Abstract The use as corrosion inhibitors of the compounds formed by reacting guanidine-type compounds with polyamines. These compounds are formed by the reaction of guanidine-type compounds, (including compounds which although not guanidine-type compounds are capable of forming guanidine-type compounds). In general, guanidine-type compounds are those which contain the residue and may be illustrated by the following: where at least one of the R''s, which may or may not be the same, is a substituted group, for example alkyl, aryl, cycloalkyl, alkaryl, aralkyl, etc; and derivatives thereof. An example of a compound which is not itself a quanidine type compound but is capable of forming a guanidine type compound is cyanamide NH2CN which reacts with itself to form dicyandiamide.
THE PROCESS OF INHIBITING CORROSION OF METALS COMPRISING TREATING SAID METALS WITH THE POLYMER PRODUCT FORMED BY REACTING (A) A COMPOUND SELECTED FROM THE GROUP CONSISTING OF A CYANAMIDE COMPOUND, A DICYANDIAMIDE COMPOUND, A GUANIDINE COMPOUND AND A BIGUANIDE COMPOUND AND (B) A POLYAMINE.
Claim 2
Dependent Claim
44 words
THE PROCESS OF INHIBITING CORROSION OF METALS COMPRISING TREATING SAID METALS WITH THE POLYMER PRODUCT FORMED BY REACTING (A) A COMPOUND SELECTED FROM THE GROUP CONSISTING OF A CYANAMIDE COMPOUND, A DICYANDIAMIDE COMPOUND, A GUANIDINE COMPOUND AND A BIGUANIDE COMPOUND AND (B) A POLYAMINE.
Claim 3
Dependent Claim
11 words
The process of claim 1 wherein the polyamine is a polyalkylenepolyamine.
Claim 4
Dependent Claim
12 words
The process of claim 2 wherein the polyalkylenepolyamine is of the formula
Claim 5
Dependent Claim
24 words
The process of claim 1 wherein the polymer product has recurring units selected from the group consisting of A. the unit of the formula
Claim 6
Dependent Claim
10 words
The process of claim 4 wherein A is (CH2)2 3.
Claim 7
Dependent Claim
12 words
The process of claim 1 wherein (A) is dicyandiamide and (B) is
Claim 8
Dependent Claim
14 words
The process of claim 1 wherein (A) is a guanidine salt and (B) is
Claim 9
Dependent Claim
13 words
The process of claim 1 wherein (A) is a biguanidine and (B) is
Claim 10
Dependent Claim
12 words
The process of claim 1 wherein the polyamine is a Gilsonite amine.
Claim 11
Dependent Claim
12 words
The process of claim 1 wherein the polyamine is of the formula