Patent · US Active

Polymer microparticles and production method for the same

US7923517B2 · kind B2 · utility

2Cited by
7References
15Claims
0Family size

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Key dates

Filing dateNov 4, 2008
Grant dateApr 12, 2011
Priority date
Expiry dateApr 24, 2029

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY02P20/54
  • WIPO fieldMacromolecular chemistry, polymers
  • WIPO sectorChemistry

Abstract

A method for producing polymer particles which includes: forming polymer particles by heterogeneous polymerization of a monomer in a supercritical fluid and/or subcritical fluid, wherein a radical polymerization initiator (I) having in a molecular at least a group having radical-generation capability and a group having affinity for the supercritical fluid and/or subcritical fluid, and a radical polymerization initiator (II) are used in combination.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.