The present invention relates to the low cost high performing corrosion inhibitor composition and process for preparation thereof. The corrosion inhibitor comprises of an ester of cashew nut shell liquid (CNSL), a dimer fatty acid (DFA), a long chain amine and a solvent. The corrosion inhibitor composition prevents corrosion of internal metal surface of pipelines due to petroleum products.

Disclosed are multifunctional compounds represented by structural formula (I):

##STR00001##

methods of producing compounds represented by structural formula (I) and their use in inhibiting corrosion in corrodible material.

A corrosion inhibitor composition and a method of inhibiting corrosion on a surface are disclosed. The corrosion inhibitor composition includes at least one nitrogen containing heteroaromatic compound and at least one haloalkynyl carbamate compound. The corrosion inhibitor composition may be utilized with acidizing treatments for wells, in particular for the production of oil, gas, and/or water.

Methods of employing corrosion inhibitors with oxidizing and/or non-oxidizing biocides, such as peroxycarboxylic acids, to provide corrosion protected compositions are disclosed. Various corrosion inhibitors further provide biocidal efficacy in addition to the corrosion protection providing further benefits for application of use. Methods of employing corrosion protected biocide compositions, such as peroxycarboxylic acid compositions, for corrosion protection are particularly well suited for treating fluids intended to flow through pipes, namely in the energy industry, water and paper industries, etc. Methods providing suitable corrosion protection in comparison to untreated systems and corrosion protected systems using conventional corrosion inhibitors, such as quaternary amines and imidazolines commonly used in the industry, are disclosed.

The present invention relates to novel corrosion inhibitor compositions for magnesium or magnesium alloys and to a process for inhibiting the corrosion of such metals using such compositions. The corrosion inhibitor composition for magnesium or magnesium alloys comprises at least one corrosion inhibiting compound which is capable of forming a complex with at least one of Fe(II), Fe(III), Cu(I), Cu(II) and Ni(II) ions, where the complex with at least one of Fe(II), Fe(III), Cu(I), Cu(II) and Ni(II) ions has a stability constant in aqueous solution at room temperature (about 21 C.) log K of greater than or equal to 3.5 wherein the corrosion inhibiting compound is selected from the group of pyridinedicarboxylic acids, and their salts or esters thereof.

A corrosion-inhibiting composition includes a diluent and a mixture of organic salts of half ester-half acids of a dioic acid with of a glyceride group with a fatty acyl residue. Included are organic salts of glyceride-cyclic carboxylic acid anhydride adducts.

Methods of employing corrosion inhibitors with oxidizing and/or non-oxidizing biocides, such as peroxycarboxylic acids, to provide corrosion protected compositions are disclosed. Various corrosion inhibitors further provide biocidal efficacy in addition to the corrosion protection providing further benefits for application of use. Methods of employing corrosion protected biocide compositions, such as peroxycarboxylic acid compositions, for corrosion protection are particularly well suited for treating fluids intended to flow through pipes, namely in the energy industry, water and paper industries, etc. Methods providing suitable corrosion protection in comparison to untreated systems and corrosion protected systems using conventional corrosion inhibitors, such as quaternary amines and imidazolines commonly used in the industry, are disclosed.

Disclosed are multifunctional compounds represented by structural formula (I): ##STR00001##
methods of producing compounds represented by structural formula (I) and their use in inhibiting corrosion in corrodible material.

Implementations set forth herein relate to systems, methods, and products for preserving a blade(s) of a device, and/or other features of other apparatuses. A blade-preserving product set forth herein can be applied to surfaces of a blade of a personal hygiene product, such as an electric or non-electric razor. The blade-preserving product can include one or more disinfectants that can operate to dissociate organic matter from a surface of the blade. Additionally, the blade-preserving product can include one or more anti-oxidants, such as a carbon nano material, that can reduce a rate of oxidation occurring at the blade, and also mitigate growth of organic matter on the blade. The blade-preserving product can be included in a container with a spray nozzle, thereby allowing the blade-preserving product to be readily dispensed onto a blade before and/or after a user employs the blade.

PURPOSE: To obtain the subject polymer, comprising a specific structural unit, having excellent antimicrobial, anthelmintic, antioxidizing and deodorizing actions and useful as a food, a coating, a fiber, etc. CONSTITUTION: This acrylamidomethylpolyphenol polymer comprises (A) 10-100 mol % structural unit of formula I [R<1> is H or CH3; R<2> is a group of formula II (R<3> is H or OH; R<4> is H or 3,4,5-trihydroxybenzoyl; one of a1 to a4 is a single bond and other three are H) or a group of a benzene skeleton, a naphthalene skeleton or an anthracene skeleton all having >=2 OH groups] and (B) 0-90 mol % structural unit of formula III (R<5> is R<1>; R<6> is H or an alkyl) or a structural unit of the formula [CH2-C(R<7>R<8>)][R<7> is R<1>; R<8> is H, Cl, CN, etc.]. Furthermore, the method for producing the polymer is to carry out the condensing reaction of, e.g. an acrylamide copolymer comprising the structural unit of formula III and the structural unit of the formula [CH2-C(R<7>R<8>)] with the corresponding polyphenol such as a compound of formula IV in the presence of an acidic catalyst in a reaction medium.