Lavatory cleaning block
US5763376A · kind A · utility
29Cited by
5References
33Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 7, 1995 |
| Grant date | Jun 9, 1998 |
| Priority date | — |
| Expiry date | Jun 7, 2015 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC11D17/0056
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A toilet cleaning block that releases a halogen containing sanitizing agent in a controlled, substantially constant rate for about 2 to about 4 months of constant contact with water and is then completely dissolved in the water comprises an admixture of about 50% to about 80% by weight of a halogen containing sanitizing agent, about 20% to about 40% by weight of a bulking agent such as aluminum hydroxide, about 0% to about 20% by weight sodium bicarbonate, and about 1 to about 20% by weight of a sacrificial dissolution rate regulating agent such as sodium chloride.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.