Phosphated silicone polymers
US5070171A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jun 27, 1990 |
| Grant date | Dec 3, 1991 |
| Priority date | — |
| Expiry date | Jun 27, 2010 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD06M2200/40
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
The invention relates to a series of novel organofunctional silicone polymers which have an phosphate pendant functionality present within the polymer. Compounds of the invention by virtue of their phosphate group, provide a nonvolatile lubricant, antistat which can be applied to a variety of fibers. The compounds of the invention deposit on the fiber surface thereby altering the surface's physical properties. The compounds of the present invention are prepared by phosphation of a hydroxyl group on the silicone polymer. The compounds useful as raw materials are dimethicone copolyols. The introduction of a phosphate group onto the silicone polymer is achieved by reaction of the hydroxyl group on the silicone with a suitable phosphating reagent. Another method of introducing the phosphate group is by the phosphation of the hydroxy containing vinyl intermediate which is subsequently reacted with the silicone polymer by hydrosilation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.