Enhanced antistatic additives for hydrocarbon fuels & solvents

a technology of hydrocarbon fuels and solvents, applied in the direction of fuels, liquid carbonaceous fuels, petroleum industry, etc., can solve the problems of high consumption, high consumption, and high danger of explosion or fire, and achieve enhanced performance and high efficiency at low usage levels

Inactive Publication Date: 2007-09-27
INNOSPEC FUEL SPECIALITIES LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0005] The two-component antistatic additives of this invention are characterized by being highly effective at low levels of usage and by being ashless upon burning. These two-component antistatic additives are so efficient that even at relatively low co

Problems solved by technology

Hydrocarbon fuels normally are very poor conductors of electricity.
Electrical charges, therefore, tend to accumulate in the fuel and can be discharged as sparks thus creating the dange

Method used

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  • Enhanced antistatic additives for hydrocarbon fuels & solvents
  • Enhanced antistatic additives for hydrocarbon fuels & solvents
  • Enhanced antistatic additives for hydrocarbon fuels & solvents

Examples

Experimental program
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Embodiment Construction

The Polysulfones:

[0039] The polysulfone compolymers often designated as olefin-sulfur dioxide copolymer, olefin polysulfones, or poly(olefin sulfone) are polymers wherein the structure is considered to be that of alternating copolymers of the olefins and sulfur dioxide, having a one-to-one molar ratio of the comonomers with the olefins in head to tail arrangement. The polysulfones used in this invention are readily prepared by the methods known in the art (cf. Encyclopedia of Polymer Science and Technology Vol. 9, Interscience Publishers, page 460 etc, the entire teaching of which is incorporated herein by reference).

[0040] The weight average molecular weights of the polysulfones are in the range from about 10,000 to about 1,500,000, in one aspect the range is from about 50,000 to about 900,000, and in another aspect the molecular weights range from about 100,000 to about 500,000. Olefin polysulfones whose molecular weights are below about 10,000, while effective in increasing co...

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Abstract

Described herein are enhanced performance of antistatic additive compositions for hydrocarbon fuels, the compositions comprising olefin-sulfur dioxide copolymers in combination with polymeric polyamines prepared using an ortho-xylene solvent.

Description

FIELD OF THE INVENTION [0001] This invention concerns an improved two-component antistatic additive for hydrocarbon fuels and solvents to render them electrically conductive. One component is an olefin-sulfur dioxide copolymer (polysulfone copolymer) prepared in orthoxylene, and the other component is a particular polymeric polyamine. BACKGROUND OF THE INVENTION [0002] Hydrocarbon fuels normally are very poor conductors of electricity. Electrical charges, therefore, tend to accumulate in the fuel and can be discharged as sparks thus creating the danger of an explosion or fire should such charges ignite hydrocarbon-air admixtures that may be present. [0003] Numerous materials have been suggested in the art to increase the electrical conductivity of hydrocarbon fuels. Suggested materials include two-component additives where one component is a polysulfone and the other is a quaternary ammonium compound. Another suggested two-component additive comprises polysulfone as one component an...

Claims

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Application Information

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IPC IPC(8): C10L1/24C10L1/22
CPCC08K5/42C08L79/02C10L1/2641C08L81/06C10L1/143C10L1/146C10L1/1608C10L1/221C10L1/2222C10L1/2225C10L1/238C10L1/2383C10L1/2437C10L1/2462C10L1/2468C10L1/2475C08L81/00
Inventor HENRY, CYRUS PERSHING JR.
Owner INNOSPEC FUEL SPECIALITIES LLC
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