Grafted polymers and method of preparing and using same
US4278777A · kind A · utility
24Cited by
3References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 27, 1980 |
| Grant date | Jul 14, 1981 |
| Priority date | — |
| Expiry date | Mar 27, 2000 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S525/904
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A dry grafting method of grafting a vinyl monomer onto a polymer, which method comprises admixing into an essentially dry, solvent-swollen, finely-divided, particulate, solid, polymer admixture, wherein the polymer has free radicals formed thereon and the admixture is essentially free of a polymerization initiator, a small grafting amount in incremental portions of a vinyl-monomer material to be grafted onto the swollen polymer, the amount of vinyl monomer sufficient to maintain an essentially free-flow, stirrable, particulate admixture, and effecting grafting of the vinyl monomer to the polymer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.