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Hydrolytically stable phthalate ester lubricants and method of metal working with hydrolytically stable phthalate esters lubricants

A technology for phthalate and metal processing, which is applied in the field of hydrolysis-stabilized phthalate lubricant and metal processing field using the hydrolysis-stabilized phthalate lubricant, and can solve the problem of adipic acid ester instability And other issues

Inactive Publication Date: 2006-02-01
STEPAN COMPANY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

But adipates are unstable in aqueous solutions and are therefore less ideal than water-based lubricants

Method used

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  • Hydrolytically stable phthalate ester lubricants and method of metal working with hydrolytically stable phthalate esters lubricants
  • Hydrolytically stable phthalate ester lubricants and method of metal working with hydrolytically stable phthalate esters lubricants
  • Hydrolytically stable phthalate ester lubricants and method of metal working with hydrolytically stable phthalate esters lubricants

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Experimental program
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Embodiment Construction

[0014] specific implementation plan

[0015] Phthalate esters that may be used in the lubricants of the present invention include (I) phthalate ester polyester-ether polyols, (II) phthalic anhydride reacted with an equivalent amount of fatty alcohol followed by multiple moles of Ethoxylation of ethylene oxide (or propylene oxide), and (III) amine neutralized salts of substance (II).

[0016] Regarding (I), the phthalate polyester-ether polyol is the reaction product of:

[0017] (1) about 2-60% phthalic anhydride or phthalic acid, by weight of the polyester-ether polyol;

[0018] (2) About 40-98% of at least one general formula is HO-R 1 -OH polyol, by weight of polyester-ether polyol,

[0019] where R 1 express:

[0020] (a) an alkylene group of about 2-10 carbon atoms;

[0021] (b)-CH 2 -R 2 -CH 2 -

[0022] where R 2 express:

[0023] and or

[0024] (c)-(R 3 O) n -R 3 -

[0025] where each R 3 is independently an alkylene group of about 2 to about 4 ...

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Abstract

A water-based lubricant is provided that includes a phthalate ester in an amount of about 2 % to about 20 % based on the weight of the final composition and water in an amount of about 60 % to about 93 % based on the weight of the final composition. Also provided are a method of making the water-based lubricant and a method of metalworking using the water-based lubricant.

Description

[0001] related application [0002] Not applicable [0003] Federally Sponsored Research or Development [0004] Not applicable [0005] Microfiche / Copyright Reference [0006] Not applicable Background technique [0007] Lubricants are required in many operations in the metalworking industry. Water-based lubricants are especially desirable due to their ease of use and handling. Adipates have also been used as successful lubricants in the metalworking industry. But adipate is unstable in aqueous solutions, so it's not as ideal as water-based lubricants. It has been clear in the past that esters with groups that have a steric bulk in close proximity to the ester group may impart some hydrolytic stability to the lubricant. The metalworking industry has begun to use isopropyl and 2-ethylhexyl esters as a source of hydrolytic stability due to the steric identity of these groups adjacent to the ester bond. However, there remains a need for hydrolytically stable lubricants f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M173/02
CPCC10M2209/112C10M2201/003C10M2209/102C10M2207/142C10M173/02C10N2240/40C10M2209/109C10M2215/042C10M2201/02C10M2209/106C10N2230/06C10M2209/104C10M2209/108C10M2207/289C10N2230/66C10M2207/285C10N2030/06C10N2030/66C10N2040/20C10M2207/022
Inventor 詹姆斯·A·方斯
Owner STEPAN COMPANY