Particulate filler, coated with material bonded thereto and containing a sulfur-containing group which releases sulfur as a curing agent for s-curable unsaturated polymers
US4377418A · kind A · utility
11Cited by
5References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 10, 1981 |
| Grant date | Mar 22, 1983 |
| Priority date | — |
| Expiry date | Mar 10, 2001 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01P2006/80
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A coated particulate filler having bound thereto a material comprising an acidic group reactive with the filler and a sulphur-containing group which is not reactive with the filler but which is decomposable to a sulphur-containing species which is capable of taking part in a sulphur-based curing reaction, a composition containing the filler and an organic polymeric material which contains ethylenic unsaturation and which is curable by reaction with sulphur, a process for producing the coated particulate filler, and a process for producing the composition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.