| 摘要 |
An additive is described for increasing the adherence and cohesion of oils and greases based on synthetic polymer compounds soluble in an oil phase, characterized in that they contain, as synthetic polymer compounds, carboxyl group-free homopolymers and copolymers of esters of acrylic acid and/or methacrylic acid and monofunctional alcohols with at least 4 atoms of C, i.e. esters of (meth)acrylic acid, which can also contain other copolymerisable comonomers, free from carboxyl groups, in proportions which at the most are roughly equal and have a limit viscosity [ eta ] measured in tetrahydrofurane at 20 DEG C of at least 300 ml.g<-1>. Also described are a process for incorporating the polymer compounds in carrier oils as well as oils and greases containing said additive. |
