Invention Grant
US09556335B2 Shelf life of polyol blends containing halogenated olefins by encapsulation of active components 有权
含有卤代烯烃的多元醇共混物通过活性组分的包封保存

  • Patent Title: Shelf life of polyol blends containing halogenated olefins by encapsulation of active components
  • Patent Title (中): 含有卤代烯烃的多元醇共混物通过活性组分的包封保存
  • Application No.: US14374616
    Application Date: 2013-01-31
  • Publication No.: US09556335B2
    Publication Date: 2017-01-31
  • Inventor: Benjamin Bin ChenJoseph S. CostaLaurent AbbasSri R. Seshadri
  • Applicant: Arkema Inc.
  • Applicant Address: US PA King of Prussia
  • Assignee: Arkema Inc.
  • Current Assignee: Arkema Inc.
  • Current Assignee Address: US PA King of Prussia
  • Agent Steven D. Boyd
  • International Application: PCT/US2013/023974 WO 20130131
  • International Announcement: WO2013/116416 WO 20130808
  • Main IPC: C08L75/04
  • IPC: C08L75/04 C08G18/40 C08J9/14 C08G101/00
Shelf life of polyol blends containing halogenated olefins by encapsulation of active components
Abstract:
The shelf life of polyurethane polyol pre-blends containing halogenated olefins is extended by encapsulation of active components such as catalysts and/or surfactants. The active component is encapsulated in a crystallizable or thermoplastic polymer. The encapsulated particles have a size of 2,800 microns or less and the active components are not significantly leaked out, particularly in the presence of halogenated olefins.
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