Preparation of surface-functional polymer particles
US5306561A · kind A · utility
16Cited by
2References
27Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 20, 1992 |
| Grant date | Apr 26, 1994 |
| Priority date | — |
| Expiry date | Feb 20, 2012 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31536
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Polymer particles having a hydrophobic core and various surface functional groups, particularly hydrophilic and chiral surface functional groups, are produced by adding a non-emulsified functional polymerizable monomer to the aqueous phase of a dispersion of soluble polymer particles which have previously been swollen with an emulsified-monomer and polymerizing the monomers. Preferably the particles are uniform macroporous beads.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.