Low density polymer beads
US7361693B2 · kind B2 · utility
17Cited by
11References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 18, 2005 |
| Grant date | Apr 22, 2008 |
| Priority date | — |
| Expiry date | Jul 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.