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1. WO2007089772 - LUBRICANT COMPOSITION, FASTENER COATED WITH SAME, AND METHODS FOR MAKING AND USING SAME

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[ EN ]

WHAT IS. CIiAIMED IS:

1. A lubricating composition comprising:
(a) about 50 weight percent to about 70 weight percent of a blend comprising an olefinic resin and a wax;
(b) about 15 weight percent to about 30 weight percent of a fatty acid amide; and
(c) about 10 weight percent to about 20 weight percent of a zinc salt of a fatty acid having carboxylate groups each having 8 to 24 carbon atoms.

2. A lubricating composition as set forth in claim 1 wherein said olefinic resin comprises a polymeric reaction product of a composition comprising first and second olefinic hydrocarbon compounds .

3. A lubricating composition as set forth in claim 1 wherein said olefinic resin comprises a reaction product of a composition comprising at least one a-olefin other than ethylene and propylene, a diene, and a cyclic olefin.

4. A lubricating composition as set forth in claim 1 wherein said olefinic resin comprises a reaction product of a composition comprising 1-hexene, cyclopentadiene, 2—methyl—2— butene, 1, 3-pentadiene, cyclopentene, and 3a, 4, I17a-tetrahydro-4, 7-methanoindene (dicyclopentadiene) .
5. A lubricating composition as set forth in claim 1 wherein said wax comprises a petroleum wax.

6. A lubricating composition as set forth in claim 1 wherein said wax comprises a hydrogenated microcrystalline wax.

7. A lubricating composition as set forth in claim 1 wherein said wax comprises a paraffin wax.

8. A lubricating composition as set forth in claim 1 wherein said wax comprises a hydrogenated microcrystalline wax and a paraffin wax.

9. A lubricating composition as set forth in claim 1 wherein said blend has a melting point in a range of about 66.7°C to about 73.9°C.

10. A lubricating composition as set forth in claim 1 wherein said fatty acid amide comprises a carbonyl group and an adjacent moiety selected from a saturated and unsaturated alkyl group having 7 to 23 carbon atoms.

11. A lubricating composition as set forth in claim 10 wherein said adjacent moiety comprises an unsaturated alkyl group .
12. A lubricating composition as set forth in claim 1 wherein said fatty acid amide comprises an unsaturated primary amide .

13. A lubricating composition as set forth in claim 1 wherein said fatty acid amide comprises oleamide.

14. A lubricating composition as set forth in claim 1 wherein said carboxylate groups are saturated.

15. A lubricating composition as set forth in claim 1 wherein said carboxylate groups are aliphatic carboxylates .

16. A lubricating composition as set forth in claim 1 wherein said fatty acid comprises a component selected from stearic, oleic, lauric, octoic, myristic, palmitic, ricinoleic, hydroxystearic, and dihydroxystearic acid.

17. A lubricating composition as set forth in claim 1 wherein said amide comprises oleamide, and wherein said zinc salt of a fatty acid comprises zinc stearate.

18. A lubricating composition as set forth in claim 17 wherein said olefinic resin comprises a reaction product of a composition comprising 1-hexene, cyclopentadiene, 2-methyl-2-butene, 1 , 3-pentadiene, cyclopentene, and dicyclopentadiene, and wherein said wax comprises a member selected from at least one of a hydrogenated microcrystalline wax, a paraffin wax, and a combination comprising hydrogenated microcrystalline and paraffin waxes.

19. A lubricating composition as set forth in claim 1 wherein said lubricating composition has a melt applicable to and subsequently solidifiable on a metallic workpiece to leave a homogeneous, continuous lubricant film on a metallic workpiece .

20. A lubricating composition as set forth in claim 1 wherein said lubricating composition has a melting point in a range of about 1300C to about 1600C.

21. A lubricating composition as set forth in claim 1 wherein said lubricating composition is free of volatile organic compounds.

22. A coated fastener comprising:
a fastener body having a surface; and
a coating applied on at least a portion of said surface^ said coating comprising a' lubricating composition comprising about 50 weight percent to about 70 weight percent of a blend comprising an olefinic resin and a wax, about 15 weight percent to about 30 weight percent of a fatty acid amide, and about 10 weight percent to about 20 weight percent of a zinc salt of a fatty acid having carboxylate groups each having 8 to 24 carbon atoms.

23. A method of making a coated fastener, said method comprising the steps of:
providing a fastener having a fastener body with a surface; and
coating at least a portion of the surface with a lubricating composition having about 50 weight percent to about 70 weight percent of a blend comprising an olefinic resin and a wax, about 15 weight percent to about 30 weight percent of a fatty acid amide, and about 10 weight percent to about 20 weight percent of a zinc salt of a fatty acid having carboxylate groups each having 8 to 24 carbon atoms.

24. A method for mating a fastener with a workpiece having a pilot hole defined by an inner wall portion, said method comprising the steps of:
providing a fastener having a longitudinal axis, a head and a shank extending from the head, the shank having a threaded region comprising an external helical thread;
preconditioning at least one of the threaded region and the inner wall portion to include a lubricating composition having about 50 weight percent to about 70 weight percent of a blend comprising an olefinic resin and a wax, about 15 weight percent to about 30 weight percent of a fatty acid amide, and about 10 weight percent to about 20 weight percent of a zinc salt of a fatty acid having carboxylate groups each having 8 to 24 carbon atoms;
inserting one end of the shank into the pilot hole; and
rotating the head about the longitudinal axis and longitudinally advancing the fastener forward to drive a portion of the shank into the pilot hole and forming a thread in a portion thereof.