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.)
Abstract:
An object of the present invention is to provide a flame retardant composition having such a property that a flame retardant component is adhered in a larger amount onto a fiber than that in the case of a flame retardant composition that has heretofore been used. In order to achieve the obj ect, the present invention provides a flame retardant composition, including: at least one phosphorus compound represented by the following general formula (1) or (2); a cationic surfactant; and a nonionic surfactant: in the formula (1), A represents a divalent hydrocarbon group having 1 to 20 carbon atoms, n represents a number of from 1 to 10, and R 1 to R 8 each independently represent a hydrogen atom or an alkyl group having 1 to 20 carbon atoms; in the formula (2), R 9 to R 14 each independently represent a hydrogen atom or an alkyl group having 1 to 20 carbon atoms, and r 1 , r 2 , and r 3 each independently represent a number of 1 or 0.