Patent · US Active

Synthesis of hyperbranched polyacrylates by emulsion polymerizsation of inimers

US9777082B2 · kind B2 · utility

1Cited by
1References
10Claims
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Key dates

Filing dateOct 5, 2012
Grant dateOct 3, 2017
Priority date—
Expiry dateNov 3, 2032

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC08F2438/03
  • WIPO fieldMacromolecular chemistry, polymers
  • WIPO sectorChemistry

Abstract

A method for the production of hyperbranched polyacrylates includes the step of reacting acrylic inimers through controlled living polymerization in aqueous conditions. The inimers may have the formula:Wherein X is a halogen, a thiocarbonylthio or nitroxide group, and R is hydrogen, methyl, dodecyl, and groups containing mesogenin substituents, fluorocarbon substituents, siloxane substituents and oxyethylene substituents. In particular, the aqueous condition is emulsion or miniemulsion. The polymerization may be reverse ATRP, SN&RI and AGET polymerization or RAFT polymerization (with thiocarbonylthio X groups) or nitroxide mediated polyeization (with nitroxide X groups).

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