LOW VISCOSITY, GOOD FUEL COMBUSTION POLYOL ESTER BASE COOLING AGENT CONTAINING POLYETHER AND ANTIOXIDANT WITH OR WITHOUT PHOSPHATE ESTER

    公开(公告)号:JPH11228984A

    公开(公告)日:1999-08-24

    申请号:JP31144598

    申请日:1998-10-30

    Applicant: LUBRIZOL CORP

    Abstract: PROBLEM TO BE SOLVED: To obtain excellent compatibility with lubricants and cooling agents by comprising a fluorine-containing hydrocarbon having a specific number of carbon atoms, an ester of a carboxylic acid with a polyhydric hydroxy com pound and an alkoxylated alcohol or phenol or an alkoxylated glycol at a specific ratio. SOLUTION: A composition comprises 10-90 wt.% fluorinecontaining 1-2C hydrocarbon; 5-90 wt.% ester of a carboxylic acid represented by the formula: R[OC(O)R ]n (wherein R is hydrocarbyl; R is H, 1-7C hydrocarbyl or the like; and n is 2-10) with a polyhydric hydroxy compound; and 0.1-5 wt.% alkoxylated alcohol or phenol represented by formula I (wherein R is 1-20C aliphatic, 6-24C aromatic or the like; R is H, methyl or ethyl; y is 1-3; and x is 2-50) or alkoxylated glycol represented by formula II (wherein R is 2-8C hydroxyalkyl; and R, y and x are the same as defined above).

    COMPOSITION OF LOW CHLORINE CONTENT FOR LUBRICANT AND FUEL USE

    公开(公告)号:JPH11158479A

    公开(公告)日:1999-06-15

    申请号:JP23612798

    申请日:1998-08-21

    Applicant: LUBRIZOL CORP

    Abstract: PROBLEM TO BE SOLVED: To provide a compd. of flow chlorine content for lubricant. SOLUTION: This is a method for manufacturing a polyolefin-substituted carboxylic acid acylation agent of a low chlorine content and comprises the following processes. A. A process in which a mixture contg. a polyolefin having an Mn of 300-10,000, 4 or 3 substituted end groups of ca. 90 mol.% of the polyolefin, and a halogen is formed at lower than ca. 150 deg.C and heated. B. A process in which an α,β-unsaturated compd. is added. C. A process in which the mixture is heated up to ca. 170-220 deg.C and kept at the temperature. D. A process in which the mixture is cooled to lower than ca. 220 deg.C and an equivalent amount of the halogen and the α,β-unsaturated compd. is added. E. A process in which the temperature of the mixture is raised to a certain level lower than ca. 220 deg.C, and keep it until the unreacted α,β-unsaturated compd. is reduced to less than ca. 3%.

    ADDITIVE CONCENTRATE CONTAINING MIXTURE OF ORGANIC DILUENT WITH ESTERIFIED CARBOXY-CONTAINING INTERPOLYMER AND LUBRICANT CONTAINING THE SAME

    公开(公告)号:JPH10204464A

    公开(公告)日:1998-08-04

    申请号:JP258798

    申请日:1998-01-08

    Applicant: LUBRIZOL CORP

    Abstract: PROBLEM TO BE SOLVED: To obtain an additive concentrate, capable of imparting excellent low-temperature characteristics and improving properties of viscosity index and useful as a viscosity improver, etc., by including a specific organic diluent and a specified ester in a specific proportion therein. SOLUTION: This additive concentrate comprises (A) 5-95wt.% organic diluent such as a naphthenic oil or a synthetic oil and (B) 95-5wt.% ester derived from a carboxy-containing interpolymer having 0.05-0.35 reduced specific viscosity. The interpolymer is derived from two or more monomers of components (i) and (ii). (i) either one of the monomers is one or more of a 2-30C aliphatic olefin and a vinyl aromatic monomer and (ii) the other of the monomers is one or more α,β-unsaturated acylating agents. The ester has 20-70mol% of 12-19C ester groups (based on the number of mol of carboxyl groups in the interpolymer) and 80-30mol% of 8-11C ester groups (based on the number of mol of the carboxyl groups in the interpolymer), derived from carboxy groups of the interpolymer and present in the polymeric structure thereof.

Patent Agency Ranking