Process for inhibiting foaming utilizing maleic ester copolymer based defoamers, and defoamed compositions
Vinyl-type interpolymers and uses thereof
Alkoxylated vinyl polymer demulsifiers Patent #: 4968449
ApplicationNo. 458437 filed on 12/28/1989
US Classes:516/186, The compound contains -C(=O)OH or salt thereof (e.g., partial ester, fractional ester, `blown fatty acid`*)526/329.5Additional monomer is an ester derived from saturated carboxylic acid
ExaminersPrimary: Lovering, Richard D.
Assistant: Metzmaier, Daniel S.
Attorney, Agent or Firm
Foreign Patent References
International ClassesB01D 017/04
AbstractAn emulsion polymer having activity as a demulsifier for a w/o emulsion, particularly water-in-crude oil, having the general formula ##STR1##