Filler-containing liquid silicone rubber base of improved color and reproducibility
US8907006B1 · kind B1 · utility
3Cited by
7References
19Claims
0Family size
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Key dates
| Filing date | Jul 10, 2013 |
| Grant date | Dec 9, 2014 |
| Priority date | — |
| Expiry date | Jul 10, 2033 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2995
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Liquid silicone rubber base polymer compositions having improved color are prepared by reaction of fumed silica reinforcing filler with a silazane, and without drying the silazane-treated filler, an aliphatically unsaturated silicone is added, heated to above 80° C., and then further aliphatically unsaturated silicone is added. The compositions have improved whiteness and color reproducibility.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.