Silicone rubber or gel particles containing mineral oil
US4990556A · kind A · utility
20Cited by
12References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 17, 1990 |
| Grant date | Feb 5, 1991 |
| Priority date | — |
| Expiry date | Apr 17, 2010 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2383/04
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
This invention provides cured silicone rubber or gel particles exhibiting an average size of from 0.1 to 20,000 micrometers and containing from 0.5 to 70 weight percent, based on the weight of the particle, of entrapped mineral oil. When the particles are incorporated into a liquid or solid matrix material the oil is released from the particles into the matrix at a controlled rate and serves as a lubricating agent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.