Low density polymer beads
US6930133B2 · kind B2 · utility
0Cited by
16References
20Claims
0Family size
Inventors
Key dates
| Filing date | May 30, 2003 |
| Grant date | Aug 16, 2005 |
| Priority date | — |
| Expiry date | Aug 27, 2023 |
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.