Organic phosphites resistant to hydrolysis, and process for preparing them
US4810579A · kind A · utility
6Cited by
1References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 11, 1988 |
| Grant date | Mar 7, 1989 |
| Priority date | — |
| Expiry date | Feb 11, 2008 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31663
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Solid organic phosphites in powder form, used to endow organic polymers with stability characteristics are made resistant to hydrolysis by treating said powder phosphites with a silane containing in its molecule at least two alkoxy groups and causing the silane to hydrolyze, and the formation and deposition of a siliconic polymer on the surface of powder particles to occur.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.