Resin-fillers produced in-situ in silicone polymer compositions method for preparation of the compositions
US6075087A · kind A · utility
7Cited by
19References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 31, 1998 |
| Grant date | Jun 13, 2000 |
| Priority date | — |
| Expiry date | Dec 31, 2018 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G77/80
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
This invention relates to resin-fillers and compositions containing the resin-fillers. Resin-fillers are the reaction product of a resin having monofunctional siloxane (M) units and tetrafunctional siloxane (Q) units, chemically linked to a crosslinker by addition reaction. The resin-fillers have properties more similar to those of silica fillers and less like those of conventional MQ resins. The resin-fillers are insoluble in solvents, form homogeneous blends with silicone polymers, and dramatically impact modulus and viscosity of a polymer even at low (e.g. 5 to 10 wt %) loading.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.