Invention Grant
US08419976B2 Polyelectrolyte complexes as thickeners for high ionic strength salt solutions 失效
聚电解质配合物作为高离子强度盐溶液的增稠剂

  • Patent Title: Polyelectrolyte complexes as thickeners for high ionic strength salt solutions
  • Patent Title (中): 聚电解质配合物作为高离子强度盐溶液的增稠剂
  • Application No.: US11988969
    Application Date: 2006-07-12
  • Publication No.: US08419976B2
    Publication Date: 2013-04-16
  • Inventor: Zhiqiang SongJianwen Mao
  • Applicant: Zhiqiang SongJianwen Mao
  • Applicant Address: DE Ludwigshafen
  • Assignee: BASF SE
  • Current Assignee: BASF SE
  • Current Assignee Address: DE Ludwigshafen
  • Agent Shiela A. Loggins
  • International Application: PCT/EP2006/064119 WO 20060712
  • International Announcement: WO2007/009917 WO 20070125
  • Main IPC: H01B1/00
  • IPC: H01B1/00 C08G18/42 C08K3/02
Polyelectrolyte complexes as thickeners for high ionic strength salt solutions
Abstract:
A polyelectrolyte complex composition capable of viscosifying or thickening an aqueous high salt-containing system comprises a mixture of at least one anionic polymer and at least one cationic polymer in an inorganic salt-containing aqueous medium. The anionic polymer and cationic polymer can each be linear and water-soluble, crosslinked and water-soluble, or crosslinked and water-insoluble or swellable.
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