| 摘要 |
PURPOSE:To obtain a polymer for a cutting oil having improved safety and environmental pollution inhibition and capable of providing excellent grinding performance, which comprises a polymer of a mixture of an alpha,beta-unsatd. carboxylic acid with its particular ester or the neutralization product of the polymer. CONSTITUTION:A polymer comprising a polymer obtd. by polymerizing a polymerizable monomer mixture, contg. an alpha,beta-unsatd. carboxylic acid and an alkyl or hydroxyalkyl ester of an alpha,beta-unsatd. carboxylic acid, or a polymer obtd. by partially or completely neutralizing the aforesaid polymer with an alkali. A preferred alpha,beta-unsatd. carboxylic acid includes acrylic and methacrylic acid. The amt. of the alpha,beta-unsatd. carboxylic acid is preferably 10-50wt%. It is preferred that the monomer mixture be polymerized by emulsion polymerization from the standpoint of productivity and stability of production. |
