Patent · US Active

Double-layered compacted solid water-purification product

US8663496B2 · kind B2 · utility

1Cited by

9References

18Claims

0Family size

Assignee

EUROTAB · FR

Inventors

Paul Branlard · Val-de-Reuil, FR
Philippe Desmarescaux · Val-de-Reuil, FR
Murielle Moneron · Firminy, FR

Key dates

Filing date	Jul 18, 2005
Grant date	Mar 4, 2014
Priority date	—
Expiry date	Jul 13, 2030

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC02F2305/14
WIPO fieldEnvironmental technology
WIPO sectorChemistry

Abstract

The invention relates to a double-layered compacted solid water-purification product, comprising at least one first layer and at least one second layer, characterized in that the first layer comprises at least one flocculating system and at least one dispersion system, the second layer comprises at least one disinfectant which liberates free chlorine on contact with water and at least one excipient for the disinfectant, whereby said excipient releases the disinfectant into the water at a controlled rate such that the combination of excipient and disinfectant releases 0.1 to 100 mg/l of free chlorine per hour. The invention further relates to the method for production of such a product.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.