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US5199959A Expired / Lapsed US ⏱️ 0.0 years remaining

Composition of matter for full and partial calix[8]arene encapsulation of S-triazines for thermal stability enhancement and dissolution in diesel fuel

Assignee: Texaco Inc
•
Filing: 1992-03-09
•
Granted: 1993-04-06
•
Expires: 2012-03-09
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Abstract

Abstract A method has been developed to solubilize hydroxy S-triazines containing at least one hydroxy function in diesel fuel and to enhance their overall thermal stability. The products which result from the full or partial encapsulation of hydroxy-S-triazine with calix[8]arene have unique and novel properties and reduce or eliminate nitrogen oxides level in diesel fuel.

Inventors

  • 👤 Rodney L. Sung
  • 👤 Thomas F. DeRosa
  • 👤 Benjamin J. Kaufman

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-06 06:20
CPC Classifications
C; C10; C10L; C10L10/00; C10L10/02; C10L1/00; C10L1/10; C10L1/14; C10L1/143; C10L1/18; C10L1/182; C10L1/183; C10L1/1835; C10L1/192; C10L1/198; C10L1/1981; C10L1/22; C10L1/232; C10L1/234; C10L1/238; F; F02; F02B; F02B3/00; F02B3/06

Claims Analysis

Total Claims: 3
Claim 1
Independent Claim 71 words
A composition of matter comprising a mixture of: a) p-nonyl calix[8]arene-tri-hydroxyl-s-triazine; b) p-nonyl calix[8]arene)ether-di-hydroxyl-s-triazine; c) p-nonyl-calix[8]arene)diether-hydroxyl-s-triazine; d) p-nonyl-calix[8]arene)triether-s-triazine; e) p-phenyl-co-p-nonyl-calix[8]arene-tri-hydroxyl-s-triazine; f) p-phenyl-co-p-nonyl-calix[8]arene)-di-hydroxyl-s-triazine; g) (p-phenyl-c-p-nonyl-calix[8]arene)diether-s-triazine; h) (phenyl-co-p-nonyl-calix[8]-arene)triether-s-triazine; i) di(p-nonyl-calix[8]arene)diether-hydroxyl-s-triazine; j) (p-nonyl-calix[8]arene)ether-d-(p-nonyl-calix[8]arene)'diether-s-triazine; k) di(p-phenyl-c-p-nonyl-calix[8]arene)diether-hydroxyl-s-triazine; l) (p-phenyl-co-p-nonyl-calix[8]arene)ether-di(p-phenyl-co-p-nonyl-calix[8]arene)'diether-s-triazine; m) tri-(p-nonyl-calix[8]arene)triether-s-triazine; n) tri(p-phenyl-co-p-nonyl-calix[8]arene)triether-s-triazine; o) [(p-nonyl-calix[8]arene) -(hydroxyl-s-triazine)]copolyether; p) [(p-phenyl-co-p-nonyl-calix[8]arene)-(hydroxyl-s-triazine)]copolyether; q) [( p - n o n y l - c a l i x [8 ]a r e n e ) - ( s-triazine)]starpolyether; and r) [(p-phenyl-co-p-nonyl-calix[8]arene)-(s-triazine)starpolyether.
Claim 2
Dependent Claim 71 words
A composition of matter comprising a mixture of: a) p-nonyl calix[8]arene-tri-hydroxyl-s-triazine; b) p-nonyl calix[8]arene)ether-di-hydroxyl-s-triazine; c) p-nonyl-calix[8]arene)diether-hydroxyl-s-triazine; d) p-nonyl-calix[8]arene)triether-s-triazine; e) p-phenyl-co-p-nonyl-calix[8]arene-tri-hydroxyl-s-triazine; f) p-phenyl-co-p-nonyl-calix[8]arene)-di-hydroxyl-s-triazine; g) (p-phenyl-c-p-nonyl-calix[8]arene)diether-s-triazine; h) (phenyl-co-p-nonyl-calix[8]-arene)triether-s-triazine; i) di(p-nonyl-calix[8]arene)diether-hydroxyl-s-triazine; j) (p-nonyl-calix[8]arene)ether-d-(p-nonyl-calix[8]arene)'diether-s-triazine; k) di(p-phenyl-c-p-nonyl-calix[8]arene)diether-hydroxyl-s-triazine; l) (p-phenyl-co-p-nonyl-calix[8]arene)ether-di(p-phenyl-co-p-nonyl-calix[8]arene)'diether-s-triazine; m) tri-(p-nonyl-calix[8]arene)triether-s-triazine; n) tri(p-phenyl-co-p-nonyl-calix[8]arene)triether-s-triazine; o) [(p-nonyl-calix[8]arene) -(hydroxyl-s-triazine)]copolyether; p) [(p-phenyl-co-p-nonyl-calix[8]arene)-(hydroxyl-s-triazine)]copolyether; q) [( p - n o n y l - c a l i x [8 ]a r e n e ) - ( s-triazine)]starpolyether; and r) [(p-phenyl-co-p-nonyl-calix[8]arene)-(s-triazine)starpolyether.
Claim 3
Dependent Claim 82 words
The composition matter of claim 1, wherein the materials are represented, respectively, by the formulas: ##STR9## ##STR10## ##STR11## ##STR12## ##STR13## ##STR14## ##STR15## ##STR16## ##STR17## ##STR18## ##STR19## ##STR20## ##STR21## ##STR22## ##STR23## ##STR24## ##STR25## ##STR26## wherein [x varies from 6 to 60; R 1 ], R 2 [R 3 , R 5 ,] and R 6 [, and R 7 ] are each hydrogen or a (C 1 -C 50 ) hydrocarbon[; and R 4 is H or a (C 1 -C 10 )hydrocarbon].

References Cited (Backward Citations)

US3763094A Cited
US5114608A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1996-04-05 1996-10-05 1997-04-06 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 2000-04-05 2000-10-05 2001-04-06 $3760.00 Window Closed / Lapsed
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