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US4386939A Expired / Lapsed US ⏱️ 0.0 years remaining

Reaction products of certain heterocycles with aminophenols

Assignee: Lubrizol Corp
•
Filing: 1982-04-01
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Granted: 1983-06-07
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Expires: 2002-04-01
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Abstract

Abstract Aminophenols and analogous aromatic compounds, especially those containing a hydrocarbon-based substituent preferably having about 10 to about 750 aliphatic carbon atoms, react with 3- or 4-membered ring heterocyclic compounds, preferably epoxides, to form compositions useful as dispersants and detergents in lubricants and fuels.

Inventors

  • 👤 Richard M. Lange

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-02 22:41
CPC Classifications
C; C07; C07C; C07C205/00; C07C205/13; C07C205/20; C07C205/21; C07C205/22; C10; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/22; C10L1/221; C10L1/24; C10L1/2493; C10M; C10M133/00; C10M133/02; C10M133/04; C10M133/12; C10M133/14; C10M159/00; C10M159/12; C10M177/00; C10M2215/00; C10M2215/02; C10M2215/04; C10M2215/042; C10M2215/06; C10M2215/062; C10M2217/00; C10M2217/02; C10M2217/04; C10M2219/00; C10M2219/08; C10M2219/082; C10M2219/084; C10M2219/086; C10M2221/00; C10M2221/04; C10M2221/043; C10M2227/00; C10N; C10N2070/00; C10N2070/02

Claims Analysis

Total Claims: 39
Claim 1
Independent Claim 117 words
A nitrogen-containing composition prepared by reacting, at a temperature from about 25° C. to about 250° C.: (A) at least one aromatic compound having the formula ##STR3## wherein: Ar is a single-ring or fused-ring aromatic radical; R is a substantially saturated non-aromatic hydrocarbon-based radical containing an average of about 10 to about 750 aliphatic carbon atoms; and each of a, b and c is an integer from 1 to three times the number of aromatic nuclei in Ar; with (B) at least one 3- or 4-membered ring heterocyclic compound in which the heterocyclic atom is a single oxygen, sulfur or nitrogen atom; at least about one-half equivalent of reagent B being used per equivalent of reagent A.
Claim 2
Dependent Claim 117 words
A nitrogen-containing composition prepared by reacting, at a temperature from about 25° C. to about 250° C.: (A) at least one aromatic compound having the formula ##STR3## wherein: Ar is a single-ring or fused-ring aromatic radical; R is a substantially saturated non-aromatic hydrocarbon-based radical containing an average of about 10 to about 750 aliphatic carbon atoms; and each of a, b and c is an integer from 1 to three times the number of aromatic nuclei in Ar; with (B) at least one 3- or 4-membered ring heterocyclic compound in which the heterocyclic atom is a single oxygen, sulfur or nitrogen atom; at least about one-half equivalent of reagent B being used per equivalent of reagent A.
Claim 3
Dependent Claim 12 words
A composition according to claim 1 wherein R is a hydrocarbon-based radical.
Claim 4
Dependent Claim 16 words
A composition according to claim 2 wherein Ar is a single-ring radical and a is 1.
Claim 5
Dependent Claim 13 words
A composition according to claim 3 wherein R is an aliphatic hydrocarbon radical.
Claim 6
Dependent Claim 25 words
A composition according to claim 4 wherein R is an alkyl or monoalkenyl radical having an average of about 12 to about 400 carbon atoms.
Claim 7
Dependent Claim 31 words
A composition according to claim 5 wherein R is derived from a polymer of at least one C 2-10 olefin and contains an average of at least about 30 carbon atoms.
Claim 8
Dependent Claim 22 words
A composition according to claim 6 wherein Ar is a benzene ring and each of b and c is 1 or 2.
Claim 9
Dependent Claim 16 words
A composition according to claim 7 wherein R is a polybutenyl radical comprising predominantly isobutene groups.
Claim 10
Dependent Claim 15 words
A composition according to claim 3 wherein the heterocyclic atom in reagent B is oxygen.
Claim 11
Dependent Claim 12 words
A composition according to claim 9 wherein reagent B is an epoxide.
Claim 12
Dependent Claim 21 words
A composition according to claim 10 wherein b and c are each 1 and R is para to the hydroxy group.
Claim 13
Dependent Claim 13 words
A composition according to claim 11 wherein R is an aliphatic hydrocarbon radical.
Claim 14
Dependent Claim 25 words
A composition according to claim 12 wherein R is an alkyl or monoalkenyl radical having an average of about 12 to about 400 carbon atoms.
Claim 15
Dependent Claim 31 words
A composition according to claim 13 wherein R is derived from a polymer of at least one C 2-10 olefin and contains an average of at least about 30 carbon atoms.
Claim 16
Dependent Claim 22 words
A composition according to claim 14 wherein Ar is a benzene ring and each of b and c is 1 or 2.
Claim 17
Dependent Claim 16 words
A composition according to claim 15 wherein R is a polybutenyl radical comprising predominantly isobutene groups.
Claim 18
Dependent Claim 15 words
A composition according to claim 16 wherein reagent B is ethylene oxide or propylene oxide.
Claim 19
Dependent Claim 23 words
A composition according to claim 17 wherein about 1 to about 10 equivalents of reagent B is used per equivalent of reagent A.
Claim 20
Dependent Claim 105 words
A nitrogen-containing composition having the formula ##STR4## wherein: Ar is a single-ring or fused-ring aromatic radical; R is a substantially saturated non-aromatic hydrocarbon-based radical containing an average of about 10 to about 750 aliphatic carbon atoms; R' is a divalent 1,2- or 1,3-hydrocarbon-based radical; X is oxygen, sulfur or NR"; R" is hydrogen or a hydrocarbon-based radical containing from 1 to about 18 carbon atoms; each of a, b and c is an integer from 1 to three times the number of aromatic nuclei in Ar; each of d, e and f is an integer from 0 to 10; and d+e+f is at least 1.
Claim 21
Dependent Claim 105 words
A nitrogen-containing composition having the formula ##STR4## wherein: Ar is a single-ring or fused-ring aromatic radical; R is a substantially saturated non-aromatic hydrocarbon-based radical containing an average of about 10 to about 750 aliphatic carbon atoms; R' is a divalent 1,2- or 1,3-hydrocarbon-based radical; X is oxygen, sulfur or NR"; R" is hydrogen or a hydrocarbon-based radical containing from 1 to about 18 carbon atoms; each of a, b and c is an integer from 1 to three times the number of aromatic nuclei in Ar; each of d, e and f is an integer from 0 to 10; and d+e+f is at least 1.
Claim 22
Dependent Claim 12 words
A composition according to claim 19 wherein R is a hydrocarbon-based radical.
Claim 23
Dependent Claim 16 words
A composition according to claim 20 wherein Ar is a single-ring radical and a is 1.
Claim 24
Dependent Claim 13 words
A composition according to claim 21 wherein R is an aliphatic hydrocarbon radical.
Claim 25
Dependent Claim 25 words
A composition according to claim 22 wherein R is an alkyl or monoalkenyl radical having an average of about 12 to about 400 carbon atoms.
Claim 26
Dependent Claim 31 words
A composition according to claim 23 wherein R is derived from a polymer of at least one C 2-10 olefin and contains an average of at least about 30 carbon atoms.
Claim 27
Dependent Claim 22 words
A composition according to claim 24 wherein Ar is a benzene ring and each of b and c is 1 or 2.
Claim 28
Dependent Claim 16 words
A composition according to claim 25 wherein R is a polybutenyl radical comprising predominantly isobutene groups.
Claim 29
Dependent Claim 10 words
A composition according to claim 21 wherein X is oxygen.
Claim 30
Dependent Claim 12 words
A composition according to claim 27 wherein R' is a 1,2 radical.
Claim 31
Dependent Claim 21 words
A composition according to claim 28 wherein b and c are each 1 and R is para to the hydroxy group.
Claim 32
Dependent Claim 13 words
A composition according to claim 29 wherein R is an aliphatic hydrocarbon radical.
Claim 33
Dependent Claim 25 words
A composition according to claim 30 wherein R is an alkyl or monoalkenyl radical having an average of about 12 to about 400 carbon atoms.
Claim 34
Dependent Claim 31 words
A composition according to claim 31 wherein R is derived from a polymer of at least one C 2-10 olefin and contains an average of at least about 30 carbon atoms.
Claim 35
Dependent Claim 22 words
A composition according to claim 32 wherein Ar is a benzene ring and each of b and c is 1 or 2.
Claim 36
Dependent Claim 16 words
A composition according to claim 33 wherein R is a polybutenyl radical comprising predominantly isobutene groups.
Claim 37
Dependent Claim 14 words
A composition according to claim 34 wherein R' is an ethylene or propylene radical.
Claim 38
Dependent Claim 40 words
An additive concentrate comprising a substantially inert, normally liquid organic diluent and about 20-90% by weight of a nitrogen-containing composition according to claim 1, 3, 7, 8, 9, 15, 16, 17, 19, 21, 25, 26, 27, 33, 34 or 35.
Claim 39
Dependent Claim 51 words
A fuel composition comprising a major amount of a normally liquid fuel and about 0.1 to about 10,000 parts by weight, per million parts of said fuel, of a nitrogen-containing composition according to claim 1, 3, 7, 8, 9, 15, 16, 17, 19, 21, 25, 26, 27, 33, 34 or 35.

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USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1986-06-06 1986-12-06 1987-06-07 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1990-06-06 1990-12-06 1991-06-07 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1994-06-06 1994-12-06 1995-06-07 $7700.00 Window Closed / Lapsed

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