Process for the maleation of polyethylene waxes
US5420303A · kind A · utility
7Cited by
56References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 16, 1993 |
| Grant date | May 30, 1995 |
| Priority date | — |
| Expiry date | Dec 16, 2013 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F255/02
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A process for the preparation of a maleated polyethylene wax is disclosed. This process entails mixing in the melt phase polyethylene, maleic anhydride, free radical initiator and a chain transfer agent m-di-isopropylbenzene. This process can be a continuous process either in a stirred reactor or twin screw extruder. The resulting maleated polyethylene wax has a high acid number, essentially no objectionable odor, and a Gardner color number less than 3.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.