Polyglycidyl azides comprising an acyloxy terminal group and an azide terminal group
US6323352A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 25, 2000 |
| Grant date | Nov 27, 2001 |
| Priority date | — |
| Expiry date | Sep 25, 2020 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC06B45/105
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A subject-matter of the present invention is novel polyglycidyl azides of general formula (I): ##STR1## in which: PA1 R.sub.1 represents an alkylene chain comprising 2 to 4 carbon atoms, PA1 R.sub.2 represents an alkyl chain comprising 1 to 4 carbon atoms, PA1 x represents an integer such that 4.ltoreq.x.ltoreq.10. These compounds are not detonatable and are of use in particular as energetic plasticizers in solid pyrotechnic compositions. They can be obtained according to a 3-stage process starting from epichlorohydrin by preliminary synthesis of polyepichlorohydrin with a hydroxyl terminal group of formula (II): ##STR2## then acylation of this compound in order to obtain a polyepichlorohydrin with an acyloxy terminal group of formula (IV): ##STR3## and then azidation of this compound.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.