Process for melt grafting epoxy compounds to polymers
US5066726A · kind A · utility
7Cited by
2References
22Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 23, 1990 |
| Grant date | Nov 19, 1991 |
| Priority date | — |
| Expiry date | Apr 23, 2010 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F287/00
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A process to graft epoxy containing functional monomers to a base polymer is provided, the process comprising the steps of: providing a melt of a base polymer; containing the melt of the base polymer with a functional monomer in the presence of a free radical initiator at a temperature of less than 240.degree. C., the functional monomer comprising alpha-beta ethylenic unsaturation and an epoxy group; and recovering an epoxy functionalized polymer. Grafting the epoxy containing monomer to the base polymer at temperatures of 240.degree. C. and less results in a low level of hydrolyzed epoxy groups.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.