US3850823A — Method for producing corrosion inhibiting composi…

Claim 1

Independent Claim 46 words

A METHOD FOR PRODUCING A CORROSION INHIBITOR CONCENTRATE COMPRISING LUBRICATING OIL, AT LEAST ONE CLOUDY TYPE OVERBASED ALKALI OR ALKALINE EARTH METAL DISPERSANT COMPRISING AT LEAST ONE CARBOXYLATE AND AT LEAST ONE OIL-INSOLUBLE CARBONATE, AND A CORROSION INHIBITING AMOUNT OF A WATER SOLUBLE SALT WHICH COMPRISES:

Claim 2

Independent Claim 46 words

A METHOD FOR PRODUCING A CORROSION INHIBITOR CONCENTRATE COMPRISING LUBRICATING OIL, AT LEAST ONE CLOUDY TYPE OVERBASED ALKALI OR ALKALINE EARTH METAL DISPERSANT COMPRISING AT LEAST ONE CARBOXYLATE AND AT LEAST ONE OIL-INSOLUBLE CARBONATE, AND A CORROSION INHIBITING AMOUNT OF A WATER SOLUBLE SALT WHICH COMPRISES:

Claim 3

Dependent Claim 81 words

CONTACTING A MIXTURE COMPRISING SAID LUBRICATING OIL, SAID CARBOXYLATE AND AT LEAST ONE HYDROXIDE SELECTED FROM THE GROUP CONSISTING OF ALKALI METAL HYDROXIDE, ALKALINE EARTH METAL HYDROXIDES AND MIXTURES THEREOF, WITH CARBON DIOXIDE TO REACT WITH AT LEAST A MAJOR PORTION OF SAID HYDROXIDE AND FORM SOLID CARBONATE PARTICLES THE MAJOR PORTION OF WHICH HAVE A MAXIMUM DIMENSION OF AT LEAST 60A, AND SUBSTANTIALLY ALL OF THE PARTICLES IN SAID CARBONATECONTAINING MIXTURE HAVE A MAXIMUM DIMENSION LESS THAN ABOUT 3 MICRONS;

Claim 4

Dependent Claim 81 words

CONTACTING A MIXTURE COMPRISING SAID LUBRICATING OIL, SAID CARBOXYLATE AND AT LEAST ONE HYDROXIDE SELECTED FROM THE GROUP CONSISTING OF ALKALI METAL HYDROXIDE, ALKALINE EARTH METAL HYDROXIDES AND MIXTURES THEREOF, WITH CARBON DIOXIDE TO REACT WITH AT LEAST A MAJOR PORTION OF SAID HYDROXIDE AND FORM SOLID CARBONATE PARTICLES THE MAJOR PORTION OF WHICH HAVE A MAXIMUM DIMENSION OF AT LEAST 60A, AND SUBSTANTIALLY ALL OF THE PARTICLES IN SAID CARBONATECONTAINING MIXTURE HAVE A MAXIMUM DIMENSION LESS THAN ABOUT 3 MICRONS;

Claim 5

Dependent Claim 27 words

CONTACTING SAID CARBONATE-CONTAINING MIXTURE WITH SAID WATER-SOLUBLE SALT TO FORM A SUBSTANTIALLY UNIFORM COMPOSITION IN THE PRESENCE OF SUFFICIENT WATER TO SOLUBILIZE THE WATER SOLUBLE SALT; AND

Claim 6

Dependent Claim 27 words

CONTACTING SAID CARBONATE-CONTAINING MIXTURE WITH SAID WATER-SOLUBLE SALT TO FORM A SUBSTANTIALLY UNIFORM COMPOSITION IN THE PRESENCE OF SUFFICIENT WATER TO SOLUBILIZE THE WATER SOLUBLE SALT; AND

Claim 7

Dependent Claim 27 words

contacting said carbonate-containing mixture with said water-soluble salt to form a substantially uniform composition in the presence of sufficient water to solubilize the water soluble salt; and

Claim 8

Dependent Claim 27 words

contacting said carbonate-containing mixture with said water-soluble salt to form a substantially uniform composition in the presence of sufficient water to solubilize the water soluble salt; and

Claim 9

Dependent Claim 26 words

contacting said carbonate-containing mixture with said water-soluble salt to form a substantially uniform composition in the presence of sufficient water to solubilize said water-soluble salt; and

Claim 10

Dependent Claim 26 words

contacting said carbonate-containing mixture with said water-soluble salt to form a substantially uniform composition in the presence of sufficient water to solubilize said water-soluble salt; and

Claim 11

Dependent Claim 89 words

The method of claim 1 wherein the contacting of step (1) occurs at a temperature in the range from about 200*F. to about 400*F. and at a pressure in the range from about 20 psig. to about 200 psig, and the contacting of step (2) occurs at a temperature in the range from about 200*F. to about 400*F. and at a pressure to prevent release of a substantial amount of water from said carbonate-containing mixture, said pressure being in the range from about 20 psig. to about 200 psig.

Claim 12

Dependent Claim 43 words

The method of claim 2 wherein at least one carboxylate contains from about 12 to about 200 carbon atoms per molecule and said carboxylate and said carbonate are of a metal selected from the group consisting of alkaline earth metal and mixtures thereof.

Claim 13

Dependent Claim 27 words

substantially dehydrating said composition to form a grease composition wherein substantially all the particles of said water-soluble salt have a maximum dimension of less than 5 microns.

Claim 14

Dependent Claim 27 words

substantially dehydrating said composition to form a grease composition wherein substantially all the particles of said water-soluble salt have a maximum dimension of less than 5 microns.

Claim 15

Dependent Claim 30 words

substantially dehydrating the composition to form said corrosion inhibitor concentrate wherein substantially all of the particles of said water soluble salt have a maximum dimension of less than 5 microns.

Claim 16

Dependent Claim 30 words

substantially dehydrating the composition to form said corrosion inhibitor concentrate wherein substantially all of the particles of said water soluble salt have a maximum dimension of less than 5 microns.

Claim 17

Dependent Claim 30 words

SUBSTANTIALLY DEHYDRATING THE COMPOSITION TO FORM SAID CORROSION INHIBITOR CONCENTRATE WHEREIN SUBSTANTIALLY ALL OF THE PARTICLES OF SAID WATER SOLUBLE SALT HAVE A MAXIMUM DIMENSION OF LESS THAN 5 MICRONS.

Claim 18

Dependent Claim 30 words

SUBSTANTIALLY DEHYDRATING THE COMPOSITION TO FORM SAID CORROSION INHIBITOR CONCENTRATE WHEREIN SUBSTANTIALLY ALL OF THE PARTICLES OF SAID WATER SOLUBLE SALT HAVE A MAXIMUM DIMENSION OF LESS THAN 5 MICRONS.

Claim 19

Dependent Claim 37 words

The method of claim 3 wherein step (2) comprises contacting said carbonate-containing mixture with an aqueous solution of said water-soluble salt, said aqueous solution containing at least about 1 percent by weight of said water soluble salt.

Claim 20

Dependent Claim 52 words

The method of claim 4 wherein said water-soluble salt is selected from the group consisting of alkali metal nitrites, alkali metal chromates and mixtures thereof, said aqueous solution contains at least about 5 percent by weight of said water-soluble salt, and said carboxylate and said carbonate are calcium carboxylate and calcium carbonate.

Claim 21

Dependent Claim 69 words

The method of claim 5 wherein the contacting of step (1) occurs at a temperature in the range from about 250*F. to about 400*F. for a period of time from about 10 minutes to about 24 hours and the contacting of step (2) occurs at a temperature in the range from about 300*F. to about 400*F. for a period of time from about 10 minutes to about 2 hours.

Claim 22

Dependent Claim 53 words

The method of claim 6 wherein said corrosion inhibitor concentrate comprises from about 30 percent to about 95 percent by weight of said lubricating oil, from about 0.5 percent to about 30 percent by weight of said dispersant and from about 0.5 percent to about 65 percent by weight of said water-soluble salt.

Claim 23

Dependent Claim 69 words

The method of claim 7 wherein said carboxylate is a combination of at least one low molecular weight carboxylate containing from 1 to about 12 carbon atoms per molecule at least one high molecular weight carboxylate containing from about 12 to about 200 carbon atoms per molecule, the mole ratio of said Low molecular weight carboxylate to said high molecular weight carboxylate being from about 1 to about 15.

Claim 24

Independent Claim 66 words

A method for producing a grease composition comprising a major amount of lubricating oil, at least one cloudy type overbased alkali or alkaline earth metal dispersant comprising a combination of at least two carboxylates and at least one oil insoluble carbonate in an amount effective to thicken said lubricating oil to grease consistency and at least one water-soluble salt in a corrosion inhibiting amount which comprises:

Claim 25

Independent Claim 66 words

A method for producing a grease composition comprising a major amount of lubricating oil, at least one cloudy type overbased alkali or alkaline earth metal dispersant comprising a combination of at least two carboxylates and at least one oil insoluble carbonate in an amount effective to thicken said lubricating oil to grease consistency and at least one water-soluble salt in a corrosion inhibiting amount which comprises:

Claim 26

Dependent Claim 89 words

The method of claim 9 wherein the contacting of step (1) occurs at a temperature in the range from about 200*F. to about 400*F. and at a pressure in the range from about 20 psig. to about 200 psig. and the contacting of step (2) occurs at a temperature in the range from about 220*F. to about 400*F. and at a pressure to prevent release of a substantial amount of water from said carbonate-containing mixture, said pressure being in the range from about 20 psig. to about 200 psig.

Claim 27

Dependent Claim 94 words

The method of claim 10 wherein said carboxylate combination comprises at least one low molecular weight carboxylate containing from 1 to about 12 carbon atoms per molecule and at least one high molecular weight carboxylate containing from about 12 to about 200 carbon atoms per molecule, the mole ratio of said low molecular weight carboxylate to said high molecular weight carboxylate being in the range from about 1 to about 15 and said carboxylate combination and said carbonate are of a metal selected from the group consisting of alkaline earth metal and mixtures thereof.

Claim 28

Dependent Claim 37 words

The method of claim 11 wherein step (2) comprises contacting said carbonate containing mixture with an aqueous solution of said water-soluble salt, said aqueous solution containing at least about 1 percent by weight of said water-soluble salt.

Claim 29

Dependent Claim 41 words

The method of claim 12 wherein said water-soluble salt is selected from the group consisting of alkali metal nitrites alkali metal chromates and mixtures thereof and said aqueous solution contains at least about 5 percent by weight of said water-soluble salts.

Claim 30

Dependent Claim 69 words

The method of claim 13 wherein the contacting of step (1) occurs at a temperature in the range from about 250*F. to about 400*F. for a period of time from about 10 minutes to about 24 hours and the contacting of step (2) occurs at a temperature in the range from about 300*F. to about 400*F. for a period of time from about 10 minutes to about 2 hours.

Claim 31

Dependent Claim 44 words

The method of claim 14 wherein said grease composition comprises a major amount of lubricating oil, from about 0.1 percent to about 15 percent by weight of said dispersant, and from about 0.1 percent to about 5.0 percent by weight of said water-soluble salt.

Claim 32

Dependent Claim 60 words

The method of claim 9 wherein said low molecular weight carboxylate contains from 2 to 4 carbon atoms per molecule and said high molecular weight carboxylate contains from about 12 to about 24 carbon atoms per molecule and the mole ratio of said low molecular weight carboxylate to said high molecular weight carboxylate is between about 3 to about 7.

Claim 33

Dependent Claim 68 words

In a method for producing a corrosion inhibited grease comprising a major amount of lubricating oil thickened to grease consistency and a water-soluble salt in a corrosion inhibiting amount, the improvement which comprises contacting lubricating oil with the corrosion inhibitor concentrate of claim 1 to form a lubricating oil composition wherein substantially all the particles of said water-soluble salt have a maximum dimension of less than 5 microns.

Claim 34

Dependent Claim 68 words

In a method for producing a corrosion inhibited grease comprising a major amount of lubricating oil thickened to grease consistency and a water-soluble salt in a corrosion inhibiting amount, the improvement which comprises contacting lubricating oil with the corrosion inhibitor concentrate of claim 2 to form a lubricating oil composition wherein substantially all the particles of said water-soluble salt have a maximum dimension of less than 5 microns.

Claim 35

Dependent Claim 68 words

In a method for producing a corrosion inhibited grease comprising a major amount of lubricating oil thickened to grease consistency and a water-soluble salt in a corrosion inhibiting amount, the improvement which comprises contacting lubricating oil with the corrosion inhibitor concentrate of claim 4 to form a lubricating oil composition wherein substantially all the particles of said water-soluble salt have a maximum dimension of less than 5 microns.

Claim 36

Dependent Claim 68 words

In a method for producing a corrosion inhibited grease comprising a major amount of lubricating oil thickened to grease consistency and a water-soluble salt in a corrosion inhibiting amount, the improvement which comprises contacting lubricating oil with the corrosion inhibitor concentrate of claim 6 to form a lubricating oil composition wherein substantially all the particles of said water-soluble salt have a maximum dimension of less than 5 microns.

Claim 37

Dependent Claim 68 words

In a method for producing a corrosion inhibited grease comprising a major amount of lubricating oil thickened to grease consistency and a water-soluble salt in a corrosion inhibiting amount, the improvement which comprises contacting lubricating oil with the corrosion inhibitor concentrate of claim 8 to form a lubricating oil composition wherein substantially all the particles of said water-soluble salt have a maximum dimension of less than 5 microns.

Annuity Stage	Window Opens	Payment Deadline	Surcharge Period Until	Estimated Fee	Status
3.5 Years (Year 4)	1977-11-25	1978-05-27	1978-11-26	$2000.00	Window Closed / Lapsed
7.5 Years (Year 8)	1981-11-25	1982-05-27	1982-11-26	$3760.00	Window Closed / Lapsed
11.5 Years (Year 12)	1985-11-25	1986-05-27	1986-11-26	$7700.00	Window Closed / Lapsed

Method for producing corrosion inhibiting compositions

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