N,N-Disubstituted sulfonyl hydrazines
US4175200A · kind A · utility
4Cited by
3References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 21, 1977 |
| Grant date | Nov 20, 1979 |
| Priority date | — |
| Expiry date | Apr 21, 1997 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J9/06
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
N,N'-disubstituted sulfonyl hydrazine with the following structural formula are disclosed: EQU R(SO.sub.2 NR.sup.1 NHR.sup.2).sub.n wherein the R.sup.1 and R.sup.2 groups are the same or different and are either --COOR.sup.3 or --CONHR.sup.4. These novel compounds are useful as high temperature blowing agents for gas-expandable polymers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.