Solid air freshener gels
US3969280A · kind A · utility
22Cited by
9References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 3, 1975 |
| Grant date | Jul 13, 1976 |
| Priority date | — |
| Expiry date | Apr 3, 1995 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61L9/048
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An improved air freshener gel which is substantially syneresis-free comprising in an aqueous system from 0.5-10% by weight of CMC, 0.01-10% by weight perfume, a source of trivalent cations selected from chromic ion, aluminum ion or mixtures sufficient to produce a weight ratio of CMC to effective weight of trivalent cation of 1:0.01 to 1:0.1 and water.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.