CHEMICAL COMPOSITION FOR ANTI-CORROSION MINERAL PAPER

Abstract

The present invention relates to the chemical composition of an anti-corrosion mineral paper which consists mineral powders, anti-static agents, UV inhibitors, synergistic corrosion inhibitors and synthenic polymers binder.

Claims

1) A chemical composition for anti-corrosion mineral paper which comprises 55-90 weight % of pulverized inorganic mineral powders, 1-10 wt % of anti-static agent, 1-10 w % of UV agent, 1-20 wt % of mixture of synergistic corrosion inhibitors, 10-40 wt % of specialty binder.

2) A chemical composition for anti-corrosion mineral paper as in claim 1 wherein the inorganic mineral powder consists of calcium carbonate, calcium sulfate, calcium silicate, kaolin, barium sulfate, silica, betnonite, mica powder, zinc oxide, chalk powder, silica powder, talcum powder and dolomite powder as fillet for Mineral Anti-Corrosion Paper.

3) A chemical composition for anti-corrosion mineral paper as in claim 1 wherein the anti-static agent is aromatic sulfonamide, the aromatic sulfonamides may be ortho, meta, or para substituted on the aromatic part thereof, or may be N-substituted on the amide group thereof.

4) A chemical composition for anti-corrosion mineral paper as in claim 3 wherein the anti-static agent aromatic sulfonamide such as benzenesulfonamide, N-butyl benzenesulfonamide, o-toluenesulfonamide, p-toluenesulfonamide, N-ethyl-o-toluene sulfonamide, N-ethyl-p-toluenesulfonamide, or mixtures thereof are used as an anti-static agent in the said invention.

5) A chemical composition for anti-corrosion mineral paper as in claim 1 wherein the UV agent consists of Titanium Dioxide, Zinc Oxide, or Silicone Dioxide.

6) A chemical composition for anti-corrosion mineral paper as in claim 1 wherein synergistic corrosion inhibitors consist of Anodic, Cathodic, Adsorption, Volatile Corrosion Inhibitors, azole compounds and phosphates are used to enhance the corrosion inhibition of the mineral paper.

7) A chemical composition for anti-corrosion mineral paper as in claim 6 wherein synergistic Anodic corrosion inhibitors consist of Sodium silicate, Sodium Meta silicate, Potassium Silicate, Sodium Hepta Silicate and Hexaflurosilicates, Molybdates, Orthophosphates, and Nitrites corrosion inhibitors are used as synergistic corrosion inhibitors to enhance the corrosion inhibition properties of the mineral paper.

8) A chemical composition for anti-corrosion mineral paper as in claim 6 wherein synergistic Cathodic corrosion inhibitors consist of zinc salts, calcium salts and magnesium salts.

9) A chemical composition for anti-corrosion mineral paper as in claim 6 wherein synergistic adsorption inhibitors consist of Amines (R-NH.sub.2); Carboxyls (R-COOH); Thiourea (NH.sub.2CSNH.sub.2); Phosphonates (R-PO.sub.3H.sub.2); Sodium Benzoate (C.sub.7H.sub.5NaO.sub.2).

10) A chemical composition for anti-corrosion mineral paper as in claim 6 wherein Synergistic Volatile Corrosion Inhibitors consist of Cyclohexylamine; Dicyclohexylamine; Dicyclohexylammonium nitrite, cyclohexylammonium carbonate, Benzoates Guanidine; Aminoalcohols and Nitrites.

11) A chemical composition for anti-corrosion mineral paper as in claim 6 wherein Synergistic Corrosion Inhibitors consist of Benzotriazole, (1,2,4-triazole, 1H-benzotriazole, benzothiazole, benzimidazole, benzoxazole, 2,2-biquinoline, nitrone, 2,5-dimercapto-1,3,4-thiadiazole, and 2,9-dimethylphenanthroline, 1H-benzotriazole, 5-methylbenzotriazole, 5-carboxybenzotriazole, 2-alkylbenzothiazole, 2-mercaptobenzothiazole, 2-mercaptobenzothiazolesuccinic acid, be 2-alkylbenzimidazole, 2-(5-aminopentyl) benzoxazole, and 2-mercaptobenzoxazole, 1-phenyl-5-mercapto-1,2,3,4-tetrazole (PMT), Tolytriazole, Thiazole and derivatives 5-benzylidene-2,4- dioxotetrahydro-1,3-thiazole (BDT); 5-(4-isopropylbenzylidene)-2,4-dioxotetrahydro-1,3-thiazole (IPBDT); 5-(3-thenylidene)-2,4-dioxotetrahydro-1,3-thiazole (TDT) and 5-(3,4- dimetoxybenzylidene)-2,4-dioxotetrahydro-1,3-thiazole (MBDT) as copper corrosion inhibitors.

12) A chemical composition for anti-corrosion mineral paper as in claim 6 wherein Synergistic Corrosion Inhibitors consist of Polyphosphate , Orthophophosphate, Tripolyphosphate and its derivatives, Zinc Orthophosphate, Zinc Phosphate, Zinc Polyphosphate, Zinc Tripolyphosphate, Zinc Hexametaphosphate, Sodium Hexametaphosphate, Sodium Tripolyphosphate, Sodium Phosphate, Sodium Tetraphosphate, Tetrasodium Phosphate, Sodium Septaphosphate.

13) A chemical composition for anti-corrosion mineral paper as in claim 1 wherein the special binders such as Polyvinyl Alcohol (PVA), Modified-starch, Synthetic polymers or dispersion form Cellulose-derived, water-soluble polymer powder, Calcium aluminate, Monomers of acrylonitrile, Silicous day material, Natural asphalt mineral, Microcrystalline cellulose powder, Calcium silicate composite powder, Polypropylene and Polyethylene powders are used to enhance the tensile strength, adhesive properties and flexibility of the mineral paper.

Description

EXAMPLES

[0041] The following are the illustrative of various embodiments of the foregoing invention.

Example 1

[0042] This example illustrates the chemical composition of the anti-corrosion mineral paper which typically consists of 80 wt % of 250 to 300 mesh of pulverized calcium carbonate, 3 wt % of N-butyl benzenesulfonamide, 2 wt % of Titanium Dioxide, 2 wt % of Sodium Silicate, 2wt % of Calcium salt, 2 wt % of Dicyclohexylamine, 1 wt % of Benzotriazole, 1 wt % of Sodium Polyphosphate, 3 wt % of Polyvinyl Alcohol, 2 wt % of Polyethylene powder, and 2 wt % of Polypropylene powder.

Example 2

[0043] This example illustrates the chemical composition of the anti-corrosion mineral paper which typically consists of 60 wt % of 250 to 300 mesh of pulverized calcium carbonate, 5 wt % of talcum powder, 5 wt % calcium silicate, 5 wt % of silica powder, 5 wt % of zinc oxide, 3 wt % of N-butyl benzenesulfonamide, 2 wt % of Titanium Dioxide, 2 wt % of Sodium Silicate, 2 wt % of Calcium Salt, 2 wt % of Dicyclohexylamine, 1 wt % of Benzotriazole, 1 wt % of Sodium Polyphosphate, 3 wt % of Polyvinyl Alcohol, 2 wt % of Polyethylene powder, and 2 wt % of Polypropylene powder.

Example 3

[0044] This example illustrates the chemical composition of the anti-corrosion mineral paper which typically consists of 70 wt % of 250 to 300 mesh of pulverized calcium carbonate, 10 wt % of Barium Sulfate, 10 wt % of Calcium Silicate, 10 wt % of Silica Powder, 3 wt % of N-butyl benzenesulfonamide, 2 wt % of Titanium Dioxide, 2 wt % of Sodium Silicate, 2 wt % of Dicyclohexylamine, 1 wt of Benzotriazole, 1 wt % of Sodium Polyphosphate, 5 wt % of Polyvinyl Alcohol, 2 wt % of Polyethylene powder, and 2 wt % of Polypropylene powder.

Example 4

[0045] This example illustrates the chemical composition of the anti-corrosion mineral paper which typically consists of 82 wt % of 250 to 300 mesh of pulverized calcium carbonate, 2 wt % of N-butyl benzenesulfonamide, 2 wt % of Titanium Dioxide, 1 wt % of Sodium Silicate, 2 wt % of Calcium salt, 2 wt % of Dicyclohexylamine, 1 wt % of Benzotriazole, 1 wt % of Sodium Polyphosphate, 3 wt % of Polyvinyl Alcohol, 2 wt % of Polyethylene powder, and 2 wt % of Polypropylene powder.

Example 5

[0046] This example illustrates the chemical composition of the anti-corrosion mineral paper which typically consists of 55 wt % of 250 to 300 mesh of pulverized calcium carbonate, 4 wt % of N-butyl benzenesulfonamide, 5 wt % of Titanium Dioxide, 10 wt % of Sodium Silicate, 2 wt % of Calcium salt, 2 wt % of Dicyclohexylamine, 2 wt % of Benzotriazole, 5 wt % of Sodium Polyphosphate, 8 wt % of Polyvinyl Alcohol, 5 wt % of Polyethylene powder, and 2 wt % of Polypropylene powder.