Gun oil composition

• US 20060194701A1
• Filed: 02/25/2005
• Published: 08/31/2006
• Est. Priority Date: 02/25/2005
• Status: Active Grant

• Current Assignee: Paul J. Gibbons
• Original Assignee: Paul J. Gibbons
• Inventors: Gibbons, Paul J.
• Granted Patent: US 7,432,231 B2
• Time in Patent Office: Days
• US Class Current: 508/208
• CPC Class Codes: C10M 169/044 the additives being a mixture of non-macromolecular and macromolecular compounds
• CPC Class Codes: C10M 2203/0206 used as base material
• CPC Class Codes: C10M 2203/1025 used as base material
• CPC Class Codes: C10M 2203/1065 used as base material
• CPC Class Codes: C10M 2207/021 having hydroxy groups bound to acyclic or cycloaliphatic carbon atoms
• CPC Class Codes: C10M 2207/0215 used as base material
• CPC Class Codes: C10M 2207/026 with tertiary alkyl groups
• CPC Class Codes: C10M 2207/123 polycarboxylic
• CPC Class Codes: C10M 2207/281 of (cyclo)aliphatic monocarboxylic acids
• CPC Class Codes: C10M 2209/084 Acrylate; Methacrylate
• CPC Class Codes: C10M 2223/045 Metal containing thio derivatives
• CPC Class Codes: C10M 2229/041 containing aliphatic substituents
• CPC Class Codes: C10N 2010/04 Groups 2 or 12
• CPC Class Codes: C10N 2040/00 Specified use or application for which the lubricating composition is intended

Abstract

A gun oil composition consisting essentially of: 2.0 to 15% by weight of isopropanol; 20 to 60% by weight of heptane or a petroleum distillate;

• • 3 to 20% by weight of a mixture of viscosity modifiers, antioxidants and reducing agents including benzyl acetate, t-dibutyl-p-cresol, at least one alkyl succinic acid, at least one zinc alkyl thiophosphate, polymethacrylate, and methyl silicone polymer, wherein the alkyl is C₁ to C₆ alkyl; and the balance, lube oil bright stock to 100% by weight.

Claims

1. A gun oil composition consisting essentially of:

2.0 to 15% by weight of isopropanol;

to 60% by weight of heptane or a petroleum distillate selected from the group which consists of;

solvent refined light paraffinic distillate CAS No. 64741-89-5,

solvent refined heavy paraffinic distillate CAS No. 64741-88-4,

hydrotreated heavy naphthenic distillate CAS No. 64742-52-5,

hydrotreated light naphthenic distillate CAS No. 64742-53-6,

solvent dewaxed heavy paraffinic distillate CAS No. 64742-65-0,

solvent dewaxed light paraffinic distillate CAS No, 64742-56-9,

hydrotreated lubricating oil CAS No. 72623-83-7,

solvent refined heavy naphthenic distillate CAS No. 64741-96-4, and

hydrotreated heavy paraffinic distillate CAS No. 64742-54-7;

3 to 20% by weight of a mixture of viscosity modifiers, antioxidants and reducing agents including benzyl acetate, t-butylcresol, at least one alkyl succinic acid, at least one zinc alkyl thiophosphate, polymethacrylate, and methyl silicone polymer, wherein the alkyl is C₁ to C₆ alkyl; and

the balance, lube oil bright stock to 100% by weight.

2. The gun oil composition defined in claim 1 wherein said mixture comprises:

benzyl acetate,

t-butylcresol,

alkylsuccinic acid,

zinc alkyl thiophosphate,

polymethacrylate, and

methyl silicone polymer

in a weight ratio of substantially;

1.2;

0.8;

0.4;

1.0;

1.9;

1.0.

3. The gun oil composition defined in claim 2 wherein said mixture is present in said composition in a percent by weight between 3.1 to 18.9.

4. The gun oil composition defined in claim 3 wherein said mixture is present in said composition in a percent by weight of substantially 6.3.

5. The gun oil composition defined in claim 3 wherein said isopropanol is present in an amount between 2.1 and 12.5 weight percent.

6. The gun oil composition defined in claim 1 wherein said composition is selected from the group consisting of the examples described in the following table:

7. A method of maintaining a gun having metal parts including a firing mechanism, comprising the step of applying to said metal parts a gun oil composition consisting essentially of:

2.0 to 15% by weight of isopropanol;

to 60% by weight of heptane or a petroleum distillate selected from the group which consists of;

solvent refined light paraffinic distillate CAS No. 64741-89-5,

solvent refined heavy paraffinic distillate CAS No. 64741-88-4,

hydrotreated heavy naphthenic distillate CAS No. 64742-52-5,

hydrotreated light naphthenic distillate CAS No. 64742-53-6,

solvent dewaxed heavy paraffinic distillate CAS No. 64742-65-0,

solvent dewaxed light paraffinic distillate CAS No, 64742-56-9,

hydrotreated lubricating oil CAS No. 72623-83-7,

solvent refined heavy naphthenic distillate CAS No. 64741-96-4, and

hydrotreated heavy paraffinic distillate CAS No. 64742-54-7;

3 to 20% by weight of a mixture of viscosity modifiers, antioxidants and reducing agents including benzyl acetate, t-butylcresol, at least one alkyl succinic acid, at least one zinc alkyl thiophosphate, polymethacrylate, and methyl silicone polymer, wherein the alkyl is C₁ to C₆ alkyl; and

the balance, lube oil bright stock to 100% by weight.

8. The method defined in claim 7 wherein said mixture comprises:

benzyl acetate,

t-butylcresol,

alkylsuccinic acid,

zinc alkyl thiophosphate,

polymethacrylate, and

methyl silicone polymer

in a weight ratio of substantially;

1.2;

0.8;

0.4;

1.0;

1.9;

1.0.

9. The method defined in claim 8 wherein said mixture is present in said composition in a percent by weight between 3.1 to 18.9.

10. The method defined in claim 9 wherein said mixture is present in said composition in a percent by weight of substantially 6.3.

11. The method defined in claim 10 wherein said isopropanol is present in an amount between 2.1 and 12.5 weight percent.

12. The method defined in claim 11 wherein said composition is selected from the group consisting of the examples described in the following table: