Polymer-oil-black masterbatch
US4005053A · kind A · utility
19Cited by
8References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 27, 1975 |
| Grant date | Jan 25, 1977 |
| Priority date | — |
| Expiry date | May 27, 1995 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2309/00
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
An improved masterbatch of polymer, oil and carbon black is provided, and a process for the manufacture thereof, in which the polymer contains reactive groups and the masterbatch contains a crosslinking agent reactive with the reactive groups of the polymer in sufficient amount to form a low concentration of crosslinks in order to increase the strength of the polymer, the crosslinks being easily broken by the action of shear and/or heat and reformable thereafter, so that high levels of oil and carbon black can be incorporated into the masterbatch.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.