Polyalkylene gylcol vinyl phosphates
US3943198A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jul 22, 1974 |
| Grant date | Mar 9, 1976 |
| Priority date | — |
| Expiry date | Jul 22, 1994 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S260/24
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Polyalkylene glycol vinyl phosphates having the formula: ##EQU1## ARE PROVIDED WHEREIN R is a polyalkylene glycol residue, m and n are integers from about 1 to about 100, R' is selected from the group consisting of hydrogen, lower alkyl, and lower haloalkyl, provided that if R' is lower haloalkyl, it is not monohalo-substituted on its alpha carbon atom, and Z and Y are selected from the group consisting of hydrogen, lower alkyl and lower haloalkyl. They are formed by reacting the transesterification product of a tertiary phosphite and a polyalkylene glycol with a carbonyl compound having halogen monosubstitution on one of its alpha carbon atoms. These compositions can be used to flame retard a number of normally flamable substrates.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.