Treated mineral fillers suspensions of these fillers in polyols and their uses in polyurethane foams
US6765032B2 · kind B2 · utility
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14References
11Claims
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Key dates
| Filing date | Dec 13, 2002 |
| Grant date | Jul 20, 2004 |
| Priority date | — |
| Expiry date | Jan 23, 2023 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01P2006/90
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Method for the treatment of mineral fillers using organic phosphate treatment agents. Treated mineral fillers obtained by said method and suspension of these treated mineral fillers in polyols. Use of these suspensions in the manufacture of flexible, semirigid, or rigid polyurethane foams used for the manufacture of molded or nonmolded objects.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.