IPC분류정보
국가/구분 |
United States(US) Patent
등록
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국제특허분류(IPC7판) |
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출원번호 |
US-0751367
(1991-08-28)
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발명자
/ 주소 |
- DiBiase Stephen A. (504 E. 266 St. Euclid OH 44132)
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인용정보 |
피인용 횟수 :
8 인용 특허 :
0 |
초록
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This invention is directed to novel compositions comprising (A) certain sulfur compounds, and (B) at least one carboxylic detergent composition. The compositions of the invention are useful as additives in lubricants and functional fluids, fuels and aqueous systems. Lubricating, fuel and functional
This invention is directed to novel compositions comprising (A) certain sulfur compounds, and (B) at least one carboxylic detergent composition. The compositions of the invention are useful as additives in lubricants and functional fluids, fuels and aqueous systems. Lubricating, fuel and functional fluid compositions containing the derivatives of the invention exhibit improved antioxidant, anti-wear, thermal stability and/or extreme-pressure properties. The compositions of the invention comprise the combination of (A) at least one sulfur compound characterized by the structural formula [Figure] (I) wherein R1, R2, R3, R4, G1 and G2 and x are as defined hereinafter; and (B) at least one carboxylic dispersant composition prepared by the reaction of a hydrocarbon-substituted succinic acid-producing compound with at least about one-half equivalent, per equivalent of acid-producing compound, of an organic hydroxy compound, or amine containing at least one hydrogen attached to a nitrogen atom, or a mixture of said hydroxy compound and amine.
대표청구항
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A composition comprising the combination of: (A) at least one sulfur compound characterized by the structural formula [Figure] (I) wherein R1, R2, R3 and R4 are each independently H or a hydrocarbyl group, or R1 and R3 is G1 or G2, or R1 and R2, or R3 and R4, together are an alkylene group containin
A composition comprising the combination of: (A) at least one sulfur compound characterized by the structural formula [Figure] (I) wherein R1, R2, R3 and R4 are each independently H or a hydrocarbyl group, or R1 and R3 is G1 or G2, or R1 and R2, or R3 and R4, together are an alkylene group containing about 4 to about 7 carbon atoms; G1 and G2 are each independently COOR, C N [C〓N], R5-C〓NR6, CON(R)2, or NO2, R5 and each R are independently H or a hydrocarbyl group, and R6 is H or a hydrocarbyl group, or G1 is CH2OH: when both G1 and G2 are R5C〓NR6 [R5C-NR6], the two R6 groups together may be a hydrocarbylene group linking the two nitrogen atoms; when G1 is CH2OH and G2 is COOR, a lactone may be formed by intramolecular condensation of G1 and G2; and x is an integer from 1 to about 8; and (B) at least one carboxylic dispersant composition prepared by the reaction of (B-1) at least one boron compound selected from the class consisting of boron tiroxide, boron halides, boron acids, boron anhydrides, boron amides and esters of boron acids with (B-2) at least one soluble acylated nitrogen intermediate prepared by the reaction of a hydrocarbon-substituted succinic acid-producing compound with at least about one-half equivalent, per equivalent of acid producing compound, of an amine containing at least one hydrogen attached to a nitrogen atom.
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