中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

156 records (took 0.019 seconds)

    COMPOSITION CONTAINING THIOCARBONATE AND ACYLATED N I TROGEN-CONTAINING COMPOUND
    13.
    发明专利
    COMPOSITION CONTAINING THIOCARBONATE AND ACYLATED N I TROGEN-CONTAINING COMPOUND 失效

    公开(公告)号：JPH1088168A

    公开(公告)日：1998-04-07

    申请号：JP22175297

    申请日：1997-08-18

    Applicant: LUBRIZOL CORP

    Inventor： SUPP JAMES A ,  MANKA JOHN S ,  ABRAHAM WILLIAM D ,  ROBY STEPHEN H

    IPC: C07C221/00 ,  C07C271/36 ,  C07C329/00 ,  C07C329/14 ,  C10M141/08 ,  C10M141/10 ,  C10N30/06 ,  C10N40/25

    Abstract: PROBLEM TO BE SOLVED: To obtain a functional fluid composition excellent in abrasion resistance, extreme-pressure property and adaptability to seal and suitable for internal combustion engines regardless of low phosphorus level by including a specific thiocarbonate and a specific acylated nitrogen containing compound. SOLUTION: This functional fluid composition comprises (A) a compound of formula I [R to R are each H or hydrocarbyl; X is O or S; (n) is 0-2; T is hydrocarbyl, a hetero group, hydroxyhydrocarbyl, etc.] and (B) an acylated nitrogen-containing compound having a substituent group of >=10 carbon atoms. Furthermore, the composition preferably further contains a phosphorus-containing compound, etc., a compound of formula II [T and T are each R, OR, SR or NRR; R is a hydrocarbyl; X and X are each O or S; (n) is 0-3], etc.

    ENGINE OIL CONTAINING ALDEHYDE/EPOXIDE AND DISPERSANT FOR IMPROVED SEALING PERFORMANCE AND SLUDGE AND DEPOSIT PERFORMANCE
    14.
    发明专利
    ENGINE OIL CONTAINING ALDEHYDE/EPOXIDE AND DISPERSANT FOR IMPROVED SEALING PERFORMANCE AND SLUDGE AND DEPOSIT PERFORMANCE 失效

    公开(公告)号：JP2000063868A

    公开(公告)日：2000-02-29

    申请号：JP20397799

    申请日：1999-07-16

    Applicant: LUBRIZOL CORP

    Inventor： STACHEW CARL F ,  ABRAHAM WILLIAM D ,  SUPP JAMES A ,  SHANKLIN JAMES R ,  LAMB GORDON DAVID

    IPC: C10M161/00 ,  C10M141/06 ,  C10M163/00 ,  C10N30/04 ,  C10N30/08 ,  C10N40/04

    Abstract: PROBLEM TO BE SOLVED: To obtain a lubricating oil composition nonproblematic in the formation of sludge and the deterioration of a sealing agent during stop-and-go drive under high-humidity and low-temperature conditions by mixing an oil having lubricating viscosity with and a nitrogen-containing dispersant comprising a Mannich reaction product derived from a specified phenol and an aromatic aldehyde and/or an oxirane-ring-containing epoxide. SOLUTION: A nitrogen-containing dispersant has a total alkali value of 30-160. A Mannich reaction product is formed from a phenol containing one 30C or higher aliphatic substituent, formaldehyde and an amine compound containing ethylenepolyamine. The aromatic aldehyde used is vanillin, for example. The epoxide having terminal and/or internal oxirane rings is a 1-8C alkyl ester of a vegetable oil epoxide, for example. The nitrogen-containing dispersant is used in an amount of 2-75 pts.wt. aromatic aldehyde or the like per 100 pts.wt. Mannich reaction product.

    ENGINE OIL CONTAINING ALDEHYDE/EPOXIDE AND DITHIOCARBAMATE FOR IMPROVED SEALING PERFORMANCE, SLUDGE AND DEPOSIT PERFORMANCE
    16.
    发明专利
    ENGINE OIL CONTAINING ALDEHYDE/EPOXIDE AND DITHIOCARBAMATE FOR IMPROVED SEALING PERFORMANCE, SLUDGE AND DEPOSIT PERFORMANCE 失效

    公开(公告)号：JP2000063864A

    公开(公告)日：2000-02-29

    申请号：JP20397899

    申请日：1999-07-16

    Applicant: LUBRIZOL CORP

    Inventor： STACHEW CARL F ,  ABRAHAM WILLIAM D ,  SUPP JAMES A ,  SHANKLIN JAMES R ,  LAMB GORDON DAVID

    IPC: C10M141/08 ,  C10N10/02 ,  C10N10/04 ,  C10N30/04 ,  C10N30/06 ,  C10N40/25

    Abstract: PROBLEM TO BE SOLVED: To obtain a lubricating oil composition nonproblematic in sludge formation and the deterioration of a sealing agent during a stop-and-go drive under high-humidity and low-temperature conditions by mixing an oil having lubricating viscosity with a specified thiocarbamate and an aromatic aldehyde and/or an oxirane-ring-containing epoxide. SOLUTION: This thiocarbamate is represented by formula I [wherein R1 and R2 are each a 3-5C alkyl, an aryl, or an aralkyl or they may be combined with each other to form an alicyclic or heterocyclic ring together with the N atom; n is 1 or 2; when n is 1, T is a monovalent metal or CR3R4(CR12R13)aQ (wherein a is 0 or 1; R3, R4, R12 and R13 are each H, an alkyl or an aryl; Q is formula II, III or the like (wherein R5 is H, an alkyl or an aralkyl); and when n is 2, T is a divalent metal or a hydrocarbylene). The aromatic aldehyde used is vanillin, for example. The epoxide used is an alkyl ester of a vegetable epoxide, for example. 2-50 pts.wt. aromatic aldehyde or the like is used per 10 pts.wt. thiocarbamate.

Patent Agency Ranking