used as thickening agents

Full Title

Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions > Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds > containing monomers having an unsaturated radical bound to a carboxyl radical, e.g. acrylate type > polycarboxylic, e.g. maleic acid > used as thickening agents