Patent · US Expired

Low density polymer beads

US7361693B2 · kind B2 · utility

17Cited by
11References
8Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJul 18, 2005
Grant dateApr 22, 2008
Priority date
Expiry dateJul 18, 2025

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC08J2325/08
  • WIPO fieldOther special machines
  • WIPO sectorMechanical engineering

Abstract

Low density polymeric beads made by polymerizing monomeric building blocks into large crosslinked polymer molecules in porous, spherical bead form by droplet or suspension polymerization in the presence of a porogen.

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