Compositions containing fragrances and powdered water-soluble polymers and toilet blocks produced therefrom
US6703012B1 · kind B1 · utility
22Cited by
4References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 18, 1999 |
| Grant date | Mar 9, 2004 |
| Priority date | — |
| Expiry date | Jul 23, 2020 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08K5/0008
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Described is a composition of matter comprising a powdered, water-soluble, water-dispersible or water-swellable polymer, a compatible fragrance, either as a blend of fragrance with polymer or separately mixed, and one or more surfactants. The polymer may be extruded polyvinyl alcohol or partially hydrolyzed polyvinyl acetate. Also described is a toilet element moulded from the composition of matter, which may be either a toilet rim block for use in a toilet bowl, or a free-standing block for use in a toilet cistern, and processes for comparing the composition of matter and toilet element.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.