyl cellulose, etc. ) and general alcohols (isopropanol, alcohol, etc.). ) and adjust the PH value to 9-65438+. It is said that after washing, the detergency is high and the surface gloss is good.
(9) American patents. 4,665,438+03378), a method for cleaning hard surfaces such as marble. Dissolve cellulose, phosphate, etc. First put it into boiling water, then add talcum powder and sucrose and stir it into a paste. During processing, these pastes are directly coated on the surface to be cleaned with a brush, or the surface to be cleaned is covered with a cloth, and then the mixture is sprayed on the surface of the cloth, then covered with a plastic film and cured, and finally washed with water or steam. It is said that this method can remove stubborn dirt.
(10) China patent (CN 107 1452) is a hard surface oil stain cleaner, which consists of surfactant and absorbent mineral powder (diatomite, bentonite, bentonite, bleaching soil, zeolite or expanded perlite powder, etc.). It is said that this method is very effective in cleaning oil stains on hard surfaces.