FRICTION AND WEAR REDUCING AGENT FOR LUBRICATING OIL AND LUBRICATING OIL COMPOSITION CONTAINING SAME

    公开(公告)号:IN1028KON2014A

    公开(公告)日:2015-10-09

    申请号:IN1028KON2014

    申请日:2014-05-15

    Applicant: ADEKA CORP

    Abstract: 110 1822 4The purpose of the invention is to provide a very safe lubricating oil additive substantially free of metal elements or the like and possessing a friction and wear reducing effect as well as an extreme pressure performance equivalent to existing extreme pressure agents containing metal elements in lubrication uses. To achieve this purpose the invention provides a friction and wear reducing agent for lubricating oil the agent being characterized in comprising a copolymer (A) for which an alkyl acrylate (a) represented by general formula (1) and a hydroxyalkyl acrylate (b) represented by general formula (2) are essential constituent monomers the constituent ratio of (a) and (b) being (a)/(b)=50/50 to 90/10 (molar ratio) and the weight average molecular weight being 2 000 to less than 40 000. (1) (In the formula R represents a C alkyl group.) (2) (In the formula R represents a C alkylene group.)

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