Invention Grant
US07879972B2 Method of drying a material having a cohesive phase 有权
干燥具有内聚相的材料的方法

  • Patent Title: Method of drying a material having a cohesive phase
  • Patent Title (中): 干燥具有内聚相的材料的方法
  • Application No.: US12816676
    Application Date: 2010-06-16
  • Publication No.: US07879972B2
    Publication Date: 2011-02-01
  • Inventor: Gary S. Rea
  • Applicant: Gary S. Rea
  • Applicant Address: US MA Cambridge
  • Assignee: Genzyme Corporation
  • Current Assignee: Genzyme Corporation
  • Current Assignee Address: US MA Cambridge
  • Agent Chandra K. Mathew; Christopher M. Beck
  • Main IPC: C08F6/00
  • IPC: C08F6/00 C08J3/00
Method of drying a material having a cohesive phase
Abstract:
A method for drying a material such as a polymer hydrogel which passes through a cohesive phase as it dries is disclosed. The method comprises agitating a composition while removing liquid until the solids content of the composition reaches a level at which the composition enters a cohesive phase, halting agitation, removing liquid from the composition in the absence of agitation, and resuming agitation. Practice of the present invention can eliminate the problems associated with adhesion of a material to itself and to process equipment during the cohesive phase.
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